Laparoscopic Cholecystectomy in the Second Trimester

Explanation

This patient has symptomatic cholelithiasis, that is recurrent biliary colic, and she is already at 20 weeks gestation, which places her squarely in the second trimester. The second trimester is the safest period to operate during pregnancy because organogenesis is complete, the miscarriage rate has fallen and the uterus has not yet enlarged enough to interfere with port placement or laparoscopic exposure. Laparoscopy is preferred over laparotomy in pregnancy because it produces less postoperative pain, less ileus, earlier mobilisation and a lower risk of wound and thromboembolic complications for the mother, with no demonstrated excess fetal risk when intra-abdominal pressure and end-tidal carbon dioxide are kept controlled. Conservative treatment is unattractive because pregnancy accelerates gallstone disease and recurrent attacks carry a substantial risk of acute cholecystitis, choledocholithiasis or gallstone pancreatitis later in the pregnancy, when surgery would be far riskier. Her soft non-tender abdomen and absence of fever indicate uncomplicated biliary colic rather than acute cholecystitis, so there is no infected gallbladder to drain. Gallbladder drainage procedures are reserved for infected, undrained gallbladders in patients unfit for surgery. The correct plan is therefore a planned laparoscopic cholecystectomy now, during the second trimester. Fetal heart monitoring before and after the procedure and perioperative thromboprophylaxis are standard adjuncts.

Why each option

A.

A cholecystostomy tube drains an infected obstructed gallbladder; there is no fever, tenderness or wall thickening here, so there is nothing to drain and the gallstones would remain.

B.

An open approach is unnecessarily morbid when laparoscopy is safe and standard in the second trimester, giving less pain and faster recovery.

C.

Correct. She is symptomatic and in the second trimester, the optimal operative window, so laparoscopic cholecystectomy now is both safe and definitive.

D.

Deferring surgery leaves her at high risk of acute cholecystitis, choledocholithiasis or gallstone pancreatitis in the third trimester, when any operation is technically harder and more likely to provoke preterm labour.

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