Document Detail

Sensorineural high-frequency hearing loss after drill-generated acoustic trauma in tympanoplasty.
MedLine Citation:
PMID:  2590036     Owner:  NLM     Status:  MEDLINE    
Tympanoplasty can cause a sensorineural hearing loss by a mechanism of acoustic trauma. Although this lesion appears to be relatively infrequent in clinical practice, we believe that its low apparent incidence is caused when clinicians fail to assess the auditory frequencies above 8000 Hz. Twenty-four patients with normal bone-conduction audiometric thresholds scheduled for tympanoplasty were assessed with an electro-stimulation, bone-conduction high-frequency audiometer which can measure hearing frequencies up to 20 kHz before and after surgery. A measurable hearing loss was found in the upper limits of the audible frequencies in 9 patients (37.5%), and was considered important in 4 of them (16.7%). This hearing loss was recorded above the upper frequency limit of conventional audiometers. The findings in this study indicate that drilling of the temporal bone can impair the hearing level in the high frequencies in a significant number of patients. High-frequency audiometry is a very sensitive tool to assess any damage caused to the inner ear by surgical procedures carried out in the middle ear and temporal bone.
J Doménech; M Carulla; J Traserra
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Archives of oto-rhino-laryngology     Volume:  246     ISSN:  0302-9530     ISO Abbreviation:  Arch Otorhinolaryngol     Publication Date:  1989  
Date Detail:
Created Date:  1990-01-09     Completed Date:  1990-01-09     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0414105     Medline TA:  Arch Otorhinolaryngol     Country:  GERMANY, WEST    
Other Details:
Languages:  eng     Pagination:  280-2     Citation Subset:  IM    
Department of ORL, Faculty of Medicine, University of Barcelona, Spain.
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MeSH Terms
Audiometry, Pure-Tone
Auditory Threshold / physiology
Bone Conduction / physiology
Hearing Loss
Hearing Loss, High-Frequency / diagnosis*
Hearing Loss, Noise-Induced / diagnosis*
Middle Aged
Postoperative Complications / diagnosis*
Tympanoplasty / instrumentation*

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