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Hemifacial spasm is characterized by frequent involuntary twitching of one side of the face. This twitching or spasm usually starts around the eye and slowly progresses to involve the lower face.
The muscles in the forehead and neck are usually the last to be affected.
Most often, hemifacial spasm is caused by a blood vessel pressing on the facial nerve at the point where the nerve exits the brainstem.
UPMC neurosurgeons are among the most experienced in the U.S. in treating hemifacial spasm with microvascular decompression, which alleviates the spasms by moving the blood vessel away from the nerve.
Our doctors have refined this procedure since first implementing it nearly 40 years ago.
Today, UPMC neurosurgeons perform approximately 75 microvascular decompressions for hemifacial spasm each year, with 92 percent of people experiencing complete relief or dramatically improved symptoms. Surgery causes significant complications in fewer than 5 percent of cases.
Your doctor will perform a physical exam and will ask about any symptoms you are having.
Symptoms may include:
At UPMC, the treatment of choice for severe hemifacial spasm is microvascular decompression. Advances in instruments and techniques has made this treatment option more effective in recent years.
Microvascular decompression is a surgical procedure that relieves abnormal compression of a cranial nerve. The surgery consists of a linear incision behind the ear followed by a craniectomy (bony opening) the size of a silver dollar.
Under the view of a microscope or endoscope, the doctors detect the area where the blood vessel is affecting the nerve and then separate them, leaving a Teflon "pillow" in between.
During surgery, the doctors monitor facial nerve irritability to identify the blood vessel causing the nerve compression, making cure more likely. Monitoring also helps doctors to avoid damaging hearing and facial nerves.
Our neurosurgeons sometimes uses endoscopes that allow them to look around corners as they operate, identify hidden blood vessels, and minimize the impact on sensitive brain tissue.
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