Cholecystectomy (Laparoscopic & Open)
What the Examiner Expects
Removal of the gallbladder, the most commonly performed abdominal operation. The critical view of safety (CVS) is the single most important concept: the hepatocystic triangle must be completely cleared of fat and fibrous tissue, only two structures should be seen entering the gallbladder (cystic duct and cystic artery), and the lower third of the gallbladder must be separated from the liver bed. The examiner expects you to NEVER clip and divide structures until the CVS is unequivocally achieved. If the CVS cannot be obtained due to severe inflammation, the bail-out options are: subtotal (reconstituting) cholecystectomy, fundus-first technique, intraoperative cholangiogram, or open conversion.
Key Examiner Focus Points
- Critical view of safety (CVS): hepatocystic triangle cleared, two structures (cystic duct + cystic artery) visible, lower third of gallbladder separated from liver
- Bail-out options if CVS cannot be achieved: subtotal cholecystectomy, fundus-first, open conversion
- Strasberg classification for bile duct injuries
- Intraoperative cholangiography or ultrasound to delineate unclear anatomy
- Acute cholecystitis: early cholecystectomy (within 72 hrs) is safe and cost-effective
Common Curveballs
After clipping what you thought was the cystic duct, bile is leaking from the common bile duct
You have injured the CBD (Strasberg E injury). Do not attempt repair yourself unless you are experienced in biliary reconstruction. Control the leak, place drains, close the abdomen, and consult a hepatobiliary surgeon immediately. Definitive repair is a Roux-en-Y hepaticojejunostomy, preferably at a tertiary center.
The gallbladder is severely inflamed and frozen in Calot's triangle — you cannot identify any structures
Do NOT blindly dissect. Bail-out options: (1) Subtotal cholecystectomy — open the fundus, remove stones, cauterize the mucosa, and leave the infundibulum/Hartmann's pouch attached to the liver. (2) Place a cholecystostomy tube. (3) Convert to open. Never clip structures you cannot identify.
Pathology shows incidental gallbladder cancer — T2 invading the muscularis
T1a (lamina propria only): cholecystectomy is curative. T1b or T2+: requires radical re-resection — hepatic segments IVb and V (gallbladder bed resection), portal lymphadenectomy, and possible CBD resection if the cystic duct margin is positive. If the initial cholecystectomy was performed with a bag, prognosis is better. Port-site excision is no longer routinely recommended.
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