British Journal of Anaesthesia, Vol 81, Issue 3 390-392, Copyright © 1998 by The Board of Management and Trustees of the British Journal of Anaesthesia
Y. Fujii, H. Toyooka and H. Tanaka
We have studied the efficacy of granisetron, a selective 5-
hydroxytryptamine type 3 receptor antagonist, administered orally for the
prevention of postoperative vomiting after tonsillectomy in children. In a
randomized, double-blind, placebo-controlled study, 160 paediatric
patients, ASA 1, aged 4-10 yr, received placebo or granisetron (20, 40 or
80 micrograms kg-1) (n = 40 each) orally, 1 h before surgery. A standard
general anaesthetic technique was used throughout. A complete response,
defined as no emesis and no need for another rescue antiemetic during the
first 24 h after anaesthesia, occurred in 40%, 48%, 85% and 90% of patients
who had received placebo, or granisetron 20, 40 or 80 micrograms kg-1,
respectively (P < 0.05; overall Fisher's exact probability test). There
were no clinically important adverse events. We conclude that preoperative
oral granisetron, in doses more than 40 micrograms kg-1, was effective for
the prevention of postoperative vomiting in children.
CLINICAL INVESTIGATIONS
Oral granisetron prevents postoperative vomiting in children
Department of Anaesthesiology, University of Tsukuba Institute of Clinical Medicine, 2-1-1, Amakubo, Tsukuba City, Ibaraki 305, Japan; Department of Anaesthesiology, Toride Kyodo General Hospital, Toride City, Ibaraki, Japan
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