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Year : 2020  |  Volume : 15  |  Issue : 3  |  Page : 653-659

Closure of skull base defects after endonasal endoscopic resection of planum sphenoidale and tuberculum sellae meningiomas

1 Department of Otolaryngology, Irmandade of Santa Casa de Misericórdia of São Paulo; Faculty of Medical Sciences of Santa Casa of São Paulo, SP, Brazil
2 Faculty of Medical Sciences of Santa Casa of São Paulo; Discipline of Neurosurgery, Department of Surgery, Irmandade of Santa Casa of Misericórdia of São Paulo, SP, Brazil
3 Faculty of Medical Sciences of Santa Casa of São Paulo; Departament of de Radiology, Irmanadade of Santa Casa of Misericórdia of São Paulo, SP, Brazil

Correspondence Address:
Dr. Williams Escalante Encinas
R. Dr. Cesário Mota Jr., 112 - Pavilhão Conde de Lara, SP
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ajns.AJNS_62_20

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Background: The expanded endoscopic endonasal transplanum transtuberculum approach allows tumor removal by minimally invasive procedures. A large dural and bone defect is created during the surgical procedure, increasing the risk of postoperative cerebrospinal fluid (CSF) leakage. Objective: The aim of this study is to describe a surgical technique and complications observed in patients undergoing endonasal resection of planum sphenoidale and/or tuberculum sellae meningiomas. Methods: A retrospective analysis was performed of patients with planum sphenoidale and/or tuberculum sellae meningiomas after expanded endoscopic endonasal resection between June 2013 and August 2018, in which autologous grafts, fascia lata inlay, and nasoseptal flap onlay were used for closure of skull base defects. Results: Ten patients were included in the analysis. No cases of postoperative CSF leakages or meningitis were reported, whereas two patients evolved with postoperative infectious complications (fungal ball in right frontal sinus and brain abscess). The skull base defect created for resection measured, on average, 3.58 cm2. Conclusion: Our experience suggests that closure of skull base defects using combined fascia lata inlay and nasoseptal flap onlay is effective for preventing postoperative CSF leakage in resection of planum sphenoidale and/or tuberculum sellae meningiomas, and offers high reproducibility due to its low cost.

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