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KMID : 0371420180950040169
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Annals of Surgical Treatment and Research
2018 Volume.95 No. 4 p.169 ~ p.174
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Colonoscopy learning curves for colorectal surgery fellow trainees: experiences with the 15-year colonoscopy training program
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Oh Jung-Ryul
Han Kyung-Su
Hong Chang-Won
Kim Byung-Chang
Kim Bun
Park Sung-Chan
Kim Min-Jung
Lee Sang-Jae
Oh Jae-Hwan
Shin Chang-Ha
Sohn Dae-Kyung
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Abstract
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Purpose: This study aimed to analyze the learning curves for colorectal surgery fellows in a colonoscopy training program.
Methods: Between May 2003 and February 2017, 60 surgical fellows joined our 1-year colonoscopy training program as trainees and performed 43,784 cases of colonoscopy. All trainees recorded their colonoscopy experiences prospectively into the database. After excluding 6 trainees, who had experience with performing more than 50 colonoscopies before participating in our training program or who discontinued our training program with experience performing less than 300 colonoscopies, this study included 54 trainees who had performed 39,539 colonoscopy cases. We analyzed the cecal intubation rate (CIR) and cecal intubation time (CIT) using the cumulative sum (Cusum) technique and moving average method to assess the technical colonoscopy competence.
Results: Overall, the CIR by the trainees was 80.7%. The median number of cases of colonoscopy performed during the training period for each trainee was 696 (range, 322?1,669). The trainees were able to achieve a 90% CIR with 412 and 493 procedures when analyzed using the moving average and the Cusum, respectively. Using the moving average method, CIRs after 150, 300, and 400 procedures were 67.0%, 84.1%, and 89.2%, respectively. The CIT of trainees continuously decreased until 400 successful cases. Median CITs were 9.4, 8.3, and 7.4 minutes at 150, 300, and 400 successful cases, respectively.
Conclusion: We found that more than 400 cases of experience were needed for technical competence in colonoscopy. Continuous teaching and monitoring is required until trainees become sufficiently competent.
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KEYWORD
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Colonoscopy, Learning curve, Training, Surgery
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