ArticlePaediatric anaesthesia2026
Routine Replacement of Fasting Deficits in Pediatric Ambulatory Anesthesia: A Propensity-Matched Retrospective Cohort Study.
Article in Paediatric anaesthesia, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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7 authors.
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Abstract
backgroundRoutine replacement of calculated fasting deficits is common during pediatric anesthesia, but it remains uncertain whether formula-based deficit replacement is necessary to maintain intraoperative stability or postoperative recovery.
aimsWe aimed to evaluate whether reducing routine fasting-deficit replacement adversely affected intraoperative hemodynamic stability or early postoperative recovery in pediatric ambulatory procedures.
methodsWe conducted a retrospective cohort study of 9640 pediatric ambulatory procedures at a tertiary children's hospital (May 2024-March 2025), of whom 8508 were included after propensity score matching (4254 per group). A national intravenous fluid shortage prompted an institution-wide reduction in routine fasting-deficit replacement, creating a natural experiment independent of clinician preference. The primary outcome was intraoperative vasopressor administration; secondary outcomes included post-anesthesia care unit (PACU) rescue antiemetic use, PACU length of stay, and emergency department encounters within 24 h.
resultsMean intraoperative crystalloid administration decreased by 38.1% following the practice change. Reduced fluid administration was not associated with increased vasopressor use (adjusted OR 1.13, 95% CI 0.92-1.38). Secondary outcomes-PACU rescue antiemetic use (adjusted OR 0.44, 95% CI 0.13-1.43), PACU length of stay (mean difference -0.7 min), and emergency department encounters within 24 h (adjusted OR 0.53, 95% CI 0.21-1.32)-did not differ between groups, though event rates were low and the study was not powered to detect differences in these outcomes. The confidence interval for the primary outcome does not exclude a clinically meaningful increase in vasopressor use; statistical non-significance should not be interpreted as equivalence.
conclusionsIn children undergoing ambulatory procedures, a substantial reduction in routine fasting-deficit replacement was not associated with increased vasopressor use, and no important differences were observed in early postoperative recovery. These findings did not identify a clear benefit of routine empiric fasting-deficit replacement in otherwise healthy children undergoing short ambulatory procedures.
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