Malignant hyperthermia synonyms

Malignant Hyperthermia Synonyms

Malignant hyperthermia (MH) is a rare but potentially life-threatening condition that can occur during general anesthesia. It is characterized by a rapid rise in body temperature, muscle rigidity, and a fast heart rate. MH is often triggered by certain medications used during anesthesia, such as volatile anesthetics and succinylcholine.

While "malignant hyperthermia" is the commonly used term to describe this condition, there are several synonyms that are used interchangeably:

• Malignant Hyperpyrexia: This term is often used to emphasize the extreme elevation of body temperature that occurs in MH. "Hyperpyrexia" refers to a body temperature above 106°F (41.1°C).


• Hypermetabolic Syndrome: This synonym highlights the underlying metabolic disturbance that takes place during an MH episode. The body's metabolism speeds up significantly, leading to increased oxygen consumption, carbon dioxide production, and heat generation.


• Anesthetic-induced Rhabdomyolysis: This term focuses on the muscle breakdown (rhabdomyolysis) that occurs as a result of MH. The breakdown of muscle tissue can release harmful substances into the bloodstream, potentially leading to kidney damage.


• Halothane Contracture Test-positive Malignant Hyperthermia: This synonym refers to a specific diagnostic test called the halothane contracture test. A positive result indicates susceptibility to MH triggered by halothane, a volatile anesthetic.

It is important for healthcare professionals to be familiar with these synonyms to ensure accurate communication and understanding when discussing MH. Prompt recognition and treatment of MH are crucial to prevent severe complications and reduce the risk of mortality.