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  • 1.
    Adamo, Karin
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Sandblom, Gabriel
    Brännström, Fredrik
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Prevalence and recurrence rate of perianal abscess -a population-based study, Sweden 1997-20092016Ingår i: International Journal of Colorectal Disease, ISSN 0179-1958, E-ISSN 1432-1262, Vol. 31, nr 3, s. 669-673Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    INTRODUCTION: The aim of this study was to assess the impact of diabetes mellitus, Crohn's disease, HIV/aids, and obesity on the prevalence and readmission rate of perianal abscess.

    METHODS: The study cohort was based on the Swedish National Patient Register and included all patients treated for perianal abscess in Sweden 1997-2009. The prevalence and risk for readmission were assessed in association with four comorbidity diagnoses: diabetes mellitus, Crohn's disease, HIV, and/or AIDS and obesity.

    RESULTS: A total of 18,877 patients were admitted during the study period including 11,138 men and 4557 women (2.4:1). Crohn's disease, diabetes, and obesity were associated with a significantly higher prevalence of perianal abscess than an age- and gender-matched background population (p < 0.05). In univariate analysis, neither age nor gender had any significant impact on the risk for readmission. In a multivariate Cox proportional hazard analysis, Crohns disease was the only significant risk factor for readmission of perianal abscess.

    CONCLUSION: Crohn's disease, diabetes, and obesity increase the risk for perianal abscess. Of these, Crohn's and HIV has an impact on readmission. The pathogenesis and the influence of diabetes and obesity need further research if we are to understand why these diseases increase the risk for perianal abscess but not its recurrence.

  • 2. Berglund, Britta
    et al.
    Strigård, Karin
    Karolinska universitetssjukhuset, Huddinge; institutionen för klinisk vetenskap, intervention och teknik (CLINTEC), Karolinska institutet, Stockholm.
    TENS kan lindra illamående efter kolorektal kirurgi: Men placeboeffekten är betydande2011Ingår i: Läkartidningen, ISSN 0023-7205, E-ISSN 1652-7518, Vol. 108, nr 3, s. 90-91Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The aim was to study if postoperative nausea after colorectal surgery could be reduced with patient-active TENS-treatment. Twenty patients with malign diagnosis, ten in a treatment group and ten in a control group, tested TENS the first two postoperative days. The patients made notes about how they used TENS and if their nausea was reduced. Nausea was diminished in both groups, which as well may indicate a placebo effect. Post-operative nausea interferes with mobilization, nutrition and rehabilitation. Since TENS is easy to use and cost-effective it is a valuable method for treatment that can be offered to patients and increase their satisfaction with care. A larger randomized study should be of value.

  • 3.
    Blind, Niillas
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Brännström, Fredrik
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Distance to hospital is not a risk factor for emergency colon cancer surgery.2018Ingår i: International Journal of Colorectal Disease, ISSN 0179-1958, E-ISSN 1432-1262, Vol. 33, nr 9, s. 1195-1200Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    PURPOSE: The purpose of this study is to see if the distance to a hospital performing colon cancer surgery is a risk factor for emergency surgical intervention and to determine the variability between defined but demographically divergent catchment areas.

    METHODS: Data on patients living in Västerbotten County who underwent colon cancer surgery between 2007 and 2010 were extracted from the Swedish Colorectal Cancer Register (SCRCR). Of the 436 registrations matching these criteria, 380 patients were used in the analysis, and their distance to the nearest hospital providing care for colorectal cancer (CRC) was estimated using Google Maps™. The correlations between the risk for emergency surgery and the distance to a hospital, gender, age, income level and hospital catchment area were analysed in uni- and multivariate models.

    RESULTS: Distance to the nearest hospital had no significant effect on the proportion of emergency operations for colon cancer. There was significant variability in risk for emergency surgery between hospital catchment areas, where the catchment areas of the university hospital and the most rural hospital had a higher proportion than the other local hospital catchment area (OR, 2.00 (p = 0.038) and OR, 2.97 (p = 0.005)). These results were still significant when analysed with multivariate logistic regression (OR, 2.13 (p = 0.026) and OR, 3.05 (p = 0.013)).

    CONCLUSION: Distance to a hospital performing colon cancer surgery had no effect on the proportion of emergency surgeries. However, a variability between defined catchment areas was seen. Future studies will focus on possible factors behind this variability.

  • 4.
    Blom, J
    et al.
    Division of Surgery, Department of Clinical Science, Intervention and Technology, Karolinska Institutet at Karolinska University Hospital, Stockholm, Sweden and Division of Coloproctology, Center of Surgical Gastroenterology, K53, Karolinska University Hospital, 141 86, Stockholm, Sweden .
    Nyström, P O
    Division of Surgery, Department of Clinical Science, Intervention and Technology, Karolinska Institutet at Karolinska University Hospital, Stockholm, Sweden .
    Gunnarsson, Ulf
    Division of Surgery, Department of Clinical Science, Intervention and Technology, Karolinska Institutet at Karolinska University Hospital, Stockholm, Sweden .
    Strigård, Karin
    Division of Surgery, Department of Clinical Science, Intervention and Technology, Karolinska Institutet at Karolinska University Hospital, Stockholm, Sweden.
    Endoanal ultrasonography may distinguish Crohn's anal fistulae from cryptoglandular fistulae in patients with Crohn's disease: a cross-sectional study2011Ingår i: Techniques in Coloproctology, ISSN 1123-6337, E-ISSN 1128-045X, Vol. 15, nr 3, s. 327-330Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    BACKGROUND: The aim of the study was a cross-sectional investigation into the types of anal fistulae in patients with Crohn's disease using 3-dimensional endoanal ultrasonography.

    METHODS: The study population consisted of 45 patients with established Crohn's disease referred in a 2-year period for treatment of anal fistula. The fistulae were classified according to the presence of three criteria: 1. bifurcation or secondary extension; 2. cross-sectional width ≥ 3 mm; and 3. content of hyperechoic secretions.

    RESULTS: The fistulae of 24 patients (53%) satisfied two or three criteria and were classified as true Crohn's fistulae, while the fistulae of 21 patients satisfied one or none of the criteria and were the cryptoglandular type. The fistulae in the two or three criteria group had been in existence for 8.4 years on average and those in the cryptoglandular group for 4.5 years on average (P = 0.283). The corresponding numbers of previous operations for fistula were 5.7 (range 0-32) and 1.5 (range 0-6), respectively (P = 0.0211). The presence of colitis or proctitis was similar across the groups, but the perianal Crohn's disease activity index was higher with a Crohn's type of fistula (P = 0.0097). Also, a larger proportion had been treated with anti-TNF-monoclonal antibody (0.0169).

    CONCLUSIONS: Endoanal ultrasonography was capable of discerning two subgroups of fistula in Crohn's patients. These groups were clinically different indicating that the prospect of surgical cure is also different.

  • 5. Carlstedt, Anders
    et al.
    Petersson, Ulf
    Stark, Birgit
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Bringman, Sven
    Egberth, Mattias
    Emanuelsson, Peter
    Olsson, Anders
    Sandblom, Gabriel
    Sjödahl, Rune
    Theodorsson, Elvar
    Abdominell rektusdiastas kan ge funktionella besvär: Indikation för behandling måste förtydligas2018Ingår i: Läkartidningen, ISSN 0023-7205, E-ISSN 1652-7518, Vol. 115, artikel-id FCL4Artikel i tidskrift (Refereegranskat)
  • 6.
    Clay, L
    et al.
    Division of Surgery, Department of Clinical Science, Intervention and Technology, CLINTEC, Karolinska Institutet, Karolinska University Hospital, Huddinge, Stockholm, Sweden .
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi. Division of Surgery, Department of Clinical Science, Intervention and Technology, CLINTEC, Karolinska Institutet, Karolinska University Hospital, Huddinge, Stockholm, Sweden.
    Franklin, Karl A
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi. Division of Surgery, Department of Clinical Science, Intervention and Technology, CLINTEC, Karolinska Institutet, Karolinska University Hospital, Huddinge, Stockholm, Sweden.
    Effect of an elastic girdle on lung function, intra-abdominal pressure, and pain after midline laparotomy: a randomized controlled trial2014Ingår i: International Journal of Colorectal Disease, ISSN 0179-1958, E-ISSN 1432-1262, Vol. 29, nr 6, s. 715-721Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    PURPOSE: Girdles and abdominal binders may reduce pain and stabilize the abdominal wall after laparotomy, but a risk for increased intra-abdominal pressure and decreased lung function is also hypothesized. The aim of this study was to investigate the effect of an abdominal girdle after midline laparotomy in a randomized controlled trial. METHODS: Twenty-three patients undergoing laparotomy were randomized to wear an elastic girdle postoperatively and 25 were randomized to no girdle. Pulmonary function was evaluated with; forced vital capacity (FVC), forced expiratory volume during one second (FEV1), peak expiratory flow (PEF), and cough PEF. Pain was recorded using a visual analog scale (VAS). All patients completed the ventral hernia pain questionnaire (VHPQ) before surgery and at the end of the study. Intra-abdominal pressure was measured via an indwelling urinary catheter. Wound healing was assessed from photographs. RESULTS: FVC, FEV1, PEF, and cough PEF were reduced by about 30 % after surgery, but there were no differences between patients with or without a girdle (ANOVA). Intra-abdominal pressure and wound healing were the same in both groups. Pain was significantly lower on day 5 in the girdle group (p = 0.004). CONCLUSIONS: An individually fitted elastic girdle used after midline laparotomy was found to be safe, as this did not affect lung function, coughing, intra-abdominal pressure, or wound healing. The immediate decline in lung function after surgery is restrictive and due to anesthesia and the surgical procedure. Pain was significantly decreased in the girdle group. The study is registered at ClinicalTrials.gov, number NCT01517217.

  • 7.
    Clay, Leonard
    et al.
    Department of Clinical Science, Intervention and Technique, Division of Surgery, Karolinska Institutet, 171 86 Stockholm, Sweden.
    Franneby, Ulf
    Department of Clinical Research and Education, Division of Surgery, Karolinska Institutet, Södersjukhuset, 118 83 Stockholm, Sweden.
    Sandblom, Gabriel
    Department of Clinical Science, Intervention and Technique, Division of Surgery, Karolinska Institutet, 171 86 Stockholm, Sweden.
    Gunnarsson, Ulf
    Department of Clinical Science, Intervention and Technique, Division of Surgery, Karolinska Institutet, 171 86 Stockholm, Sweden.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Validation of a questionnaire for the assessment of pain following ventral hernia repair-the VHPQ2012Ingår i: Langenbeck's archives of surgery (Print), ISSN 1435-2443, E-ISSN 1435-2451, Vol. 397, nr 8, s. 1219-1224Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The aim of this study was to create and evaluate the validity and reliability of a novel ventral hernia pain questionnaire (VHPQ) to assess pain following surgery for ventral hernia. The questionnaire was constructed using focus groups and patient interviews. Validity was tested on 51 patients who responded to the VHPQ and brief pain inventory (BPI) 1 and 4 weeks following surgery. Reliability and internal consistency was tested on 74 patients who had surgery 3 years earlier and received the VHPQ and BPI on two separate occasions. Pain not related to surgery was examined on one occasion using the VHPQ on 100 non-operated people. For pain intensity items, a significant decrease was seen from week 1 to week 4 postoperative (p < 0.05). Spearman rank correlations were significant between the pain intensity items of the VHPQ and the BPI, tested 1 week postoperative (p < 0.05). Kappa levels for test-retest of items for interference with daily activities were higher than 0.5 for all items except one. Intra-class correlation was significant for pain intensity items (p < 0.05) in the test-retest group. Three years after surgery, the operated group stated more pain in the pain intensity items (p < 0.05) and more interference with daily activities (p < 0.05) than a non-operated group from the general population. The validity and reliability of the VHPQ make it a useful tool in assessing postoperative pain and patient satisfaction.

  • 8.
    Clay, Leonard
    et al.
    Department of Clinical Science, Intervention and Technology (CLINTEC), H9, Karolinska Institutet, 171 64, Stockholm, Sweden.
    Stark, Birgit
    Department of Molecular Medicine and Surgery, Karolinska Institutet, 171 64, Stockholm, Sweden..
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Full-thickness skin graft vs. synthetic mesh in the repair of giant incisional hernia: a randomized controlled multicenter study2018Ingår i: Hernia, ISSN 1265-4906, E-ISSN 1248-9204, nr 2, s. 325-332Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    PURPOSE: Repair of large incisional hernias includes the implantation of a synthetic mesh, but this may lead to pain, stiffness, infection and enterocutaneous fistulae. Autologous full-thickness skin graft as on-lay reinforcement has been tested in eight high-risk patients in a proof-of-concept study, with satisfactory results. In this multicenter randomized study, the use of skin graft was compared to synthetic mesh in giant ventral hernia repair.

    METHODS: Non-smoking patients with a ventral hernia > 10 cm wide were randomized to repair using an on-lay autologous full-thickness skin graft or a synthetic mesh. The primary endpoint was surgical site complications during the first 3 months. A secondary endpoint was patient comfort. Fifty-three patients were included. Clinical evaluation was performed at a 3-month follow-up appointment.

    RESULTS: There were fewer patients in the skin graft group reporting discomfort: 3 (13%) vs. 12 (43%) (p = 0.016). Skin graft patients had less pain and a better general improvement. No difference was seen regarding seroma; 13 (54%) vs. 13 (46%), or subcutaneous wound infection; 5 (20%) vs. 7 (25%). One recurrence appeared in each group. Three patients in the skin graft group and two in the synthetic mesh group were admitted to the intensive care unit.

    CONCLUSION: No difference was seen for the primary endpoint short-term surgical complication. Full-thickness skin graft appears to be a reliable material for ventral hernia repair producing no more complications than when using synthetic mesh. Patients repaired with a skin graft have less subjective abdominal wall symptoms.

  • 9.
    Colliander, Erland B
    et al.
    Department of Orthopaedics, Huddinge University Hospital, Karolinska Institutet, Sweden.
    Strigård, Karin
    Department of Surgery, Huddinge University Hospital, Karolinska Institutet, Huddinge, Sweden .
    Westblad, Pär
    Department of Orthopaedics, Huddinge University Hospital, Karolinska Institutet, Sweden.
    Rolf, Christer
    Department of Orthopaedics, Huddinge University Hospital, Karolinska Institutet, Sweden.
    Nordenström, Jörgen
    Department of Surgery, Huddinge University Hospital, Karolinska Institutet, Huddinge, Sweden.
    Muscle strength and endurance after surgery for primary hyperparathyroidism.1998Ingår i: European Journal of Surgery, ISSN 1102-4151, E-ISSN 1741-9271, Vol. 164, nr 7, s. 489-494Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    OBJECTIVE: To evaluate the effect of surgery on muscular strength and endurance in patients with primary hyperparathyroidism (HPT).

    DESIGN: Prospective open study.

    SETTING: University hospital, Sweden.

    SUBJECTS: Nine patients undergoing HPT surgery and nine matched patients undergoing thyroid resection who acted as controls.

    INTERVENTIONS: Concentric and eccentric endurance was evaluated with a test comprising 100 repeatedly executed muscle action at 90 degrees.s-1. Blood samples obtained before and after operation were analysed for calcium, phosphate, thyroid stimulating hormone (TSH), and parathyroid hormone (PTH) concentrations.

    MAIN OUTCOME MEASURES: Peak torque during maximum voluntary concentric and eccentric muscle actions at 90 degrees.s-1 before, three months and one year after operation.

    RESULTS: There were no differences in concentric and eccentric peak torque before and after operation either within or between groups. Concentric and eccentric endurance were similar in the HPT group and controls before as well as after operation. The return of calcium and PTH concentrations to their reference ranges after parathyroidectomy did not correlate with changes in concentric and eccentric peak torque.

    CONCLUSIONS: The subjective improvement in muscle endurance which is often encountered in patients with HPT after operation is not associated with an objective increase in muscle strength or endurance as measured by isokinetic muscle performance.

  • 10.
    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 universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi. Division of Surgery, Department of Clinical Science, Intervention and Technology, CLINTEC, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden .
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi. 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 intraoperatively2014Ingår i: Hernia, ISSN 1265-4906, E-ISSN 1248-9204, Vol. 18, nr 4, s. 465-471Artikel i tidskrift (Refereegranskat)
    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.

  • 11. Emanuelsson, Peter
    et al.
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Dahlstrand, Ursula
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    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 sutures2016Ingår i: Surgery, ISSN 0039-6060, E-ISSN 1532-7361, Vol. 160, nr 5, s. 1367-1375Artikel i tidskrift (Refereegranskat)
    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.

  • 12.
    Emanuelsson, Peter
    et al.
    Department for Surgery, CLINTEC, Karolinska Institutet, Stockholm, Sweden.
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    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-up2014Ingår i: Journal of Plastic, Reconstructive & Aesthetic Surgery, ISSN 1748-6815, E-ISSN 1532-1959, Vol. 67, nr 8, s. 1082-1088Artikel i tidskrift (Refereegranskat)
    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.

  • 13. Falk, Peter
    et al.
    Ruiz-Jasbon, Fernando
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Ivarsson, Marie-Lois
    An ex vivo model using human peritoneum to explore mesh-tissue integration2017Ingår i: Biology open, ISSN 2046-6390, Vol. 6, nr 9, s. 1391-1395Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Biological compatibility, in terms of implantation of foreign mesh material in hernia surgery, still needs experimental investigation. Present study develops an experimental model using human peritoneum to study the integration between tissue and different mesh material. The ex vivo model using peritoneal tissue was studied with different mesh material, and integration was monitored over time using microscopy.It could be demonstrated that the peritoneal model may be kept viable in culture for several weeks. Cell migration was seen after 7-10 days in culture and could be further monitored over several weeks. The use of a human artificial model environment enabling the investigation of tissue/mesh integration has, to our knowledge, not been described previously.This proof-of-concept model was developed, for the investigation of peritoneal biology and the integration between tissue and different mesh material. It has the potential to be useful in studies on other important biological mechanisms involving the peritoneum.

  • 14.
    Fredriksson, Katarina
    et al.
    Department of Anesthesiology and Intensive Care, Karolinska University Hospital, Huddinge, Sweden.
    Hammarqvist, Folke
    Gastrocentrum, Department of Surgery, Karolinska University Hospital, Huddinge, Sweden.
    Strigård, Karin
    Gastrocentrum, Department of Surgery, Karolinska University Hospital, Huddinge, Sweden.
    Hultenby, Kjell
    Clinical Research Center at Karolinska University Hospital, Huddinge, Sweden.
    Ljungqvist, Olle
    Center for Gastrointestinal Disease at Ersta Hospital, CLINTEC, Karolinska Institutet, Stockholm, Sweden.
    Wernerman, Jan
    Department of Anesthesiology and Intensive Care, Karolinska University Hospital, Huddinge, Sweden.
    Rooyackers, Olav
    Department of Anesthesiology and Intensive Care, Karolinska University Hospital, Huddinge, Sweden.
    Derangements in mitochondrial metabolism in intercostal and leg muscle of critically ill patients with sepsis-induced multiple organ failure.2006Ingår i: American Journal of Physiology. Endocrinology and Metabolism, ISSN 0193-1849, E-ISSN 1522-1555, Vol. 291, nr 5, s. 1044-1050Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Critically ill patients treated for multiple organ failure often develop muscle dysfunction. Here we test the hypothesis that mitochondrial and energy metabolism are deranged in leg and intercostal muscle of critically ill patients with sepsis-induced multiple organ failure. Ten critically ill patients suffering from sepsis-induced multiple organ failure and requiring mechanical ventilation were included in the study. A group (n = 10) of metabolically healthy age- and sex-matched patients undergoing elective surgery were used as controls. Muscle biopsies were obtained from the vastus lateralis (leg) and intercostal muscle. The activities of citrate synthase and mitochondrial respiratory chain complexes I and IV and concentrations of ATP, creatine phosphate, and lactate were analyzed. Morphological evaluation of mitochondria was performed by electron microscopy. Activities of citrate synthase and complex I were 53 and 60% lower, respectively, in intercostal muscle of the patients but not in leg muscle compared with controls. The activity of complex IV was 30% lower in leg muscle but not in intercostal muscle. Concentrations of ATP and creatine phosphate were, respectively, 40 and 34% lower, and lactate concentrations were 43% higher in leg muscle but not in intercostal muscle. We conclude that both leg and intercostal muscle show a twofold decrease in mitochondrial content in intensive care unit patients with multiple organ failure, which is associated with lower concentrations of energy-rich phosphates and an increased anaerobic energy production in leg muscle but not in intercostal muscle.

  • 15.
    Gkekas, Ioannis
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi. Department of Surgery, Sunderby hospital Luleå, Luleå, Sweden.
    Novotny, Jan
    Department of Surgery, Sunderby hospital Luleå, Luleå, Sweden..
    Pecen, Ladislav
    Faculty Hospital Pilsen, Charles University, Prague, Czech Republic.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Palmqvist, Richard
    Umeå universitet, Medicinska fakulteten, Institutionen för medicinsk biovetenskap, Patologi.
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Microsatellite instability as a prognostic factor in stage II colon cancer patients: a meta-analysis of published literature2017Ingår i: Anticancer Research, ISSN 0250-7005, E-ISSN 1791-7530, Vol. 37, nr 12, s. 6563-6574Artikel, forskningsöversikt (Refereegranskat)
    Abstract [en]

    BACKGROUND/AIM: The prognostic role of microsatellite instability (MSI) in stage II colon cancer patients remains controversial despite the fact that it has been investigated in a number of studies. Hazard ratios differ considerably among these studies. We performed a meta-analysis to define the significance of MSI in this group of patients.

    MATERIALS AND METHODS: Studies indexed in PubMed presenting separate data on MSI status and survival outcomes for stage II colon cancer patients have been analyzed using fixed-effect meta-analysis of hazard ratio (HR) according to the method of Peto.

    RESULTS: Analysis was performed on 19 studies including 5,998 patients. A 47.3% of patients received postoperative chemotherapy and included 52.8% males and 47.2% females. Eight studies included some rectal cancer patients although this cohort was not clearly defined in 3 of these. MSI observed in 20.8% (mean) of patients (median 19.9%). HR for overall survival (OS) of MSI vs. microsatellite stable (MSS) tumors for the entire population: 0.73 (95% confidence interval (CI)=0.33-1.65); HR for disease-free survival (DFS):0.60 (95%CI=0.27-1.32). No statistical significant difference was found when studies analyzing MSI with genotyping (MG) and immunohistochemistry (IHC) were compared separately (MG vs. IHC: HR OS 0.45, 95%CI=0.10-2.05 vs. 0.95, 95%CI=0.57-1.58; HR DFS 0.51, 95%CI=0.14-1.85 vs. 0.67, 95%CI=0.26-1.70). However, numerically MSI determination with genotyping shows significantly lower hazard ratios for both DFS and OS. Separate analysis of studies describing colon cancer patients only showed HR OS 0.72 (95%CI=0.31-1.71); HR DFS 0.60 (95%CI=0.27-1.31).

    CONCLUSION: No significant relation was found between MSI status and OS or DFS. Routine determination of MSI status to guide postoperative management of stage II colon cancer patients cannot be recommended. New large scale high quality studies are needed to answer this question definitively, since currently analyzed studies vary considerably.

  • 16.
    Gunnarsson, Ulf
    et al.
    Department of Surgery, CLINTEC, Karolinska Institutet, Karolinska University Hospital, Gastrocentrum K53, 141 86, Huddinge, Stockholm, Sweden .
    Johansson, M
    Department of Physiotherapy, Karolinska Institutet, Karolinska University Hospital, Huddinge, Stockholm, Sweden .
    Strigård, Karin
    Department of Surgery, CLINTEC, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.
    Assessment of abdominal muscle function using the Biodex System-4. Validity and reliability in healthy volunteers and patients with giant ventral hernia2011Ingår i: Hernia, ISSN 1265-4906, E-ISSN 1248-9204, Vol. 15, nr 4, s. 417-421Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    BACKGROUND: The decrease in recurrence rates in ventral hernia surgery have led to a redirection of focus towards other important patient-related endpoints. One such endpoint is abdominal wall function. The aim of the present study was to evaluate the reliability and external validity of abdominal wall strength measurement using the Biodex System-4 with a back abdomen unit.

    MATERIAL AND METHOD: Ten healthy volunteers and ten patients with ventral hernias exceeding 10 cm were recruited. Test-retest reliability, both with and without girdle, was evaluated by comparison of measurements at two test occasions 1 week apart. Reliability was calculated by the interclass correlation coefficients (ICC) method. Validity was evaluated by correlation with the well-established International Physical Activity Questionnaire (IPAQ) and a self-assessment of abdominal wall strength.

    RESULTS: One person in the healthy group was excluded after the first test due to neck problems following minor trauma. The reliability was excellent (>0.75), with ICC values between 0.92 and 0.97 for the different modalities tested. No differences were seen between testing with and without a girdle. Validity was also excellent both when calculated as correlation to self-assessment of abdominal wall strength, and to IPAQ, giving Kendall tau values of 0.51 and 0.47, respectively, and corresponding P values of 0.002 and 0.004.

    CONCLUSION: Measurement of abdominal muscle function using the Biodex System-4 is a reliable and valid method to assess this important patient-related endpoint. Further investigations will be made to explore the potential of this technique in the evaluation of the results of ventral hernia surgery, and to compare muscle function after different abdominal wall reconstruction techniques.

  • 17.
    Gunnarsson, Ulf
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Stark, Birgit
    Stockholm, Sweden.
    Dahlstrand, Ursula
    Stockholm, Sweden.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Correlation between Abdominal Rectus Diastasis Width and Abdominal Muscle Strength2015Ingår i: Digestive Surgery, ISSN 0253-4886, E-ISSN 1421-9883, Vol. 32, nr 2, s. 112-116Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Surgery for Abdominal Rectus Diastasis (ARD) is a controversial topic and some argue that it is solely an aesthetic problem. Many symptoms in these patients are indefinite, and no objective criteria have been established, indicating which patients are likely to benefit from surgery. This study investigated the correlation between preoperative assessment and intraoperative measurement of ARD width, and objective measurements of muscle strength. Methods: 57 patients undergoing surgery for ARD underwent preoperative assessment of ARD width by clinical measurement and CT scan, and thereafter intraoperative measurement. Abdominal muscle strength was investigated using the Biodex System 4 including flexion, extension and isometric measurements. Correlations were calculated by the Spearman test. Results: Intraoperative ARD width between the umbilicus and the symphysis correlated strongly with Biodex measurements during flexion (p = 0.007, R = -0.35) and isometric work load (p = 0.01, R = -0.34). The following measurements showed no correlation: between muscle strength and BMI; muscle strength and waistline; or between muscle strength and ARD width above the umbilicus, assessed preoperatively at the outpatient clinic, by CT scan, or measured intraoperatively. Conclusion: There is a strong correlation between intraoperatively measured ARD width below the umbilicus and flexion and isometric abdominal muscle strength measured with the Biodex System 4.

  • 18.
    Gunnarsson, Ulf
    et al.
    Division of Surgery, Department of Clinical Science, Intervention and Technology, CLINTEC, Karolinska Institutet at the Karolinska University Hospital/Huddinge, Stockholm, Sweden.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi. Division of Surgery, Department of Clinical Science, Intervention and Technology, CLINTEC, Karolinska Institutet at the Karolinska University Hospital/Huddinge, Stockholm, Sweden.
    3D intrastomal ultrasonography, an instrument for detecting stoma-related fistula2012Ingår i: Techniques in Coloproctology, ISSN 1123-6337, E-ISSN 1128-045X, Vol. 16, nr 3, s. 233-236Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The aim of the present study was to evaluate the recently developed 3D intrastomal ultrasonography in diagnosing stoma-associated complaints and suspected complications after parastomal hernia repair such as peristomal fistula and abscesses. 3D intrastomal ultrasonography was used to image peristomal tissue in two patients with complaints after parastomal hernia repair performed with IPOM (intraperitoneal onlay mesh). One patient had ulcerative colitis and one Crohn's disease. Both patients were investigated because of pain and in one case also signs of a subcutaneous abscess. Intrastomal ultrasonography revealed fistulas connected to the intestinal segment leading to the stoma in both cases. Both cases also showed signs of a fistula descending to the abdominal cavity. In one case, a subcutaneous abscess was identified and in the other a small abscess adjacent to the fistula and the edge of the fascia. Stoma complaints after surgery for parastomal hernia with implantation of IPOM mesh can be diagnosed using 3D intrastomal ultrasonography. This new 3D technique for imaging intrastomal hernia can be used to complement traditional methods in the detection of stoma-associated abscesses and fistulas with or without foreign material such as mesh.

  • 19.
    Gurmu, A
    et al.
    Department of Surgery, CLINTEC, Karolinska Institute at the Karolinska University Hospital, Huddinge, Stockholm, Sweden.
    Gunnarsson, Ulf
    Department of Surgery, CLINTEC, Karolinska Institute at the Karolinska University Hospital, Huddinge, Stockholm, Sweden.
    Strigård, Karin
    Department of Surgery, CLINTEC, Karolinska Institute at the Karolinska University Hospital, Huddinge, Stockholm, Sweden.
    Imaging of parastomal hernia using three-dimensional intrastomal ultrasonography2011Ingår i: British Journal of Surgery, ISSN 0007-1323, E-ISSN 1365-2168, Vol. 98, nr 7, s. 1026-9Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    BACKGROUND: Parastomal hernia is common in patients with a permanent stoma. At present there is no standard method for imaging a parastomal hernia. The aim of this study was to investigate the value of three-dimensional intrastomal ultrasonography in differentiating between a parastomal hernia and a bulge.

    METHODS: Twenty patients were divided into four groups according to ultrasonography setting and probe cover. All patients were tested using three different ultrasound probe frequencies (9, 13 and 16 MHz). The intrastomal examination was performed during provocation in both the supine and upright positions, with a protector or water-containing balloon surrounding the probe.

    RESULTS: The sharpest images were obtained using the rectal setting with a water-containing balloon surrounding the probe at 9 MHz in supine and erect positions, for evaluation of both fascia and muscle; in some instances even implanted mesh was detectable. When switched to render mode, the pictures improved in sharpness and it was easier to identify anatomical landmarks.

    CONCLUSION: Intrastomal ultrasonography using the rectal setting and a frequency of 9 MHz is a feasible method for imaging a parastomal hernia and differentiating it from an abdominal bulge. The image quality improves when render mode is used.

  • 20.
    Holmdahl, Viktor
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Stark, Birgit
    Department of Molecular Medicine and Surgery, Karolinska Institute, Solna, Sweden..
    Clay, Leonard
    Department of Clinical Science and Education, Karolinska Institute, Solna, Sweden..
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    One-year outcome after repair of giant incisional hernia using synthetic mesh or full-thickness skin graft: a randomised controlled trial2019Ingår i: Hernia, ISSN 1265-4906, E-ISSN 1248-9204, Vol. 23, nr 2, s. 355-361Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    PURPOSE: Repair of giant incisional hernia often requires complex surgery and the results of conventional methods using synthetic mesh as reinforcement are unsatisfactory, with high recurrence and complication rates. Our hypothesis was that full-thickness skin graft (FTSG) provides an alternative reinforcement material for giant incisional hernia repair and that outcome is improved. The aim of this study was to compare FTSG with conventional materials currently used as reinforcement in the repair of giant incisional hernia.

    METHODS: A prospective randomised controlled trial was conducted, comparing FTSG with synthetic mesh as reinforcement in the repair of giant (> 10 cm minimum width) incisional hernia. One-year follow-up included a blinded clinical examination by a surgeon and objective measurements of abdominal muscle strength using the Biodex-4 system.

    RESULTS: 52 patients were enrolled in the study: 24 received FTSG and 28 synthetic mesh. Four recurrences (7.7%) were found at 1-year follow-up, two in each group. There were no significant differences regarding pain, patient satisfaction or aesthetic outcome between the groups. Strength in the abdominal wall was not generally improved in the study population and there was no significant difference between the groups.

    CONCLUSION: The outcome of repair of giant incisional hernia using FTSG as reinforcement is comparable with repair using synthetic mesh. This suggests that FTSG may have a future place in giant incisional hernia repair.

  • 21.
    Husberg, Britt
    et al.
    Karolinska University Hospital Huddinge, Department of Surgical Gastroenterology, Stockholm, Sweden.
    Malmborg, P
    Karolinska University Hospital Huddinge, Department of Surgical Gastroenterology, Stockholm, Sweden.
    Strigård, Karin
    Karolinska University Hospital Huddinge, Department of Surgical Gastroenterology, Stockholm, Sweden.
    Treatment with botulinum toxin in children with chronic anal fissure.2009Ingår i: European journal of pediatric surgery, ISSN 0939-7248, E-ISSN 1439-359X, Vol. 19, nr 5, s. 290-292Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    INTRODUCTION: Chronic anal fissures with painful defecation and bloodstained stools can be seen in children of all ages. Constipation may precede or appear in connection with the symptoms. Adult patients with anal fissures have been treated successfully with the injection of botulinum toxin into both the internal and external sphincter. The effect of botulinum toxin is reversible and lasts for 3-4 months. This pilot study attempted to examine whether botulinum toxin is also effective in paediatric cases of anal fissure, a treatment which not yet has been reported in the literature.

    MATERIAL AND METHODS: Six boys and seven girls aged 1-10 years were treated with botulinum toxin (Botox ((R))) during 2002-2005 due to chronic anal fissure. Conventional treatment with laxatives and local anaesthetics had been unsuccessful in all cases. The treatment was given to five children under 2 years of age in a dosage of 1.25 Ux2. Eight children over 2 years of age were given 2.5 Ux2. The injections were given in the external sphincter on both sides of the fissure using EMG-stimulation for guidance and were performed under light anaesthetics (Diprivan ((R))). Follow-up was conducted at 1 and 3 months after treatment.

    RESULTS: Within one week, 11 of the children were free from pain and blood stained stools, according to their parent's observations. One 10-year old patient initially showed some improvement but soon experienced a recurrence. After another injection with a higher dosage 2 months later, the fissure healed. One 4-year old patient did not show any signs of improvement. The laxatives, which had been withdrawn after the injection treatment, were then reinstated. At the 3 month post-treatment examination the patient was finally symptom-free with no signs of a fissure. There were no negative side-effects detected in any of the cases. Seven recurrences were noted in 6 of the patients after 3-30 months, often in connection with an episode of constipation. Repeat injections were offered and accepted by four of these patients, once more producing good immediate results.

    CONCLUSION: Treatment with botulinum toxin in the external sphincter produces a quick and effective alleviation of pain with healing of chronic anal fissures in children. The treatment is not considered to carry any risks but requires light anaesthesia. Recurrences are common after the pharmacological effect has receded but can be cured with an additional injection.

  • 22. Husberg, Britt
    et al.
    Salehi, Karin
    Peters, Trevor
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Michanek, Margareta
    Nordenskjöld, Agneta
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Congenital intestinal malrotation in adolescent and adult patients: a 12-year clinical and radiological survey2016Ingår i: SpringerPlus, E-ISSN 2193-1801, Vol. 5, artikel-id 245Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Congenital intestinal malrotation is mainly detected in childhood and caused by incomplete rotation and fixation of the intestines providing the prerequisites for life-threatening volvulus of the midgut. The objective of this study was to evaluate a large cohort of adult patients with intestinal malrotation. Thirty-nine patients, 15-67 years, were diagnosed and admitted to a university setting with congenital intestinal malrotation 2002-2013. The patients were divided into three age groups for stratified evaluation. Medical charts were scrutinized, and clinical outcome of surgery was reviewed. Twelve patients presented as emergency cases, whereas 27 were admitted as elective cases. Diagnosis was established in 33 patients who underwent radiological investigation and in the remaining 6 during surgery. A Ladd's operation was performed in 31 symptomatic patients; a conservative strategy was chosen in eight cases. Volvulus was more common in the younger age group. Twenty-six surgically treated patients were available for telephone interview, 1-12 years after surgery. All patients, except one, regarded their general condition improved to a high degree (n = 18) or with some reservation (n = 7). Twelve patients suffered remaining abdominal pain of a chronic and diffuse character. Due to recurrence of malrotation six patients were reoperated. Symptomatic malrotation occurs in both children and the adult population. Improved awareness and an accurately performed CT scan can reveal the malformation and enable surgical treatment. A Ladd's procedure relieved most patients from their severe complaints even when a history of several years of suffering existed.

  • 23.
    Inkiläinen, Aapo
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Urologi och andrologi.
    Styrke, Johan
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Urologi och andrologi. Sundsvall Hospital, Sundsvall, Sweden .
    Ljungberg, Börje
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Urologi och andrologi.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Urologi och andrologi.
    Occurrence of abdominal bulging and hernia after open partial nephrectomy: a retrospective cohort study2018Ingår i: Scandinavian journal of urology, ISSN 2168-1805, E-ISSN 2168-1813, Vol. 52, nr 1, s. 54-58Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    OBJECTIVE: Abdominal bulging and incisional hernia are known sequelae after open partial nephrectomy (OPN) via a flank incision. Precise rates are not known. The aims of this study were to determine the rates of bulging and hernia after OPN, and to examine potential risk factors.

    MATERIALS AND METHODS: A retrospective review was undertaken of 197 consecutive patients operated on with OPN via a flank incision between 2004 and 2014. After exclusion, 184 patients remained. Medical records and radiological images from the preoperative work-up, and follow-up after surgery at 3, 12 and 24 months, were reviewed.

    RESULTS: A visible bulge was noted in 36 of the 184 patients at clinical examination. Only 20 cases (12%) remained at the last follow-up. Radiological changes interpreted as a bulge were initially seen in 50 patients, while only 35 (19%) remained at the last radiological examination. Clinical incisional hernia was reported in five patients (3%), and radiological hernia was seen in 10 patients (5%). Patients who developed a hernia had a higher body mass index (30 vs 26 kg/m(2), p = 0.02). Other demographic variables showed no significant correlation.

    CONCLUSIONS: Bulging is a common sequela after flank incision. The rate of incisional hernia after flank incision is comparable to rates after other forms of abdominal surgery. Further studies are required to evaluate the psychological and physiological effects of bulging, the pain and weakness caused, and the cosmetic embarrassment suffered by the patient.

  • 24.
    Jiang, G X
    et al.
    Division of Neurology, Department of Clinical Neuroscience and Family Medicine, Huddinge University Hospital, Huddinge, Sweden.
    de Pedro-Cuesta, J
    Division of Neurology, Department of Clinical Neuroscience and Family Medicine, Huddinge University Hospital, Huddinge, Sweden. Department of Applied Epidemiology, National Centre for Epidemiology, Carlos III Institute of Health, Madrid, Spain.
    Strigård, Karin
    Department of Surgery, Huddinge University Hospital, Karolinska Institutet, Stockholm, Sweden.
    Olsson, T
    Division of Neurology, Department of Clinical Neuroscience and Family Medicine, Huddinge University Hospital, Huddinge, Sweden.
    Link, H
    Division of Neurology, Department of Clinical Neuroscience and Family Medicine, Huddinge University Hospital, Huddinge, Sweden.
    Pregnancy and Guillain-Barré syndrome: a nationwide register cohort study.1996Ingår i: Neuroepidemiology, ISSN 0251-5350, E-ISSN 1423-0208, Vol. 15, nr 4, s. 192-200Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In this study, we determined the relationship between Guillain-Barré syndrome (GBS) and pregnancy. By taking advantage of several nationwide registers and the availability of personal identification numbers, we calculated person-years for Swedish females aged 15-49 years in the following categories: (1) neither pregnant nor postpartum; (2) pregnant; (3) in the first month postpartum, or (4) in the first 3 months postpartum during 1973-1983. For these women, we determined the corresponding exposure status of hospital-registered GBS cases. Medical records were examined for GBS cases hospitalized during the 2-week period postpartum and 1-month period after the last menstruation. Poisson regression analysis yielded age-adjusted relative risks (RRs) of 0.86 (95% CI 0.40-1.84) for pregnant women, and 1.47 (0.54-3.99) and 2.21 (0.55-8.94) for females during the 3-month and the 30-day period after delivery. The risk for GBS seems to be lower during pregnancy and increases after delivery.

  • 25. Johansson, M
    et al.
    Gunnarsson, Ulf
    Department of Surgery, CLINTEC, Karolinska Institute, Karolinska University Hospital, Gastrocentrum K53, 141 86, Huddinge, Stockholm, Sweden .
    Strigård, Karin
    Department of Surgery, CLINTEC, Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden.
    Different techniques for mesh application give the same abdominal muscle strength2011Ingår i: Hernia, ISSN 1265-4906, E-ISSN 1248-9204, Vol. 15, nr 1, s. 65-68Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    PURPOSE: This study investigates abdominal muscle strength after surgery for giant hernia with the onlay, sublay or intraperitoneal (IPOM) method. Theoretically, placement of the mesh may result in different possibilities regarding function and postoperative physical activity related to abdominal muscle function.

    METHOD: Twenty-four patients operated for large ventral hernias using the onlay, sublay or IPOM technique were evaluated 1 year following surgery for abdominal wall strength using Biodex system 4.

    RESULTS: Despite the different surgical techniques used, no differences were observed in abdominal wall strength between the groups.

    CONCLUSION: The postoperative strength of abdominal wall muscles is independent of the method used for reconstruction of large abdominal wall hernia, and the choice of surgical technique should be directed by anatomical circumstances.

  • 26.
    Kamel, Ashraf F
    et al.
    Department of Pediatrics, Huddinge University Hospital, Huddinge, Sweden.
    Norgren, Svante
    Department of Pediatrics, Huddinge University Hospital, Huddinge, Sweden.
    Strigård, Karin
    Department of Surgery, Huddinge University Hospital, Huddinge, Sweden.
    Thörne, Anders
    Endocrine Research Unit, Huddinge University Hospital, Huddinge, Sweden.
    Fakhrai-Rad, Hossein
    Department of Molecular Medicine, Karolinska Hospital, Stockholm, Sweden.
    Galli, Joakim
    Department of Molecular Medicine, Karolinska Hospital, Stockholm, Sweden.
    Marcus, Claude
    Department of Pediatrics, Huddinge University Hospital, Huddinge, Sweden.
    Age-dependent regulation of lipogenesis in human and rat adipocytes.2004Ingår i: Journal of Clinical Endocrinology and Metabolism, ISSN 0021-972X, E-ISSN 1945-7197, Vol. 89, nr 9, s. 4601-4606Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The regulation of adipocyte metabolism is of importance for adipose tissue growth and therefore also for the development of obesity. This study was designed to investigate the regulation of basal and insulin-induced lipogenesis, glucose transport, and glucose transporter protein expression in human and rat adipocytes from different age groups. The study included 21 infants, 21 children, nine adults, and 80 male weaned and 20 male adult Fischer rats. The lipogenesis experiments were performed under conditions at which glucose transport is rate limiting. Basal lipogenesis was approximately three times higher in infants and children than in adults, whereas insulin-induced lipogenesis was two times higher in infants than in children and adults. In rats, basal lipogenesis, insulin-induced lipogenesis, and insulin sensitivity were two times higher in weaned than in adult animals. Moreover, basal and insulin-induced glucose transport were two times higher in weaned than in adult rats. No differences were detected in GLUT1 or GLUT4 content between any of the age groups in human or in rat adipocytes. In conclusion, basal and insulin-stimulated lipogenesis are increased in adipocytes early in life. This may promote adipose tissue growth in early age. The data indicate that age-dependent variation in basal and insulin-stimulated lipogenesis is differently regulated.

  • 27.
    Lindmark, Mikael
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Löwenmark, Thyra
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Dahlstrand, Ursula
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Risk factors for surgical complications in ventral hernia repair2018Ingår i: World Journal of Surgery, ISSN 0364-2313, E-ISSN 1432-2323, Vol. 42, nr 11, s. 3528-3536Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    BACKGROUND: The aim of this study was to identify risk factors for an adverse event, i.e. early surgical complication, need for ICU care and readmission, following ventral hernia repair. Our hypothesis was that there is an association between an increased complication rate following ventral hernia repair and specific factors, including hernia size, BMI > 35, concomitant bowel surgery, ASA-class, age, gender and method of hernia repair.

    METHODS: Data from a hernia database with prospectively entered data on 408 patients operated for ventral hernia between 2007 and 2014 at two Swedish university hospitals were analysed. A 3-month follow-up of complications, need for intensive care and readmission, was performed by reviewing the medical records.

    RESULTS: Eighty-one of 408 patients (20%) had a registered complication. Fifty-eight (14%) of these were classed as Clavien I-IIIa, and in 19 cases a Clavien IIIb-IV complication was reported. Large hernia size was associated with increased risk for early complication. A Kendall Tau test analysis revealed a proportional relationship between hernia size and modified Clavien outcome class (p < 0.001). Morbid obesity, ASA-class, method, hernia recurrence, age and concomitant bowel surgery were not statistically significant predictors of adverse events.

    CONCLUSIONS: Assessment of hernia aperture size is of great importance in the preoperative evaluation of ventral hernia patients to consider risk for post-operative complications. These results suggest a careful attitude when applying watchful waiting concepts and when postponing hernia surgery to achieve weight loss. A delaying attitude may result in increased risk of complications caused by increasing hernia size.

  • 28.
    Lindmark, Mikael
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap.
    Nordin, Pär
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap.
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap.
    Patient Reported Injuries After Ventral Hernia Repair2019Ingår i: Scandinavian Journal of Surgery, ISSN 1457-4969, E-ISSN 1799-7267, Vol. 108, nr 1, s. 30-35Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    BACKGROUND AND AIMS: The Swedish National Patient Insurance Company (LÖF) can compensate patients who believe they have been exposed to an avoidable injury or malpractice in healthcare. Its register covers 95% of Swedish healthcare providers.

    MATERIAL AND METHODS: Data on patients operated for primary or incisional ventral hernia in Sweden between 2010 and 2015 and who had filed a claim, were retrieved from LÖF. A total of 290 cases were identified and included. Files include a copy of records, relevant imaging, and an expert advisor's opinion.

    RESULTS: Inadvertent enterotomy occurred during 25 repairs and in these cases, laparoscopic repair was clearly overrepresented ( p  < 0.001). Complications related to the surgical site (infection and ugly scar) were predominantly related to open repairs ( p  < 0.001). Twenty percentage (57/290) of the claims were directly related to an anesthetic mishap. Univariate ordinal regression showed that the odds of receiving a high reimbursement was significantly increased if laparoscopic repair was performed p  < 0.001 (odds ratio: 0.37; 95% confidence interval: 0.21-0.65). Sixty-three percentage of claims were filed by women.

    CONCLUSION: Inadvertent enterotomy is overrepresented, and the probability that a claim filed for an avoidable injury leads to high reimbursement is greater if laparoscopic repair is performed rather than open ventral hernia repair. The high amount of injuries related to general anesthesia during umbilical hernia repair may be reduced with an increased proportion executed in local anesthesia.

  • 29.
    Lindquist, Bo
    et al.
    Barnens sjukhus, Huddinge Universitetssjukhus.
    Söderström, Ulf
    Barnens sjukhus, Huddinge Universitetssjukhus.
    Nyström, Hans
    Strigård, Karin
    Gastrocentrum, Huddinge Universitetssjukhus.
    Husberg, Britt
    Barnkirurgen, Astrid Lindgrens barnsjukhus, Stockholm.
    [Report from a meeting of the Swedish Medical Society. Interdisciplinary cooperation can be necessary to manage constipation and encopresis in children].2002Ingår i: Läkartidningen, ISSN 0023-7205, E-ISSN 1652-7518, Vol. 99, nr 28-29, s. 3035-3037Artikel i tidskrift (Refereegranskat)
  • 30.
    Nordenström, J
    et al.
    Department of Surgery, Huddinge University Hospital, Sweden.
    Strigård, Karin
    Department of Surgery, Huddinge University Hospital, Sweden.
    Perbeck, L
    Willems, J
    Bågedahl-Strindlund, M
    Linder, J
    Hyperparathyroidism associated with treatment of manic-depressive disorders by lithium.1992Ingår i: European Journal of Surgery, ISSN 1102-4151, E-ISSN 1741-9271, Vol. 158, nr 4, s. 207-211Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    OBJECTIVE: To clarify the association between treatment of affective psychiatric disorders with lithium, and the development of secondary hyperparathyroidism.

    DESIGN: Retrospective review of medical records, 1973-89.

    SUBJECTS: 17 patients with affective psychiatric disorders who were treated with lithium (n = 6) or with tricyclic antidepressant, or neuroleptic, drugs (n = 11) all of whom were operated on for hyperparathyroidism.

    MAIN OUTCOME MEASURE: Duration of lithium therapy and parathyroid histology.

    RESULTS: Parathyroid hyperplasia was present in 5 patients who had taken lithium during a median period of 13 years. A parathyroid adenoma was found in one patient treated with lithium for three years. Ten of the 11 patients who had been treated with tricyclic antidepressant, or neuroleptic drugs had a parathyroid adenoma and the remaining one had an adenoma as an underlying cause of hyperparathyroidism.

    CONCLUSION: Hyperparathyroidism in patients who have undergone long term treatment with lithium is associated with parathyroid hyperplasia. This indicates that lithium may exert a chronic stimulus that results in secondary hyperparathyroidism.

  • 31.
    Näsvall, Pia
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi. Department of Surgery, Sunderby Hospital/Umeå University, 97180 Luleå, Sweden.
    Dahlstrand, Ursula
    Löwenmark, Thyra
    Rutegård, Jörgen
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Quality of life in patients with a permanent stoma after rectal cancer surgery2017Ingår i: Quality of Life Research, ISSN 0962-9343, E-ISSN 1573-2649, Vol. 26, nr 1, s. 55-64Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    AIM: Health-related quality of life (HRQoL) assessment is important in understanding the patient's perspective and for decision-making in health care. HRQoL is often impaired in patients with stoma. The aim was to evaluate HRQoL in rectal cancer patients with permanent stoma compared to patients without stoma.

    METHODS: 711 patients operated for rectal cancer with abdomino-perineal resection or Hartman's procedure and a control group (n = 275) operated with anterior resection were eligible. Four QoL questionnaires were sent by mail. Comparisons of mean values between groups were made by Student´s independent t test. Comparison was made to a Swedish background population.

    RESULTS: 336 patients with a stoma and 117 without stoma replied (453/986; 46 %). A bulging or a hernia around the stoma was present in 31.5 %. Operation due to parastomal hernia had been performed in 11.7 % in the stoma group. Mental health (p = 0.007), body image (p < 0.001), and physical (p = 0.016) and emotional function (p = 0.003) were inferior in patients with stoma. Fatigue (p = 0.019) and loss of appetite (p = 0.027) were also more prominent in the stoma group. Sexual function was impaired in the non-stoma group (p = 0.034). However in the stoma group, patients with a bulge/hernia had more sexual problems (p = 0.004). Pain was associated with bulge/hernia (p < 0.001) and fear for leakage decreased QoL (p < 0.001). HRQoL was impaired compared to the Swedish background population.

    CONCLUSION: Overall HRQoL in patients operated for rectal cancer with permanent stoma was inferior compared to patients without stoma. In the stoma group, a bulge or a hernia around the stoma further impaired HRQoL.

  • 32.
    Näsvall, Pia
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap.
    Dahlstrand, Ursula
    Löwenmark, Thyra
    Rutegård, Jörgen
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Quality of life with permanent stoma after rectal cancer surgeryManuskript (preprint) (Övrigt vetenskapligt)
  • 33.
    Näsvall, Pia
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi. Department of Surgery, Sunderby Hospital, Luleå, Sweden.
    Rutegård, Jörgen
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Dahlberg, Michael
    Department of Surgery, Sunderby Hospital, Luleå, Sweden.
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Parastomal hernia repair with intraperitoneal mesh2017Ingår i: Surgery Research and Practice, ISSN 2356-7759, Vol. 2017, s. 51+4artikel-id 8597463Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Purpose. Parastomal hernia is a common complication following a stoma and may cause leakage or incarceration. No optimal treatment has been established, and existing methods using mesh repair are associated with high recurrence rates and a considerable risk for short- and long-term complications including death. A double-layer intraperitoneal on-lay mesh (IPOM), the Parastomal Hernia Patch (BARD™), consisting of ePTFE and polypropylene, has been developed and tailored to avoid recurrence. To evaluate the safety of and recurrence rate using this mesh, a nonrandomised prospective multicentre study was performed. Method. Fifty patients requiring surgery for parastomal hernia were enrolled. Clinical examination and CT scan prior to surgery were performed. All patients were operated on using the Parastomal Hernia Patch (BARD). Postoperative follow-up at one month and one year was scheduled to detect complications and hernia recurrence. Results. The postoperative complication rate at one month was 15/50 (30%). The parastomal hernia recurrence rate at one year was 11/50 (22%). The reoperation rate at one month was 7/50 (14%), and further 5/50 (10%) patients were reoperated on during the following eleven months.

  • 34.
    Näsvall, Pia
    et al.
    Department of Surgery, Sunderby Hospital, Luleå, Sweden.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Rutegård, Jörgen
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Reply to 'Preventing parastomal herniation in 2014 and beyond'2014Ingår i: Colorectal Disease, ISSN 1462-8910, E-ISSN 1463-1318, Vol. 16, nr 10, s. 831-832Artikel i tidskrift (Refereegranskat)
  • 35.
    Näsvall, Pia
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi. Department of Surgery, Sunderby Hospital/Umeå University, 97180, Luleå, Sweden .
    Wikner, F
    Umeå universitet, Medicinska fakulteten, Institutionen för strålningsvetenskaper.
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Rutegård, Jörgen
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    A comparison between intrastomal 3D ultrasonography, CT scanning and findings at surgery in patients with stomal complaints2014Ingår i: International Journal of Colorectal Disease, ISSN 0179-1958, E-ISSN 1432-1262, Vol. 29, nr 10, s. 1263-1266Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    PURPOSE: Since there are no reliable investigative tools for imaging parastomal hernia, new techniques are needed. The aim of this study was to assess the validity of intrastomal three-dimensional ultrasonography (3D) as an alternative to CT scanning for the assessment of stomal complaints.

    METHOD: Twenty patients with stomal complaints, indicating surgery, were examined preoperatively with a CT scan in the supine position and 3D intrastomal ultrasonography in the supine and erect positions. Comparison with findings at surgery, considered to be the true state, was made.

    RESULTS: Both imaging methods, 3D ultrasonography and CT scanning, showed high sensitivity (ultrasound 15/18, CT scan 15/18) and specificity (ultrasound 2/2, CT scan 1/2) when judged by a dedicated radiologist. Corresponding values for interpretation of CT scans in routine clinical practice was for sensitivity 17/18 and for specificity 1/2.

    CONCLUSION: 3D ultrasonography has a high validity and is a promising alternative to CT scanning in the supine position to distinguish a bulge from a parastomal hernia.

  • 36.
    Näverlo, Simon
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap.
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap.
    Long distance to hospital is not a risk factor for non-reversal of a defunctioning stoma2019Ingår i: International Journal of Colorectal Disease, ISSN 0179-1958, E-ISSN 1432-1262, Vol. 34, nr 6, s. 993-1000Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    PURPOSE: To see if road distance to hospital influences stoma reversal rate, time from index operation to stoma reversal, and occurrence of permanent stoma.

    METHODS: Data from all diagnosed cases of rectal cancer from three counties in northern Sweden were extracted from the Swedish Rectal Cancer Registry. The three counties are sparsely populated, with a population density roughly one fifth the average density in Sweden. Distances to nearest, operating, and largest hospital were obtained using Google Maps™. Matched data on socioeconomic variables were retrieved from Statistics Sweden.

    RESULTS: In univariate logistic regression analysis, patients living closer to the operating hospital had a higher likelihood of non-reversal than those living farther away (OR 0.3; 95% CI 0.12-0.76). However, no difference was seen in the multivariate analysis. Of the 717 cases included, 54% received a permanent stoma and 38% a defunctioning stoma at index surgery. The reversal rate of a defunctioning stoma was 83%. At follow-up, 61% still had a stoma, 89% of these were permanent, and 11% non-reversed defunctioning stomas. Median time to stoma reversal was 287 days (82-1557 days). Of all 227 stoma reversals, 77% were done more than 6 months after index surgery.

    CONCLUSIONS: Longer distance to hospital is not a risk factor for non-reversal of a defunctioning stoma. Only 23% had their defunctioning stoma reversed within 6 months after index surgery. Future studies aiming to determine reversal rate need to extend their follow-up time in order to receive accurate results.

  • 37.
    Odensten, Christoffer
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap. Sunderby Research Unit, Umeå University, Umeå, Sweden; Department of Surgery, Sunderby sjukhus, Luleå, Sweden.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap.
    Dahlberg, Mikael
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap. Sunderby Research Unit, Umeå University, Umeå, Sweden .
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap.
    Näsvall, Pia
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap. Sunderby Research Unit, Umeå University, Umeå, Sweden .
    Parastomal Hernia Repair; Seldom Performed and Seldom Reported: Results From a Nationwide Survey2018Ingår i: Scandinavian Journal of Surgery, ISSN 1457-4969, E-ISSN 1799-7267, artikel-id 1457496918818984Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    BACKGROUND: Parastomal hernia is common, but there are few population-based studies showing the frequency and outcome of parastomal hernia repair in routine surgical practice. The aim of this study was to identify patients undergoing surgery for parastomal hernia in Sweden and to define risk factors for complication and recurrence.

    METHODS: A broad search of the Swedish National Patient Register 1998-2007 for all possible parastomal hernia repairs using surgical procedure codes. Records of all patients identified were reviewed and those with a definite parastomal hernia procedure were included and analyzed.

    RESULTS: A total of 71 patients were identified after review of the records. The most common reason for surgery was cosmetic and the most frequent method was relocation of the stoma. Parastomal hernia recurrence rate was 18% during follow-up of a minimum 2 years. Overall, a surgical complication occurred in 32%. Possible risk factors were analyzed including emergency surgery versus planned, gender, age, indication for surgery, and method of surgery; none of which was significant.

    CONCLUSION: The frequency of parastomal hernia procedures was much lower than suggested by previous studies. The number of procedures per surgeon was even lower than expected. No specific risk factor could be identified. Parastomal hernia auditing in the form of a nationwide quality register should be mandatory. Centralization should be considered.

  • 38.
    Odensten, Christoffer
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Rutegård, Jörgen
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Dahlberg, Michael
    Ståhle, Ulrika
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Näsvall, Pia
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Response to: "Follow-up of the STOMAMESH Cohort"2018Ingår i: Annals of Surgery, ISSN 0003-4932, E-ISSN 1528-1140, Vol. 268, nr 2, s. e31-e31Artikel i tidskrift (Refereegranskat)
  • 39.
    Odensten, Christoffer
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Rutegård, Jörgen
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Dahlberg, Michael
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Ståhle, Ulrika
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Näsvall, Pia
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Response to: "Prophylactic Mesh for the Prevention of Parastomal Hernias: Need for a Deep Dive"2018Ingår i: Annals of Surgery, ISSN 0003-4932, E-ISSN 1528-1140, Vol. 268, nr 2, s. E30-E30Artikel i tidskrift (Refereegranskat)
  • 40.
    Odensten, Christoffer
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap. Sunderby Research Unit, Umeå University, Luleå, Sweden.
    Strigård, Karin
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap.
    Rutegård, Jörgen
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap.
    Dahlberg, Michael
    Ståhle, Ulrika
    Gunnarsson, Ulf
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap.
    Näsvall, Pia
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap. Sunderby Research Unit, Umeå University, Luleå, Sweden.
    Use of prophylactic mesh when creating a colostomy does not prevent parastomal hernia: a randomized controlled trial—STOMAMESH2019Ingår i: Annals of Surgery, ISSN 0003-4932, E-ISSN 1528-1140, Vol. 269, nr 3, s. 427-431Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Objective: The aim of this study was to determine whether parastomal hernia (PSH) rate can be reduced by using synthetic mesh in the sublay position when constructing permanent end colostomy. The secondary aim was to investigate possible side-effects of the mesh.

    Background: Prevention of PSH is important as it often causes discomfort and leakage from stoma dressing. Different methods of prevention have been tried, including several mesh techniques. The incidence of PSH is high; up to 78%.

    Methods: Randomized controlled double-blinded multicenter trial. Patients undergoing open colorectal surgery, including creation of a permanent end colostomy, were randomized into 2 groups, with and without mesh. A lightweight polypropylene mesh was placed around the colostomy in the sublay position. Follow up after 1 month and 1 year. Computerized tomography and clinical examination were used to detect PSH at the 1-year follow up. Data were analyzed on an intention-to-treat basis.

    Results: After 1 year, 211 of 232 patients underwent clinical examination and 198 radiologic assessments. Operation time was 36 minutes longer in the mesh arm. No difference in rate of PSH was revealed in the analyses of clinical (P = 0.866) and radiologic (P = 0.748) data. There was no significant difference in perioperative complications.

    Conclusions: The use of reinforcing mesh does not alter the rate of PSH. No difference in complication rate was seen between the 2 arms. Based on these results, the prophylactic use of mesh to prevent PSH cannot be recommended.

  • 41. Olsson, Tomas
    et al.
    Strigård, Karin
    Division of Surgery, CLINTEC, Karolinska Institutet, Department of Surgical Gastroenterology, Karolinska University Hospital, Huddinge, Sweden.
    Larsson, Per
    Holmdahl, Rikard
    Klareskog, Lars
    Effects on experimental allergic neuritis in rats by in vivo treatment with monoclonal anti-T-cell antibodies.1988Ingår i: Annals of the New York Academy of Sciences, ISSN 0077-8923, E-ISSN 1749-6632, Vol. 540, s. 560-562Artikel i tidskrift (Refereegranskat)
  • 42.
    Renman, David
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Kirurgi.
    Lundberg, Erik