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  • Title: Hearing results in retrolabyrinthine vestibular neurectomy.
    Author: Teixido M, Wiet RJ.
    Journal: Laryngoscope; 1992 Jan; 102(1):33-8. PubMed ID: 1731155.
    Abstract:
    Patients having retrolabyrinthine vestibular neurectomy (RLVN) may have complications that compromise hearing. While most reviews have emphasized sensorineural loss, less attention has been given to conductive hearing loss, which may complicate RLVN. Hearing results of 25 consecutive cases of RLVN performed for Meniere's disease with incapacitating vertigo were tabulated according to 1985 American Academy of Otolaryngology (AAO) guidelines. Nine patients (36%) had improved hearing postoperatively, 5 (20%) had no change in hearing, and 11 (44%) had worse hearing postoperatively. The most commonly observed audiometric change was low-frequency conductive hearing loss, presumably secondary to partial ossicular fixation by bone dust or fat fibrosis in the attic and antrum. Five patients (20%) had low-frequency conductive hearing losses that increased by 10 dB or greater over preoperative levels. An additional 7 patients had lesser losses at low frequencies. One patient had a flat conductive hearing loss. Six (24%) of the patients had a decrease in bone levels of greater than 10 dB. Overall hearing results in this study are comparable to those of other series in the literature. Causes and prevention of conductive hearing loss in RLVN are discussed, and a format for presentation of hearing data that will highlight conductive hearing loss after surgery for Meniere's disease is presented.
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