Hemifacial spasm is a neuromuscular disorder that causes frequent involuntary contractions to occur in the muscles on one side of the face.
Hemifacial spasm doesn't have a specific cause. It may occur as a result of: A blood vessel pressing on the facial nerveTumorFacial nerve injuryBony or other abnormalities that compress the nerve
Muscles of the Face
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Hemifacial spasm is more common in middle-aged and elderly women. It is also more common in Asians.
Intermittent twitching of the eyelid muscleForced closure of the eyeSpasms of the muscles of the lower faceMouth pulled to one sideContinuous spasms involving all the muscles on one side of the face
Your doctor will ask about your symptoms and medical history. A physical exam will be done. Tests may include: Electromyography
(EMG)—records electrical activity generated in muscle while contracting and relaxing
—uses contrast material to see blood vessels
Images of internal body structures may be taken with an
Talk with your doctor about the best treatment plan for you. Options include:
Your doctor may recommend antiseizure medications to help relieve symptoms.
into the affected muscles can stop eyelid spasm for several months. These injections must be repeated, usually several times a year.
Botulinum toxin injections are the treatment of choice.
Microvascular decompression surgery repositions the blood vessel away from the nerve. This is successful in cases of hemifacial spasm where the cause is suspected to be a blood vessel compressing the facial nerve.
There are no current guidelines to prevent hemifacial spasm.
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Digre K, Corbett JJ. Hemifacial spasm: differential diagnosis, mechanism, and treatment.
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Last reviewed July 2013 by Rimas Lukas, MD; Brian Randall, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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