What does hemifacial spasm mean?
Definitions for hemifacial spasm
hemi·fa·cial spasm
This dictionary definitions page includes all the possible meanings, example usage and translations of the word hemifacial spasm.
Wikidata
Hemifacial spasm
Hemifacial spasm is a rare neuromuscular disease characterized by irregular, involuntary muscle contractions on one side of the face. The facial muscles are controlled by the facial nerve, which originates at the brainstem and exits the skull below the ear where it separates into five main branches. This disease takes two forms: typical and atypical. In typical form, the twitching usually starts in the lower eye lid in orbicularis oculi muscle. As time progresses, it spreads to the whole lid, then to the orbicularis oris muscle around the lips, and buccinator muscle in the cheekbone area. The reverse process of twitching occurs in atypical hemifacial spasm; twitching starts in orbicularis oris muscle around the lips, and buccinator muscle in the cheekbone area in the lower face, then progresses up to the orbicularis oculi muscle in the eyelid as time progresses. The most common form is the typical form, and atypical form is only seen in about 2–3% of patients with hemifacial spasm. The incidence of hemifacial spasm is approximately 0.8 per 100,000 persons. This disorder occurs in both men and women, although it affects middle-aged or elderly women more frequently. Hemifacial spasm is much more common in some Asian population. It may be caused by a facial nerve injury, a tumor, or it may have no apparent cause. Individuals with spasm on both sides of the face are very rare.
U.S. National Library of Medicine
Hemifacial Spasm
Recurrent clonic contraction of facial muscles, restricted to one side. It may occur as a manifestation of compressive lesions involving the seventh cranial nerve (FACIAL NERVE DISEASES), during recovery from BELL PALSY, or in association with other disorders. (From Adams et al., Principles of Neurology, 6th ed, p1378)
Numerology
Chaldean Numerology
The numerical value of hemifacial spasm in Chaldean Numerology is: 6
Pythagorean Numerology
The numerical value of hemifacial spasm in Pythagorean Numerology is: 9
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"hemifacial spasm." Definitions.net. STANDS4 LLC, 2024. Web. 28 Apr. 2024. <https://www.definitions.net/definition/hemifacial+spasm>.
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