Resection of anterior clinoidal meningiomas via a pterional extradural approach / 中华神经医学杂志

ABSTRACT

Objective To investigate the application of pterional extradural approach in surgery of anterior clinoidal meningioma resection. Methods The clinical data and treatment efficacy of 17 patients with clinoidal meningiomas, admitted to our hospital and performed surgery via a pterional extradural approach from June 2007 to May 2010, were retrospectively analyzed. Results Of the 17 patients with clinoidal meningiomas, 12 received total removal of the tumors, 4 subtotal removal and 1 partial removal. Of the 15 patients with pre-operative visual failure, 11 were markedly improved in visual acuity and visual field, 3 with no obvious changes and 1 with hypopsia. No death was noted.Conclusion The pterional extradural approach in anterior clinoidal meningioma resection can help to block the blood supply to the tumor base and detach the infra-clinoidal tumor from the internal carotid artery.