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An important issue in colonoscopy training is how to measure the detection abilities of trainees. In a recent study conducted at a single hospital in California, trainees had their adenoma miss rates measured by tandem colonoscopy. A total of 218 patients underwent a colonoscopy performed by a trainee and then a second colonoscopy performed by an attending endoscopist.
The unassisted cecal intubation rate for the trainees was 70% overall, ranging from 43% for those who had conducted fewer than 100 colonoscopies to ≥90% after 250 examinations. The overall adenoma detection rate was 54%. For the 147 patients who had complete withdrawals performed by both the trainee and the attending physician, the trainees had an overall adenoma miss rate of …