air stimulation in tympanic perforation: inverted nystagmus study estimulação a ar na perfuração timpânica: estudo da inversão nistágmica

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ID: 162902
2009
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Abstract
Response inversion during warm air stimulation is the most controversial finding seen in caloric tests of individuals with tympanic membrane perforation. In such cases, very few studies explore the possible interferences found in the caloric test, bringing about controversies in the interpretation of test results. AIM: This paper aimed at analyzing warm air stimulation effects in individuals with tympanic membrane perforation in comparison with normal healthy controls. MATERIALS AND METHODS: Prospective, non-randomized study in which 48 individuals without vestibular complaints were assessed, 33 had one tympanic membrane perforated and 15 had no ear drum alteration. RESULTS: 39.39% of the individuals had response inversion found during the warm air test. In the absence of this phenomenon, nystagmus responses were symmetrical. CONCLUSION: Nystagmus responses to the caloric test in individuals with tympanic membrane perforation were similar to those from healthy controls, with the exception of the fact that they had inverted responses in the warm caloric test.
A inversão de respostas durante a estimulação a ar quente é o achado mais controverso que aparece na prova calórica de indivíduos com perfuração da membrana timpânica. Nestes casos, poucos estudos exploraram as possíveis interferências nos achados da prova calórica, trazendo controvérsias de interpretação no resultado do exame. OBJETIVO: Este trabalho teve o objetivo de analisar a estimulação calórica a ar em indivíduos com perfuração da membrana timpânica em comparação com indivíduos hígidos, sem esta alteração. MATERIAL E MÉTODO: Estudo prospectivo, não-randomizado, no qual foram avaliados 48 indivíduos sem queixas vestibulares, sendo 33 indivíduos com membrana timpânica perfurada unilateralmente e 15 indivíduos sem nenhuma alteração na membrana timpânica. RESULTADOS: 39,39% dos indivíduos apresentaram inversão de respostas na prova calórica a ar quente. Na ausência deste fenômeno as respostas das nistágmicas foram simétricas. CONCLUSÃO: As respostas nistágmicas na prova calórica em indivíduos com perfuração da membrana timpânica foram similares aos indivíduos hígidos, com exceção da presença de inversão de respostas na prova calórica quente.
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nishino2009brazilianair Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Lucia Kazuko Nishino;Lidio Granato;Carlos Kazuo Taguchi
Journal cardiovascular diabetology
Year 2009
DOI
10.1590/S1808-86942009000300016
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1808-86942009000300016
Keywords
air tympanic membrane perforation caloric testsotorhinolaryngology

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