Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Malignant hyperthermia
Medically reviewed by Min Clinic Staff | Updated: January 2026
Malignant hyperthermia: A series of potentially fatal problems that can occur during surgery, malignant hyperthermia is caused by a reaction to anesthesia. The body's metabolism rises suddenly, causing a sudden jump in body temperature and muscle rigidity. The result can be damage to tissues and organs (including the brain), or death. The propensity to malignant hyperthermia is inherited. Treatment is by administering dantrolene sodium (brand name: Dantrium) and rapidly cooling the patient.