RESULTS OF PRESERVING FACIAL NERVE FUNCTION IN SURGERY VESTIBULAR SCHWANNOMA USING NEURO INTRAOPERATION MONITORING AT HANOI MEDICAL UNIVERSITY HOSPITAL

Minh Tân Hoàng1,, Thị Hương Giang Nguyễn1
1 Hanoi medical university hospital

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Abstract

Objectives: To evaluate the effectiveness of preserving facial nerve function in surgery of vestibular schwannoma using neuro intraoperation monitoring. Materials and methods: The patient underwent surgery for vestibular schwannoma at Hanoi Medical University Hospital using the NIM system. Results: The mean age of the study group was 34.5±10.6. Men accounted for 38.9%, women accounted for 61.1%. The main clinical symptoms are dizziness (16/18) and gait disturbance (13/18). On magnetic resonance imaging, there are 5 patients with T3 level, 13 patients with T4 level. There are 3/5 patients with T3 having almost all tumors, 2/5 taking part of the tumor. 7/13 T4 patients took most of the tumor, 6/13 took part of the tumor. There are 3/18 patients with bleeding complications after surgery. For grade T3 tumors, there are 2/5 cases without facial paralysis, 2/5 cases of grade II facial paralysis, 1/5 cases of grade III facial paralysis. For grade T4 tumors, there were 3/13 cases without facial paralysis, 3/13 cases of grade II facial paralysis, 6/13 cases of grade III facial paralysis. Conclusion: Among the factors related to the degree of facial paralysis after surgery for chordoma VIII, the tumor size plays the most important role. The larger the tumor, the higher the rate of facial paralysis after surgery

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References

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