Document Detail

Nocturnal onset and development of Bell's palsy.
MedLine Citation:
PMID:  15630375     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE/HYPOTHESIS: To examine the mechanism and pathophysiology of idiopathic peripheral facial palsy (Bell's palsy), the mode of onset of facial palsy was investigated. STUDY DESIGN: Retrospective case review. METHODS: We identified the point at which patients with facial palsy first noticed their illness using our medical charts for 648 patients and information from 3,580 facial palsy cases who visited an Internet site; we found that the time of a patient's first awareness of his or her illness was mentioned in 258 (204 Bell's palsy) and 53 cases, respectively. These cases were divided into three periods: morning, afternoon, and night. RESULTS: The ratio of morning:afternoon:night in the two groups was 141:30:33 and 50:0:3, respectively. These findings indicate that the majority of patients first noticed their palsy in the morning. CONCLUSION: Because several hours are required for facial palsy to develop before becoming apparent, this suggests that the onset and development of facial palsy occurred during sleep, when circulatory dynamics are reduced. In humans, ischemia is more likely to occur and produce facial palsy than virus reactivation.
Naoyuki Kanoh; Jun Nomura; Fumio Satomi
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Laryngoscope     Volume:  115     ISSN:  0023-852X     ISO Abbreviation:  Laryngoscope     Publication Date:  2005 Jan 
Date Detail:
Created Date:  2005-01-04     Completed Date:  2005-02-08     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8607378     Medline TA:  Laryngoscope     Country:  United States    
Other Details:
Languages:  eng     Pagination:  99-100     Citation Subset:  IM    
Department of Otolaryngology, Hyogo College of Medicine, Mukogawacho, Nishinomiya, Hyogo, Japan.
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MeSH Terms
Aged, 80 and over
Bell Palsy / diagnosis*
Child, Preschool
Circadian Rhythm*
Middle Aged

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