Porcine malignant hyperthemia IV: Neuromuscular blockade. 1976

G M Hall, and J N Lucke, and D Lister

The effect of tubocurarine and pancuronium on the initiation or prevention of porcine malignant hyperthermia (MH) was investigated in Pietrain pigs. Tubocurarine 0.6 mg/kg body weight inhibited a suxamethonium-induced response in three pigs, but failed to prevent a fatal halothane-induced response in a further four pigs. Pancuronium 0.2 mg/kg body weight was given to six pigs before a halothane challenge. Three animals developed MH and died; the remainder succembed only after reversal of the neuromuscular blockade. The partial protection afforded by large doses of pancuronium is discussed in relation to the ability of previous muscle activity to influence the sensitivity to halothane.

UI MeSH Term Description Entries
D008305 Malignant Hyperthermia Rapid and excessive rise of temperature accompanied by muscular rigidity following general anesthesia. Hyperpyrexia, Malignant,Hyperthermia, Malignant,Malignant Hyperpyrexia,Anesthesia Related Hyperthermia,Hyperthermia of Anesthesia,Anesthesia Hyperthermia,Hyperthermia, Anesthesia Related,Malignant Hyperpyrexias
D009469 Neuromuscular Junction The synapse between a neuron and a muscle. Myoneural Junction,Nerve-Muscle Preparation,Junction, Myoneural,Junction, Neuromuscular,Junctions, Myoneural,Junctions, Neuromuscular,Myoneural Junctions,Nerve Muscle Preparation,Nerve-Muscle Preparations,Neuromuscular Junctions,Preparation, Nerve-Muscle,Preparations, Nerve-Muscle
D010197 Pancuronium A bis-quaternary steroid that is a competitive nicotinic antagonist. As a neuromuscular blocking agent it is more potent than CURARE but has less effect on the circulatory system and on histamine release. Pancuronium Bromide,Pancuronium Curamed,Pancuronium Organon,Pavulon,Bromide, Pancuronium
D006221 Halothane A nonflammable, halogenated, hydrocarbon anesthetic that provides relatively rapid induction with little or no excitement. Analgesia may not be adequate. NITROUS OXIDE is often given concomitantly. Because halothane may not produce sufficient muscle relaxation, supplemental neuromuscular blocking agents may be required. (From AMA Drug Evaluations Annual, 1994, p178) 1,1,1-Trifluoro-2-Chloro-2-Bromoethane,Fluothane,Ftorotan,Narcotan
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013390 Succinylcholine A quaternary skeletal muscle relaxant usually used in the form of its bromide, chloride, or iodide. It is a depolarizing relaxant, acting in about 30 seconds and with a duration of effect averaging three to five minutes. Succinylcholine is used in surgical, anesthetic, and other procedures in which a brief period of muscle relaxation is called for. Succinyldicholine,Suxamethonium,Anectine,Celocurine,Dicholine Succinate,Ditilin,Listenon,Lysthenon,Myorelaxin,Quelicin,Succicuran,Succinylcholine Chloride,Succinylcholine Dibromide,Succinylcholine Dichloride,Succinylcholine Dichloride, Di-H2O,Succinylcholine Diiodide,Succinylcholine Diperchlorate,Succinylcholine Iodide,Suxamethonium Bromide,Suxamethonium Chloride,Bromide, Suxamethonium,Dibromide, Succinylcholine,Dichloride, Succinylcholine,Diiodide, Succinylcholine,Diperchlorate, Succinylcholine,Succinate, Dicholine,Succinylcholine Dichloride, Di H2O
D013552 Swine Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA). Phacochoerus,Pigs,Suidae,Warthogs,Wart Hogs,Hog, Wart,Hogs, Wart,Wart Hog
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor
D014403 Tubocurarine A neuromuscular blocker and active ingredient in CURARE; plant based alkaloid of Menispermaceae. Tubocurare,Tubocurarine Chloride,d-Tubocurare,d-Tubocurarine

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