Long-term hearing preservation after microsurgical excision of vestibular schwannoma

Erika Ann Woodson; Ryan Douglas Dempewolf; Samuel Paul Gubbels; Aaron Thomas Porter; Jacob Jay Oleson; Marlan Rex Hansen; Bruce Jay Gantz

doi:10.1097/mao.0b013e3181edb8b2

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Long-term hearing preservation after microsurgical excision of vestibular schwannoma

Journal article

Open access

Peer reviewed

Long-term hearing preservation after microsurgical excision of vestibular schwannoma

Erika Ann Woodson, Ryan Douglas Dempewolf, Samuel Paul Gubbels, Aaron Thomas Porter, Jacob Jay Oleson, Marlan Rex Hansen and Bruce Jay Gantz

Otology & neurotology, Vol.31(7), pp.1144-1152

09/2010

DOI: 10.1097/mao.0b013e3181edb8b2

PMCID: PMC3641783

PMID: 20679955

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https://www.ncbi.nlm.nih.gov/pmc/articles/3641783View

Open Access

Abstract

To examine long-term hearing outcomes after microsurgical excision of vestibular schwannoma (VS). Retrospective case review. Tertiary referral center. Forty-nine subjects at a single institution who had undergone microsurgical excision of a VS via middle cranial fossa (MCF) approach between 1994 and 2007 with immediate postoperative (PO) hearing preservation and for whom long-term audiograms were available. Diagnostic. Word Recognition Score (WRS) is defined by speech discrimination scores (SDS) greater than 70% (grade I), 50% to 70% (grade II), less than 50% (grade III), and 0% (grade IV). For subjects with more than 2 years of follow-up, WRS I hearing was present PO in 42 of 49 patients and was preserved at the latest follow-up in 38 (90%) of 42 patients. No subjects fell beyond WRS II. WRS I hearing was maintained in 23 (88%) of 26 patients with more than 5 years of follow-up. Postoperative WRS I to II hearing was maintained in 28 (96%) of 29 patients with more than 5 years of follow-up. The patient who lost significant hearing in the ear operated on had sensorineural hearing loss that paralleled deterioration in her ear that was not operated on. Most subjects maintain their initial PO SDS after microsurgical VS removal, and therefore, the initial PO WRS is predictive of long-term hearing. Postsurgical changes do not alter the natural rate or pattern of progressive bilateral sensorineural hearing loss in individual subjects.

Cranial Nerve Neoplasms - radiotherapy

Neuroma, Acoustic - radiotherapy

Follow-Up Studies

Otologic Surgical Procedures - methods

Humans

Middle Aged

Male

Cranial Nerve Neoplasms - surgery

Hearing Loss, Sensorineural - psychology

Neuroma, Acoustic - physiopathology

Young Adult

Cranial Nerve Neoplasms - physiopathology

Microsurgery

Adult

Female

Functional Laterality - physiology

Retrospective Studies

Data Interpretation, Statistical

Kaplan-Meier Estimate

Neuroma, Acoustic - surgery

Treatment Outcome

Auditory Threshold

Speech Perception - physiology

Hearing

Algorithms

Hearing Loss, Sensorineural - etiology

Audiometry, Pure-Tone

Aged

Details

Title: Subtitle: Long-term hearing preservation after microsurgical excision of vestibular schwannoma
Creators: Erika Ann Woodson - Department of Otolaryngology, University of Iowa Hospitals and Clinics, Iowa City, Iowa 52242-1078, U.S.A
Ryan Douglas Dempewolf
Samuel Paul Gubbels
Aaron Thomas Porter
Jacob Jay Oleson
Marlan Rex Hansen
Bruce Jay Gantz
Resource Type: Journal article
Publication Details: Otology & neurotology, Vol.31(7), pp.1144-1152
DOI: 10.1097/mao.0b013e3181edb8b2
PMID: 20679955
PMCID: PMC3641783
NLM abbreviation: Otol Neurotol
ISSN: 1531-7129
eISSN: 1537-4505
Publisher: United States
Grant note: P50 DC000242 / NIDCD NIH HHS UL1 RR025011 / NCRR NIH HHS R01 DC009801 / NIDCD NIH HHS
Language: English
Date published: 09/2010
Academic Unit: Molecular Physiology and Biophysics; Biostatistics; Neurosurgery; Otolaryngology
Record Identifier: 9983997329602771

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