Symptomatic Gallstones in Pregnancy: Timing of Surgery
A 31-year-old woman at 10 weeks gestation has had four separate attacks of right upper quadrant pain after fatty meals over the past five weeks, each lasting about three hours. She is afebrile, her abdomen is non-tender, and ultrasound shows multiple gallstones without wall thickening. Which is the most appropriate management plan?
- A.Laparoscopic cholecystectomy in the third trimester
- B.Laparoscopic cholecystectomy after delivery
- C.Immediate laparoscopic cholecystectomy
- D.Laparoscopic cholecystectomy in the second trimesterCorrect
Explanation
This woman has recurrent biliary colic from gallstones, which is active symptomatic disease rather than an incidental finding. Pregnancy itself worsens gallstone disease because progesterone reduces gallbladder motility and oestrogen increases biliary cholesterol saturation, so recurrent attacks predict complications such as acute cholecystitis, choledocholithiasis and gallstone pancreatitis. Definitive treatment by cholecystectomy is therefore indicated during the pregnancy rather than after it. The timing is what the question tests. The first trimester is the period of organogenesis, with a higher background risk of miscarriage and theoretical teratogenicity from anaesthesia, so elective surgery is avoided unless the condition is life threatening. The second trimester, roughly weeks 14 to 26, is the accepted safest window because organogenesis is complete, the miscarriage risk has fallen and the uterine fundus is still low enough to allow safe port placement and adequate laparoscopic exposure. In the third trimester the enlarged uterus obscures the operative field and manipulation increases the risk of preterm labour. She should therefore be managed conservatively with analgesia and a low-fat diet for a few weeks and then undergo planned laparoscopic cholecystectomy in the second trimester.
Why each option
- A.
- The gravid uterus in the third trimester obstructs laparoscopic exposure and surgery carries an increased risk of preterm labour, making this the poorest timing.
- B.
- Waiting until after delivery leaves her exposed for many months to acute cholecystitis, choledocholithiasis or gallstone pancreatitis, any of which would demand emergency surgery under far worse conditions.
- C.
- Operating now means operating during organogenesis, when the fetal loss rate and theoretical anaesthetic teratogenic risk are highest; this is only justified for an emergency such as gangrenous cholecystitis or perforation.
- D.
- Correct. The second trimester is the safest operative window in pregnancy, and definitive cholecystectomy prevents the serious complications that recurrent biliary colic predicts.
Reference: SAGES Guidelines for the Use of Laparoscopy during Pregnancy, 2017; UpToDate 2025, Gallstone disease in pregnancy
This is one of 3,306 questions in the MedBoardSA SMLE bank, with timed test mode, tutor mode, and progress tracking by topic.
Practise the full bank