Prevalence and factors associated with high-risk gastric contents in women admitted to the maternity unit for childbirth: a prospective multicentre cohort study
Authors' conclusion
Around two-thirds of parturients had high-risk gastric contents within the first hour after admission to the maternity unit.
Study context
- Population
- Women admitted to the maternity unit for childbirth, gastric ultrasound within the first hour after admissionanalysed
- Participants
- 1,003 women
- Outcome
- Prevalence of high-risk gastric contents
- Follow-up
- Within the first hour after admission
Methodological detailsmulticentre, observational
- Multicentre
- Observational
Main finding
As reported in the abstract
Whole cohort
65%
646/1003; 95% CI 61–67%
Spontaneous labour
70%
379/544; 95% CI 66–74%
Observational data: associations, not effects.
Further findings
Factors associated with high-risk gastric contents (logistic regression)
- Lower gestational age, increased fasting duration for solids and elective Caesarean delivery independently associated with reduced likelihood of high-risk gastric contents
Prevalence of high-risk gastric contents by fasting duration for solids (spontaneous labour and whole cohort)
- Fasting <6 h
- 85% to 86%
- Fasting 6-8 h
- 63%-68%
- Fasting 8-12 h
- 54%-55%
- Fasting ≥12 h
- 47%-51%
Original publication
Prevalence and factors associated with high-risk gastric contents in women admitted to the maternity unit for childbirth: a prospective multicentre cohort study. Br J Anaesth. Published 4 January 2024. doi:10.
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