Predictors of prolonged laparoscopic cholecystectomy in the treatment of low‐grade acute cholecystitis: a single‐center, retrospective, observational study

Aim Laparoscopic cholecystectomy is frequently used to treat low-grade acute cholecystitis. Improvements in technical skills have reduced the rate of conversion from laparoscopic to open surgery. In this study, we sought to identify factors that might predict the surgical time of laparoscopic cholecystectomy as possible markers for surgical difficulty. Methods We carried out a single-center retrospective analysis of a Japanese medical insurance database. Data were retrieved for 87 patients with acute cholecystitis. The analyzed factors included age, sex, body mass index, medical history, blood laboratory data, computed tomography findings, and time from disease onset to surgery. Multiple regression analysis was used to identify factors associated with surgical time. Results Edema of the gallbladder wall on computed tomography, neutrophil sequestration, body mass index, and history of acute cholangitis were significantly associated with surgical time (P = 0.014, 0.027, 0.043, and 0.047, respectively). The conversion rate from laparoscopic surgery to open surgery was 2%. Conclusions Our results suggest that edema of the gallbladder wall on computed tomography, neutrophil sequestration, body mass index, and history of acute cholangitis are associated with surgical time of laparoscopic cholecystectomy in the treatment of acute cholecystitis in our hospital.