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Endoscopic Endonasal Approach for Anterior Skull Base Lesions
Dept. of Otorhinolaryngology-Head and Neck Surgery1, Dept. of Neurosurgery2,Center for Minimally Invasive Skull Base Surgery3, Seoul National Univ. College of Medicine, Seoul National Univ. Hosp., Dept. of Otorhinolaryngology-Head and Neck Surgery4, Seoul National Univ. College of Medicine, Seoul National Univ. Bundang Hosp.
Jae Hyun LIM, Jae Hyun LIM1, Jae Joon HAN1, Yoon-Seok CHOI1, Doo Hee HAN1, Dong-Young KIM1, Chae-Seo RHEE4, Chul Hee LEE4, Young Hwy KIM2, Sun Ha PAEK23, Tae-Bin WON13
¸ñÀû: Endoscopic endonasal approach (EEA) is an alternative to the conventional open approach for lesions involving the ASB. Aims of this study were to analyze clinical features and treatment results of EEA for ASB lesions. ¹æ¹ý:Patients with ASB lesions who underwent an EEA from 2010 through 2014 at Seoul National University Hospital and Seoul National University Bundang Hospital with at least 6 month follow-up were included. Clinical features and treatment results were analyzed retrospectively. °á°ú:A total of 31 patients were included. The most common pathology was olfactory neuroblastoma (35.5%), olfactory groove meningioma (19.4%), squamous cell carcinoma (12.9%) and malignant melanoma (12.9%). Mean follow-up duration was 32.3 ¡¾ 17.9 month. The overall 3-year survival rate for malignant tumors was 89.8 % with a local recurrence rate of 9.7%. Recurrence was associated with histology. Postoperative complications included intracranial hemorrhage (6.5%), CSF leakage (3.2%) and pneumocephalus (3.2%). °á·Ð:Although it has its limitations the EEA is a promising approach for managing selected cases of ASB lesions.


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