pulmonary arteriovenous malformations are rare clinical entities thai are associated with right to left shunts, and are often clinically presented by the triad of dyspnea, cyanosis, and digital clubbing. currently, transcatheter embolization of fistula is gaining increasing popularity as the superior therapeutic option. in certain situations, however, surgery is preferred. two cases of direct p...

patients with end stage renal disease need a good vascular access for hemodialysis. arteriovenous fistula is the method of choice for vascular access in these patients. however, failure of arteriovenous fistula due to thrombosis is a major problem. the aim of this study was to evaluate the effect of the heparin on the patency of the arteriovenous fistula. this prospective interventional case co...

background: spinal dural avf is the most common type of spinal vascular malformation. however, presenting symptoms differ according to site of spinal involvement. this study described a case of arteriovenous malformation with paraparesis and incontinence. case presentation: diagnosis of patient was confirmed by clinical and imaging examination using magnetic resonance image and ruling out other...

Background: The ineffectiveness of hemodialysis fistulas causes high costs and increases mortality and morbidity rates. The efficacy of drug-coated balloon and nondrug-coated balloon in dysfunctional arteriovenous Fistula was evaluated over six month period. Methods: In this randomized clinical trial, a total of a total of 50 hemodialysis patients who referred to Imam Reza Hospital in Kermansh...

Background: Spinal dural AVF is the most common type of spinal vascular malformation. However, presenting symptoms differ according to site of spinal involvement. This study described a case of arteriovenous malformation with paraparesis and incontinence. Case Presentation: Diagnosis of patient was confirmed by clinical and imaging examination using magnetic resonance image and ruling out ot...

we report a case of a 40 year old man with portal hypertension caused by a splenic arteriovenous fistula that was diagnosed at laparotomy. he presented with bleeding esophageal varices and was initially treated by sclerotherapy. at laparotomy, portal pressure was 40 cmh20 but fell to 20 cm h20 after the fistula was treated with splenectomy. all symptoms disappeared shortly after operation and t...

the klippel-trenaunay syndrome, first reported in 1910, is a triad of cutaneous hemangioma, varicose veins, and soft tissue or bony hypertrophy. the varicosities are extensive involving the tributaries of the greater or lesser saphenous systems. arteriogram are normal with no evidence of arteriovenous fistulas. multiple ligation and stripping may worsen the condition, and treatment consists of ...

Vascular anomalies are categorized into vascular tumours or vascular malformations on the basis of clinical features and histopathology. The literature regarding high flow arteriovenous malformations of the auricle is rare. A case of a patient clinically diagnosed with an arteriovenous malformation of the external ear and was managed with preoperative embolization, surgical excision and reconst...