Malignant Hyperthermia
Overview
Causes
This problem is often caused by a faulty gene. People who have the gene have malignant hyperthermia susceptibility.
MH can be triggered by certain medicines, mainly anesthesia and muscle relaxers.
SymptomsandDiagnosis
Symptoms
Problems may start after medicine is given. A person may have:
- Fever higher than 105 degrees Fahrenheit (ºF) (40.6 degrees Celsius [ºC])
- Stiff muscles
- Muscle spasms, mainly in the face
- Fast breathing
- Fast or irregular heartbeat
- Dark urine
- An uneven skin color
Muscle Fibers |
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Treatments
Treatment
Any medicine causing this problem will be stopped or changed. Medicine may also be given to lower body temperature.
Emergency care will be needed, such as:
- Oxygen therapy
- Ending or postponing surgery
- Supportive care and monitoring
This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.
Edits to original content made by Denver Health.
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