Patients with end stage renal disease require some form of vascular access for treatment, Arterio-Venous Fistulas (avf) being the preferred available due to better patency rates. However, they continue present complications after creation, leading early or late failure. While many studies are examining flow in patient-specific fistulas, often neglect influence vessel compliance on its hemodynam...

A 27-year-old female patient was referred due to an edematous left lower extremity. Both saphenous veins had been ablated with an endovenous laser procedure used to treat varicose veins. Venography revealed that the left common femoral vein had been divided and that thrombosis was present at the site of division. No veins were available around the thighs. The patient was treated using a staged ...

Demographic data and underlying diseases had been recorded (Table 1). All patients were being treated with 5 mg folic acid while no patient received ASA or warfarin [1]. A fasting pre hemodialytic blood sample was obtained from all patients and plasma total homocysteine (tHcy) level was determined by means of Immunoturbidimetry Based on conversion NADH+ to NAD. According to the history of venou...

Cutaneous squamous cell carcinoma (CSCC) overlying an arteriovenous fistula (AVF) is rare and presents unique challenges. This case report describes a method of preservation after CSCC excision using flow-through venous free flap. The saphenous vein the flap was used as segment for AVF preservation. inserted along dorsal aspect forearm wound microvascular anastomosis arterial inflow completed j...

A 74-year-old man with hypertension and peripheral vasculopathy historywas admitted to our hospital to start renal substitutive treatment with haemodialysis through a functioning right humeral-cephalic arteriovenous fistula. In the first week after starting haemodialysis, the patient presented signs of distal ischaemia in the second and third fingers. A fistulography confirmed distal steal by a...

BACKGROUND The depth of veins can discourage surgeons from creating radial-cephalic arteriovenous accesses for hemodialysis in obese patients. Elevation and tunneled transposition are the two techniques that have been described to superficialize these veins and make them accessible for cannulation. Unfortunately, such manipulation of veins has potential drawbacks. We report lipectomy, a new tec...

Introduction. Dialysis associated steal syndrome (DASS) constitutes a serious risk for patients undergoing vascular access operations. We aim to assess the measured volume flow using ultrasound in patients with clinically suspected steal syndrome and determine differences in flow among types of arteriovenous (AV) access. Methods. Patients with permanent hemodialysis access with and without isch...

BACKGROUND The surgically created arteriovenous fistula has recently been recommended as the best available angioaccess for hemodialysis. Therefore, in this study, we carried out a clinical analysis on surgical procedures in the ligation and division of a distal vein to achieve similar effects as those of vein end-to-arterial side after side-to-side anastomosis. METHODS We retrospectively rev...

PURPOSE The aim of this study was to investigate the blood flow in the end-to-side arteriovenous (a-v) fistula, taking into account its pulsating nature and the patient-specific geometry of blood vessels. Computational Fluid Dynamics (CFD) methods were used for this analysis. METHODS DICOM images of the fistula, obtained from the angio-computed tomography, were a source of the data applied to...