RESULS OF MICROSURGERY OF VESTIBULAR SCHWANNOMA IN BACH MAI HOSPITAL

Bùi Huy Mạnh1,, Bùi Xuân Cương2, Phạm Văn Cường3
1 Vietduc University Hospital
2 Hanoi Medical University
3 Bach Mai Hospital

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Abstract

Objective: Describe clinical symptoms, imaging, surgery result of the vestibular schwannoma microsurgery. Subjects and methods: a prospective cross-sectional descriptive study on 33 cases with diagnosis of vestibular schwannoma based on clinical symptoms, imaging, and pathological results treated at the Bach Mai hospital from June, 2019 to August, 2020. Results: Epidemiology: After 40 years old 66,7%, male:female = 1:2,3. Clinical symptoms: Headache, vomiting (60.6%). clear tumor boundary (90.9%), hyposignal on T1 (78.8%), hyper signal on T2 (93.9%). Gadolium contrast (84.9%), mixed density (69.7%). Tumor size is large and giant (Kanzaki classification) accounting for 60.6%. Postoperative results: no serious complications. Facial paralysis after surgery: including 8 patients with mild paralysis and 10 patients with severe paralysis. The rate and degree of facial paralysis increased higher in the group total resection. One patient with epidural hematoma, 03 patients with CSF leak (9.1%) were treated stably. Re-examination after 1 year: Reducing headache symptoms to 6.9%, reducing the rate of facial paralysis by 9.7%, MRI re-examination after 12 months: 12/33 patients have all tumors removed. The ability to completely remove the tumor depends on the size, but not the density, and the extent to which the tumor has spread to the base of the inner ear canal.

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References

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