Introducing the 6-4-0 fasting regimen and the incidence of prolonged preoperative fasting in children

Paediatr Anaesth. 2018 Jan;28(1):46-52. doi: 10.1111/pan.13282. Epub 2017 Nov 23.

Abstract

Background: Children often starve for longer than recommended by current preoperative fasting guidelines.

Aims: We studied the effects of implementing a more lenient fasting regimen on the duration of clear fluid fasting, as well as the incidence of extended fasting in children.

Methods: Preoperative duration of clear fluid fasting was recorded for patients scheduled for procedures in a unit applying the standard 6-4-2 fasting regimen. This group was compared with a cohort in the same unit 1 year after transitioning to a 6-4-0 fasting regimen. The latter includes no limitations on clear fluid intake until the child is called to theater. A third cohort from a unit in which the 6-4-0 fasting regimen has been implemented for over a decade was also studied for comparison.

Results: Patients fasting according to the 6-4-2 fasting regimen (n = 66) had a median fasting time for clear fluids of 4.0 h and a 33.3% incidence of fasting more than 6 h. After transitioning to the 6-4-0 fasting regimen (n = 64), median duration of fasting for clear fluids decreased to 1.0 h, and the incidence of fasting more than 6 h decreased to 6.3%. In the second unit (n = 73), median fasting time was 2.2 h and the proportion of patients fasting more than 6 h was 21.9%.

Conclusion: The introduction and implementation of the 6-4-0 fasting regimen reduces median fluid fasting duration and the number of children subjected to extended fasting.

Keywords: anesthesia; children; fasting; fluids; preoperative.

MeSH terms

  • Adolescent
  • Anesthesia
  • Child
  • Child, Preschool
  • Clinical Protocols
  • Cohort Studies
  • Drinking
  • Fasting*
  • Female
  • Guidelines as Topic
  • Humans
  • Incidence
  • Infant
  • Male
  • Otorhinolaryngologic Surgical Procedures
  • Preoperative Care / methods*
  • Thirst
  • Treatment Outcome