A PATIEN'F with a full stomach who requires anaesthesia for an emergency operation or an obstetrical procedure is frequently managed by a rapid induction (crash) technique. This technique ordinarily includes the use of suxamethonium to provide relaxation of the jaw so that tracheal intubation can be accomplished quickly. There are a number of conditions, however, that contraindicate the use of suxamethonium. These conditions include genetic abnormalities, central nervous system lesions that result in muscle atrophy, and severe burns) Moreover, succinylcholine is not desirable when it is essential to avoid an increase in intraocular pressure or intracranial pressure, z Under these circu instances, it would be preferable to use a non-depolarizing muscle relaxant for the rapid induction technique. The purpose of this study was to determine whether there is a dose ofpancuronium that will produce adequate conditions for intubation fast enough to satisfy the purposes of a rapid intubation technique.
METHODSThe study group consisted of 40 patients, 24 to 83 years of age. There were 14 males and 26 females. The total number of patients was divided into four groups often.Premedication varied according to the patient's age, physical status, degree of anxiety, presence or absence of pain and the likelihood of increased secretions or reflex activity. In some instances premedication was omitted, in others it was solely an anticholinergic drug or a tranquillizer.After appropriate premedlcation, the patients were pre-oxygenated and placed in the head-up position. Anaesthesia was induced with thiopentone 3 to 4 rag-kg -t or diazepam 20-40 rag,