Malignant Hyperthermia Association

MedicAlert is proud to partner with the Malignant Hyperthermia Association of the United States (MHAUS). MHAUS is the leading patient organization for individuals living with Malignant Hyperthermia (MH). Together, we’re committed to awareness, education and support for those living with MH.

When you enroll in a new MedicAlert membership through the link below or via phone, use the code MHAUS and MedicAlert will donate 20% of your membership fees back to MHAUS to promote optimum care and scientific understanding of MH and related disorders.

Malignant hyperthermia is a potentially fatal, inherited disorder usually associated with the administration of some general anesthetics and/or the drug succinylcholine. Most people who are MH-susceptible are unaware until they experience an MH crisis. According to MHAUS, the exact incidence of malignant hyperthermia is unknown – but anyone with a family history of MH is potentially at risk.

A MH crisis can occur during surgery, extreme heat or exercise. The hallmark symptoms are dangerously high body temperature, muscle rigidity, rapid heart rate and shallow breathing. Without prompt treatment, a MH crisis can be fatal.

Because MH is relatively rare, medical professionals can get support from MHAUS experts to diagnose and treat an MH crisis. The MH Hotline is staffed 24/7 and provides practitioners immediate access to real time advice in handling this fast-moving and complex disorder.

If you are MH-susceptible, a MedicAlert ID and membership are vital protections. In an emergency, if you can’t speak for yourself, MedicAlert will be your voice to avoid a potentially fatal MH crisis.

If you need support and guidance – use these helpful resources from MHAUS: