PMID: 16636507Apr 26, 2006Paper

Optimal extent of resection in vestibular schwannoma surgery: relationship to recurrence and facial nerve preservation

Neurologia Medico-chirurgica
Ho Jun SeolHee-Won Jung

Abstract

Surgical treatment of vestibular schwannoma is targeted at complete removal with preserved neurological function. Complete removal may cause significant deficits, whereas subtotal tumor removal is associated with a high recurrence rate. The present study assessed the risk of tumor recurrence and postoperative facial nerve function in relation to the extent of surgical resection by reviewing the clinical records and radiological findings of 116 patients with vestibular schwannoma treated between 1990 and 1999. The extent of resection was classified as follows: gross total resection (GTR), near total resection (NTR), and subtotal resection (STR). Facial nerve function was graded using the modified House-Brackmann grade, and patients grouped into good (grades 1-2) and intermediate or poor (grades 3-6). Of the 116 patients, 26 (22%) underwent GTR, 32 (28%) NTR, and 58 (50%) STR. The recurrence rates were 3.8% (1/26 cases), 9.4% (3/32), and 27.6% (16/58) for GTR, NTR, and STR, respectively. GTR and NTR showed no statistically significant difference in terms of recurrence rate (p=0.620). However, recurrence was significantly less after NTR than STR (p=0.043). Immediately postoperative facial nerve function was good in 15.4% of patien...Continue Reading

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Citations

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Dec 1, 2009·Journal of Neurosurgery·Michael E SughrueAndrew T Parsa
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