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Article: Masseter muscle rigidity and nondepolarizing neuromuscular blocking agents
- Article from:
- Mayo Clinic Proceedings
- Article date:
- April 1, 1997
- Author:
CopyrightCopyright Mayo Foundation for Medical Education and Research Apr 1997. Provided by ProQuest LLC. (Hide copyright information)
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Masseter muscle rigidity has been identified as a possible risk factor for malignant hyperthermia (MH) and is usually noted in children receiving intravenously administered succinylcholine chloride after mask induction with halothane. Nondepolarizing muscle relaxants are considered safe for persons susceptible to MH. In this article, we present a case of clinically recognized jaw rigidity in the absence of succinylcholine after administration of a nondepolarizing muscle relaxant that was reported to the Malignant Hyperthermia Association of the United States hot line. The patient had recurrent jaw rigidity during subsequent anesthesia when a different nondepolarizing muscle relaxant was ...
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