Aspiration risk assessment for postpartum tubal ligation using gastric ultrasound: a single-center prospective observational trial
Authors' conclusion
Immediate postpartum tubal ligation may pose significant aspiration risks.
Study context
- Population
- Women 1 h after vaginal delivery considered for postpartum tubal ligation
- Participants
- 54 women
- Exposure
- Gastric ultrasound-based vs ASA time-based fasting criteria aspiration risk classification
- Outcome
- High aspiration risk on gastric ultrasound (solid/thick contents in either position and/or clear fluid with calculated gastric volume ≥1.5 mL/kg, right lateral decubitus)
- Follow-up
- One hour after vaginal delivery
Methodological detailssingle-centre
- Single-centre
Main finding
As reported in the abstract
High aspiration risk on gastric ultrasound
High aspiration risk, n (%)
25
46.3%
Met time-based fasting criteria but high-risk gastric contents on ultrasound, n (%)
15
27.8%
Observational data: associations, not effects.
Further findings
Fasting times
- Median time since last clear liquid intake (h)
- 2.0
- Median time since last solid intake (h)
- 15.2
Original publication
Aspiration risk assessment for postpartum tubal ligation using gastric ultrasound: a single-center prospective observational trial. Int J Obstet Anesth. Published 14 February 2026. doi:10.
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