Venous injury and attendant venous stenosis are major contributors to the failure of hemodialysis vascular accesses. This report describes the presence of neoangiogenesis in the intima and adventitia of the venous limb of an arteriovenous (AV) fistula in the rat, the latter induced by creating an aortocaval fistula. Immunohistochemistry of the venous limb demonstrated the presence of c-Kit-posi...

During the years 1 9 9 2 1 9 9 6 11 cases of arteriovenous fistula or aneurysm were reported in the Department of Surgery at Tikur Anbessa Hospital (TAH). Ten of these cases will be presented. Eight of the cases were operated upon in 1996. The mean age of the patients was 32 years (range 17-49). Nine were men. The aneurysms were located in the lower extremities in eight patients, and in the upp...

BACKGROUND AND PURPOSE DAVFs (dural arteriovenous fistulas) represent one of the most dangerous types of intracranial AV shunts. Most of them are cured by arterial or venous embolization, but surgery/radiosurgery can be required in case of failure. Our goal was to reconsider the endovascular treatment strategy according to the new possibilities of arterial embolization using non polymerizing li...

INTRODUCTION Acute injury to the large vessels is the most feared of diagnoses for a spinal surgeon, but far more common is the delayed presentation of arteriovenous fistula (AVF) formation. The mean time to diagnosis of an AV fistula in this scenario is just over 1 month. Treatment can include both open and endovascular repair. REPORT This study presents a case of an otherwise healthy 39-yea...

The association between hemodialysis vascular access type, costs, and outcome of Staphylococcus aureus bacteremia (SAB) among patients with ESRD remains incompletely characterized. This study was undertaken to compare resource utilization, costs, and clinical outcomes among SAB-infected patients with ESRD by hemodialysis access type. Adjusted comparisons of costs and outcomes were based on mult...

Pre-existing forearm grafts lead to dilatation of upper arm veins of the ipsilateral arm that greatly facilitates the creation of secondary arteriovenous fistulas (AVF). In this retrospective review of 18 patients, the routine and periodical revision of failed grafts were discontinued. Vein mapping by physical examination or Duplex studies was performed prior to graft failure and a secondary AV...

Obtaining and maintaining vascular access is of pivotal importance in the care of chronic haemodialysis patients. According to the Dialysis Outcomes Quality Initiative (DOQI) guidelines, peripheral arteriovenous (AV) fistulas or grafts are the preferred type of access [1]. The use of central venous catheters for chronic haemodialysis is discouraged [1]. Compared with AV fistulas, central cathet...

conclusion the dwmri is a useful technique for evaluating activity of fistulas with abscess. perianal fistula visibility is greater with combined t2wi and dwmri than t2wi alone. patients and methods fifty-three patients with 56 perianal fistulas were included in the current retrospective study. the t2-weighted imaging (t2wi) and dwmri were performed and apparent diffusion coefficient (adc) valu...