umu.sePublications
Change search
Refine search result
1234567 151 - 200 of 960
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 151. di Summa, Pietro G
    et al.
    Raffoul, Wassim
    Kalbermatten, Daniel F
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery. Plastic Surgery, CHUV, University of Lausanne, Lausanne, Switzerland.
    Paper clip microretractor2009In: Journal of reconstructive microsurgery, ISSN 0743-684X, E-ISSN 1098-8947, Vol. 25, no 4, p. 273-273Article in journal (Other academic)
  • 152. Djureinovic, Tatjana
    et al.
    Lindblom, Annika
    Dalén, Johan
    Dedorson, Stefan
    Edler, David
    Hjern, Fredrik
    Holm, Jörn
    Lenander, Claes
    Lindforss, Ulrik
    Lundqvist, Nils
    Olivecrona, Hans
    Olsson, Louise
    Påhlman, Lars
    Rutegård, Jörgen
    Umeå University, Faculty of Medicine, Surgical and Perioperative Sciences, Surgery.
    Smedh, Kennet
    Törnqvist, Anders
    Eiberg, Hans
    Bisgaard, Marie Luise
    The CHEK2 1100delC variant in Swedish colorectal cancer.2006In: Anticancer Res, ISSN 0250-7005, Vol. 26, no 6C, p. 4885-8Article in journal (Refereed)
  • 153.
    Djuvfelt, Elin
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Long-term surgical complications following caesarean section2018Independent thesis Basic level (professional degree), 20 credits / 30 HE creditsStudent thesis
  • 154.
    Dogan, Emanuel
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Circulatory and metabolic effects in the visceral organs when using aortic balloon occlusion.A physiological study on an emerging endovascular trauma management modality.2015Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
  • 155.
    Doohan, Isabelle
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Surviving a major bus crash: experiences from the crash and five years after2017Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Background Major road traffic crashes (RTCs) can have a significant impact on the survivors, their family, and their friends, as well as on emergency personnel, volunteers, and others involved. However, survivors’ perspectives are rare or missing in research on major RTCs in Sweden. A comprehensive understanding of the survivors and their experiences is also lacking. By studying what it is like to survive a major RTC, the care and support provided to survivors can be adapted and improved.

    The overall aim is to broaden the understanding of the short- and long-term consequences and experiences of surviving a major bus crash.

    Methods The contexts are two bus crashes that occurred in Sweden, in February 2007 and December 2014. In total, the participants are 110 out of the 112 survivors, and the data is collected through telephone interviews, official reports, and medical records at one month, three months, and five years after the crashes. Analysis methods include qualitative content analysis, descriptive statistics, thematic analysis, and mixed methods research analysis.

    Results One month after the crash, most of the survivors were experiencing minor or major physical and/or psychological stress in their everyday lives (Study I). Four main findings were identified regarding their experiences of immediate care (Study II): prehospital discomfort, lack of compassionate care, dissatisfaction with crisis support, and satisfactory initial care and support. The importance of compassion and being close to others was also highlighted. Five years after the bus crash in Rasbo (Study III), survivors were still struggling with physical injuries and mental problems. Other long-term consequences were a lasting sense of connectedness among fellow passengers, a gratitude for life, as well as feelings of distress in traffic, especially in regard to buses. The main findings from study IV indicated that injury severity did not seem to affect mental health, and that social aspects were important to the recovery process. There was an interconnection among survivors in which they seemed to be linked to each other’s recovery.

    Conclusion A strong need for short- and long-term social and psychological support in terms of compassion and community is evident in all the studies. The survivors ought to be acknowledged as capable and having the resources to contribute to their own and their fellow survivors’ recovery and health. There is a need for greater understanding of how different the survivors are, with each one of them having various physical, psychological, social, and existential needs. 

  • 156.
    Doohan, Isabelle
    et al.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery. Umeå University, Faculty of Medicine, Department of Nursing. Umeå University, Arctic Research Centre at Umeå University.
    Björnstig, Ulf
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Östtlund, Ulrika
    Saveman, Britt-Inger
    Umeå University, Faculty of Medicine, Department of Nursing. Umeå University, Arctic Research Centre at Umeå University.
    Exploring Injury Panorama, Consequences, and Recovery among Bus Crash Survivors: A Mixed-Methods Research Study2017In: Prehospital and Disaster Medicine, ISSN 1049-023X, E-ISSN 1945-1938, Vol. 32, no 2, p. 165-174Article in journal (Refereed)
    Abstract [en]

    Objective The aim of this study was to explore physical and mental consequences and injury mechanisms among bus crash survivors to identify aspects that influence recovery. Methods The study participants were the total population of survivors (N=56) from a bus crash in Sweden. The study had a mixed-methods design that provided quantitative and qualitative data on injuries, mental well-being, and experiences. Results from descriptive statistics and qualitative thematic analysis were interpreted and integrated in a mixed-methods analysis. Results Among the survivors, 11 passengers (20%) sustained moderate to severe injuries, and the remaining 45 (80%) had minor or no physical injuries. Two-thirds of the survivors screened for posttraumatic stress disorder (PTSD) risk were assessed, during the period of one to three months after the bus crash, as not being at-risk, and the remaining one-third were at-risk. The thematic analysis resulted in themes covering the consequences and varying aspects that affected the survivors' recoveries. The integrated findings are in the form of four core cases of survivors who represent a combination of characteristics: injury severity, mental well-being, social context, and other aspects hindering and facilitating recovery. Core case Avery represents a survivor who had minor or no injuries and who demonstrated a successful mental recovery. Core case Blair represents a survivor with moderate to severe injuries who experienced a successful mental recovery. Core case Casey represents a survivor who sustained minor injuries or no injuries in the crash but who was at-risk of developing PTSD. Core case Daryl represents a survivor who was at-risk of developing PTSD and who also sustained moderate to severe injuries in the crash. Conclusion The present study provides a multi-faceted understanding of mass-casualty incident (MCI) survivors (ie, having minor injuries does not always correspond to minimal risk for PTSD and moderate to severe injuries do not always correspond to increased risk for PTSD). Injury mitigation measures (eg, safer roadside material and anti-lacerative windows) would reduce the consequences of bus crashes. A well-educated rescue team and a compassionate and competent social environment will facilitate recovery.

  • 157.
    Doohan, Isabelle Marie
    et al.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery. Umeå University, Faculty of Medicine, Department of Nursing. Affiliated to Arctic Research Centre, Umeå University, Umeå, Sweden.
    Gyllencreutz, Lina
    Umeå University, Faculty of Medicine, Department of Nursing. Affiliated to Arctic Research Centre, Umeå University, Umeå, Sweden.
    Björnstig, Ulf
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Saveman, Britt-Inger
    Umeå University, Faculty of Medicine, Department of Nursing. Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery. Affiliated to Arctic Research Centre, Umeå University, Umeå, Sweden.
    Survivors' experiences of consequences and recovery five years after a major bus crash2018In: Scandinavian Journal of Caring Sciences, ISSN 0283-9318, E-ISSN 1471-6712, Vol. 32, no 3, p. 1179-1187Article in journal (Refereed)
    Abstract [en]

    Rationale: There is a lack of long-term follow-up studies focused on injured and uninjured survivors’ experiences of the recovery process after major traffic crashes.

    Aim/objective: To explore survivors’ experiences of long-term physical and psychological consequences and recovery five years after a major bus crash.

    Methodological design and justification: A qualitative design was used to explore experiences in a 5-year follow-up study.

    Research methods: Participants were 54 survivors of a bus crash with 56 survivors and six fatalities. Telephone interviews were analyzed with qualitative content analysis.

    Results: The theme overarching the categories is “visible and existential marks in everyday life” and it represents the range of the crash’s influence in the survivors’ lives. The first category, “health consequences in daily life,” has four subcategories covering quick recovery, suffering in daily life, distress in traffic situations, and long-term pain. Described reasons for quick recovery among survivors were previous crisis experiences, traveling alone, being uninjured, and not being exposed to traumatic impressions. For the other survivors, being reminded of the crash caused disturbing reactions, such as sweating, anxiety, and flashbacks. Survivors avoided going by bus if they could. A group of the injured survivors were still suffering from limiting and painful injuries. The second category, “oneself and social connection,” has three subcategories that include self-awareness, impact on relationships, and connectedness. Survivors developed a stronger bond to their significant other or separated from their partner within the first couple of years. Friendships and a sense of connectedness among survivors were sources of long-lasting comfort and support.

    Conclusion: There is a need for more information about disruptive long-lasting consequences, such as travel anxiety, and available treatments. Initially, health-promoting connectedness can be facilitated by treating survivors as a group of people who belong together, from the day of the crash and throughout the recovery process. 

  • 158.
    Doohan, Isabelle
    et al.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery. Centre for Research and Development in Disaster Medicine, Umeå University.
    Saveman, Britt-Inger
    Umeå University, Faculty of Medicine, Department of Nursing. Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Impact on life after a major bus crash - a qualitative study of survivors' experiences2014In: Scandinavian Journal of Caring Sciences, ISSN 0283-9318, E-ISSN 1471-6712, Vol. 28, no 1, p. 155-163Article in journal (Refereed)
    Abstract [en]

    Background Crashes occur regularly throughout the world and can result in multiple fatalities and many injuries. Research into how survivors experience a crash is very limited. AimTo describe and analyse the nonphysical consequences of a multifatality bus crash in Sweden and the subsequent effect on the surviving passengers' lives. MethodThe participants were all (n=56) of the survivors of a major bus crash. The passengers were interviewed approximately one month after the bus crash. The interviews were analysed using a qualitative content analysis. ResultsPrior to the arrival of rescue personnel at the crash site, helpfulness emerged among the passengers. Further, the crash generated an impact on the surviving passengers' lives from a short-term perspective. The passengers displayed a diverse need for crisis support; informal support from family and friends was essential for the early healing process. Sleep difficulties and a change in travel routines were the most common consequences. Lastly, passengers sought closure in order to move on with their lives. ConclusionThe passengers' reactions to and behaviour following a crash offer an insight into the, relatively unexplored, interaction between people experiencing a major road traffic crash. It is necessary to have a flexible crisis support system, and the vital role of family support ought to be upgraded.

  • 159.
    Doohan, Isabelle
    et al.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery. Umeå University, Faculty of Medicine, Department of Nursing.
    Saveman, Britt-Inger
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery. Umeå University, Faculty of Medicine, Department of Nursing. Umeå University, Arctic Research Centre at Umeå University.
    Need for compassion in prehospital and emergency care: a qualitative study on bus crash survivors' experiences2015In: International Emergency Nursing, ISSN 1755-599X, E-ISSN 1878-013X, Vol. 23, no 2, p. 115-119Article in journal (Refereed)
    Abstract [en]

    Aim: To explore the survivors' experiences after a major bus crash. Background: Survivors' experiences of emergency care after transportation related major incidents are relatively unexplored, with research involving survivors mainly focused on pathological aspects or effects of crisis support. Methods: Semi-structured telephone interviews were conducted with 54 out of 56 surviving passengers 5 years after a bus crash in Sweden. Interviews were analyzed using qualitative content analysis. Results: Prehospital discomfort, lack of compassionate care, dissatisfaction with crisis support and satisfactory initial care and support are the categories. Lack of compassion in emergency departments was identified as a main finding. Lack of compassion caused distress among survivors and various needs for support were not met. Survivors' desire to be with their fellow survivors the day of the crash was not facilitated after arriving at emergency departments. Conclusions: Connectedness among survivors ought to be promoted upon arrival at emergency departments. There is a need for emergency department professionals to be sufficiently educated in compassionate care.

  • 160. Duarte-Salles, Talita
    et al.
    Misra, Sandeep
    Stepien, Magdalena
    Plymoth, Amelie
    Muller, David
    Overvad, Kim
    Olsen, Anja
    Tjonneland, Anne
    Baglietto, Laura
    Severi, Gianluca
    Boutron-Ruault, Marie-Christine
    Turzanski-Fortner, Renee
    Kaaks, Rudolf
    Boeing, Heiner
    Aleksandrova, Krasimira
    Trichopoulou, Antonia
    Lagiou, Pagona
    Bamia, Christina
    Pala, Valeria
    Palli, Domenico
    Mattiello, Amalia
    Tumino, Rosario
    Naccarati, Alessio
    Bueno-de-Mesquita, H. B(as).
    Peeters, Petra H.
    Weiderpass, Elisabete
    Quiros, J. Ramon
    Agudo, Antonio
    Sanchez-Cantalejo, Emilio
    Ardanaz, Eva
    Gavrila, Diana
    Dorronsoro, Miren
    Werner, Mårten
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
    Hemmingsson, Oskar
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Ohlsson, Bodil
    Sjoberg, Klas
    Wareham, Nicholas J.
    Khaw, Kay-Tee
    Bradbury, Kathryn E.
    Gunter, Marc J.
    Cross, Amanda J.
    Riboli, Elio
    Jenab, Mazda
    Hainaut, Pierre
    Beretta, Laura
    Circulating Osteopontin and Prediction of Hepatocellular Carcinoma Development in a Large European Population2016In: Cancer Prevention Research, ISSN 1940-6207, E-ISSN 1940-6215, Vol. 9, no 9, p. 758-765Article in journal (Refereed)
    Abstract [en]

    We previously identified osteopontin (OPN) as a promising marker for the early detection of hepatocellular carcinoma (HCC). In this study, we investigated the association between prediagnostic circulating OPN levels and HCC incidence in a large population-based cohort. A nested case-control study was conducted within the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort. During a mean follow-up of 4.8 years, 100 HCC cases were identified. Each case was matched to two controls and OPN levels were measured in baseline plasma samples. Viral hepatitis, liver function, and a-fetoprotein (AFP) tests were also conducted. Conditional logistic regression models were used to calculate multivariable odds ratio (OR) and 95% confidence intervals (95% CI) for OPN levels in relation to HCC. Receiver operating characteristics curves were constructed to determine the discriminatory accuracy of OPN alone or in combination with other liver biomarkers in the prediction of HCC. OPN levels were positively associated with HCC risk (per 10% increment, ORmultivariable = 1.30; 95% CI, 1.14-1.48). The association was stronger among cases diagnosed within 2 years of follow-up. Adding liver function tests to OPN improved the discriminatory performance for subjects who developed HCC (AUC = 0.86). For cases diagnosed within 2 years, the combination of OPN and AFP was best able to predict HCC risk (AUC = 0.88). The best predictive model for HCC in this low-risk population is OPN in combination with liver function tests. Within 2 years of diagnosis, the combination of OPN and AFP best predicted HCC development, suggesting that measuring OPN and AFP could identify high-risk groups independently of a liver disease diagnosis.

  • 161. Duell, Eric J.
    et al.
    Travier, Noemie
    Lujan-Barroso, Leila
    Dossus, Laure
    Boutron-Ruault, Marie-Christine
    Clavel-Chapelon, Francoise
    Tumino, Rosario
    Masala, Giovanna
    Krogh, Vittorio
    Panico, Salvatore
    Ricceri, Fulvio
    Luisa Redondo, Maria
    Dorronsoro, Miren
    Molina-Montes, Esther
    Huerta, Jose M.
    Barricarte, Aurelio
    Khaw, Kay-Tee
    Wareham, Nick J.
    Allen, Naomi E.
    Travis, Ruth
    Siersema, Peter D.
    Peeters, Petra H. M.
    Trichopoulou, Antonia
    Fragogeorgi, Eirini
    Oikonomou, Eleni
    Boeing, Heiner
    Schuetze, Madlen
    Canzian, Federico
    Lukanova, Annekatrin
    Tjonneland, Anne
    Roswall, Nina
    Overvad, Kim
    Weiderpass, Elisabete
    Gram, Inger Torhild
    Lund, Eiliv
    Lindkvist, Bjorn
    Johansen, Dorthe
    Ye, Weimin
    Umeå University, Faculty of Medicine, Department of Biobank Research.
    Sund, Malin
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Fedirko, Veronika
    Jenab, Mazda
    Michaud, Dominique S.
    Riboli, Elio
    Bueno-de-Mesquita, H. Bas
    Menstrual and reproductive factors in women, genetic variation in CYP17A1, and pancreatic cancer risk in the European prospective investigation into cancer and nutrition (EPIC) cohort2013In: International Journal of Cancer, ISSN 0020-7136, E-ISSN 1097-0215, Vol. 132, no 9, p. 2164-2175Article in journal (Refereed)
    Abstract [en]

    Menstrual and reproductive factors and exogenous hormone use have been investigated as pancreatic cancer risk factors in case-control and cohort studies, but results have been inconsistent. We conducted a prospective examination of menstrual and reproductive factors, exogenous hormone use and pancreatic cancer risk (based on 304 cases) in 328,610 women from the EPIC cohort. Then, in a case-control study nested within the EPIC cohort, we examined 12 single nucleotide polymorphisms (SNPs) in CYP17A1 (an essential gene in sex steroid metabolism) for association with pancreatic cancer in women and men (324 cases and 353 controls). Of all factors analyzed, only younger age at menarche (<12 vs. 13 years) was moderately associated with an increased risk of pancreatic cancer in the full cohort; however, this result was marginally significant (HR = 1.44; 95% CI = 0.992.10). CYP17A1 rs619824 was associated with HRT use (p value = 0.037) in control women; however, none of the SNPs alone, in combination, or as haplotypes were associated with pancreatic cancer risk. In conclusion, with the possible exception of an early age of menarche, none of the menstrual and reproductive factors, and none of the 12 common genetic variants we evaluated at the CYP17A1 locus makes a substantial contribution to pancreatic cancer susceptibility in the EPIC cohort.

  • 162.
    Edin, Sofia
    et al.
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Kaprio, Tuomas
    Department of Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. Translational Cancer Medicine Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland..
    Hagström, Jaana
    Translational Cancer Medicine Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland. Department of Pathology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland..
    Larsson, Pär
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology. Umeå University, Faculty of Medicine, Department of Clinical Microbiology, Clinical Bacteriology. Umeå University, Faculty of Medicine, Department of Medical Biosciences, Medical and Clinical Genetics.
    Mustonen, Harri
    Department of Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. Translational Cancer Medicine Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland..
    Böckelman, Camilla
    Department of Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. Translational Cancer Medicine Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland..
    Strigård, Karin
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Gunnarsson, Ulf
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Haglund, Caj
    Department of Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland. Translational Cancer Medicine Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland..
    Palmqvist, Richard
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    The Prognostic Importance of CD20+ B lymphocytes in Colorectal Cancer and the Relation to Other Immune Cell subsets2019In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 9, no 1, article id 19997Article in journal (Refereed)
    Abstract [en]

    The anti-tumour immune response is critical to patient prognosis in colorectal cancer (CRC). The aim of this study was to investigate infiltration of B lymphocytes into CRC tumours, and their clinical relevance, prognostic value and relation to other immune cell subsets. We used multiplexed immunohistochemistry and multispectral imaging to assay the amount of infiltrating CD20+ B lymphocytes along with infiltration of CD8+ cytotoxic T cells, FOXP3+ T regulatory cells, CD68+ macrophages and CD66b+ neutrophils, in 316 archival CRC tissue specimens. A higher density of infiltrating CD20+ B lymphocytes was associated with tumours of the right colon (P = 0.025) and of lower stages (P = 0.009). Furthermore, patients whose tumours were highly infiltrated by CD20+ B lymphocytes had a significantly improved disease-specific survival (HR = 0.45, 95% CI 0.28-0.73, P = 0.001), which remained significant in multivariable analysis. CD20+ B lymphocytes were highly and positively associated with CD8+ T lymphocytes (P < 0.001), and part of the prognostic role was found to be a cooperative effect between these lymphocyte subsets. Our results support a favourable prognostic value of tumour-infiltrating CD20+ B lymphocytes in CRC. Furthermore, a cooperative prognostic effect between CD20+ B lymphocytes and CD8+ T lymphocytes is suggested.

  • 163.
    Edin, Sofia
    et al.
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Kaprio, Tuomas
    Hagström, Jaana
    Larsson, Pär
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Mustonen, Harri
    Böckelman, Camilla
    Strigård, Karin
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Gunnarsson, Ulf
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Haglund, Caj
    Palmqvist, Richard
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    The Prognostic Importance of CD20+ B lymphocytes in Colorectal Cancer and the Relation to Other Immune Cell subsets2019In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 9, article id 19997Article in journal (Refereed)
    Abstract [en]

    The anti-tumour immune response is critical to patient prognosis in colorectal cancer (CRC). The aim of this study was to investigate infiltration of B lymphocytes into CRC tumours, and their clinical relevance, prognostic value and relation to other immune cell subsets. We used multiplexed immunohistochemistry and multispectral imaging to assay the amount of infiltrating CD20(+) B lymphocytes along with infiltration of CD8(+) cytotoxic T cells, FOXP3(+) T regulatory cells, CD68(+) macrophages and CD66b(+) neutrophils, in 316 archival CRC tissue specimens. A higher density of infiltrating CD20(+) B lymphocytes was associated with tumours of the right colon (P = 0.025) and of lower stages (P = 0.009). Furthermore, patients whose tumours were highly infiltrated by CD20(+) B lymphocytes had a significantly improved disease-specific survival (HR = 0.45, 95% CI 0.28-0.73, P = 0.001), which remained significant in multivariable analysis. CD20(+) B lymphocytes were highly and positively associated with CD8(+) T lymphocytes (P < 0.001), and part of the prognostic role was found to be a cooperative effect between these lymphocyte subsets. Our results support a favourable prognostic value of tumour-infiltrating CD20(+) B lymphocytes in CRC. Furthermore, a cooperative prognostic effect between CD20(+) B lymphocytes and CD8(+) T lymphocytes is suggested.

  • 164.
    Edin, Sofia
    et al.
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Wikberg, Maria L.
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Dahlin, Anna M.
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology. Umeå University, Faculty of Medicine, Department of Radiation Sciences.
    Rutegård, Jörgen
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Öberg, Åke
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Oldenborg, Per-Arne
    Umeå University, Faculty of Medicine, Department of Integrative Medical Biology (IMB), Histology and Cell Biology.
    Palmqvist, Richard
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    The Distribution of Macrophages with a M1 or M2 Phenotype in Relation to Prognosis and the Molecular Characteristics of Colorectal Cancer2012In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 7, no 10, p. e47045-Article in journal (Refereed)
    Abstract [en]

    High macrophage infiltration has been correlated to improved survival in colorectal cancer (CRC). Tumor associated macrophages (TAMs) play complex roles in tumorigenesis since they are believed to hold both tumor preventing (M1 macrophages) and tumor promoting (M2 macrophages) activities. Here we have applied an immunohistochemical approach to determine the degree of infiltrating macrophages with a M1 or M2 phenotype in clinical specimens of CRC in relation to prognosis, both in CRC in general but also in subgroups of CRC defined by microsatellite instability (MSI) screening status and the CpG island methylator phenotype (CIMP). A total of 485 consecutive CRC specimens were stained for nitric oxide synthase 2 (NOS2) (also denoted iNOS) as a marker for the M1 macrophage phenotype and the scavenger receptor CD163 as a marker for the M2 macrophage phenotype. The average infiltration of NOS2 and CD163 expressing macrophages along the invasive tumor front was semi-quantitatively evaluated using a four-graded scale. Two subtypes of macrophages, displaying M1 (NOS2(+)) or M2 (CD163(+)) phenotypes, were recognized. We observed a significant correlation between the amount of NOS2(+) and CD163(+) cells (P<0.0001). A strong inverse correlation to tumor stage was found for both NOS2 (P<0.0001) and CD163 (P<0.0001) infiltration. Furthermore, patients harbouring tumors highly infiltrated by NOS2+ cells had a significantly better prognosis than those infiltrated by few NOS2+ cells, and this was found to be independent of MSI screening status and CIMP status. No significant difference was found on cancer-specific survival in groups of CRC with different NOS2/CD163 ratios. In conclusion, an increased infiltration of macrophages with a M1 phenotype at the tumor front is accompanied by a concomitant increase in macrophages with a M2 phenotype, and in a stage dependent manner correlated to a better prognosis in patients with CRC.

  • 165.
    Edin, Sofia
    et al.
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Wikberg, Maria L
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Rutegård, Jörgen
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Oldenborg, Per-Arne
    Umeå University, Faculty of Medicine, Department of Integrative Medical Biology (IMB), Histology and Cell Biology.
    Palmqvist, Richard
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Phenotypic skewing of macrophages in vitro by secreted factors from colorectal cancer cells2013In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 8, no 9, p. e74982-Article in journal (Refereed)
    Abstract [en]

    Macrophages are cells with many important functions in both innate and adaptive immune responses and have been shown to play a complex role in tumor progression since they harbour both tumor preventing (M1 macrophages) and tumor promoting (M2 macrophages) activities. In many human cancers, infiltrating macrophages have been associated with a poor patient prognosis, and therefore suggested to be mainly of an M2 phenotype. However, we and others have previously shown that increased macrophage density in colorectal cancer (CRC) instead is correlated with an improved prognosis. It is an intriguing question if the different roles played by macrophages in various cancers could be explained by variations in the balance between M1 and M2 macrophage attributes, driven by tumor- or organ-specific factors in the tumor microenvironment of individual cancers. Here, we utilized an in vitro cell culture system of macrophage differentiation to compare differences and similarities in the phenotype (morphology, antigen-presentation, migration, endocytosis, and expression of cytokine and chemokine genes) between M1/M2 and tumor activated macrophages (TAMs), that could explain the positive role of macrophages in CRC. We found that secreted factors from CRC cells induced TAMs of a "mixed" M1/M2 phenotype, which in turn could contribute to a "good inflammatory response". This suggests that re-education of macrophages might allow for important therapeutic advances in the treatment of human cancer.

  • 166.
    Edling, Axel
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Port Site Hernias after Laparoscopic Sleeve Gastrectomy2016Independent thesis Basic level (professional degree), 20 credits / 30 HE creditsStudent thesis
  • 167.
    Edvall Malm, Disa
    et al.
    Umeå University, Faculty of Social Sciences, Department of Social Work. AB Samverkat.
    Bodén, Ida
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery. Ivida AB.
    FATI: Utvärdering 2004 - 20142015Report (Other academic)
    Abstract [sv]

    Sundsvalls kommun har årligen sedan 2009 avsatt förvaltningsgemensamma medel till FATI, Förebyggande Arbete och Tidiga Insatser. Medlen syftar till att skapa trygga och goda uppväxtförhållanden för barn och unga. Dessutom också att förstärka och skapa samverkan inom och mellan förvaltningar och mellan kommun och externa aktörer. Medlen kan sökas av kommunala verksamheter, föreningar och frivilliga organisationer.

    Utvärderingen av FATI pågick från september 2014 till och med januari 2015. Syftet med utvärderingen var att analysera och värdera ifall de sociala investeringar, som gjorts inom ramen för FATI, uppnått målsättningarna med goda och trygga uppväxtförhållanden samt stimulerat till samverkan. Utvärderingen har ett vetenskapligt upplägg och kan ligga till grund för kommunens fortsatta arbete med sociala investeringar.

    Både effekter av och processer inom FATI har studerats. För utvärderingens kvantitativa del har befintlig data som skulle kunna mäta uppväxtförhållanden kartlagts och beräkningar gjorts. För utvärderingens kvalitativa del samlades materialet in genom granskning av kommunens dokument samt intervjuer med politiker, tjänstemän och projektledare. Programteori har använts för att lyfta fram underliggande antaganden om hur FATI är tänkt att fungera och hur det fungerar.

    Några centrala resultat av utvärderingen är att:

    • FATI-arbetet i Sundsvall inneburit en långsiktig politisk satsning som gett omfattande samverkan i bostadsområdena mellan ett starkt föreningsliv, civilsamhället och lokala kommunala aktörer.

    • Sundsvalls kommun har sedan 2009 satsat 27 miljoner i drygt 80 olika projekt.

    • FATI har genom åren har haft stor betydelse för de barn och unga som berörts av medlen. De som deltagit har fått: bättre självkänsla, provat olika idrotter, spelat musik, teater och målat, samt kunnat delta i aktiviteter efter skolan oberoende av föräldrarnas betalningsförmåga. De har fått möjlighet att närma sig olika föreningar och många har blivit förenings aktiva.  

    • Som resursutjämningsystem har FATI fungerat på generell nivå mellan bostadsområdena, områden med lägst socioekonomiska förutsättningar har fått flest projekt. Däremot behöver FATI kompletteras för att fungera resursutjämnande på individnivå. 

    • Styrning/organisering, resursfördelning, metodutveckling och utvärdering/uppföljning är komponenter som är förutsättningar för att kommuner ska lyckas med sociala investeringar. Sundsvalls kommun har genom FATI arbetet utvecklat goda rutiner för dessa komponenter.

  • 168. Egenvall, Monika
    et al.
    Mörner, Malin
    Martling, Anna
    Gunnarsson, Ulf
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Prediction of outcome after curative surgery for colorectal cancer: preoperative haemoglobin, C-reactive protein and albumin2018In: Colorectal Disease, ISSN 1462-8910, E-ISSN 1463-1318, Vol. 20, no 1, p. 26-34Article in journal (Refereed)
    Abstract [en]

    AIM: The aim was to evaluate a scoring system using the values of preoperative haemoglobin, C-reactive protein (CRP) and serum albumin to predict colorectal cancer recurrence and survival.

    METHOD: Data on all curative resections for Stages I-III colorectal cancer performed at a tertiary referral hospital 2007-2010 have been recorded ion the Swedish Colorectal Cancer Registry and were matched to the local databases for laboratory results and blood transfusion. Patients who died within 30 days or during primary hospital admission were excluded. Preoperative haemoglobin, CRP and albumin levels were recorded for 417 patients. A score (0-3) was derived on presence of anaemia (Hb <120 g/l for women and <130 g/l for men), raised CRP (>10 mg/ml) and low albumin (<35g/dl). The risks for recurrence and impaired overall survival were assessed using Cox regression analyses.

    RESULTS: Impaired overall survival was found when one, two or three of the criteria, anaemia, elevated CRP and low albumin, were present prior to surgery (HR 3.61, 1.66-7.85; HR 3.91, 1.75-8.74; HR 4.85, 2.15-10.93, respectively). The risk for recurrence, however, was not related to the presence of these criteria.

    CONCLUSION: Overall survival after curative surgery for Stages I-III colorectal cancer is impaired when anaemia, elevated CRP or low albumin exist prior to surgery. This article is protected by copyright. All rights reserved.

  • 169. Egenvall, Monika
    et al.
    Mörner, Malin
    Påhlman, Lars
    Gunnarsson, Ulf
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery. Karolinska Univ Hosp, Dept Surg Gastroenterol, K53,Huddinge 141, S-14186 Stockholm, Sweden.
    Degree of blood loss during surgery for rectal cancer: a population-based epidemiologic study of surgical complications and survival2014In: Colorectal Disease, ISSN 1462-8910, E-ISSN 1463-1318, Vol. 16, no 9, p. 696-702Article in journal (Refereed)
    Abstract [en]

    AIM: the hypothesis tested in this study was that major blood loss during surgery for rectal cancer increases the risk for surgical complications and for small bowel obstruction (SBO) due to adhesions or tumour recurrence and reduces overall survival.

    METHOD: data were retrieved from the Uppsala/Örebro Regional Rectal Cancer Registry for all patients undergoing radical resection for rectal cancer 1997-2003 (n=1,843) and matched against the Swedish National Patient Registry regarding surgery and admission for SBO. These patient records were scrutinized to determine the etiology of surgery for SBO. The registry was scrutinized for blood loss and other surgical complications associated with surgery. Uni- and multivariate Cox analysis and logistic regression were used.

    RESULTS: 94 (5.1%) patients underwent surgery for SBO >30 days after the index operation. Of these 82 were caused by adhesions and 12 by tumour recurrence. The volume of blood lost did not influence the risk of surgery for SBO due to adhesions, but blood loss above the median (>800 ml) increased the risk for surgery for SBO caused by tumour recurrence (HR 10.52; 95% CI 1.36-81.51). Increased blood loss increased the risk of surgical complications (OR 2,09; 95% CI 1.60-2.75 with blood loss of 450 ml or more) but did not reduce overall survival. Irradiation before surgery increased blood loss, complications and admission for SBO.

    CONCLUSION: major blood loss during surgery for rectal cancer increases the risk of later surgery for SBO caused by tumour recurrence and surgical complications, but overall survival is not affected. This article is protected by copyright. All rights reserved.

  • 170.
    Egenvall, Monika
    et al.
    CLINTEC and Department of Surgical Gastroenterology, Karolinska University Hospital.
    Schubert Samuelsson, Katja
    CLINTEC and Department of Neurobiology, Care Sciences and Society, Karolinska Institutet and Department of Geriatrics, Karolinska University Hospital.
    Klarin, Inga
    Department of Neurobiology, Care Sciences and Society, Karolinska Institutet and Department of Geriatrics, Karolinska University Hospital.
    Lökk, Johan
    Department of Neurobiology, Care Sciences and Society, Karolinska Institutet and Department of Geriatrics, Karolinska University Hospital.
    Sjövall, Annika
    Department of Surgical Gastroenterology, Karolinska University Hospital and Department of Molecular Medicine and Surgery, Karolinska Institutet.
    Martling, Anna
    Department of Surgical Gastroenterology, Karolinska University Hospital and Department of Molecular Medicine and Surgery, Karolinska Institutet.
    Gunnarsson, Ulf
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery. CLINTEC and Department of Surgical Gastroenterology, Karolinska University Hospital.
    Management of colon cancer in the elderly: a population-based study2014In: Colorectal Disease, ISSN 1462-8910, E-ISSN 1463-1318, Vol. 16, no 6, p. 433-441Article in journal (Refereed)
    Abstract [en]

    AIM: although the median age of patients diagnosed with colon cancer is above 70 years, little is known about specific characteristics and management in the elderly. The aim of the study was to define characteristics of colon cancer in elderly patients and compare the quality of preoperative assessment and surgery with that of younger patients undergoing surgery for colon cancer.

    METHOD: data on 15.255 patients diagnosed with colon cancer between 2007 and 2010 were retrieved from the Swedish National Colon Cancer Register. Of these, 12.959 underwent surgical resection, 6.141 were 75 years or older while 6.818 were younger. The χ(2) test, Mann-Whitney U test and uni- and multivariable logistic regression analyses were used for comparison between groups.

    RESULTS: older patients were more likely to be female (54% older/48% younger) and have right-sided cancer (60% older/49% younger). Among patients who underwent resection, the elderly were less often evaluated regarding tumour stage prior to surgery (59% older/65% younger) and they were less often evaluated at a multidisciplinary team conference (26% older/34% younger). Elderly patients more frequently underwent emergency surgery (22% older/19% younger) despite having an earlier cancer stage. When adjusted for stage, fewer elderly patients underwent a radical curative procedure (OR for non-curative resection 1.19; 95% CI 1.06-1.33)

    CONCLUSION: routine management of patients with colon cancer is age-dependent. Patients 75 years and older are less often completely staged and less often evaluated at a multi-disciplinary team conference prior to surgery. Adjusted for stage, fewer elderly patients undergo curative resection.

  • 171.
    Ekdahl, Tove
    et al.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Löfgren, Jenny
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Wladis, Andreas
    Nordin, Pär
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Myggnät vid ljumskbråckskirurgi ett alternativ i låginkomstländer: interimsanalys av kontrollerad randomiserad studie visar goda resultat2014In: Läkartidningen, ISSN 0023-7205, E-ISSN 1652-7518, Vol. 111, no 34-35, p. 1358-1361Article in journal (Refereed)
    Abstract [sv]

    Behovet av förbättrade kirurgiska insatser i låginkomstländer är stort. 

    Ljumskbråck är en vanlig kirurgisk åkomma och opereras i höginkomstländer nästan uteslutande med nätteknik. I låginkomstmiljöer är kommersiella nät för dyra. 

    En randomiserad studie i Uganda undersöker om myggnät med liknande material som de kommersiella näten är jämförbara med kommersiella nät vid ljumskbråckskirurgi. 

    En interimsstudie har utförts för att tidigt påvisa om det föreligger allvarliga komplikationer i någon av behandlingsarmarna. Patienterna följdes upp 14 dagar och 1 år postoperativt.

    Interimsanalysen påvisade inga skillnader mellan behandlingsarmarna eller allvarliga komplikationer som skulle föranleda avbrott av studien.

  • 172. Ekelund, Ulf
    et al.
    Ward, Heather A.
    Norat, Teresa
    Luan, Jian'an
    May, Anne M.
    Weiderpass, Elisabete
    Sharp, Stephen J.
    Overvad, Kim
    Ostergaard, Jane Nautrup
    TjOnneland, Anne
    Johnsen, Nina Fons
    Mesrine, Sylvie
    Foamier, Agnes
    Fagherazzi, Guy
    Trichopoulou, Antonia
    Lagiou, Pagona
    Trichopoulos, Dimitrios
    Li, Kuanrong
    Kaaks, Rudolf
    Ferrari, Pietro
    Licaj, Idlir
    Jenab, Mazda
    Bergmann, Manuela
    Boeing, Heiner
    Palli, Domenico
    Sieri, Sabina
    Panico, Salvatore
    Tumino, Rosario
    Vineis, Paolo
    Peeters, Petra H.
    Monnikhof, Evelyn
    Bueno-de-Mesquita, H. Bas
    Ramon Quiros, J.
    Agudo, Antonio
    Sanchez, Maria-Jose
    Maria Huerta, Jose
    Ardanaz, Eva
    Arriola, Larraitz
    Hedblad, Bo
    Wirfalt, Elisabet
    Sund, Malin
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Johansson, Mattias
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine. International Agency for Research on Cancer (IARC), Lyon, France.
    Key, Timothy J.
    Travis, Ruth C.
    Khaw, Kay-Tee
    Brage, Soren
    Wareham, Nicholas J.
    Riboli, Elio
    Physical activity and all-cause mortality across levels of overall and abdominal adiposity in European men and women: the European Prospective Investigation into Cancer and Nutrition Study (EPIC)2015In: American Journal of Clinical Nutrition, ISSN 0002-9165, E-ISSN 1938-3207, Vol. 101, no 3, p. 613-621Article in journal (Refereed)
    Abstract [en]

    Background: The higher risk of death resulting from excess adiposity may be attenuated by physical activity (PA). However, the theoretical number of deaths reduced by eliminating physical inactivity compared with overall and abdominal obesity remains unclear.

    Objective: We examined whether overall and abdominal adiposity modified the association between PA and all-cause mortality and estimated the population attributable fraction (PAF) and the years of life gained for these exposures.

    Design: This was a cohort study in 334,161 European men and women. The mean follow-up time was 12.4 y, corresponding to 4,154,915 person-years. Height, weight, and waist circumference (WC) were measured in the clinic. PA was assessed with a validated self-report instrument. The combined associations between PA, BMI, and WC with mortality were examined with Cox proportional hazards models, stratified by center and age group, and adjusted for sex, education, smoking, and alcohol intake. Center-specific PAF associated with inactivity, body mass index (BMI; in kg/m(2)) (>30), and WC (>= 102 cm for men, >= 88 cm for women) were calculated and combined in random-effects meta-analysis. Life-tables analyses were used to estimate gains in life expectancy for the exposures.

    Results: Significant interactions (PA x BMI and PA x WC) were observed, so HRs were estimated within BMI and WC strata. The hazards of all-cause mortality were reduced by 16-30% in moderately inactive individuals compared with those categorized as inactive in different strata of BMI and WC. Avoiding all inactivity would theoretically reduce all-cause mortality by 7.35% (95% CI: 5.88%, 8.83%). Corresponding estimates for avoiding obesity (BMI >30) were 3.66% (95% CI: 2.30%, 5.01%). The estimates for avoiding high WC were similar to those for physical inactivity.

    Conclusion: The greatest reductions in mortality risk were observed between the 2 lowest activity groups across levels of general and abdominal adiposity, which suggests that efforts to encourage even small increases in activity in inactive individuals may be beneficial to public health.

  • 173.
    Eklund, Fredrik
    et al.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Sports Medicine.
    Nordström, Anna
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Sports Medicine.
    Björnstig, Ulf
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Nordström, Peter
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Geriatric Medicine.
    Bone mass, size and previous fractures as predictors of prospective fractures in an osteoporotic referral population.2009In: Bone, ISSN 8756-3282, E-ISSN 1873-2763, Vol. 45, no 4, p. 808-813Article in journal (Refereed)
    Abstract [en]

    The influence of bone mass, bone size and previous low energy fractures upon prospective fractures has not been investigated in a referral osteoporotic population. We investigated the association between bone mass, bone size, previous fractures, body constitution, and prospective validated fractures in 5701 women and 1376 men, aged 30 years and older. Bone mass measurements of the femoral neck were collected at a single study center in Sweden. Most of the subjects were measured on suspicion of osteoporosis. Data on validated low energy retrospective and prospective fractures in the cohort were collected from the corresponding health care district. Bone mineral density (BMD, g/cm(2)) and estimated volumetric BMD (vBMD, g/cm(3)) were shown to be good independent predictors for fracture in both women and men (Hazard ratio per standard deviation decrease (HR)=1.27-1.52, p<0.05). Bone size did not predict prospective fractures in either sex (HR=0.91-0.99, p>0.05), and bone size completely explained the higher BMD in men than in women. In women, retrospective low energy fractures (HR=1.78, p<0.001) and height (HR=1.02, p=0.006) were additional independent predictors of osteoporotic fractures after adjusting for age and BMD. In conclusion, we show that in a large osteoporotic referral population, age, BMD and previous fractures are independent predictors of prospective low energy fractures. These results add additional strength to the recent change in focus towards a multivariate analysis when assessing the future risk of fracture.

  • 174.
    Eklöf, Vincy
    et al.
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Lundgren, David
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
    Karling, Pontus
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
    Wikberg, Maria L.
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Edin, Sofia
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Löfgren Burström, Anna
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Rutegård, Jörgen
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Palmqvist, Richard
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    The combined diagnostic value of faecal haemoglobin and calprotectin in colorectal cancerManuscript (preprint) (Other academic)
  • 175.
    Eklöf, Vincy
    et al.
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Löfgren-Burström, Anna
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Zingmark, Carl
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Edin, Sofia
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Larsson, Pär
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Karling, Pontus
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
    Alexeyev, Oleg
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Rutegård, Jörgen
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Wikberg, Maria L
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Palmqvist, Richard
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Cancer-associated fecal microbial markers in colorectal cancer detection2017In: International Journal of Cancer, ISSN 0020-7136, E-ISSN 1097-0215, Vol. 141, no 12, p. 2528-2536Article in journal (Refereed)
    Abstract [en]

    Colorectal cancer (CRC) is the second most common cause of cancer death in the western world. An effective screening program leading to early detection of disease would severely reduce the mortality of CRC. Alterations in the gut microbiota have been linked to CRC, but the potential of microbial markers for use in CRC screening has been largely unstudied. We used a nested case-control study of 238 study subjects to explore the use of microbial markers for clbA+ bacteria harboring the pks pathogenicity island, afa-C+ diffusely adherent Escherichia coli harboring the afa-1 operon, and Fusobacterium nucleatum in stool as potential screening markers for CRC. We found that individual markers for clbA+ bacteria and F. nucleatum were more abundant in stool of patients with CRC, and could predict cancer with a relatively high specificity (81.5% and 76.9%, respectively) and with a sensitivity of 56.4% and 69.2%, respectively. In a combined test of clbA+ bacteria and F. nucleatum, CRC was detected with a specificity of 63.1% and a sensitivity of 84.6%. Our findings support a potential value of microbial factors in stool as putative noninvasive biomarkers for CRC detection. We propose that microbial markers may represent an important future screening strategy for CRC, selecting patients with a "high-risk" microbial pattern to other further diagnostic procedures such as colonoscopy.

  • 176.
    Eklöf, Vincy
    et al.
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Wikberg, Maria L.
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Edin, Sofia
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Dahlin, Anna M.
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Jonsson, Björn-Anders
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    Öberg, Å.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences.
    Rutegård, Jörgen
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Palmqvist, Richard
    Umeå University, Faculty of Medicine, Department of Medical Biosciences, Pathology.
    The prognostic role of KRAS, BRAF, PIK3CA and PTEN in colorectal cancer2013In: British Journal of Cancer, ISSN 0007-0920, E-ISSN 1532-1827, Vol. 108, no 10, p. 2153-2163Article in journal (Refereed)
    Abstract [en]

    Background Mutations in KRAS, BRAF, PIK3CA and PTEN expression have been in focus to predict the effect of epidermal growth factor receptor-blocking therapy in colorectal cancer (CRC). Here, information on these four aberrations was collected and combined to a Quadruple index and used to evaluate the prognostic role of these factors in CRC. Patients We analysed the mutation status in KRAS, BRAF and PIK3CA and PTEN expression in two separate CRC cohorts, Northern Sweden Health Disease Study (NSHDS; n = 197) and Colorectal Cancer in Umea Study (CRUMS; n = 414). A Quadruple index was created, where Quadruple index positivity specifies cases with any aberration in KRAS, BRAF, PIK3CA or PTEN expression. Results Quadruple index positive tumours had a worse prognosis, significant in the NSHDS but not in the CRUMS cohort (NSHDS; P = 0.003 and CRUMS; P = 0.230) in univariate analyses but significance was lost in multivariate analyses. When analysing each gene separately, only BRAF was of prognostic significance in the NSHDS cohort (multivariate HR 2.00, 95% CI: 1.16-3.43) and KRAS was of prognostic significance in the CRUMS cohort (multivariate HR 1.48, 95% CI: 1.02-2.16). Aberrations in PIK3CA and PTEN did not add significant prognostic information. Conclusions Our results suggest that establishment of molecular subgroups based on KRAS and BRAF mutation status is important and should be considered in future prognostic studies in CRC.

  • 177. Ekström, Magnus
    et al.
    Franklin, Karl A
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Ström, Kerstin E
    Increased relative mortality in women with severe oxygen-dependent COPD2010In: Chest, ISSN 0012-3692, E-ISSN 1931-3543, Vol. 137, no 1, p. 31-36Article in journal (Refereed)
    Abstract [en]

    Background: Although the incidence of COPD is rapidly increasing in women, knowledge is lacking concerning differences in relative mortality and causes of death in women compared with men. We aimed to analyze differences in relative mortality and cause-specific mortality between men and women on long-term oxygen therapy (LTOT) for COPD.

    Methods: Patients starting LTOT for COPD in Sweden between January 1, 1987, and December 31, 2004, were prospectively followed until termination of LTOT or through December 31, 2004. Causes of death according to the Swedish National Causes of Death Register were compared between the study group and the general Swedish population matched for age and sex, with the relative mortality expressed as standardized mortality rates (SMRs).

    Results: A total of 7,646 patients, 4,033 women and 3,613 men, were followed for a median of 1.7 years (range 0-18.0). No patient was lost to follow-up. A total of 5,448 patients, 2,745 women and 2,703 men, died. Women had a higher SMR than men: overall mortality, SMR 12.0 (95%, 11.6-12.5) vs 7.4 (95% CI, 7.1-7.6); for respiratory disease, SMR 127.9 (95% CI, 122.4-133.6) vs 66.0 (95% CI, 63.1-69.0); cancer, SMR 3.5 (95% CI, 3.0-3.9) vs 2.2 (95% CI, 1.9-2.5); and cardiovascular disease, SMR 3.7 (95% CI, 3.3-4.1) vs 2.5 (95% CI, 2.3-2.7), respectively.

    Conclusions: In severe COPD treated with long-term oxygen, women have higher relative mortality than men both overall and for respiratory disease, as well as for cardiovascular disease and cancer.

  • 178.
    Elmroth, Charlotta
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Recidivfrekvens och patienttillfredställelse efter olika behandlingsalternativ av Dupuytrens kontraktur2015Independent thesis Basic level (professional degree), 20 credits / 30 HE creditsStudent thesis
  • 179.
    El-Salhy, M
    et al.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
    Danielsson, Åke
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
    Axelsson, H
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Qian, Bi-Feng
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
    Neuroendocrine peptide levels in the gastrointestinal tract of mice after unilateral cervical vagotomy2000In: Regulatory Peptides, ISSN 0167-0115, E-ISSN 1873-1686, Vol. 88, no 1-3, p. 15-20Article in journal (Refereed)
    Abstract [en]

    The effects of left and right unilateral cervical vagotomy on the content of several neuroendocrine peptides were studied in different parts of the murine gastrointestinal tract, known to receive vagal innervation. The neuroendocrine peptides investigated were secretin, gastric inhibitory peptide (GIP), gastrin, motilin, peptide YY (PYY), somatostatin, substance P, VIP, neurotensin, neuropeptide Y (NPY), and galanin. The neuroendocrine peptide concentration was affected after both left and right vagotomy, and that the changes in the concentrations of the neuroendocrine peptide levels occurred in all the gastrointestinal segments investigated, namely antrum, small and large intestine. However, these changes varied, depending on which side was vagotomized and the interval after vagotomy. It is concluded that the vagus nerve had an important impact on the neuroendocrine system in the murine gut. It is suggested, furthermore that the contradictory results obtained earlier on the effect of vagotomy on the gastrointestinal peptides may depend on differences in the vagotomy methods used and on differences in observation time after vagotomy.

  • 180.
    Emanuelsson, Peter
    et al.
    Department for Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden and Department of Plastic and Reconstructive Surgery, Karolinska University Hospital, 117 76, Stockholm, Sweden .
    Dahlstrand, Ursula
    Division of Surgery, Department of Clinical Science, Intervention and Technology, CLINTEC, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.
    Strömsten, U.
    Department of Clinical Sciences Danderyds Hospital, Karolinska Institutet, Stockholm, Sweden .
    Gunnarsson, Ulf
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery. Division of Surgery, Department of Clinical Science, Intervention and Technology, CLINTEC, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden .
    Strigård, Karin
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery. Division of Surgery, Department of Clinical Science, Intervention and Technology, CLINTEC, Karolinska Institutet, Karolinska University Hospital, Stockholm.
    Stark, Birgit
    Department for Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden .
    Analysis of the abdominal musculo-aponeurotic anatomy in rectus diastasis: comparison of CT scanning and preoperative clinical assessment with direct measurement intraoperatively2014In: Hernia, ISSN 1265-4906, E-ISSN 1248-9204, Vol. 18, no 4, p. 465-471Article in journal (Refereed)
    Abstract [en]

    PURPOSE: To evaluate and compare the consistency of agreement of two methods for measuring abdominal rectus diastasis (ARD), preoperative computed tomography (CT) scanning and preoperative clinical assessment were compared with direct measurement intraoperatively.

    METHODS: Fifty-five consecutive patients were retrieved from an ongoing prospective randomised trial comparing two operative techniques for the repair of ARD. All patients underwent a preoperative clinical assessment and CT scan, and the results were compared with intraoperative measurement of the ARD width. Agreement between methods was described with Bland-Altman plots (BA plots) and calculated using Lin's Concordance Correlation Coefficient (CCC).

    RESULTS: The median width of the diastasis was 4.0 cm in the upper midline and 3.0 cm in the lower midline for the intraoperative measurement. BA plots showed that measurements on CT and intraoperatively are not in agreement in the lower midline, whereas the agreement was stronger between the clinical and the intraoperative method. The CCC was higher for clinical vs. intraoperative measurement (0.479) than for CT vs. intraoperative measurement (-0.002) in the lower midline, although the agreement was over all low. CT scanning underestimated the width of the ARD when compared to 87 % of preoperative clinical assessments, and 83 % of intraoperative measurements. Preoperative clinical assessment overestimated ARD in 35 % when compared with intraoperative measurements.

    CONCLUSION: Clinical assessment prior to surgery provides more accurate information than CT scanning in the assessment of ARD width. CT scanning underestimates ARD width when compared with intraoperative measurement.

  • 181. Emanuelsson, Peter
    et al.
    Gunnarsson, Ulf
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Dahlstrand, Ursula
    Strigård, Karin
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Stark, Birgit
    Operative correction of abdominal rectus diastasis (ARD) reduces pain and improves abdominal wall muscle strength: a randomized, prospective trial comparing retromuscular mesh repair to double-row, self-retaining sutures2016In: Surgery, ISSN 0039-6060, E-ISSN 1532-7361, Vol. 160, no 5, p. 1367-1375Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: The primary aim of this prospective, randomized, clinical, 2-armed trial was to evaluate the risk for recurrence using 2 different operative techniques for repair of abdominal rectus diastasis. Secondary aims were comparison of pain, abdominal muscle strength, and quality of life and to compare those outcomes to a control group receiving physical training only.

    METHODS: Eighty-six patients were enrolled. Twenty-nine patients were allocated to retromuscular polypropylene mesh and 27 to double-row plication with Quill technology. Thirty-two patients participated in a 3-month training program. Diastasis was evaluated with computed tomography scan and clinically. Pain was assessed using the ventral hernia pain questionnaire, a quality-of-life survey, SF-36, and abdominal muscle strength using the Biodex System-4.

    RESULTS: One early recurrence occurred in the Quill group, 2 encapsulated seromas in the mesh group, and 3 in the suture group. Significant improvements in perceived pain, the ventral hernia pain questionnaire, and quality of life appeared at the 1-year follow-up with no difference between the 2 operative groups. Significant muscular improvement was obtained in all groups (Biodex System-4). Patient perceived gain in muscle strength assessed with a visual analog scale improved similarly in both operative groups. This improvement was significantly greater than that seen in the training group. Patients in the training group still experienced bodily pain at follow-up.

    CONCLUSION: There was no difference between the Quill technique and retromuscular mesh in the effect on abdominal wall stability, with a similar complication rate 1 year after operation. An operation improves functional ability and quality of life. Training strengthens the abdominal muscles, but patients still experience discomfort and pain.

  • 182.
    Emanuelsson, Peter
    et al.
    Department for Surgery, CLINTEC, Karolinska Institutet, Stockholm, Sweden.
    Gunnarsson, Ulf
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Strigård, Karin
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Stark, Birgit
    Department for Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.
    Early complications, pain, and quality of life after reconstructive surgery for abdominal rectus muscle diastasis: a 3-month follow-up2014In: Journal of Plastic, Reconstructive & Aesthetic Surgery, ISSN 1748-6815, E-ISSN 1532-1959, Vol. 67, no 8, p. 1082-1088Article in journal (Refereed)
    Abstract [en]

    AIM: The aim of this study was to evaluate early complications following retromuscular mesh repair with those after dual layer suture of the anterior rectus sheath in a randomised controlled clinical trial for abdominal rectus muscle diastasis (ARD).

    METHODS: Patients with an ARD wider than 3 cm and clinical symptoms related to the ARD were included in a prospective randomised study. They were assigned to either retromuscular inset of a lightweight polypropylene mesh or to dual closure of the anterior rectus fascia using Quill self-locking technology. All patients completed a validated questionnaire for pain assessment (Ventral Hernia Pain Questionnaire, VHPQ) and for quality of life (SF36) prior to and 3 months after surgery.

    RESULTS: The most frequently seen adverse event was minor wound infection. Of the patients, 14/57 had a superficial wound infection; five related to Quill and nine to mesh repair. No deep wound infections were reported. Patient rating for subjective muscular improvement postoperatively was better in the mesh technique group with a mean of 6.9 (range 0-10) compared to a mean of 4.8 (range 0-10) in the Quill group (p=0.01). The pre- and post-operative SF36 scores improved in both groups.

    CONCLUSIONS: There was no significant difference between the two surgical techniques in terms of early complications and perceived pain at the 3-month follow-up. Both techniques may be considered equally reliable for ARD repair in terms of adverse outcomes during the early postoperative phase, even though patients operated with a mesh experienced better improvement in muscular strength.

  • 183. Emaus, Marleen J.
    et al.
    van Gils, Carla H.
    Bakker, Marije F.
    Bisschop, Charlotte N. Steins
    Monninkhof, Evelyn M.
    Bueno-de-Mesquita, H. B(as)
    Travier, Noemie
    Berentzen, Tina Landsvig
    Overvad, Kim
    Tjonneland, Anne
    Romieu, Isabelle
    Rinaldi, Sabina
    Chajes, Veronique
    Gunter, Marc J.
    Clavel-Chapelon, Francoise
    Fagherazzi, Guy
    Mesrine, Sylvie
    Chang-Claude, Jenny
    Kaaks, Rudolf
    Boeing, Heiner
    Aleksandrova, Krasimira
    Trichopoulou, Antonia
    Naska, Androniki
    Orfanos, Philippos
    Palli, Domenico
    Agnoli, Claudia
    Tumino, Rosario
    Vineis, Paolo
    Mattiello, Amalia
    Braaten, Tonje
    Borch, Kristin Benjaminsen
    Lund, Eiliv
    Menendez, Virginia
    Sanchez, Maria-Jose
    Navarro, Carmen
    Barricarte, Aurelio
    Amiano, Pilar
    Sund, Malin
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Andersson, Anne
    Umeå University, Faculty of Medicine, Department of Radiation Sciences, Oncology.
    Borgquist, Signe
    Olsson, Asa
    Khaw, Kay-Tee
    Wareham, Nick
    Travis, Ruth C.
    Riboli, Elio
    Peeters, Petra H. M.
    May, Anne M.
    Weight change in middle adulthood and breast cancer risk in the EPIC-PANACEA study2014In: International Journal of Cancer, ISSN 0020-7136, E-ISSN 1097-0215, Vol. 135, no 12, p. 2887-2899Article in journal (Refereed)
    Abstract [en]

    Long-term weight gain (i.e., weight gain since age 20) has been related to higher risk of postmenopausal breast cancer, but a lower risk of premenopausal breast cancer. The effect of weight change in middle adulthood is unclear. We investigated the association between weight change in middle adulthood (i.e., women aged 40-50 years) and the risk of breast cancer before and after the age of 50. We included female participants of the European Prospective Investigation into Cancer and Nutrition cohort, with information on anthropometric measures at recruitment and after a median follow-up of 4.3 years. Annual weight change was categorized using quintiles taking quintile 2 and 3 as the reference category (-0.44 to 0.36 kg/year). Multivariable Cox proportional hazards regression analysis was used to examine the association. 205,723 women were included and 4,663 incident breast cancer cases were diagnosed during a median follow-up of 7.5 years (from second weight assessment onward). High weight gain (Q5: 0.83-4.98 kg/year) was related to a slightly, but significantly higher breast cancer risk (HRQ5_versus_Q2/3: 1.09, 95% CI: 1.01-1.18). The association was more pronounced for breast cancer diagnosed before or at age 50 (HRQ5_versus_Q2/3: 1.37, 95% CI: 1.02-1.85). Weight loss was not associated with breast cancer risk. There was no evidence for heterogeneity by hormone receptor status. In conclusion, high weight gain in middle adulthood increases the risk of breast cancer. The association seems to be more pronounced for breast cancer diagnosed before or at age 50. Our results illustrate the importance of avoiding weight gain in middle adulthood.

  • 184.
    Emdin, Stefan
    et al.
    Umeå University, Faculty of Medicine, Surgical and Perioperative Sciences, Surgery.
    Granstrand, Bengt
    Umeå University, Faculty of Medicine, Surgical and Perioperative Sciences, Surgery.
    Ringberg, Anita
    Sandelin, Kerstin
    Arnesson, Lars-Gunnar
    Nordgren, Hans
    Anderson, Harald
    Garmo, Hans
    Holmberg, Lars
    Wallgren, Arne
    SweDCIS: Radiotherapy after sector resection for ductal carcinoma in situ of the breast. Results of a randomised trial in a population offered mammography screening.2006In: Acta Oncol, ISSN 0284-186X, Vol. 45, no 5, p. 536-43Article in journal (Refereed)
  • 185. Emilsson, O. I.
    et al.
    Bengtsson, Anna
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Franklin, Karl A.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery. Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Toren, K.
    Benediktsdottir, B.
    Farkhooy, A.
    Weyler, J.
    Dom, S.
    De Backer, W.
    Gislason, T.
    Janson, C.
    Onset of symptoms of obstructive sleep apnoea and asthma in persistent nocturnal gastroesophageal reflux2012In: Journal of Sleep Research, ISSN 0962-1105, E-ISSN 1365-2869, Vol. 21, no S1, p. 162-162Article in journal (Other academic)
  • 186.
    Emilsson, Ossur I.
    et al.
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Bengtsson, Anna
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Franklin, Karl A.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery. Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Pulmonary Medicine.
    Toren, Kjell
    Benediktsdottir, Bryndis
    Farkhooy, Amir
    Weyler, Joost
    Dom, Sandra
    De Backer, Wilfried
    Gislason, Thorarinn
    Janson, Christer
    Nocturnal gastro-oesophageal reflux, asthma and symptoms of OSA: a longitudinal, general population study2013In: European Respiratory Journal, ISSN 0903-1936, E-ISSN 1399-3003, Vol. 41, no 6, p. 1347-1354Article in journal (Refereed)
    Abstract [en]

    Nocturnal gastro-oesophageal reflux (nGOR) is associated with asthma and obstructive sleep apnoea (OSA). Our aim was to investigate whether nGOR is a risk factor for onset of asthma and onset of respiratory and OSA symptoms in a prospective population-based study. We invited 2640 subjects from Iceland, Sweden and Belgium for two evaluations over a 9-year interval. They participated in structured interviews, answered questionnaires, and underwent spirometries and methacholine challenge testing. nGOR was defined by reported symptoms. Subjects with persistent nGOR (n=123) had an independent increased risk of new asthma at follow-up (OR 2.3, 95% CI 1.1-4.9). Persistent nGOR was independently related to onset of respiratory symptoms (OR 3.0, 95% CI 1.6-5.6). The risk of developing symptoms of OSA was increased in subjects with new and persistent nGOR (OR 2.2, 95% CI 1.3-1.6, and OR 2.0, 95% CI 1.0-3.7, respectively). No significant association was found between nGOR and lung function or bronchial responsiveness. Persistent symptoms of nGOR contribute to the development of asthma and respiratory symptoms. New onset of OSA symptoms is higher among subjects with symptoms of nGOR. These findings provide evidence that nGOR may play a role in the genesis of respiratory symptoms and diseases.

  • 187.
    Enell, Jacob
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Utredning av patienter med biokemiskt klar pHPT - en deskriptiv kohortanalys2016Independent thesis Basic level (professional degree), 20 credits / 30 HE creditsStudent thesis
  • 188.
    Engelbrektsson, Anna
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Circumstances leading to thoracic and lumbar spine fractures in motor vehicle crashes2016Independent thesis Basic level (professional degree), 20 credits / 30 HE creditsStudent thesis
  • 189. Englund, L
    et al.
    Forsberg, Rebecca
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Saveman, Britt-Inger
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery. Umeå University, Faculty of Medicine, Department of Nursing.
    Survivors´ experiences of media coverage after traumatic injury events2012In: International emergency nursing, ISSN 1755-599XArticle in journal (Refereed)
  • 190. Englund, Liselotte
    et al.
    Forsberg, Rebecca
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Saveman, Britt-Inger
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Survivors' experiences of media coverage after traumatic injury events2014In: International Emergency Nursing, ISSN 1755-599X, E-ISSN 1878-013X, Vol. 22, no 1, p. 25-30Article in journal (Refereed)
    Abstract [en]

    Survivors' experiences of media at traumatic events, is still a limited research area. The aim of this study is to explore survivors' experiences of interacting with journalists and media coverage, including their experiences of being portrayed in the media, following two Swedish train crashes. Qualitative interviews were conducted with passengers from two train crashes in Sweden. A qualitative content analysis generated meaning units, subcategories, and categories. Survivors experienced interacting with journalists mainly in three ways: harmful, inconsequential, and helpful. Media content and personal media exposure was experienced in a similar way: uncomfortable, insignificant, and useful. Journalists and media coverage have a large impact on survivors' experiences following a traumatic event. It is important that emergency responders, such as ambulance nurses, are aware of how victims are affected by journalists' presence and the media coverage that follows so that negative outcomes can be reduced and the positive can be enhanced. The present study also shows that media coverage in the long term can become important pieces of information for the victim in order to understand and process the traumatic event. (C) 2013 Elsevier Ltd. All rights reserved.

  • 191.
    Englund, Undis
    et al.
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Geriatric Medicine.
    Nordström, Peter
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Geriatric Medicine.
    Nilsson, Johan
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine.
    Bucht, Gustaf
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Geriatric Medicine.
    Björnstig, Ulf
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Hallmans, Göran
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Nutritional Research.
    Svensson, Olle
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
    Pettersson Kymmer, Ulrika
    Umeå University, Faculty of Medicine, Department of Pharmacology and Clinical Neuroscience, Clinical Pharmacology.
    Physical activity in middle-aged women and hip fracture risk: the UFO study2011In: Osteoporosis International, ISSN 0937-941X, E-ISSN 1433-2965, Vol. 22, no 2, p. 499-505Article in journal (Refereed)
    Abstract [en]

    Summary: In a population-based case-control study, we demonstrate that middle-aged women who were active with walking or in different physical spare time activities were at lower risk of later sustaining a hip fracture compared to more sedentary women.

    Introduction: In middle-aged women participating in the Umeå Fracture and Osteoporosis (UFO) study, we investigated whether physical activity is associated with a subsequent decreased risk of sustaining a hip fracture.

    Methods: The UFO study is a nested case-control study investigating associations between bone markers, lifestyle, and osteoporotic fractures. We identified 81 female hip fracture cases that had reported lifestyle data before they sustained their fracture. Each case was compared with two female controls who were identified from the same cohort and matched for age and week of reporting data, yielding a total cohort of 237 subjects. Mean age at baseline was 57.2 ± 5.0 years, and mean age at fracture was 65.4 ± 6.4 years.

    Results: Conditional logistic regression analysis with adjustments for height, weight, smoking, and menopausal status showed that subjects who were regularly active with walking or had a moderate or high frequency of physical spare time activities (i.e. berry/mushroom picking and snow shovelling) were at reduced risk of sustaining a hip fracture (OR 0.14; 95% CI; 0.05–0.53 for walking and OR 0.19; 95% CI; 0.08–0.46, OR 0.17, 95% CI; 0.05–0.64 for moderate and high frequency of spare time activities, respectively) compared to more sedentary women.

    Conclusion: An active lifestyle in middle age seems to reduce the risk of future hip fracture. Possible mechanisms may include improved muscle strength, coordination, and balance resulting in a decreased risk of falling and perhaps also direct skeletal benefits.

  • 192. Engström, Karin
    et al.
    Engström, Karl Gunnar
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Hazards with electrocautery-induced decomposition of fatty acids: in view of lipid embolization2010In: Scandinavian Cardiovascular Journal, ISSN 1401-7431, E-ISSN 1651-2006, Vol. 44, no 5, p. 307-312Article in journal (Refereed)
    Abstract [en]

    Electrocautery induces a profound fatty-acid fragmentation to form short-chained compounds. The chemical and toxic nature of these compounds remains to be determined, including their clinical implications at blood recycling in cardiac surgery.

  • 193.
    Engström, Karl Gunnar
    et al.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Angrén, John
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Björnstig, Ulf
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Saveman, Britt-Inger
    Umeå University, Faculty of Medicine, Department of Nursing.
    Mass casualty incidents in the underground mining industry: applying the Haddon Matrix on an integrative literature review2018In: Disaster Medicine and Public Health Preparedness, ISSN 1935-7893, E-ISSN 1938-744X, Vol. 12, no 1, p. 138-146Article in journal (Refereed)
    Abstract [en]

    OBJECTIVE: Underground mining is associated with obvious risks that can lead to mass casualty incidents. Information about such incidents was analyzed in an integrated literature review.

    METHODS: A literature search (1980-2015) identified 564 modern-era underground mining reports from countries sharing similar occupational health legislation. These reports were condensed to 31 reports after consideration of quality grading and appropriateness to the aim. The Haddon matrix was used for structure, separating human factors from technical and environmental details, and timing.

    RESULTS: Most of the reports were descriptive regarding injury-creating technical and environmental factors. The influence of rock characteristics was an important pre-event environmental factor. The organic nature of coal adds risks not shared in hard-rock mines. A sequence of mechanisms is commonly described, often initiated by a human factor in interaction with technology and step-wise escalation to involve environmental circumstances. Socioeconomic factors introduce heterogeneity. In the Haddon matrix, emergency medical services are mainly a post-event environmental issue, which were not well described in the available literature. The US Quecreek Coal Mine incident of 2002 stands out as a well-planned rescue mission.

    CONCLUSION: Evaluation of the preparedness to handle underground mining incidents deserves further scientific attention. Preparedness must include the medical aspects of rescue operations.

  • 194.
    Engström, Karl-Gunnar
    Umeå University, Faculty of Medicine, Surgical and Perioperative Sciences, Surgery.
    Contaminating fat in pericardial suction blood: a clinical, thechnical and scientific challange2004In: Perfusion, Vol. 19, no 1, p. 21-31Article in journal (Refereed)
  • 195.
    Engström, Karl-Gunnar
    Umeå University, Faculty of Medicine, Surgical and Perioperative Sciences, Surgery.
    Particle contamination of salvage blood plasma in cardiac surgery2004In: Transfusion Medicine and Hemotherapy, Vol. 31, p. 204-212Article in journal (Refereed)
  • 196.
    Engvall, Christer
    et al.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Clinical Physiology.
    Henein, Michael
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
    Holmgren, Anders
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Suhr, Ole B
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
    Mörner, Stellan
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
    Lindqvist, Per
    Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine.
    Can myocardial strain differentiate hypertrophic from infiltrative etiology of a thickened septum?2011In: Echocardiography, ISSN 0742-2822, E-ISSN 1540-8175, Vol. 28, no 4, p. 408-415Article in journal (Refereed)
    Abstract [en]

    Septal systolic strain measurements showed reduced longitudinal function but its localized nature failed to demonstrate radial disturbances in patients with pathologically thickened septum. No difference was found in systolic strain between patients according to the etiology of septal thickness. This limitation might be either technical or is explained by the maintained radial function in all patient groups.

  • 197. Erba, P
    et al.
    Wettstein, R
    Tolnay, M
    Rieger, UM
    Pierer, G
    Kalbermatten, Daniel F
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery. Department of Plastic, Reconstructive and Aesthetic Surgery, University Hospital of Basel, CH-4031 Basel, Switzerland.
    Neurocutaneous sural flap in paraplegic patients2009In: Journal of Plastic, Reconstructive & Aesthetic Surgery, ISSN 1748-6815, E-ISSN 1532-1959, Vol. 62, no 8, p. 1094-1098Article in journal (Refereed)
    Abstract [en]

    Neurocutaneous flaps have been demonstrated to be a reliable option in different groups of patients but it remains unclear if distally-based sural flaps can be safety used in paraplegic patients because they suffer from significant nervous system alterations. The aim of this proof-of-concept study is to demonstrate that these flaps are reliable in paraplegic patients. We prospectively analysed a group (n = 6) of paraplegic patients who underwent reversed sural flap surgery for ulcers on the lateral malleolus. Measurement of area and photographic documentation techniques have been employed to quantify the defect area. Sural nerve biopsies have been analysed histologically with several different staining techniques to assess the neurovascular network and the myelinisation of the nerve. The patients showed uneventful wound heating, except one case that suffered a partial flap necrosis that heated by secondary intention. Histologic analysis revealed an intact neurovascular network and myelinated nerve fibres. In this small series of paraplegic patients that underwent a distally-based sural flap, the complication rate was low, with only one case of superficial partial necrosis demonstrating the reliability and safety of the flap in this subset of patients. Histologic evaluation of sural. nerve biopsies revealed an almost normal morphology. A possible explanation of this phenomenon is that the dorsal root ganglia remain intact in paraplegic patients and can preserve neural characteristics in the peripheral sensory nerve system.

  • 198. Eriksson, H.
    et al.
    Lyth, J.
    Månsson-Brahme, E.
    Frohm-Nilsson, M.
    Ingvar, C.
    Lindholm, C.
    Naredi, Peter
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Stierner, U.
    Wagenius, G.
    Carstensen, J.
    Hansson, J.
    Low level of education is associated with later stage at diagnosis and reduced survival in cutaneous malignant melanoma: a nationwide population-based study in Sweden2013In: European Journal of Cancer, ISSN 0959-8049, E-ISSN 1879-0852, Vol. 49, no 12, p. 2705-2716Article in journal (Refereed)
    Abstract [en]

    BACKGROUND: A worse outcome has been reported for cutaneous malignant melanoma (CMM) patients with low socioeconomic status. We have investigated the association between level of education, clinical stage at diagnosis (stage at diagnosis) and CMM-specific survival in Sweden.

    METHODS: We identified 27,235 patients from the Swedish Melanoma Register diagnosed with a primary invasive CMM between 1990 and 2007 and linked data to nationwide, population-based, health and census registers with a follow-up to 2010.

    RESULTS: The odds ratio (OR) of higher disease stage at diagnosis was significantly increased in lower education groups (OR stage II versus I=1.6; 95% confidence interval (CI)=1.5-1.7. OR stage III-IV versus I=2.3; 95% CI=1.8-2.9). The risk of dying of CMM, was significantly increased in patients with low (hazard ratio (HR) low versus high=2.02; 95% CI=1.80-2.26; p<0.0001) and intermediate (HR intermediate versus high=1.35; 95% CI=1.20-1.51; p<0.0001) level of education. After adjustment for age, gender, stage at diagnosis and other known prognostic factors, the HRs remained significant for low versus high (HR=1.13; 95% CI=1.01-1.27; p=0.04) but not for intermediate versus high (HR=1.11; 95% CI=0.99-1.24; p=0.08) education. The HR associated with low level of education was significantly higher among female patients, patients <55years, patients with truncal tumours and during the first 5years after diagnosis.

    CONCLUSION: Lower level of education is associated with reduced CMM-specific survival, which may at least partially be attributed to a more advanced stage at diagnosis. These results emphasise the need for improved early detection strategies.

  • 199. Espinosa-Parrilla, Yolanda
    et al.
    Munoz, Xavier
    Bonet, Catalina
    Garcia, Nadia
    Vencesla, Adoracion
    Yiannakouris, Nikos
    Naccarati, Alessio
    Sieri, Sabina
    Panico, Salvatore
    Huerta, Jose M.
    Barricarte, Aurelio
    Menendez, Virginia
    Sanchez-Cantalejo, Emilio
    Dorronsoro, Miren
    Brennan, Paul
    Duarte-Salles, Talita
    Bueno-de-Mesquita, H. B. (As)
    Weiderpass, Elisabete
    Lund, Eiliv
    Clavel-Chapelon, Francoise
    Boutron-Ruault, Marie-Christine
    Racine, Antoine
    Numans, Mattijs E.
    Tumino, Rosario
    Canzian, Federico
    Campa, Daniele
    Sund, Malin
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Johansson, Mattias
    Umeå University, Faculty of Medicine, Department of Biobank Research. International Agency for Research on Cancer (IARC-WHO), Lyon, France.
    Ohlsson, Bodil
    Lindkvist, Bjorn
    Overvad, Kim
    Tjonneland, Anne
    Palli, Domenico
    Travis, Ruth C.
    Khaw, Kay-Tee
    Wareham, Nick
    Boeing, Heiner
    Nesi, Gabriella
    Riboli, Elio
    Gonzalez, Carlos A.
    Sala, Nuria
    Genetic association of gastric cancer with miRNA clusters including the cancer-related genes MIR29, MIR25, MIR93 and MIR106: Results from the EPIC-EURGAST study2014In: International Journal of Cancer, ISSN 0020-7136, E-ISSN 1097-0215, Vol. 135, no 9, p. 2065-2076Article in journal (Refereed)
    Abstract [en]

    MicroRNAs (miRNAs) are post-transcriptional gene regulators involved in a wide range of biological processes including tumorigenesis. Deregulation of miRNA pathways has been associated with cancer but the contribution of their genetic variability to this disorder is poorly known. We analyzed the genetic association of gastric cancer (GC) and its anatomical and histological subtypes, with 133 single-nucleotide polymorphisms (SNPs) tagging 15 isolated miRNAs and 24 miRNA clusters potentially involved in cancer, in 365 GC cases and 1,284 matched controls within the European Prospective Investigation into Cancer and Nutrition cohort. Various SNPs were associated with GC under the log-additive model. Furthermore, several of these miRNAs passed the gene-based permutation test when analyzed according to GC subtypes: three tagSNPs of the miR-29a/miR-29b-1 cluster were associated with diffuse subtype (minimum p-value=1.7 x 10(-4); odds ratio, OR=1.72; 95% confidence interval, CI=1.30-2.28), two tagSNPs of the miR-25/miR-93/miR-106b cluster were associated with cardia GC (minimum p-value=5.38 x 10(-3); OR=0.56, 95% CI=0.37-0.86) and one tagSNP of the miR-363/miR-92a-2/miR-19b-2/miR-20b/miR-18b/miR-106a cluster was associated with noncardia GC (minimum p-value=5.40 x 10(-3); OR=1.41, 95% CI=1.12-1.78). Some functionally validated target genes of these miRNAs are implicated in cancer-related processes such as methylation (DNMT3A, DNMT3B), cell cycle (E2F1, CDKN1A, CDKN1C), apoptosis (BCL2L11, MCL1), angiogenesis (VEGFA) and progression (PIK3R1, MYCN). Furthermore, we identified genetic interactions between variants tagging these miRNAs and variants in their validated target genes. Deregulation of the expression of these miRNAs in GC also supports our findings, altogether suggesting for the fist time that genetic variation in MIR29, MIR25, MIR93 and MIR106b may have a critical role in genetic susceptibility to GC and could contribute to the molecular mechanisms of gastric carcinogenesis.

  • 200.
    Fahlström, Martin
    et al.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Sports Medicine. Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Rehabilitation Medicine.
    Björnstig, Ulf
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Surgery.
    Lorentzon, Ronny
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Sports Medicine.
    Acute Achilles tendon rupture in badminton players1998In: American Journal of Sports Medicine, ISSN 0363-5465, E-ISSN 1552-3365, Vol. 26, no 3, p. 467-470Article in journal (Refereed)
    Abstract [en]

    All patients with badminton-related acute Achilles tendon ruptures registered during 1990 to 1994 at the University Hospital of Umeå were retrospectively followed up using a questionnaire. Thirty-one patients (mean age, 36.0 years), 27 men and 4 women, were included. Thirty patients (97%) described themselves as recreational players or beginners. The majority of the injuries (29 of 31, 94%) happened at the middle or end of the planned game. Previous local symptoms had been noticed by five patients (16%). Long-term results showed that patients treated with surgery had a significantly shorter sick leave absence than patients treated without surgery (50 versus 75 days). There was no obvious selection favoring any treatment modality. None of the surgically treated patients had reruptures, but two reruptures occurred in the nonsurgically treated group. There seemed to be fewer remaining symptoms and a higher sports activity level after the injury in the surgically treated group. Our results indicate that local muscle fatigue may interfere with strength and coordination. Preventive measures such as specific treatment of minor injuries and adequate training of strength, endurance, and coordination are important. Our findings also indicate that surgical treatment and careful postoperative rehabilitation is of great importance among badminton players of any age or sports level with Achilles tendon rupture.

1234567 151 - 200 of 960
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf