Extended preoperative polyvinyl alcohol microembolization of intracranial meningiomas: assessment of two embolization techniques.

Abstract

Extended microembolization with 50- to 150-microns PVA particles improves the surgical treatment of meningiomas, as compared with larger particle embolization. It may also be the only treatment required in older or high-risk patients. The protective effect of steroid medication before the endovascular treatment of meningiomas is suggested by our study.