Abstract
We studied the effects on distortion-product otoacoustic emissions (DPOAEs) of internal auditory canal (IAC) extension of acoustic neuromas (ANs) with the hypothesis that cochlear patterns of DPOAEs would be more commonly observed when the IAC was completely filled with tumor because of direct tumor involvement of either the inner ear or its blood supply. In a retrospective analysis of 86 patients with surgically proven ANs, DPOAEs were classified as having cochlear or noncochlear patterns on the basis of comparisons with the behavioral pure tone thresholds. The results of behavioral audiometry and DPOAEs were compared with the extension of the tumor into the IAC, which was categorized as full or partial. Of the 86 patients, 58 had tumors with full IAC extension, and 28 had tumors with partial IAC involvement. Cochlear patterns of DPOAEs were found in 55.2% of the tumors in the full IAC group and in 71.4% of those in the partial IAC group (not statistically different). It was concluded that the extent of IAC involvement by ANs was not significantly related to the negative effects of the tumor on cochlear function as represented by DPOAEs.
| Original language | English |
|---|---|
| Pages (from-to) | 912-915 |
| Number of pages | 4 |
| Journal | Annals of Otology, Rhinology and Laryngology |
| Volume | 111 |
| Issue number | 10 |
| State | Published - Oct 1 2002 |
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Keywords
- Acoustic neuroma
- Internal auditory canal
- Otoacoustic emissions
ASJC Scopus subject areas
- Otorhinolaryngology
Cite this
Effect of acoustic tumor extension into the internal auditory canal on distortion-product otoacoustic emissions. / Odabasi, A. Onur; Telischi, Fred F; Gomez-Marin, Orlando W; Stagner, Barden; Martin, Glen.
In: Annals of Otology, Rhinology and Laryngology, Vol. 111, No. 10, 01.10.2002, p. 912-915.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of acoustic tumor extension into the internal auditory canal on distortion-product otoacoustic emissions
AU - Odabasi, A. Onur
AU - Telischi, Fred F
AU - Gomez-Marin, Orlando W
AU - Stagner, Barden
AU - Martin, Glen
PY - 2002/10/1
Y1 - 2002/10/1
N2 - We studied the effects on distortion-product otoacoustic emissions (DPOAEs) of internal auditory canal (IAC) extension of acoustic neuromas (ANs) with the hypothesis that cochlear patterns of DPOAEs would be more commonly observed when the IAC was completely filled with tumor because of direct tumor involvement of either the inner ear or its blood supply. In a retrospective analysis of 86 patients with surgically proven ANs, DPOAEs were classified as having cochlear or noncochlear patterns on the basis of comparisons with the behavioral pure tone thresholds. The results of behavioral audiometry and DPOAEs were compared with the extension of the tumor into the IAC, which was categorized as full or partial. Of the 86 patients, 58 had tumors with full IAC extension, and 28 had tumors with partial IAC involvement. Cochlear patterns of DPOAEs were found in 55.2% of the tumors in the full IAC group and in 71.4% of those in the partial IAC group (not statistically different). It was concluded that the extent of IAC involvement by ANs was not significantly related to the negative effects of the tumor on cochlear function as represented by DPOAEs.
AB - We studied the effects on distortion-product otoacoustic emissions (DPOAEs) of internal auditory canal (IAC) extension of acoustic neuromas (ANs) with the hypothesis that cochlear patterns of DPOAEs would be more commonly observed when the IAC was completely filled with tumor because of direct tumor involvement of either the inner ear or its blood supply. In a retrospective analysis of 86 patients with surgically proven ANs, DPOAEs were classified as having cochlear or noncochlear patterns on the basis of comparisons with the behavioral pure tone thresholds. The results of behavioral audiometry and DPOAEs were compared with the extension of the tumor into the IAC, which was categorized as full or partial. Of the 86 patients, 58 had tumors with full IAC extension, and 28 had tumors with partial IAC involvement. Cochlear patterns of DPOAEs were found in 55.2% of the tumors in the full IAC group and in 71.4% of those in the partial IAC group (not statistically different). It was concluded that the extent of IAC involvement by ANs was not significantly related to the negative effects of the tumor on cochlear function as represented by DPOAEs.
KW - Acoustic neuroma
KW - Internal auditory canal
KW - Otoacoustic emissions
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UR - http://www.scopus.com/inward/citedby.url?scp=0036795938&partnerID=8YFLogxK
M3 - Article
C2 - 12389860
AN - SCOPUS:0036795938
VL - 111
SP - 912
EP - 915
JO - Annals of Otology, Rhinology and Laryngology
JF - Annals of Otology, Rhinology and Laryngology
SN - 0003-4894
IS - 10
ER -