Rapid Tracheal Intubation with Vecuronium

Abstract

Following the administration of a single 0.1 mg/kg dose of vecuronium bromide, satisfactory conditions for tracheal intubation developed in 156 .+-. 12 s (mean .+-. SEM) and the clinical duration of the initial dose was 36 .+-. 2 min. When the intial dose of vecuronium was administered in 2 increments, a 0.015 mg/kg priming dose, followed 6 min later by 0.050 mg/kg intubating dose, intubation time decreased to 61 .+-. 3 s and clinical duration to 21 .+-. 1 min. The priming dose that had no unpleasant effect on premedicated, awake patients could be administered 3-4 min before and the intubating dose 2-3 min after induction of anesthesia. With the described technique, comparable intubating conditions could be obtained just as rapidly with vecuronium as with succinylcholine chloride, without subjecting the patients to the side effects of and the complications occasionally encountered with succinylcholine. An added advantage of the use of a priming dose is that it will reveal undiagnosed, pathologic or idiopathic increase of sensitivity to nondeplorizing muscle relaxants.