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Difficulty: MediumSurgical and Procedural Interventions

An 82-year-old man is evaluated in the intensive care unit for new-onset fever and abdominal distension. He was admitted 8 days ago for severe community-acquired pneumonia requiring endotracheal intubation and mechanical ventilation. His medical history is significant for coronary artery disease and heart failure with preserved ejection fraction. Current medications include propofol, fentanyl, and intravenous broad-spectrum antibiotics. Temperature is 38.9°C (102.0°F), blood pressure is 88/54 mm Hg (currently requiring a norepinephrine infusion), pulse is 118/min, and respirations are 18/min on the ventilator. Physical examination reveals a distended abdomen with guarding in the right upper quadrant. Laboratory studies show a leukocyte count of 22,000/mm³ and serum lactate of 4.1 mmol/L. Liver function tests show a normal total bilirubin and mildly elevated transaminases. A bedside right upper quadrant ultrasound reveals a thickened gallbladder wall measuring 6 mm, significant pericholecystic fluid, and absence of gallstones. The common bile duct is not dilated. Which of the following is the most appropriate next step in the procedural management of this patient?

  1. Placement of a percutaneous cholecystostomy drainAnswer
  2. B
    Laparoscopic removal of the gallbladder
  3. C
    Endoscopic retrograde cholangiopancreatography
  4. D
    Hepatobiliary iminodiacetic acid scintigraphy
  5. E
    Continuation of current intensive care management without procedural intervention

Answer

Placement of a percutaneous cholecystostomy drain
The correct answer is placement of a percutaneous cholecystostomy drain. This patient is presenting with acute acalculous cholecystitis, a life-threatening condition that frequently arises in critically ill, hospitalized individuals (e.g., those with sepsis, major trauma, or prolonged mechanical ventilation). The pathogenesis involves gallbladder ischemia and stasis leading to inflammation and secondary bacterial infection, which is supported by the bedside ultrasound demonstrating gallbladder wall thickening and pericholecystic fluid without stones. Because this patient is hemodynamically unstable and dependent on vasopressors, he is at an extreme risk for perioperative mortality if subjected to a definitive surgical procedure. Therefore, the most appropriate next step for providing necessary source control is the minimally invasive placement of a percutaneous cholecystostomy drain, typically performed at the bedside or under local anesthesia.

Step-by-Step Solution

1
Analyze the clinical and diagnostic findings.
The patient has a fever, RUQ guarding, leukocytosis, and an ultrasound showing a thickened gallbladder wall with pericholecystic fluid but no stones.
These findings are classic for acute acalculous cholecystitis, a severe condition typically seen in critically ill, hospitalized patients.
2
Assess the patient's hemodynamic status and surgical risk.
The patient is hypotensive, requires a norepinephrine infusion, has an elevated lactate level, and is mechanically ventilated.
This establishes that the patient is highly unstable and a poor candidate for general anesthesia and invasive surgery.
3
Determine the optimal intervention that balances source control with procedural risk.
Image-guided percutaneous cholecystostomy.
It successfully decompresses the infected gallbladder using a minimally invasive approach, avoiding the extreme physiological stress of surgery in a critically ill patient.

Key Concept

The procedural management of acute acalculous cholecystitis in critically ill or hemodynamically unstable patients is placement of a percutaneous cholecystostomy tube.
Estimated Time:1m 15s
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Topics

Surgical and Procedural Interventions

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