Arteriovenous fistulas are widely used for hemodialysis patients with end-stage renal failure. Due to the lack of suitable veins because of the arteriovenous fistulas previously opened in the upper extremity, alternative access routes are being tested. Few complications of long-term alternative arteriovenous fistulas have been reported in the literature. We report the results of surgical repair...

Neurology and Neurosurgery Depar tment of Hospital Municipal Dr. Mário Gatti, Campinas SP, Brasil: Resident of Neurosurgery of Hospital Municipal Dr. Mário Gatti, Campinas SP, Brasil; Resident of Neuropediatry of Hospital das Clínicas, Universidade de São Paulo, São Paulo SP, Brazil; Neurosurgeon of Instituto de Ciencias Neurologicas (ICNE), Hospital Beneficência Portuguesa, São Paulo SP, Brazi...

A 55-year-old man was admitted with Wernicke ́s aphasia and history of progressive headache in the past three weeks. Computed tomography showed a temporal lobar hemorrhage, transverse sinus thrombosis and suggested a dural arteriovenous fistula (DAF) (Figure 1). Digital subtraction angiography confirmed the DAF, which was successfully treated with embolization (Figure 2). DAF is a rare abnormal ...

Spinal Dural Arteriovenous fistulas (sDAVFs) represent the most common vascular malformation of the spinal cord accounting for 70% of all cases and are very rare in the general population. Usually, sDAVFs present with symptoms and signs of myelopathy and if left untreated can lead to permanent disability. The diagnosis and characterization of sDAVFs requires high index of suspicion and knowledg...

Seven dural arteriovenous fistulas were successfully embolized with mechanical detachable coils. Two lesions were located in the transverse-sigmoid sinus, four in the cavernous sinus, and one in the marginal sinus. All lesions were completely occluded on postembolization angiography. No recurrent symptoms appeared during a mean follow-up period of 11 months. Owing to the length and retrievabili...