Türk Nöroşirürji Dergisi 2021 , Vol 31 , Num 2
Radiosurgery for Cranial AVF: Indications and Results
1Gazi Üniversitesi Tıp Fakültesi Beyin ve Sinir Cerrahisi Anabilim Dalı, Ankara, Türkiye Dural arteriovenous fistulas (DAVF) are composed of pathological connections between meningeal arteries and the dural venous sinus or subarachnoid veins. The clinical presentation of DAVF results from hemorrhage or ischemia. Cortical venous reflux is the critical prognostic parameter for clinical progress and treatment outcome. The outcome of patients with cortical venous reflux is much more severe than those without reflux. Surgical or endovascular treatment of a fistula provides acute occlusion that is much more appropriate for these patients. Radiosurgery obliterates the AVM by damaging endothelial cells and causes smooth muscle proliferation and deposits of calcium and collagen. Radiosurgery may be a treatment option for selected cases with these mechanisms. Anahtar Kelimeler : Radiosurgery, Arteriovenous fistula, Dural arteriovenous fistula