Friday, May 6, 2016

Q: What is the pathophysiology behind acalculous cholecystitis in ICU patients?


Answer: 

3 major factors behind highly life threatening acalculous cholecystitis in severely sick patients are

  • Increased bile viscosity due to dehydration
  • Absence of cholecystokinin-induced gallbladder contraction due to prolonged absence of oral feeding (seen in patients on long-term TPN)
  • Gallbladder wall ischemia due to a low-flow state 

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