background traditional digital subtraction angiography (dsa) is currently the gold standard diagnostic method for the diagnosis and evaluation of cerebral arteriovenous malformation (avm) and dural arteriovenous fistulas (davf). objectives the aim of this study was to analyze different less invasive magnetic resonance angiography (mra) images, time-resolved mra (tr-mra) and three-dimensional ti...

Whenever possible it is suggested that a native arteriovenous fistula is created and used for haemodialysis, as it is superior to an arteriovenous graft and to a central venous catheter. (Level III evidence) When a native arteriovenous fistula is not possible, an artificial arteriovenous graft should be used in preference to a central venous catheter. Arteriovenous grafts have similar patency t...

background and purpose: pain perception with arteriovenous fistula (avf) cannulation is a major concern among patients undergoing hemodialysis. this study aimed to compare the efficacy of cryotherapy and placebo in the reduction of avf puncture-related pain in hemodialysis patients. methods: this randomized clinical trial was conducted on 50 patients undergoing hemodialysis selected via random ...

central nervous system infection is a rare complication of endovascular procedures. we report a 21-year-old woman presented with headache, nausea, vomiting, and right-sided hemiparesis 4 months after endovascular embolization of cerebral arteriovenous malformation. investigations led to the diagnosis of multiple brain abscesses. this is the sixth case report of brain abscess following endovascu...

Dural arteriovenous shunts and pial arteriovenous fistulas are uncommonly associated. Their etiology, pathogenesis, and natural history are still unclear and are likely different. We present three cases of high-flow dural arteriovenous shunts associated with pial arteriovenous fistulas and discuss their pathogenesis, anatomic association, and angioarchitecture. We propose that venous steal effe...

BACKGROUND AND OBJECTIVES Arteriovenous fistulas often fail to mature, and nonmaturation has been attributed to postoperative stenosis caused by aggressive neointimal hyperplasia. Preexisting intimal hyperplasia in the native veins of uremic patients may predispose to postoperative arteriovenous fistula stenosis and arteriovenous fistula nonmaturation. DESIGN, SETTING, PARTICIPANTS, & MEASURE...

Time-resolved, contrast-enhanced 3D MR angiography combined with parallel imaging at 3T was applied to an intracranial arteriovenous malformation, a dural arteriovenous fistula, and an extracranial facial arteriovenous malformation. The temporal resolution was one image every 1.5 seconds. Arterial feeders were depicted in all three cases. Early venous drainage was observed in the intracerebral ...

BACKGROUND Hemangioma is the most common tumor of neonatal period and it is almost always appeared by the end of the first week of life and can be found mostly in head and neck area. This study evaluated the synergistic effect of bleomycin, triamcinolone and epinephrine in treatment of hemangioma and arte-riovenous malformations. METHODS In this multicenter study, a combination of bleomycin,...

background: uterine arteriovenous malformation is a rare but potential life-threatening source of bleeding. a high index of suspicion and accurate diagnosis of the condition in a timely manor are essential because instrumentation that is often used for other sources of uterine bleeding can be lead to massive hemorrhage. case: we describe here a case of uterine arteriovenous malformation. a 32-y...