Surgical outcome of the sphenoid meningiomas at Viet Duc University Hospital

Nguyễn Đức Anh, Kiều Đình Hùng

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Abstract

Sphenoid wing meningiomas poses a challenge for radical resection due to the complex anatomy of the sphenoid region. In Vietnam, the sphenoid ridge meningioma patients usually are admitted to the hospital when their tumors are large in size and already invade the skull base structures. This study aims to evaluate the surgical outcome of middle and medial sphenoid ridge meningiomas. A prospective case series was implemented at Viet Duc University Hospital from 8/2017 to 7/2020. We used the convenience sampling. Inclusion criteria were patients diagnosed with middle and medial sphenoid ridge meningiomas based on clinical manifestations and imaging findings. Exclusion criteria were recurrence or reoperating or multiple meningiomas. There were 29 cases reported. The results showed that patients were admitted to the hospital due to increased intracranial pressure (72.4%), headache (69%), and visual defect (24.1%). Common age is 50.5. There are 79.3% of patients with meningiomas in the inner part of the sphenoid wing, of which 31% (16/29) have skull destruction over 6 cm. Brain edema around tumor accounts for 79.3%. All 29 cases were taken DSA or MS CT or angio MRI before surgery. 16/29 need debulking, the remaining 13 cases have full resection. 2/29 patients (6.9%) died after surgery. 6/29 patients (20.7%) had atypical meningiomas (grade II). Classification Karnofsky after surgery has 86.2% of cases belonging to the good group. Classification Karnofsky 3 months after surgery has 79.3% of cases belonging to the good group. In conclusion: Most of the sphenoid ridge meningiomas were grade I on histology. However, the tumors are usually large on admission. The radical resection gradually becomes more challenge than ever.

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