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Learning curve for laparoscopic major hepatectomy.

T Nomi1, D Fuks, Y Kawaguchi

  • 1Department of Digestive Disease, Institut Mutualiste Montsouris, Université Paris-Descartes, 42 Boulevard Jourdan, 75014 Paris, France.

The British Journal of Surgery
|April 16, 2015
PubMed
Summary
This summary is machine-generated.

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Laparoscopic major hepatectomy (LMH) learning involves three phases, with proficiency achieved after 45-75 cases. This study evaluated the learning curve for LMH using cumulative sum analysis.

Area of Science:

  • Hepatopancreatobiliary Surgery
  • Minimally Invasive Surgery
  • Surgical Education

Background:

  • Laparoscopic major hepatectomy (LMH) is an increasingly adopted surgical technique.
  • Evaluating the learning curve is crucial for establishing proficiency in LMH.
  • This single-center study assessed the learning curve for LMH.

Purpose of the Study:

  • To evaluate the learning curve for laparoscopic major hepatectomy (LMH).
  • To identify distinct phases of surgical skill acquisition in LMH.
  • To determine the number of cases required to achieve proficiency in LMH.

Main Methods:

  • Prospective data collection for 173 patients undergoing LMH from 1998 to 2013.
  • Analysis of operating time (OT) using the cumulative sum (CUSUM) method to model the learning curve.

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  • Multivariable analysis to identify factors associated with conversion to open procedures.

    • Main Results:

    • The CUSUM analysis revealed a parabolic learning curve for operating time, indicating three distinct phases.
    • Phase 1 (45 patients), Phase 2 (30 patients), and Phase 3 (98 patients) were identified.
    • Vascular clamping was significantly associated with conversion to open surgery (HR 5.95, P=0.026).

    Conclusions:

    • The learning curve for LMH comprises three phases, identifiable through CUSUM analysis.
    • Proficiency in LMH is suggested to be achieved within 45 to 75 cases.
    • The study highlights the importance of structured learning and experience in mastering complex laparoscopic procedures.