Bell's palsy is sudden, usually temporary weakness or paralysis of the muscles on one side of the face, caused by dysfunction of the nerve that controls them. It typically develops over hours to a couple of days and can affect the ability to close the eye, smile, or otherwise control facial expression on the affected side. Most cases improve substantially within weeks to months, and viral inflammation of the nerve is widely suspected as a cause, though the exact trigger in a given case is often not identified.
Facts
Classification
ICD-10 ChapterVI: Diseases of the Nervous System 1 Communicable or Non-communicable Transmission Route First DescribedAl-Razi and Ibn Sina are credited with earlier, undated descriptions of facial palsy; 1821 is recorded as the article's own credited first detailed description of the neuroanatomical basis, the event "Bell's palsy" derives its name and clinical identity from. Causative Agent
Causative Agent (category)Idiopathic / Multifactorial 3 Bell's Palsy
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Connections
Associated With
Acute facial nerve (cranial nerve VII) palsy; neurology specialty.
Treated By
Source Facial nerve decompression (Wikipedia)
Oral corticosteroids (prednisone) are the standard early treatment for Bell's palsy.
Source Prednisone (Wikipedia)
Sources
1. Wikipedia: ICD-10
WikipediaList of chapters, Chapter VIQuote, List of chapters, Chapter VI
Diseases of the nervous system
2. Wikipedia: Non-communicable disease
WikipediaLead section, transmission-route statement (inferred from disease-category)
NCDs include Parkinson's disease, autoimmune diseases, strokes, heart diseases, cancers, diabetes, chronic kidney disease, osteoarthritis, osteoporosis, Alzheimer's disease, cataracts, and others.
Named examples section
NCDs include Parkinson's disease, autoimmune diseases, strokes, heart diseases, cancers, diabetes, chronic kidney disease, osteoarthritis, osteoporosis, Alzheimer's disease, cataracts, and others.
View the Source 3. Bell's Palsy (Wikipedia)
Wikimedia FoundationWikipedia: Bell's Palsy, History section
Scottish neurophysiologist Sir Charles Bell read his paper to the Royal Society of London on July 12, 1821, describing the role of the facial nerve.
Infobox: causes
Unknown
View the Source Facial nerve decompression (Wikipedia)
Treated By: Facial Nerve Decompression, IndicationQuote, Treated By: Facial Nerve Decompression, Indication
The middle cranial fossa technique is most commonly used for the decompression of the facial nerve in Bell's palsy and longitudinal temporal bone fracture.
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