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Abstract Malignant hyperthermia is a relatively new disease. having been first described in 1960. In the short time since then. this syndrome has been doc.Jmented in hundreds of patients. an animal model has been charactenzed. methods of avoidance aJld treatment haw been described. and morbidity and mor.ali:y have been greatly reduced. Anesthesiologists and patients have bewme aware of ,}-..;,s po:ential problem. a.TJ.d there is an organization devoted to makir.g infonnation available about t.1-J.e prevention and treatment of this disorder. However. many important questions and controversial issues. remain. Paramount among these. is the need for a readiiy available. accurate no!’ invasive and reliable test to conftnn the diagnosis of malignant hypertbennia susceptibiliry. The genetic defect responsible for the disease has yet to be elucidated. and the pathology of the syndrome is incompletely understood. The most important consideration for the practicing anesthesiologist is a constant awareness that this syndrome can and does occur. The earliest sign of MH is tachycardia, tachypnea. muscle rigidity, fever and muscle breakdov..Tl. The association of MH with a variety of muscle disorders has been confirmed repeatedly. How many muscle clisorders are associated with MH susceptibility is not at all clear. Patients with muscle dystrophy should be treated as though they are susceptible w malignant hypertltermia and agents which initiate MH should be avoided. |