Acute cholecystitis ten weeks after a drug-eluting stent
A 78-year-old man presents with three days of right upper quadrant pain, fever to 38.7 C and vomiting. Ten weeks ago he had a drug-eluting stent placed in the left anterior descending artery after a non-ST-elevation myocardial infarction, and he takes aspirin 81 mg plus ticagrelor 90 mg twice daily, along with metoprolol, atorvastatin and lisinopril. Examination shows guarding in the right upper quadrant with a positive Murphy sign. Pulse 114, blood pressure 128/76, respiratory rate 20, oxygen saturation 96% on air. White cell count 17.8, bilirubin 1.3 mg/dL, mildly raised transaminases, creatinine giving an estimated GFR of 52. Ultrasound shows a distended gallbladder with a 6 mm wall, pericholecystic fluid and stones, a 5 mm common bile duct and no ductal stones.
1. Compare laparoscopic cholecystectomy now, percutaneous cholecystostomy, and antibiotics alone for this patient. Which do you choose, and what would change your mind?
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He has moderate-grade acute cholecystitis (fever, white cell count above 18, pulse above 100) and is a high cardiac-risk surgical candidate: within three months of an acute coronary syndrome and stent implantation, on dual antiplatelet therapy, with reduced renal function.
- Laparoscopic cholecystectomy now is standard for grade I-II disease in fit patients and is definitive, but here it would mean either operating on dual antiplatelet therapy (bleeding risk) or interrupting it early after a recent stent (stent thrombosis risk).
- Antibiotics alone gives inadequate source control in moderate disease with ongoing inflammation and high recurrence.
- Percutaneous cholecystostomy plus intravenous antibiotics achieves drainage without stopping antiplatelet therapy, and allows definitive surgery later. I would choose this, with drainage by interventional radiology.
I would change course and operate urgently if there were perforation, gangrene, emphysematous change, or clinical deterioration despite drainage.
2. How do you manage his antiplatelet therapy around whatever procedure you choose, and whom do you involve?
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The default is to continue aspirin and not to interrupt dual therapy for a non-emergent procedure. Stent thrombosis risk is highest in the first weeks to months after implantation, and this man is at that peak.
- Percutaneous drainage does not require stopping either agent; proceed with attention to bleeding at the puncture site and correct any coagulopathy.
- If surgery became unavoidable, aspirin must be continued and ticagrelor held only after cardiology agrees, typically for about five days. That decision must be made jointly, not by the surgeon alone.
- Discuss timing of the interval cholecystectomy with cardiology: generally after completion of the mandated dual antiplatelet course and beyond six months from the acute coronary syndrome, whichever is later.
- Document the shared decision explicitly, because both paths carry catastrophic-but-different risks.
Involve cardiology, interventional radiology, anaesthesia, and the patient in a single documented conversation.
3. The family asks why the gallbladder cannot simply be removed now. Explain in plain terms and outline the plan after drainage.
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Explain the trade-off concretely: the gallbladder needs drainage because antibiotics alone will not settle it, but open or keyhole removal within ten weeks of a new heart stent risks a clot forming in the stent if the blood thinner is stopped, which can cause a heart attack or death. A drain buys time and controls the infection while the heart treatment completes.
Plan:
- Drain output, tube care, and when to call (fever, worsening pain, tube dislodgement, bile leakage).
- Antibiotics guided by cultures and clinical response.
- Tube check cholangiogram in about six weeks; do not simply remove a drain that has not been imaged.
- Interval cholecystectomy after dual antiplatelet therapy can safely be modified, coordinated with cardiology. If he never becomes a surgical candidate, long-term tube management with surveillance is acceptable and should be stated honestly.
- Document that recurrence risk is high if the drain is removed without definitive treatment.