Otomicroscopic and histologic findings of induced myringosclerosis in rats: a critical study of an experimental model.

Abstract:

UNLABELLED:Myringosclerosis is characterized by hyaline changes of the lamina propria of the tympanic membrane. Experimental studies have used otomicroscopy or histology to evaluate myringosclerosis in animals, but they do not correlate precisely these two methods. AIM:The present study evaluates the accuracy of otomicroscopy in the diagnosis of myringosclerosis in rats. STUDY DESIGN:Experimental. MATERIAL AND METHOD:Myringosclerosis was induced by transtympanic inoculation of Streptococcus pneumoniae in 25 Wistar rats, which were examined weekly through otomicroscopy and sacrificed after eight weeks for histologic study of their tympanic membranes. RESULTS:From the comparison of the otomicroscopic data in relation to the histologic findings, we could observe sensibility of 80% and specificity of 75% for the otomicroscopy. CONCLUSION:Considering the results in this study, otomicroscopy did not represent a good method to evaluate myringosclerosis in this experimental model.

authors

Santos PF,Leal MC,Peixoto C,Caldas Neto S,Rosas ST

doi

10.1016/s1808-8694(15)31272-6

subject

Has Abstract

pub_date

2005-09-01 00:00:00

pages

668-74

issue

5

eissn

1808-8694

issn

1808-8686

pii

S1808-8694(15)31272-6

journal_volume

71

pub_type

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