Obesity Surgery

, Volume 25, Issue 7, pp 1171–1176

Incidence of Gallstone Formation and Cholecystectomy 10 Years After Bariatric Surgery

  • Andreas Melmer
  • Wolfgang Sturm
  • Bernhard Kuhnert
  • Julia Engl-Prosch
  • Claudia Ress
  • Alexander Tschoner
  • Markus Laimer
  • Elisabeth Laimer
  • Matthias Biebl
  • Johann Pratschke
  • Herbert Tilg
  • Christoph Ebenbichler
Original Contributions

Abstract

Purpose

Rapid weight loss is a risk factor for gallstone formation, and postoperative treatment options for gallstone formation are still part of scientific discussion. No prospective studies monitored the incidence for gallstone formation and subsequent cholecystectomy after bariatric surgery longer than 5 years. The aim of the study was to determine the incidence of gallstone formation and cholecystectomy in bariatric patients over 10 years.

Materials and methods

One hundred nine patients were observed over 10 years after laparoscopic gastric banding or gastric bypass/gastric sleeve. The incidence of gallstone formation and cholecystectomy was correlated to longitudinal changes in anthropometric parameters.

Results

In total, 91 female and 18 male patients were examined. Nineteen patients had postoperative gallstone formation, and 12 female patients required cholecystectomy. The number needed to harm for gallstone formation was 7.1 and 2.3 cases in the banding group and gastric bypass/gastric sleeve group, respectively. The number needed to harm for cholecystectomy was 11.6 and 2.5 cases in the banding group and the gastric bypass/gastric sleeve group, respectively. Weight loss was higher in patients requiring subsequent cholecystectomy. Mean follow-up to cholecystectomy was 21.5 months with the latest operation after 51 months.

Conclusion

Female gender and rapid weight loss were major risk factors for postoperative cholelithiasis. Ultrasound examinations within 2 to 5 years are recommended in every patient, independent of bariatric procedure. Pharmacologic treatment should be considered in high risk patients within 2 to 5 years to prevent postoperative cholelithiasis. This helps to optimize patient care and lowers postoperative morbidity.

Keywords

Gallstone formation Bariatric surgery Cholecystectomy Obesity Weight loss 

Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Andreas Melmer
    • 1
  • Wolfgang Sturm
    • 1
  • Bernhard Kuhnert
    • 1
  • Julia Engl-Prosch
    • 1
  • Claudia Ress
    • 1
  • Alexander Tschoner
    • 1
  • Markus Laimer
    • 1
  • Elisabeth Laimer
    • 2
  • Matthias Biebl
    • 3
  • Johann Pratschke
    • 3
  • Herbert Tilg
    • 1
  • Christoph Ebenbichler
    • 1
  1. 1.Department of Internal Medicine IMedical University of InnsbruckInnsbruckAustria
  2. 2.Department of General, Thoracic and Transplant SurgeryMedical University of InnsbruckInnsbruckAustria
  3. 3.Department for General, Visceral and Transplantation SurgeryUniversity Hospital ChariteBerlinGermany

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