PMID: 9546278Apr 18, 1998Paper

Is the presence of transient evoked otoacoustic emmissions in ears with acoustic neuroma significant?

The Laryngoscope
C Ferber-ViartR Duclaux

Abstract

One hundred sixty-eight patients admitted for acoustic neuroma removal were involved in this study. In all cases, the size of the tumor and the presence or absence of tinnitus and vertigo or dizziness were evaluated. Investigated functional procedures included bilateral measures of pure-tone audiometry (PTA), auditory brainstem response (ABR), electronystagmography (ENG), and transient evoked otoacoustic emissions (TEOAEs). Thirty-five patients (21%) had normal preoperative TEOAEs in the affected ear, whereas 133 patients (79%) failed to show reproducible responses. The aims of this study were 1. to evaluate what distinguishes patients with preoperative TEOAEs in the pathological ear (group A) from those who had no TEOAE (group B); and 2. to determine in cases of attempted hearing preservation whether preoperative TEOAE presence in the neuroma ear (group C) was predictive of postoperative hearing preservation compared with the group of patients without TEOAEs (group D). The presence of vertigo or dizziness was significantly less frequent, the age was lower, and preoperative mean PTA loss in both ears was lower in group A compared with group B. Frequency of the other studied parameters and ABR threshold were similar in both grou...Continue Reading

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Citations

Sep 18, 2003·American Journal of Otolaryngology·Thierry MorletChantal Ferber-Viart
Nov 2, 2006·Skull Base : Official Journal of North American Skull Base Society ... [et Al.]·David M BaguleyDavid A Moffat
Nov 4, 2008·Skull Base : Official Journal of North American Skull Base Society ... [et Al.]·Gregory P LekovicKris A Smith
May 11, 2002·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Hiroko MonobeToshihisa Murofushi
Aug 14, 2009·Expert Review of Neurotherapeutics·Wolf Mann, Haralampos T Gouveris
Feb 7, 2004·The Annals of Otology, Rhinology, and Laryngology·Shinichi IwasakiToshihisa Murofushi

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