Abstract
| Surgical Rates for Crohn's Disease are Decreasing: A Population-Based Time Trend Analysis and Validation Study Ma C1, Moran GW2, Benchimol EI3,4, Targownik LE5, Heitman SJ1, Hubbard JN1, Seow CH1, Novak KL1, Ghosh S6, Panaccione R1, Kaplan GG1. Am J Gastroenterol. 2017 Oct 31. doi: 10.1038/ajg.2017.394. [Epub ahead of print] |
| Author information 1 Division of Gastroenterology, University of Calgary, Calgary, Alberta, Canada. 2 National Institute of Health Research Biomedical Research Centre in Gastrointestinal and Liver Diseases, Nottingham University Hospitals NHS Trust and the University of Nottingham, Queens Medical Centre Campus, Nottingham University Hospitals NHS Trust, Nottingham, UK. 3 Children's Hospital of Eastern Ontario Inflammatory Bowel Disease Centre, Department of Pediatrics, School of Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, Ontario, Canada. 4 Institute for Clinical Evaluative Sciences, Ottawa, Ontario, Canada. 5 Section of Gastroenterology, Division of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada. 6 Institute of Translational Medicine, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK. Abstract OBJECTIVES: Temporal changes for intestinal resections for Crohn's disease (CD) are controversial. We validated administrative database codes for CD diagnosis and surgery in hospitalized patients and then evaluated temporal trends in CD surgical resection rates. METHODS: First, we validated International Classification of Disease (ICD)-10-CM coding for CD diagnosis in hospitalized patients and Canadian Classification of Health Intervention coding for surgical resections. Second, we used these validated codes to conduct population-based surveillance between fiscal years 2002 and 2010 to identify adult CD patients undergoing intestinal resection (n=981). Annual surgical rate was calculated by dividing incident surgeries by estimated CD prevalence. Time trend analysis was performed and annual percent change (APC) with 95% confidence intervals (CI) in surgical resection rates were calculated using a generalized linear model assuming a Poisson distribution. RESULTS: In the validation cohort, 101/104 (97.1%) patients undergoing surgery and 191/200 (95.5%) patients admitted without surgery were confirmed to have CD on chart review. Among the 116 administrative database codes for surgical resection, 97.4% were confirmed intestinal resections on chart review. From 2002 to 2010, the overall CD surgical resection rate was 3.8 resections per 100 person-years. During the study period, rate of surgery decreased by 3.5% per year (95% CI: -1.1%, -5.8%), driven by decreasing emergent operations (-10.1% per year (95% CI: -13.4%, -6.7%)) whereas elective surgeries increased by 3.7% per year (95% CI: 0.1%, 7.3%). CONCLUSIONS: Overall surgical resection rates in CD are decreasing, but a paradigm shift has occurred whereby elective operations are now more commonly performed than emergent surgeries. |
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