Gallbladder Nonvisualization in Cholecystectomy: A Factor for Conversion

Area of Science:

• Surgical Innovation
• Minimally Invasive Surgery
• Patient Safety

Background:

• Minimally invasive cholecystectomies have known risk factors for complications and conversion.
• Nonvisualization of the gallbladder (GB) during surgery has not been previously identified as a specific risk factor.

Purpose of the Study:

• To investigate if intraoperative nonvisualization of the GB is associated with increased complications and conversion rates.
• To determine if nonvisualization can serve as an early indicator for higher-risk procedures.

Main Methods:

• Retrospective review of minimally invasive cholecystectomies from January 2015 to April 2016.
• Surgeons completed post-operative surveys detailing intraoperative findings.
• Analysis of outcomes including conversion rates, intraoperative complications, and estimated blood loss (EBL).

Main Results:

• Conversion rate was 37% in cases with nonvisualized GBs versus 0% in visualized GBs (P = .001).
• Significantly higher rates of GB perforations (74% vs 13%), omental vessel bleeding (16% vs 0%), and EBL (46 mL vs 29 mL) were observed with nonvisualization (P = .001).

Conclusions:

• Intraoperative nonvisualization of the GB is a significant risk factor for complications and conversion in minimally invasive cholecystectomy.
• Recognizing nonvisualization can aid surgeons in early conversion to open surgery, improving patient safety.
• Further randomized controlled trials are recommended to validate these findings.