// Tumor Nerve of Origin and Hearing Preservation Outcomes for Patients With Small Vestibular Schwannomas Undergoing Middle Fossa Craniotomy
單中心回顧：小型（≤15 mm）突發性前庭神經鞘瘤中，源自上前庭神經（SVN）之聽力保留83% vs 下前庭神經（IVN）49%，SVN≤5 mm為91%｜多變量分析顯示SVN≤5 mm對比>10 mm保留機率高7.5倍（95% CI 1.6–34.9）；面神經功能相近且SVN手術時間較短，提示對適合患者之早期顯微手術具臨床應用價值。
// This retrospective single-institution study evaluated hearing preservation after middle cranial fossa microsurgical resection in adults with small (≤15 mm) sporadic vestibular schwannomas, comparing tumors of superior (SVN) versus inferior vestibular nerve (IVN) origin. Hearing preservation (word recognition ≥50%) occurred in 83% of SVN tumors versus 49% of IVN tumors, and was highest (91%) for SVN tumors ≤5 mm. On multivariate analysis, SVN tumors ≤5 mm had a 7.5-fold higher likelihood of hearing preservation versus SVN tumors >10 mm (95% CI 1.6–34.9); facial nerve outcomes were similar and SVN tumors had shorter operative times, suggesting early surgery may benefit appropriate patients.
Published 2026年9月21日
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