Adequate bowel preparation is of paramount importance for the effectiveness of preventive colonoscopy as it allows visualization of the mucosal surface and adenomas detection, the pre-malignant lesions leading to colon cancer. Still, a considerable portion of patients fail to achieve adequate bowel cleansing, with predictors of inadequate bowel preparation being at the focal point of several studies, so far. Incorporation of these factors within predictive models has been implemented in an effort to promptly identify patients at risk for inadequate bowel preparation and thus, timely adopt practices that have the potential to improve bowel cleansing. Ultimately, this could lead to improved procedural outcomes not only in terms of neoplastic detection rate but also interval repeat procedures, expenses, patient convenience and adverse events risk. Aim of this manuscript is to present an up to date overview of all predictive scores/models addressing bowel cleansing adequacy in everyday clinical practice.

充分的肠道准备对于预防性结肠镜检查的有效性至关重要，因为它可以使粘膜表面可视化并检测腺瘤（导致结肠癌的癌前病变）。尽管如此，仍有相当一部分患者未能实现充分的肠道清洁，迄今为止，肠道准备不足的预测因素是多项研究的焦点。将这些因素纳入预测模型中是为了及时识别存在肠道准备不足风险的患者，从而及时采取有可能改善肠道清洁的做法。最终，这不仅可以改善肿瘤检出率，还可以改善间隔重复手术、费用、患者便利性和不良事件风险。本手稿的目的是提供有关日常临床实践中肠道清洁充分性的所有预测评分/模型的最新概述。