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  • Title: Fully endoscopic combined transsphenoidal and supraorbital keyhole approach for parasellar lesions.
    Author: Nagata Y, Watanabe T, Nagatani T, Takeuchi K, Chu J, Wakabayashi T.
    Journal: J Neurosurg; 2018 Mar; 128(3):685-694. PubMed ID: 28452613.
    Abstract:
    OBJECTIVE Parasellar tumors that extend far laterally beyond the internal carotid artery or that are fibrous and adhere firmly to critical structures are difficult to remove totally via the endoscopic transsphenoidal approach alone. In such cases, a combined transsphenoidal-transcranial approach is effective to achieve maximal resection in a single stage. In this paper, a new minimally invasive surgical technique for complicated parasellar lesions, a fully endoscopic combined transsphenoidal-supraorbital keyhole approach, is presented. METHODS A retrospective review of patients who had been treated via a fully endoscopic combined transsphenoidal-supraorbital keyhole approach for complicated parasellar lesions was performed. The data for resection rate, perioperative mortality and morbidity, and postoperative outcomes were analyzed. RESULTS A total of 12 fully endoscopic combined transsphenoidal-supraorbital keyhole approaches were performed from March 2013 to February 2016; 10 were for pituitary adenomas and 2 were for craniopharyngiomas. Gross-total resection or near-total resection was achieved in 7 of 12 cases. Among the 11 patients who had presented with preoperative visual disturbances, 7 had visual improvement. However, 1 patient showed deterioration in visual function. No patient experienced postoperative hemorrhage, needed additional surgical treatment, or had postoperative CSF leakage. CONCLUSIONS In the combined transsphenoidal and transcranial approach, safe and effective cooperative manipulation with 2 surgical corridors can be performed for complicated parasellar lesions. The goal of this procedure is not to achieve gross-total resection, but to achieve safe resection. Moreover, this new surgical approach offers neurosurgeons a simpler operative field with less invasiveness than the conventional microscopic combined approach. The fully endoscopic combined endonasal-supraorbital keyhole approach is an efficacious procedure for complicated parasellar lesions with acceptable results.
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