Clinical experience with acoustic neuroma resection through suboccipito-retrosigmoid keyhole approach

VernacularTitle:经枕下乙状窦后锁孔入路治疗听神经瘤的临床体会
Author: Zhi-Bin LI ¹ ; Ge HUANG ; Jia-Jun DONG
Author Information

1. 广东省江门市中心医院
Keywords: Acoustic neuroma; Retrosigmoid approach; Keyhole; Bone flap replacement
From: Chinese Journal of Neuromedicine 2009;8(6):595-597
CountryChina
Language:Chinese
Abstract: Objective To summarize the clinical experience with acoustic neuroma resection via the suboccipito-retrosigmoid keyhole approach. Methods Thirty-eight patients with acoustic neuroma received surgical tumor resection via the suboccipito-retrosigmoid keyhole approach. During the operation, a small vertical incision was made at 1.5 cm medial to the posterior margin of the sigmoidal sinus to prepare a bone window 2.5-3.0 em in diameter. The bone flap was reduced and fixed after the tumor resection. Results Total tumor resection was performed in 33 cases, and 5 cases had subtotal resection. Anatomical preservation of the facial nerve was achieved in 35 cases and hearing was preserved in 2 cases, No death occurred in these cases. Cerebrospinal fluid leakage occurred after the operation in 1 ease. No patients required blood infusion during the operation, nor was subcutaneous effusion found after the operation. Conclusion Acoustic neuroma can be safely and effectively resected via the suboccipito-retrosigmoid keyhole approach, which allows good exposure of the tumor and causes minimal invasiveness.