Dartmouth-Hitchcock Medical Center
This is a case series study using gastric ultrasound in critically ill patients to quantify gastric residual volumes to compare the efficacy of different NPO protocols.
Inclusion Criteria: * Patients age 18 or older, admitted to the ICU, requiring general anesthesia or sedation for a procedure with a pre-existing, cuffed endotracheal or tracheostomy tube. Most patients admitted to the ICU would be unable to consent. Exclusion Criteria: * Known upper gastrointestinal anatomical problem that would prevent accurate estimation of gastric volume, gastric perforation, pregnancy beyond the first trimester. * Lack of a pre-existing, cuffed endotracheal or tracheostomy tube.
Gastric ultrasound in the supine and right lateral decubitus position for patients going for operative intervention with a protected airway.
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