title: Anesthetic induction trismus, more than a closed-mouth problem.
abstract: Trismus, or masseter hypertonia, that results from the use of succinylcholine during induction of anesthesia is a rare and dangerous phenomenon. It presents to the anesthesiologist the immediate problem of airway management but it also must be recognized by the physician as a harbinger of malignant hyperthermia. We report a case of induction trismus and discuss its association with malignant hyperthermia. The pathophysiology, diagnosis and treatment of malignant hyperthermia are reviewed.
mesh_terms: D000771:Anesthesia, Intravenous / Q000009:adverse effects*; D002648:Child; D005260:Female; D006801:Humans; D008305:Malignant Hyperthermia / Q000209:etiology* / Q000628:therapy; D013390:Succinylcholine / Q000009:adverse effects*; D014313:Trismus / Q000139:chemically induced*
chemical_list: D013390:Succinylcholine