Malignant hyperthermia is diagnosed using genetic testing.


If you have a family history of malignant hyperthermia or have a family member who has problems with anesthesia, tell your surgeon and anesthesiologist prior to surgery. This step allows your doctors to prepare for and respond quickly to any reactions.

A drug called dantrolene (Dantrium) is used to treat the reaction. Ice packs, cooling blankets and fans may also be used to help reduce body temperature.

Clinical trials

Explore Mayo Clinic studies testing new treatments, interventions and tests as a means to prevent, detect, treat or manage this disease.

Dec. 08, 2018
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