Learning curve and patient outcomes in gallstone surgery: a national register-based cohort study - Summary - MDSpire

Patient Outcomes and the Learning Curve in Gallbladder Surgery: Insights from a National Registry-Based Study

  • By

  • Nathalie Young

  • Lars Enochsson

  • Hans Pettersson

  • Peter Elbe

  • Ninos Oussi

  • Gabriel Sandblom

  • July 20, 2026

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Objective:

To explore the correlation between surgical volume and patient outcomes in laparoscopic cholecystectomy in Sweden.

Approach:
  • Study Design: Retrospective observational cohort study using data from the GallRiks registry covering over 90% of cholecystectomies in Sweden from 2006 to 2022.
  • Data Collection: Collected variables included patient demographics, surgical technique, ASA classification, and procedure outcomes.
  • Analysis Methods: Multivariable logistic regression for complications and linear regression for operation time, stratified by increments of 50 procedures.
Key Findings:
  • 139,010 cholecystectomies performed by 1664 surgeons were analyzed.
  • Mean operation time decreased with increased surgical volume, from 111 min to 75 min after 800 procedures.
  • Laparoscopic cholecystectomy was faster than open surgery, with acute cases taking longer than elective cases.
Interpretation:

Limitations:
  • Study excluded surgeons with 2000 or more procedures prior to data collection.
  • The formal position of the surgeon was not analyzed, focusing only on accumulated procedure counts.
Conclusion:

Increased surgical volume correlates with reduced operation time in laparoscopic cholecystectomy.

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