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[Evaluation of the morphology of stapedial reflex in otosclerosis. Provoked otosclerotic stapedial reflex].

Authors
  • López González, M A
  • García López, M C
  • Rodríguez Muñoz, M L
Type
Published Article
Journal
Acta Otorrinolaringológica Española
Publisher
Elsevier
Publication Date
Jan 01, 2002
Volume
53
Issue
1
Pages
5–10
Identifiers
PMID: 11998519
Source
Medline
License
Unknown

Abstract

Stapedial reflex is used, amongst other pathologies, for the study of otosclerosis. In this retrospective study we have collected 188 cases of patients with otosclerosis whose diagnosis has been confirmed surgically and their first line relatives. We have performed a descriptive analysis of audiometric tests, tympanometries and ipsilateral stapedial reflexes in relation with the evolutive phase of the disease. Transmission hypoacusis has been seen in 54%, mixed hypoacusis in 29% and sensorineural hypoacusis 8% of cases. On and OFF stapedial reflexes have been seen in 18%, inverted reflexes in 46% and absent reflexes in 27% of cases. The original drawings of the different types of reflexes during the evolution of otosclerosis can be seen in the four figures shown in the study: normal reflexes; ON and OFF a, b and c types; inverted a and b; and absent reflexes. The clinical evolutive phase and the audiometric and impedance tests have been correlated. Through Chi-square (p < 0.001), we have obtained a statistical significance in relation to the use of stapedial reflexes. Also it has been suggested the use of provoked stapedial reflexes in patients with sub clinical otosclerosis in order to diagnose the disease. We conclude that the knowledge of the evolutive morphology os stapedial reflexes in otosclerosis helps diagnostic capacity.

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