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Hearing Outcome Following Microvascular Decompression for Hemifacial Spasm: Series of 1434 Cases.

Authors
 Na Young Jung  ;  Si Woo Lee  ;  Chang Kyu Park  ;  Won Seok Chang  ;  Hyun Ho Jung  ;  Jin Woo Chang 
Citation
 WORLD NEUROSURGERY, Vol.108(-) : 566-571, 2017 
Journal Title
 WORLD NEUROSURGERY 
ISSN
 1878-8750 
Issue Date
2017
MeSH
Adult ; Aged ; Electromyography ; Evoked Potentials, Auditory, Brain Stem ; Female ; Follow-Up Studies ; Hearing Loss/diagnosis ; Hearing Loss/etiology* ; Hearing Loss/physiopathology ; Hearing Loss/therapy ; Hemifacial Spasm/physiopathology ; Hemifacial Spasm/surgery* ; Humans ; Intraoperative Neurophysiological Monitoring ; Male ; Microvascular Decompression Surgery*/methods ; Middle Aged ; Postoperative Complications/diagnosis ; Postoperative Complications/physiopathology ; Postoperative Complications/prevention & control* ; Postoperative Complications/therapy ; Prognosis ; Retrospective Studies ; Young Adult
Keywords
Auditory ; Complication ; Hearing ; Hemifacial spasm ; Microvascular decompression
Abstract
OBJECTIVE: Although hearing impairment after microvasuclar decompression (MVD) for hemifacial spasm (HFS) is not common, its occurrence could detrimentally affect the patient's surgical outcome. The object of this study is to address the optimal approaches for reducing postoperative hearing problems after MVD for HFS. METHODS: We retrospectively analyzed the medical records of patients with HFS who underwent MVD with the same surgeon at our institute from March 2003 to October 2016, and reviewed the pertinent literature. Patients who were followed up for more than 6 months were selected, resulting in the analysis of 1434 total patients. Postoperative hearing complications were evaluated audiometrically and subjectively (patient-reported symptoms). Clinical factors such as the intraoperative findings were reviewed to identify their correlation with auditory function. RESULTS: Symptoms in 1333/1434 patients (93.0%) resolved more than 90% from their preoperative state. Among them, 16 patients (1.1%) complained of hearing impairment after surgery. Most impairment was transient, although 6/1333 patients (0.4%) required additional interventions for persistent hearing deficits (one surgical intervention and five hearing aids). A >50% decrease in the amplitude of brainstem auditory evoked potentials during the operation was significantly associated with postoperative hearing deficits. CONCLUSIONS: Few auditory complications, mostly transient, result from MVD. Although MVD is a commonplace surgical technique, to reduce complications it is important to emphasize the need for clean exposure of the lower cranial nerves (except for cranial nerve VIII) to obtain enough working space, sharp arachnoid dissection, minimal cerebellar retraction, and proper responses to changes identified during intraoperative monitoring.
Full Text
https://www.sciencedirect.com/science/article/pii/S1878875017315607
DOI
10.1016/j.wneu.2017.09.053
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
Yonsei Authors
Park, Chang Kyu(박창규)
Lee, Si Woo(이시우)
Chang, Won Seok(장원석) ORCID logo https://orcid.org/0000-0003-3145-4016
Chang, Jin Woo(장진우) ORCID logo https://orcid.org/0000-0002-2717-0101
Jung, Na Young(정나영)
Jung, Hyun Ho(정현호)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/161742
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