Prognostic significance of electrophysiological tests for facial nerve outcome in vestibular schwannoma surgery

被引:0
作者
van Dinther, J. J. S. [1 ]
Van Rompaey, V. [1 ]
Somers, T. [1 ]
Zarowski, A. [1 ]
Offeciers, F. E. [1 ]
机构
[1] Sint Augustinus Hosp, Univ Dep Otorhinolaryngol & Head & Neck Surg, Antwerp Skull Base Ctr, B-2610 Antwerp, Belgium
来源
B-ENT | 2011年 / 7卷 / 02期
关键词
Vestibular schwannoma; microsurgery; facial nerve; electromyography; ACOUSTIC NEUROMA SURGERY; MAGNETIC STIMULATION; ELECTRONEUROGRAPHY; PRESERVATION; MANAGEMENT;
D O I
暂无
中图分类号
R76 [耳鼻咽喉科学];
学科分类号
100213 ;
摘要
Prognostic significance of electrophysiological tests for facial nerve outcome in vestibular schwannoma surgery. Objective: To assess the prognostic significance of pre-operative electrophysiological tests for facial nerve outcome in vestibular schwannoma surgery. Methodology: Retrospective study design in a tertiary referral neurology unit. We studied a total of 123 patients with unilateral vestibular schwannoma who underwent microsurgical removal of the lesion. Nine patients were excluded because they had clinically abnormal pre-operative facial function. Pre-operative electrophysiological facial nerve function testing (EPhT) was performed. Short-term (I month) and long-term (1 year) post-operative clinical facial nerve function were assessed. Results: When pre-operative facial nerve function, evaluated by EPhT, was normal, the outcome from clinical follow-up at 1-month post-operatively was excellent in 78% (i.e. HB I-II) of patients, moderate in 11% (i.e. HB III-IV), and bad in 11% (i.e. HB V-VI). After I year, 86% had excellent outcomes, 13% had moderate outcomes, and 1% had bad outcomes. Of all patients with normal clinical facial nerve function, 22% had an abnormal EPhT result and 78% had a normal result. No statistically significant differences could be observed in short-term and long-term post-operative facial function between the groups. Conclusion: In this study, electrophysiological tests were not able to predict facial nerve outcome after vestibular schwannoma surgery. Tumour size remains the best pre-operative prognostic indicator of facial nerve function outcome, i.e. a better outcome in smaller lesions.
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页码:115 / 119
页数:5
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