4.7 Article

Learning curves in laparoscopic distal pancreatectomy: a different experience for each generation

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INTERNATIONAL JOURNAL OF SURGERY
卷 109, 期 6, 页码 1648-1655

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LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/JS9.0000000000000408

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different generations; laparoscopic distal pancreatectomy; learning curve; outcomes; risk-adjusted cumulative sum analysis

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This study compared the learning curves and outcomes of laparoscopic distal pancreatectomy (LDP) between self-taught and trained surgeons. The learning curves of trained surgeons were at least halved compared to self-taught surgeons, with lower operative time and complication rates.
Background: Learning curves of laparoscopic distal pancreatectomy (LDP) are mostly based on self-taught' surgeons who acquired sufficient proficiency largely through self-teaching. No learning curves have been investigated for trained' surgeons who received training and built on the experience of the self-taught' surgeons. This study compared the learning curves and outcome of LDP between self-taught' and trained' surgeons in terms of feasibility and proficiency using short-term outcomes. Materials and methods: Data of consecutive patients with benign or malignant disease of the left pancreas who underwent LDP by four self-taught' and four trained' surgeons between 1997 and 2019 were collected, starting from the first patient operated by a contributing surgeon. Risk-adjusted cumulative sum (RA-CUSUM) analyses were performed to determine phase-1 feasibility (operative time) and phase-2 proficiency (major complications) learning curves. Outcomes were compared based on the inflection points of the learning curves. Results: The inflection points for the feasibility and proficiency learning curves were 24 and 36 procedures for trained' surgeons compared to 64 and 85 procedures for self-taught' surgeons, respectively. In trained' surgeons, operative time was reduced after completion of the learning curves (230.5-203 min, P = 0.028). In self-taught' surgeons, operative time (240-195 min, P < 0.001), major complications (20.6-7.8%, P = 0.008), and length of hospital stay (9-5 days, P < 0.001) reduced after completion of the learning curves. Conclusion: This retrospective international cohort study showed that the feasibility and proficiency learning curves for LDP of trained' surgeons were at least halved as compared to self-taught' surgeons.

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