Perioperative medicine & outcomes

Practical significance and assessment of gastric ultrasound in preoperative carbohydrate loading: A retrospective analysis of 746 patients within the enhanced recovery after surgery pathway

Anaesth Crit Care Pain MedPublished Retrospective cohort study

Authors' conclusion

Patients receiving PCL within the ERAS protocol may be safe in clinical practice without an elevated risk of having an increased gastric content.

Study context

Population
Patients receiving preoperative carbohydrate loading (PCL) and undergoing hepatobiliary surgery within Enhanced Recovery After Surgery (ERAS) protocol, November 2018 to December 2023of 1187 patients
Participants
746 patients
Outcome
Incidence of increased gastric content (gastric ultrasound)

Main finding

As reported in the abstract

Incidence of increased gastric content

Increased gastric content, observed in 36 patients

4.8%

95% CI 3.5–6.6%

Observational data: associations, not effects.

Secondary outcomes

Predictors of increased gastric content (multivariate logistic regression)

OR (95% CI)P value
BMIOnly independent predictor0.66 (0.57–0.77)P < 0.001

PCL compliance

Compliance rate for PCL within ERAS protocol
88%

Fasting duration < 2 h

Fasting duration < 2 h
7.2%

Safety

Rapid sequence intubation (RSI) performed in all patients with increased gastric content
No aspiration reported

Original publication

Practical significance and assessment of gastric ultrasound in preoperative carbohydrate loading: A retrospective analysis of 746 patients within the enhanced recovery after surgery pathway. Anaesth Crit Care Pain Med. Published 16 May 2025. doi:10.1016/j.accpm.2025.101547

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