Document Detail


Mixed Hearing Loss in Iatrogenic Tympanic Membrane Perforations over the Round Window Niche and the Immediate Effect of Paper Patch Myringoplasty.
MedLine Citation:
PMID:  22134194     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Objectives: Report the immediate audiologic effect of paper patch myringoplasty to repair iatrogenic tympanic membrane perforations directly over the round window. Methods: Retrospective case-control study of 15 patients treated for inner ear disease with a MicroWick and dexamethasone for 1 month, resulting in 2-mm perforations over the round window. Paper patch myringoplasties were performed to repair the perforations. Audiograms were performed before and immediately after the paper patch myringoplasty. Results: After paper patch placement, there was a significant improvement in air-bone gap at 250 (p < 0.001), 500 (p = 0.003), and 1000 Hz (p = 0.004) and a significant improvement in bone conduction (BC) threshold at 250 (p = 0.002), 500 (p < 0.001), 1000 (p = 0.002), 2000 (p = 0.003), and 3000 Hz (p = 0.02). Conclusions: Paper patch myringoplasty improves both air conduction and BC hearing from small perforations over the round window. The decrease in BC hearing is a result of middle ear mechanics and is not a true sensorineural hearing loss.
Authors:
Herbert Silverstein; Benjamin J Wycherly; D Spencer Darley; Yadiel A Alameda
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-01
Journal Detail:
Title:  Audiology & neuro-otology     Volume:  17     ISSN:  1421-9700     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-2     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9606930     Medline TA:  Audiol Neurootol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  155-160     Citation Subset:  -    
Copyright Information:
Copyright © 2011 S. Karger AG, Basel.
Affiliation:
Ear Research Foundation, Sarasota, Fla., USA.
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