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.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
SCREENING
Masking
NONE
Enrollment
50
Gastric ultrasound in the supine and right lateral decubitus position for patients going for operative intervention with a protected airway.
Dartmouth Hitchcock Medical Center
Lebanon, New Hampshire, United States
RECRUITINGGastric Residual Volumes
Quantification of gastric residual volumes as measured in milliliters using antral cross-sectional areas and semi-quantitative gastric volumes using standardized grading scores.
Time frame: Within one hour of operative intervention.
Comparison of two different NPO protocol populations
Comparing standard ASA NPO protocol vs liberal, feed-up-until-call to OR protocol as defined by comparison of gastric volumes (mLs).
Time frame: Within four months of study completion, 16 months from study start
Peri-operative aspiration events
Number of aspiration events per number of operative interventions.
Time frame: Within four months of study completion, 16 months from study start
Estimation of the amount of enteral nutrition lost prior to surgery using the different NPO protocols
Calculation of enteral nutrition held during NPO time in kilocalories.
Time frame: Zero to sixteen hours prior to surgery
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