Predictive factors for conversion of laparoscopic cholecystectomy

Area of Science:

• Gastroenterology
• Surgical Oncology
• Medical Diagnostics

Background:

• Laparoscopic cholecystectomy (LC) is standard for symptomatic cholelithiasis.
• Predicting conversion to open cholecystectomy (OC) aids patient preparation and resource allocation.
• Identifying reliable preoperative indicators for LC conversion is crucial.

Purpose of the Study:

• To identify preoperative indicators that predict conversion from LC to OC.
• To analyze factors influencing the need for open conversion during cholecystectomy.

Main Methods:

• Retrospective analysis of 783 patients undergoing attempted LC between June 1990 and December 1995.
• Evaluation of various patient demographics, clinical findings, laboratory results, and imaging.
• Multivariate logistic regression analysis to determine significant predictors of conversion.

Main Results:

• Conversion to OC was required in 7.4% of cases (58 patients).
• Univariate analysis identified acute cholecystitis, abdominal rigidity, fever, thickened gallbladder wall, elevated alkaline phosphatase (ALP), transaminases, and white blood cell (WBC) count as significant.
• Multivariate analysis confirmed acute cholecystitis (OR=3.12), thickened gallbladder wall (OR=3.75), elevated ALP (OR=2.23), and WBC count (OR=3.69) as jointly significant predictors.

Conclusions:

• Preoperative indicators like acute cholecystitis, thickened gallbladder wall on ultrasound, elevated ALP, and high WBC count are valuable for predicting LC to OC conversion.
• These findings can improve surgical planning and patient management for cholelithiasis.
• Accurate prediction of conversion reduces operative surprises and optimizes surgical outcomes.