Analysis of the key points of neuroendoscopic transcranial resection for cerebellopontine angle tumors

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Objective To summarize the key points of neuroendoscopic transcranial resection for cerebellopontine angle (CPA) tumors. Methods Twenty⁃eight patients with CPA tumors diagnosed and treated in Xiangya Hospital Central South University from January 2019 to December 2020 were included, and all of them underwent neuroendoscopic transcranial surgery to remove CPA tumors. Results All the 28 patients were successfully treated with neuroendoscopic transcranial resection of tumors in CPA region, and the tumors were totally removed. After operation, 9 cases of acoustic neuroma, 8 cases of meningioma, 9 cases of cholesteatoma, one case of hemangioblastoma, and one case of trigeminal neurinoma were confirmed by postoperative pathology. Postoperative facial nerve function was grade Ⅲ in 3 cases, grade Ⅱ in 6 cases, and grade Ⅰ in 19 cases. One patient had no obvious recovery of auditory nerve function injury, and 2 patients had dizziness, vertigo and nausea after operation. No complications such as cerebrospinal fluid leakage, meningitis and incision infection occurred, and no death occurred. At 3 months of follow ⁃ up, no tumor recurrence was seen on MRI, and no new neurological symptoms occurred. Conclusions Neuroendoscopic transcranial resection of CPA tumors has many advantages, but also has some shortcomings, and has a good development in the future.

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