{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,25]],"date-time":"2026-02-25T22:04:42Z","timestamp":1772057082944,"version":"3.50.1"},"reference-count":10,"publisher":"FapUNIFESP (SciELO)","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Arq. Neuro-Psiquiatr."],"published-print":{"date-parts":[[1997]]},"abstract":"<jats:p>The idiopathic facial paralysis or Bell's palsy installs abruptly or within a few hours, without any apparent cause. It corresponds to approximately 75% of all peripheral facial palsies. Three theories try to explain its pathogenecity: vascular-ischemic, viral and auto-immune. We reviewed the records of the EMG Sector, Hospital do Servidor P\u00fablico Estadual (S\u00e3o Paulo, Brazil), from 1985 to 1995 and found 239 cases of Bell's palsy. Data were analysed according to age, gender, seasonal distribution of cases. There was a predominance of cases in the 31 - 60 age bracket (40.59 %). The female gender was responsible to 70.71 % of cases. There was a predominance of cases in winter (31.38 %) and autumn (30.13 %), which was statiscally significant. These findings let us to suppose that Bell's palsy predominates in females, in 41-60 years age bracket, and occurs predominantly in cold months. There are groups of clusters throughout temporal distribution of cases and cases are dependent on one each other or on factors affecting them all, which reinforces the infectious hypothesis (there is a rise in the incidence of viral upper respiratory tract infection during cold months).<\/jats:p>","DOI":"10.1590\/s0004-282x1997000500007","type":"journal-article","created":{"date-parts":[[2010,10,16]],"date-time":"2010-10-16T21:12:58Z","timestamp":1287263578000},"page":"722-727","source":"Crossref","is-referenced-by-count":10,"title":["Clusters of Bell's palsy"],"prefix":"10.1590","volume":"55","author":[{"given":"Thiago D.","family":"Gon\u00e7alves-Co\u00ealho","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Carlos Newton D.","family":"Pinheiro","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ezon V.A.P.","family":"Ferraz","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jos\u00e9 Luiz","family":"Alonso-Nieto","sequence":"additional","affiliation":[{"name":"FMO"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"530","reference":[{"key":"ref1","doi-asserted-by":"crossref","first-page":"653","DOI":"10.1001\/jama.1974.03230190045013","article-title":"Nonepidemic incidence of idiopathic facial paralysis: seasonal distribution of 419 cases in three years","volume":"227","author":"Adour KK","year":"1974","journal-title":"JAMA","ISSN":"https:\/\/id.crossref.org\/issn\/0098-7484","issn-type":"print"},{"key":"ref2","doi-asserted-by":"crossref","first-page":"60","DOI":"10.1590\/S0004-282X1992000100011","article-title":"M: Paralisia facial perif\u00e9rica em Petr\u00f3polis","volume":"50","author":"Almeida MA","year":"1992","journal-title":"Arq Neuropsiquiatr","ISSN":"https:\/\/id.crossref.org\/issn\/0004-282X","issn-type":"print"},{"key":"ref3","first-page":"13","author":"Buzelle R","year":"1988"},{"key":"ref4","series-title":"Paralisia facial perif\u00e9rica isolada: uma condi\u00e7\u00e3o controversa","author":"Fortes-R\u00eago J.","year":"1991"},{"key":"ref5","doi-asserted-by":"crossref","first-page":"1064","DOI":"10.1097\/00043764-199211000-00006","article-title":"An investigation of a workplace cluster of Bell's palsy","volume":"34","author":"Frumkim H","year":"1992","journal-title":"JOM"},{"key":"ref6","first-page":"258","article-title":"Incidence and prognosis of Bell's palsy in the population of Rochester, Minnesota","volume":"46","author":"Hauser WA","year":"1971","journal-title":"Mayo Clin Proc","ISSN":"https:\/\/id.crossref.org\/issn\/0025-6196","issn-type":"print"},{"key":"ref7","doi-asserted-by":"crossref","first-page":"1105","DOI":"10.1212\/WNL.16.11.1105","article-title":"Bell's palsy: two disease entities?","volume":"16","author":"Leibowitz U","year":"1966","journal-title":"Neurology","ISSN":"https:\/\/id.crossref.org\/issn\/0028-3878","issn-type":"print"},{"key":"ref8","doi-asserted-by":"crossref","first-page":"109","DOI":"10.1093\/brain\/92.1.109","article-title":"Epidemic incidence of Bell's palsy","volume":"92","author":"Leibowitz U","year":"1969","journal-title":"Brain","ISSN":"https:\/\/id.crossref.org\/issn\/0006-8950","issn-type":"print"},{"key":"ref9","doi-asserted-by":"crossref","first-page":"414","DOI":"10.1590\/S0034-89101992000600007","article-title":"Assessment of a strategy to control respiratory diseases in children","volume":"26","author":"Pereira JCR","year":"1992","journal-title":"Rev Sa\u00fade P\u00fabl","ISSN":"https:\/\/id.crossref.org\/issn\/0034-8910","issn-type":"print"},{"key":"ref10","first-page":"9","article-title":"Paralisia facial perif\u00e9rica isolada: da incid\u00eancia e dos fatores progn\u00f3sticos","volume":"12","author":"Testa JRG","year":"1993","journal-title":"Acta AWHO","ISSN":"https:\/\/id.crossref.org\/issn\/0103-555X","issn-type":"print"}],"container-title":["Arquivos de Neuro-Psiquiatria"],"original-title":[],"link":[{"URL":"http:\/\/www.scielo.br\/pdf\/anp\/v55n4\/07.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2017,5,21]],"date-time":"2017-05-21T05:41:42Z","timestamp":1495345302000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.scielo.br\/scielo.php?script=sci_arttext&pid=S0004-282X1997000500007&lng=en&tlng=en"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1997]]},"references-count":10,"journal-issue":{"issue":"4","published-print":{"date-parts":[[1997]]}},"alternative-id":["S0004-282X1997000500007"],"URL":"https:\/\/doi.org\/10.1590\/s0004-282x1997000500007","relation":{},"ISSN":["0004-282X"],"issn-type":[{"value":"0004-282X","type":"electronic"}],"subject":[],"published":{"date-parts":[[1997]]}}}