Background: Trainees learn colonoscopy skills at varying speeds. We hypothesized that a fellow's ability to reliably reach the splenic flexure early in training could predict the number of procedures required to achieve competency in intubating the cecum.
Methods: This was a retrospective analysis of prospectively collected data. The most proximal site in the colon reached independently by GI fellows was recorded on consecutive colonoscopies. The number of procedures required to achieve splenic flexure intubation rate (SFIR) ≥ 90 % by cumulative summation learning curve and cecal intubation rate (CIR) ≥ 90 % by rolling average was calculated. Fellows were then dichotomized into "Early" versus "Late" learners based on the median number of procedures required to achieve SFIR ≥ 90 %. The number of procedures required to achieve CIR ≥ 90 % was then compared between the groups.
Results: Fellows achieved SFIR ≥ 90 % at a median of 37 colonoscopies. Fellows who achieved SFIR competency early achieved CIR ≥ 90 % at a mean of 208 procedures versus 352 procedures in the fellows who achieved SFIR competency late (p = 0.03).
Conclusions: Data from a single academic medical center show that whether a trainee will learn endoscopy quickly compared to his/her peers can be predicted early in their endoscopy training by tracking SFIR. This knowledge could be used to customize endoscopy curriculum.
Keywords: CUSUM; Colonoscopy; Training.