Canadian Journal of Anesthesia, Vol 35, 255-258, Copyright © 1988 by Canadian Anesthesiologists' Society

ARTICLES

Myalgia in outpatient surgery: comparison of atracurium and succinylcholine

CA Trepanier, C Brousseau and L Lacerte
Department of Anesthesia, Hopital de l'Enfant-Jesus, Universite Laval, Quebec.

We studied 60 outpatients randomly divided into two groups. Anesthesia was induced with fentanyl 1.5 micrograms.kg-1 plus thiopentone 5-7 mg.kg-1. Patients in Group I were intubated with the aid of succinylcholine 1.5 mg.kg-1 after pre-treatment with d-tubocurarine 0.05 mg.kg-1. Group II received atracurium 350 micrograms.kg-1 three minutes after a priming dose of 50 micrograms.kg-1. Anesthesia was maintained with isoflurane 1-2 per cent in a mixture of nitrous oxide 60 per cent and oxygen 40 per cent. No supplemental doses of fentanyl or atracurium were given. Intubation conditions were satisfactory for all patients in both groups. There was no significant difference in intubation score between the two groups. The incidence of myalgia was 76 per cent in the succinylcholine group compared to 23 per cent in the atracurium group (p less than 0.005). Fifty per cent of the patients in the succinylcholine group had myalgia necessitating bed rest or analgesics compared to 23 per cent in the atracurium group (p less than 0.05). We conclude that atracurium is a suitable neuromuscular relaxant for outpatient surgery and that myalgia is a major morbidity factor in this population that can be reduced by the use of atracurium instead of succinylcholine.

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