Abstract

BackgroundOlfactory groove meningioma (OGM) is characterized by slow-growing tumors that are frequently bilateral as opposed to unilateral & asymmetrical and may cause progressive frontal lobe compression. We aimed to evaluate the value of extradural devascularization as a golden step in bilateral subfrontal approach in management of OGM.ResultsThe mean operative time was 158.32 ± 24.88. Blood loss ranged from 500 to 1000 cc with a mean value of 763.64 ± 155.98. The number of patients requiring blood transfusion was 5 (22.7%). Based on Simpson classification, 19 (86.4%) patients had whole tumor excision (grade I, II) & 3 (13.6%) patients had grade III and IV. The incidence of complications among the studied patients is: CSF leak did not occur to any case, pneumocephalus occurred in 1 (4.5%) patient, anosmia occurred in 1 (4.5%) patient, focal CNS deficit occurred in 1 (4.5%) patient, wound infection occurred in 1 (4.5%) patient and hematoma occurred in 1 (4.5%) patient. Only 1 (4.5%) case died due to pulmonary embolism, whereas behavioral manifestations occurred in 9.09% of patients.ConclusionsThe extradural devascularization is a golden step in this approach in management of OGM associated with lower incidence of blood loss intraoperatively (total blood loss was 500–1000 mL, recurrence rate, mortality and additional neurological deficits postoperatively.

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