The diagnostic yield and risk of screening colonoscopy in geriatric subjects older than 80 years

Abstract The aim of the study is to evaluate the diagnostic yield and risks of screening colonoscopy in octogenarians and older. A retrospective review of medical records in the Chang Gung Healthcare Center from January 2010 to December 2016 was performed. A total of 164 adults older than 80 years receiving screening colonoscopy were enrolled. Cecal intubation rate, colonoscopic finding, renal function, colon preparation, and procedure‐related complications were used to estimate the outcome of colonoscopy. All participants were under deep sedation. The crude cecal intubation rate was 95%. Acceptable colon preparation was 95.1%. No procedure‐related complications, such as bleeding or perforation, occurred in this study. The level of creatinine increasing more than 25% were two (6.3%) in polyethylene glycol group and 10 (16.1%) in oral sodium phosphate solution (NaP) group. The colonoscopic finding were as follows: 19 advanced neoplasms (11.5%), 56 non‐advanced adenomas (34.1%), and 38 hyperplastic polyps (23.2%). This study disclosed the diagnostic yield and safety of colonoscopy in octogenarians and older. In addition, we should be cautious when giving NaP to these subjects.