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Canadian Journal of Anesthesia, Vol 37, 498-501, Copyright © 1990 by Canadian Anesthesiologists' Society

ARTICLES

Clear fluids three hours before surgery do not affect the gastric fluid contents of children

WM Splinter, JD Schaefer and IH Zunder
Department of Anaesthesia, Children's Hospital, University of Ottawa, Ontario.

This prospective, randomized, single-blind study of 121 healthy children aged 2 to 12 yr investigated the effect of clear fluids on gastric contents. Gastric fluid volume and pH were measured immediately following the induction of general anaesthesia and were not significantly affected by the ingestion of unlimited clear fluids up to three hours preoperatively. After a prolonged fast (mean fast 14 hr), gastric fluid volume was 0.39 +/- 0.37 ml.kg-1 and gastric pH was 1.7 +/- 0.4; after unlimited clear fluids (203 +/- 109 ml) up to three hours before surgery gastric fluid volume was 0.34 +/- 0.28 ml.kg-1 and gastric pH was 1.8 +/- 0.7 (mean +/- SD). Gastric fluid volume (ml.kg-1) increased in both the control and study groups as age increased, P less than 0.005. It is concluded that drinking clear fluid up to three hours before scheduled surgery does not have a measurable effect on gastric volume and pH of healthy children of ages 2 to 12 yr.


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 Anesth. Analg.Home page
W. M. Splinter and M. S. Schreiner
Preoperative Fasting in Children
Anesth. Analg., July 1, 1999; 89(1): 80 - 80.
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