BACKGROUND: It has been demonstrated that prolonged colonoscopic withdrawal times (WT; >6 min) are beneficial for the adenoma detection rate (ADR) for experienced endoscopists. There are little data, however, to guide the appropriate colonoscopic withdrawal times for trainees. The purpose of this study was to determine whether there is a relationship between WTs and ADR for first-year fellows training in colonoscopy. METHODS: This is a prospective study of first-year gastroenterology fellows at a single academic teaching hospital who documented each colonoscopy with a self-report form over the course of an academic year (March 2010 to February 2011). The internal policy for the trainees was to have at least a 6-min withdrawal time for each colonoscopy. RESULTS: Four first-year fellows in gastroenterology at an academic medical center completed self-reports for 1,210 colonoscopies. Mean WT was 10.2 ± 3.4 min. The aggregate polyp detection rate was 33.2% and the aggregate ADR was 22.3%. For colonoscopies with WT < 10 min, ADR was 9.5%, and for colonoscopies with WT ≥ 10 min, ADR was 32.3% (p < 0.001). When the quality indicator of 25% goal ADR for males and 15% goal ADR for females is applied, this aggregate rate is achieved for both sexes for screening colonoscopies (n = 676) with WT ≥ 10 min. CONCLUSIONS: First-year trainees had a significantly higher ADR if their colonoscopic WT is ≥ 10 min.
BACKGROUND: It has been demonstrated that prolonged colonoscopic withdrawal times (WT; >6 min) are beneficial for the adenoma detection rate (ADR) for experienced endoscopists. There are little data, however, to guide the appropriate colonoscopic withdrawal times for trainees. The purpose of this study was to determine whether there is a relationship between WTs and ADR for first-year fellows training in colonoscopy. METHODS: This is a prospective study of first-year gastroenterology fellows at a single academic teaching hospital who documented each colonoscopy with a self-report form over the course of an academic year (March 2010 to February 2011). The internal policy for the trainees was to have at least a 6-min withdrawal time for each colonoscopy. RESULTS: Four first-year fellows in gastroenterology at an academic medical center completed self-reports for 1,210 colonoscopies. Mean WT was 10.2 ± 3.4 min. The aggregate polyp detection rate was 33.2% and the aggregate ADR was 22.3%. For colonoscopies with WT < 10 min, ADR was 9.5%, and for colonoscopies with WT ≥ 10 min, ADR was 32.3% (p < 0.001). When the quality indicator of 25% goal ADR for males and 15% goal ADR for females is applied, this aggregate rate is achieved for both sexes for screening colonoscopies (n = 676) with WT ≥ 10 min. CONCLUSIONS: First-year trainees had a significantly higher ADR if their colonoscopic WT is ≥ 10 min.
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