结肠镜检查和治疗是消化科最重要的诊疗手段之一,但结肠镜检查具有侵入性,再操作中由于肠痉挛、人为肠袢等因素给患者带来难以忍受的痛苦和恐惧,使部分患者拒绝接受结肠镜检查,部分患者无法耐受而导致检查和治疗中断,极少数患者可能诱发心肌梗死、脑卒中等严重并发症。近期笔者 Colonoscopy and treatment is one of the most important diagnosis and treatment of digestive diseases, but colonoscopy is invasive, re-operation due to intestinal cramps, artificial intestinal bowel and other factors to bring unbearable pain and fear to patients, so that some patients Refused to accept colonoscopy, some patients can not tolerate and lead to interruption of the examination and treatment, a very small number of patients may induce myocardial infarction, stroke and other serious complications. Recent author