Nett Andrew, Velayos Fernando, McQuaid Kenneth
Department of Medicine, University of California, San Francisco, 513 Parnassus Avenue, Room S-357, San Francisco, CA 94143, USA.
Department of Medicine, San Francisco VA Medical Center, University of California, San Francisco, 4150 Clement Street, Room 111-B, San Francisco, CA 94121, USA.
Gastrointest Endosc Clin N Am. 2014 Jul;24(3):379-92. doi: 10.1016/j.giec.2014.03.004. Epub 2014 May 6.
Colonoscopy is routinely performed in patients with inflammatory bowel disease (IBD) for surveillance of dysplasia. Thorough bowel preparation is necessary to facilitate lesion detection. Patients with IBD do not have poorer bowel preparation outcomes but may have decreased preparation tolerance affecting adherence to surveillance protocols. A low-fiber prepreparation diet may improve preparation tolerance without affecting preparation quality. The standard preparation regimen should consist of split-dose administration of a polyethylene glycol-based purgative. Low-volume, hyperosmolar purgatives may be considered in patients with previous preparation intolerance, heightened anxiety, stenotic disease, or dysmotility. Appropriate patient education is critical to enhance preparation quality.
结肠镜检查在炎症性肠病（IBD）患者中常用于监测发育异常。彻底的肠道准备对于促进病变检测至关重要。IBD患者的肠道准备效果并不差，但可能对准备的耐受性降低，从而影响监测方案的依从性。低纤维预准备饮食可能会提高准备耐受性，而不影响准备质量。标准的准备方案应包括分剂量给予基于聚乙二醇的泻药。对于既往有准备不耐受、焦虑情绪高、狭窄性疾病或动力障碍的患者，可考虑使用小容量、高渗性泻药。适当的患者教育对于提高准备质量至关重要。
