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Difficulty: HardSurgical and Procedural Interventions

A 68-year-old man is evaluated in the intensive care unit for a new-onset fever and increasing vasopressor requirements. He was admitted 12 days ago for severe acute respiratory distress syndrome secondary to viral pneumonia. He remains mechanically ventilated. Current medications include continuous infusions of propofol, fentanyl, and norepinephrine, as well as prophylactic enoxaparin. Temperature is 39.2°C (102.6°F), blood pressure is 88/54 mm Hg, pulse is 118/min, and respiratory rate is 24/min on the ventilator. Physical examination reveals right upper quadrant rigidity and guarding when sedation is temporarily lightened. Laboratory studies show a leukocyte count of 22,000/mm³ with a left shift. Liver function tests reveal a normal total bilirubin and alkaline phosphatase, but mildly elevated aspartate and alanine aminotransferases. A bedside right upper quadrant ultrasound demonstrates a distended gallbladder with a wall thickness of 6 mm, significant pericholecystic fluid, and no visible gallstones or biliary ductal dilation. Which of the following is the most appropriate next step in management?

  1. Percutaneous cholecystostomyAnswer
  2. B
    Laparoscopic cholecystectomy
  3. C
    Computed tomography of the abdomen with intravenous contrast
  4. D
    Endoscopic retrograde cholangiopancreatography
  5. E
    Continuation of current medical management with broad-spectrum antibiotics

Answer

The most appropriate intervention is a percutaneous cholecystostomy tube placement to provide minimally invasive source control.
This patient has developed acute acalculous cholecystitis, a severe complication primarily seen in critically ill, hospitalized patients. The pathogenesis involves gallbladder stasis and ischemia leading to inflammation and secondary infection. While the definitive treatment is cholecystectomy, critically ill patients with severe acute respiratory distress syndrome and hemodynamic instability requiring vasopressors are at prohibitive risk for surgery and general anesthesia. Percutaneous cholecystostomy is the procedural intervention of choice because it decompresses and drains the infected gallbladder, providing immediate source control. This procedure can be performed at the bedside using local anesthesia and ultrasound guidance, completely avoiding the physiologic stress of surgery.

Step-by-Step Solution

1
Diagnose the acute condition based on clinical and ultrasound findings.
The combination of fever, right upper quadrant signs, leukocytosis, and gallbladder wall thickening with pericholecystic fluid in the absence of gallstones confirms acute acalculous cholecystitis.
Establishing the diagnosis dictates the need for urgent source control of the infected gallbladder.
2
Assess the patient's surgical risk and hemodynamic stability.
The patient has severe ARDS, requires mechanical ventilation, and is dependent on vasopressors, making him an extremely poor candidate for operative intervention.
General anesthesia and abdominal insufflation (for laparoscopy) would likely cause profound cardiopulmonary collapse in this setting.
3
Select the appropriate procedural intervention that balances efficacy with patient safety.
Percutaneous cholecystostomy is selected as the intervention of choice.
It can be performed at the bedside under ultrasound guidance, effectively draining the infected gallbladder without the physiologic burden of surgery.

Key Concept

Management of acute acalculous cholecystitis in critically ill patients
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Topics

Surgical and Procedural Interventions

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