Optimal treatment strategies for gallbladder disease in pregnancy: a systematic review with dual network meta-analyses

Background: This study sought to determine the optimal treatment strategy and timing for cholecystectomy in managing gallbladder diseases during pregnancy. It evaluated the effectiveness of conservative management (CM), laparoscopic cholecystectomy (LC), and open cholecystectomy (OC) in pregnancy and compared cholecystectomy outcomes across three trimesters.

Methods: Studies comparing CM, LC, and OC or evaluating cholecystectomy outcomes across trimesters were included in a literature search until February 2024. Studies included were required to have at least 10 cases per treatment group and perform statistical comparisons. Two Bayesian network meta-analyses (NMAs) were conducted, and surface under cumulative ranking area (SUCRA) values, risk ratio (RR), mean difference (MD), and 95% credible intervals (CrIs) were calculated for outcomes of interest.

Results: Our study included 17 studies with 63,523 pregnant patients. The first NMA included data from 12 studies involving 29,052 pregnant women, revealing that LC had the lowest risk for preterm delivery, significantly lower than CM (RR: 0.23, 95% CrI: 0.07-0.55). LC also had a significantly reduced risk of fetal complications (RR: 0.42, 95% CrI: 0.16-0.57) and maternal complications (RR: 0.44, 95% CrI: 0.15-0.50) compared to OC. LC was associated with a significantly shorter length of stay than OC (MD: -2.77, 95% CrI: -8.37 to -2.87). The second NMA analyzed data from five population-based studies with 34,471 pregnant patients, finding no significant differences in preterm delivery and abortion rates across the three trimesters following cholecystectomy. Cholecystectomy performed in the third trimester significantly increased the risk of maternal complications, with relative risks compared to first (RR: 0.48, 95% CrI: 0.22-1.00) and second trimesters (RR: 0.42, 95% CrI: 0.21-0.93).

Conclusions: LC is deemed the optimal treatment for gallbladder diseases during pregnancy. While cholecystectomy is safe to be performed across all trimesters, careful deliberation is recommended during the third trimester due to an increased risk of maternal complications.