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Oculocardiac reflex and postoperative vomiting in paediatric strabismus surgery. A randomised controlled trial comparing four anaesthetic techniques

Identifieur interne : 002415 ( Main/Merge ); précédent : 002414; suivant : 002416

Oculocardiac reflex and postoperative vomiting in paediatric strabismus surgery. A randomised controlled trial comparing four anaesthetic techniques

Auteurs : M. R. Tramer [Suisse] ; A. Sansonetti [Suisse] ; T. Fuchs-Buder [Suisse] ; K. Rifat [Suisse]

Source :

RBID : Pascal:98-0077467

Descripteurs français

English descriptors

Abstract

Background: Oculocardiac reflex (OCR) and postoperative vomiting are major complications of paediatric strabismus surgery. Methods: Children (3-16 yr) undergoing elective strabismus surgery as inpatients were randomly allocated to four anaesthetic techniques: (A) thiopentone induction and isoflurane maintenance; (B) as (A) plus ondansetron 5 mg . m-2 iv; (C) propofol induction and maintenance; (D) as (C) plus lignocaine 2 mg . kg-1 iv. All children received prophylactic atropine 0.02 mg . kg-1 and alfentanil. Nitrous oxide was omitted. Results: Data on 157 children were analysed. The cumulative incidence of vomiting within 6 and 24 h after surgery with thiopentone-isoflurane was 26% and 46%, respectively. Adding ondansetron decreased the incidence to 8% and 33%, respectively. This improvement was significant within 6 h only; the numberneeded-to-treat was 5.5 (95% Cl 2.9-46). Propofol was not different from thiopentone-isoflurane. The addition of lignocaine to propofol was of no benefit. The risk of an OCR was significantly increased with propofol (incidence 40%) compared with isoflurane (14%); the number-needed-to-harm was 3.9 (95% Cl 2.6-8). Conclusions: Thiopental-isoflurane-air/O2-alfentanil resulted in a moderate risk of vomiting. Adding ondansetron significantly decreased this risk, but 6 children have to be treated for one to benefit in the early postoperative period. Propofol and propofollignocaine showed no benefit on vomiting but significantly increased the risk of an OCR despite high-dose prophylactic atropine.

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Pascal:98-0077467

Le document en format XML

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<term>Strabismus</term>
<term>Surgery</term>
<term>Technique</term>
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<term>Anesthésie générale</term>
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<term>Strabisme</term>
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<term>Réflexe oculocardiaque</term>
<term>Vomissement</term>
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<front>
<div type="abstract" xml:lang="en">Background: Oculocardiac reflex (OCR) and postoperative vomiting are major complications of paediatric strabismus surgery. Methods: Children (3-16 yr) undergoing elective strabismus surgery as inpatients were randomly allocated to four anaesthetic techniques: (A) thiopentone induction and isoflurane maintenance; (B) as (A) plus ondansetron 5 mg . m
<sup>-2</sup>
iv; (C) propofol induction and maintenance; (D) as (C) plus lignocaine 2 mg . kg
<sup>-1</sup>
iv. All children received prophylactic atropine 0.02 mg . kg
<sup>-1</sup>
and alfentanil. Nitrous oxide was omitted. Results: Data on 157 children were analysed. The cumulative incidence of vomiting within 6 and 24 h after surgery with thiopentone-isoflurane was 26% and 46%, respectively. Adding ondansetron decreased the incidence to 8% and 33%, respectively. This improvement was significant within 6 h only; the numberneeded-to-treat was 5.5 (95% Cl 2.9-46). Propofol was not different from thiopentone-isoflurane. The addition of lignocaine to propofol was of no benefit. The risk of an OCR was significantly increased with propofol (incidence 40%) compared with isoflurane (14%); the number-needed-to-harm was 3.9 (95% Cl 2.6-8). Conclusions: Thiopental-isoflurane-air/O
<sub>2</sub>
-alfentanil resulted in a moderate risk of vomiting. Adding ondansetron significantly decreased this risk, but 6 children have to be treated for one to benefit in the early postoperative period. Propofol and propofollignocaine showed no benefit on vomiting but significantly increased the risk of an OCR despite high-dose prophylactic atropine.</div>
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