Bell's palsy overview
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Bell's palsy Microchapters |
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Diagnosis |
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Bell's palsy overview On the Web |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mohamadmostafa Jahansouz M.D.[2]
Historical Perspective
The first comprehensive description of Bell's palsy was first discovered by Abū Bakr Muhammad ibn Zakariyyā al-Rāzī, a Persian polymath, physician, alchemist, philosopher, in 9th century, although Sir Charles Bell, a Scottish surgeon, was the first to provide the anatomic basis for the condition that bears his name in 1821. For the fiest time, Razi provided accurate descriptions of facial muscles disorders. Razi describes a clinical method for distinguishing spasm and paralysis for the first time. In 9th century, the therapy of Bell's palsy was developed by Abū Bakr Muhammad ibn Zakariyyā al-Rāzī. In 1821, Sir Charles Bell described the lesions of the seventh cranial nerve produce facial paralysis. Bell described the Bell's palsy is caused by problem of 7th cranial nerve(facial nerve).
Classification
Bell's palsy may be classified into five categories according to laterality and recurrence and alternating of the palsy include: unilateral nonrecurrent, unilateral recurrent, simultaneous bilateral, alternating bilateral and recurrent bilateral type.