Gastric Volume and Antral Area in the Fasting State: A Meta-analysis of Individual Patient Data
Authors' conclusion
An area of 10 cm2 measured in the right lateral decubitus could be a simple, data-driven upper limit of antral area that could serve as a surrogate of upper limit of normal gastric volume values in fasting adults.
Study context
- Population
- Fasting adult subjects undergoing gastric ultrasound
- Participants
- 1,203 subjects · 12 primary studies
- Outcome
- Upper limit (95th percentile) of baseline antral area and gastric volume distributions
Methodological detailsacademic research network, Studies between January 2009 and December 2020
- Academic research network
- Studies between January 2009 and December 2020
Pooled result
As reported in the abstract
95th percentile of antral area (right lateral decubitus), cm²
9.9
95% CI 9.4 to 10.4
95th percentile of gastric volume, ml/kg
2.3
95% CI 2.3 to 2.4
Further pooled results
Antrum grade 0 or 1
- Probability of antral area below the 95th percentile
- 98%
Original publication
Gastric Volume and Antral Area in the Fasting State: A Meta-analysis of Individual Patient Data. Anesthesiology. Published 5 April 2024. doi:10.
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