Pediatric anesthesia & critical care

Determining residual gastric volume in healthy children using ultrasound

Can J AnaesthPublished Prospective observational study

Authors' conclusion

Our results show that total gastric fluid volume was < 1.5 mL·kg-1 after 60 min

Study context

Population
Healthy children aged 2–14 yr following ASA fasting guidelines, given 250 mL of clear fluid
Participants
33 children
Outcome
Time to achieve gastric volume < 1.5 mL·kg-1 after clear fluid ingestion (gastric ultrasound (US), right lateral decubitus (RLD) antral cross-sectional area (CSA))

Main finding

As reported in the abstract

Mean gastric volume per weight
Baseline: mean 0.51 mL·kg-1
0.51 (95% CI 0.46 to 0.57)
30 min: mean 1.55 mL·kg-1
1.55 (95% CI 1.36 to 1.75)
60 min: mean 1.17 mL·kg-1
1.17 (95% CI 1.01 to 1.33)
90 min: mean 0.76 mL·kg-1
0.76 (95% CI 0.67 to 0.85)
120 min: mean 0.58 mL·kg-1
0.58 (95% CI 0.52 to 0.65)

Observational data: associations, not effects.

Original publication

Determining residual gastric volume in healthy children using ultrasound. Can J Anaesth. Published 29 June 2023. doi:10.1007/s12630-023-02526-y

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