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Decentralized colonoscopic surveillance with high patient compliance prevents hereditary and familial colorectal cancer
Umeå University, Faculty of Medicine, Department of Radiation Sciences, Oncology.
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Epidemiology and Global Health.
Umeå University, Faculty of Medicine, Department of Radiation Sciences, Oncology.
Umeå University, Faculty of Medicine, Department of Radiation Sciences, Oncology.
2016 (English)In: Familial Cancer, ISSN 1389-9600, E-ISSN 1573-7292, Vol. 15, no 4, 543-551 p.Article in journal (Refereed) Published
Abstract [en]

Although colonoscopic surveillance is recommended both for individuals with known hereditary colorectal cancer (HCRC) syndromes and those with a more moderate familial colorectal cancer (FCRC) history, the evidence for the benefits of surveillance is limited and surveillance practices vary. This study evaluates the preventive effect for individuals with a family history of CRC of decentralized colonoscopic surveillance with the guidance of a cancer prevention clinic. We performed a population based prospective study of 261 patients with HCRC or FCRC, recorded in the colonoscopic surveillance registry at the Cancer genetics clinic, University Hospital of UmeAyen, Sweden. Colonoscopic surveillance was conducted every second (HCRC) or fifth (FCRC) year at local hospitals in Northern Sweden. Main outcome measures were findings of high-risk adenomas (HRA) or CRC, and patient compliance to surveillance. Estimations of the expected numbers of CRC without surveillance were made. During a total of 1256 person years of follow-up, one case of CRC was found. The expected numbers of cancers in the absence of surveillance was between 9.5 and 10.5, resulting in a standardized incidence ratio, observed versus expected cases of CRC, between 0.10 (CI 95 % 0.0012-0.5299) and 0.11 (CI 95 % 0.0014-0.5857). No CRC mortality was reported, but three patients needed surgical intervention. HRA were found in 5.9 % (14/237) of the initial and in 3.4 % (12/356) of the follow-up colonoscopies. Patient compliance to the surveillance program was 90 % as 597 of the planned 662 colonoscopies were performed. The study concludes that colonoscopic surveillance with high patient compliance to the program is effective in preventing CRC when using a decentralized method for colonoscopy surveillance with the guidance of a cancer prevention clinic.

Place, publisher, year, edition, pages
2016. Vol. 15, no 4, 543-551 p.
Keyword [en]
Colorectal cancer, Surveillance colonoscopy, Cancer prevention, Hereditary colorectal
National Category
Cancer and Oncology
Identifiers
URN: urn:nbn:se:umu:diva-126293DOI: 10.1007/s10689-016-9867-7ISI: 000382681500007PubMedID: 26935832OAI: oai:DiVA.org:umu-126293DiVA: diva2:1045005
Available from: 2016-11-08 Created: 2016-10-03 Last updated: 2016-11-08Bibliographically approved

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Lindholm, LarsTavelin, BjörnMelin, Beatrice
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