Qiuhang Zhang1, Zaixing Wang2, Hongchuan Guo3, Bo Yan3, Zhenlin Wang3, Hailiang Zhao2, Ronald Sahyouni4, Edward C Kuan4. 1. Skull Base Surgery Center, Department of Neurosurgery, Xuanwu Hospital Capital Medical University, Beijing, Peoples' Republic of China. Electronic address: 13701267977@163.com. 2. Longgang ENT Hospital, Shenzhen, Peoples' Republic of China. 3. Skull Base Surgery Center, Department of Neurosurgery, Xuanwu Hospital Capital Medical University, Beijing, Peoples' Republic of China. 4. Department of Otolaryngology-Head and Neck Surgery, University of California, Irvine Medical Center, Orange, California, USA.
Abstract
OBJECTIVE: Because of its vascular supply and neurovascular contents, the cavernous sinus (CS) is a challenging area to dissect in the setting of skull base tumors with intracavernous extension or invasion. In the present study, we report the clinical outcomes of 14 patients with tumors with CS invasion that were surgically treated using a direct transcavernous sinus approach for endoscopic endonasal resection of their intracavernous sinus tumors. METHODS: Fourteen patients had undergone surgery using a direct endoscopic endonasal transcavernous sinus approach. The pathologic entities included Knosp grade 3-4 pituitary adenomas (n = 8), meningioma (n = 3), squamous cell carcinoma (n = 2), and chondrosarcoma (n = 1). The indications, surgical technique, and outcomes are discussed. RESULTS: Gross total resection was achieved in 11 patients (78.6%). All patients experienced resolution or improvement of symptoms. One patient experienced a transient oculomotor nerve palsy, which had resolved within 2 months postoperatively. No other complications occurred. For those tumors that had been grossly resected, no recurrence developed in any patient (mean follow-up, 40.4 ± 24.8 months; range 10-84). CONCLUSIONS: Depending on the space created by intracavernous sinus tumors, use of the transanterior wall for the CS approach in endoscopic endonasal surgery could adequately treat most patients in our case series. This approach provided good visualization of the CS and can be used to treat tumors with favorable outcomes and a low incidence of complications in appropriately evaluated patients.
OBJECTIVE: Because of its vascular supply and neurovascular contents, the cavernous sinus (CS) is a challenging area to dissect in the setting of skull base tumors with intracavernous extension or invasion. In the present study, we report the clinical outcomes of 14 patients with tumors with CS invasion that were surgically treated using a direct transcavernous sinus approach for endoscopic endonasal resection of their intracavernous sinus tumors. METHODS: Fourteen patients had undergone surgery using a direct endoscopic endonasal transcavernous sinus approach. The pathologic entities included Knosp grade 3-4 pituitary adenomas (n = 8), meningioma (n = 3), squamous cell carcinoma (n = 2), and chondrosarcoma (n = 1). The indications, surgical technique, and outcomes are discussed. RESULTS: Gross total resection was achieved in 11 patients (78.6%). All patients experienced resolution or improvement of symptoms. One patient experienced a transient oculomotor nerve palsy, which had resolved within 2 months postoperatively. No other complications occurred. For those tumors that had been grossly resected, no recurrence developed in any patient (mean follow-up, 40.4 ± 24.8 months; range 10-84). CONCLUSIONS: Depending on the space created by intracavernous sinus tumors, use of the transanterior wall for the CS approach in endoscopic endonasal surgery could adequately treat most patients in our case series. This approach provided good visualization of the CS and can be used to treat tumors with favorable outcomes and a low incidence of complications in appropriately evaluated patients.
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