[Use of atracurium for the prevention of fasciculations and succinylcholine myalgia in athletes undergoing orthopedic surgery].

The Authors report their clinical experience about the use of atracurium besylate in preventing succinylcholine-induced fasciculations and postoperative myalgias in fifty athletes (ASA class 1), submitted to arthroscopic meniscectomy. The patients were pretreated with atracurium 5 mg i.v. or saline solution in a double-blind fashion. After 2.5 minutes, succinylcholine 1.3 mg/kg was administered, and fasciculations were recorded on a scale ranging from 0 to 3. Twenty-four hours after surgery all subjects were questioned about myalgias occurrence, scored by a 0-3 scale. Fasciculations occurred in all patients who received saline and in 44% of those treated with atracurium. Myalgias on the postoperative day were observed in 80% of patients treated with saline solution, but only in 36% of patients who received atracurium. The difference between atracurium and saline solution was statistically significant (p less than 0.001) either for fasciculations or myalgias incidence. These findings show that atracurium 5 mg i.v. is effective in preventing succinylcholine-induced fasciculations and postoperative myalgias, and suggest atracurium as the drug of choice for this purpose, particularly in muscular subjects.