Corinna Chiong1, Michael R Cox, Guy D Eslick. 1. The Whiteley-Martin Research Centre, Discipline of Surgery, The University of Sydney, Nepean Hospital, Level 5, South Block, P.O. Box 63, Penrith, NSW 2751, Australia.
Abstract
BACKGROUND: Increased levels of secondary bile acids after gallstone disease and cholecystectomy are believed to increase the risk of colorectal cancer. It remains unclear whether there is a similar risk of developing adenomas. The aim of this meta-analysis was to determine the risk of developing colonic adenomas following gallstone disease or cholecystectomy. METHODS: The study was based on a systematic search of PubMed, MEDLINE, EMBASE, and Current Contents (1950-2012). Selection criteria were developed to sort for studies exploring the relationship between cholelithiasis, cholecystectomy, and colonic adenoma in an adult population. A random-effects model was used to generate pooled odds ratios (OR) and 95 % confidence intervals (CI). Publication bias and heterogeneity were assessed. RESULTS: Of the 1,276 studies identified, 14 were suitable for final analysis. There were 253,059 subjects in total, 42,543 of whom were diagnosed with colonic adenoma, and 28,281 of whom had gallstones or underwent cholecystectomy. There was a significant risk of developing colonic adenoma if gallstones were present (OR = 2.26; 95 % CI = 1.83-2.81). A risk was also seen with cholecystectomy (OR = 1.15; 95 % CI = 1.04-1.26), but this risk was negated when only adjusted odds were selected (OR = 1.01; 95 % CI = 0.91-1.12). No publication bias and only low levels of heterogeneity existed. CONCLUSIONS: Gallstones increase the risk of colonic adenoma. No association exists with cholecystectomy.
BACKGROUND: Increased levels of secondary bile acids after gallstone disease and cholecystectomy are believed to increase the risk of colorectal cancer. It remains unclear whether there is a similar risk of developing adenomas. The aim of this meta-analysis was to determine the risk of developing colonic adenomas following gallstone disease or cholecystectomy. METHODS: The study was based on a systematic search of PubMed, MEDLINE, EMBASE, and Current Contents (1950-2012). Selection criteria were developed to sort for studies exploring the relationship between cholelithiasis, cholecystectomy, and colonic adenoma in an adult population. A random-effects model was used to generate pooled odds ratios (OR) and 95 % confidence intervals (CI). Publication bias and heterogeneity were assessed. RESULTS: Of the 1,276 studies identified, 14 were suitable for final analysis. There were 253,059 subjects in total, 42,543 of whom were diagnosed with colonic adenoma, and 28,281 of whom had gallstones or underwent cholecystectomy. There was a significant risk of developing colonic adenoma if gallstones were present (OR = 2.26; 95 % CI = 1.83-2.81). A risk was also seen with cholecystectomy (OR = 1.15; 95 % CI = 1.04-1.26), but this risk was negated when only adjusted odds were selected (OR = 1.01; 95 % CI = 0.91-1.12). No publication bias and only low levels of heterogeneity existed. CONCLUSIONS:Gallstones increase the risk of colonic adenoma. No association exists with cholecystectomy.
Authors: Georgios Polychronidis; Kai Wang; Chun-Han Lo; Liang Wang; Mingming He; Markus D Knudsen; Kana Wu; Amit D Joshi; Shuji Ogino; Edward L Giovannucci; Andrew T Chan; Mingyang Song Journal: Cancer Epidemiol Biomarkers Prev Date: 2021-10-07 Impact factor: 4.090
Authors: Sama Rezasoltani; Amir Sadeghi; Ebrahim Radinnia; Ali Naseh; Zahra Gholamrezaei; Mehdi Azizmohammad Looha; Abbas Yadegar Journal: Gastroenterol Hepatol Bed Bench Date: 2019