ASGE指南：结肠镜检查前的肠道准备

Colonoscopy is the current standard method for imaging the mucosa of the entire colon. Large-scale reviews have shown rates of incomplete colonoscopy, defined as the inability to achieve cecal intubation and mucosal visualization effectively, between 10% and 20%,well over targets recommended by the U.S. Multi-Society Task Force on Colorectal Cancer.The diagnostic accuracy and therapeutic safety of colonoscopy depends, in part, on the quality of the colonic cleansing or preparation.Inadequate bowel preparation can result in failed detection of prevalent neoplastic lesions and has been linked to an increased risk of procedural adverse events. Sidhu et al performed an audit of all colonoscopies performed between April 2005 and 2010 at the Royal Liverpool University. Of the 8910 colonoscopies performed, 693 were incomplete (7.8%; 58% women; mean age, 61 years), and inadequate bowel preparation was the most common reason for incomplete colonoscopy, accounting for nearly 25% of failed colonoscopies in their series.