Microsurgical Treatment of Intracranial Dural Arteriovenous Fistula and Prognosis Analysis
Microsurgical Treatment of Intracranial Dural Arteriovenous Fistula and Prognosis Analysis 1. Meaning of Intracranial Dural Arteriovenous Fistula (DAVF) An intracranial dural arteriovenous fistula (DAVF) is an abnormal vascular condition in which arteries directly connect to veins within the dura mater (the outer protective membrane of the brain). Normally, blood flows from arteries to capillaries and then to veins. However, in DAVF, this normal pathway is disrupted, causing blood to flow directly from arteries into veins under high pressure. This abnormal circulation can lead to serious neurological problems such as brain hemorrhage, seizures, headaches, and neurological deficits. DAVFs are often acquired conditions and may result from venous sinus thrombosis, trauma, surgery, or infections. Because of the potential for life-threatening complications, early diagnosis and appropriate treatment are crucial. 2. Introduction to Microsurgical Treatment Microsurgical treatment i...