and Cecal Intubation: A Meta-Analysis of Randomized Controlled Trials. Posted by zedie — 08/05/2012 0 The role of cap-assisted colonoscopy (CAC) in polyp detection and cecal intubation is unclear. We conducted a meta-analysis to compare the efficacy of CAC vs. standard colonoscopy (SC) . METHODS: Publications in English and non-English literatures (OVID,