To determine the efficacy of using stents and stent grafts for treatment of hemodialysis graft-related stenoses which have failed angioplasty. This retrospective study was composed of 51 patients with polytetrafluoroethylene hemodialysis grafts who underwent angioplasty of a graft-related stenosis but subsequently required insertion of a stent or stent graft. The study group included 40 patient...

BACKGROUND : In November 2005, a new automated distal anastomotic device (C-Port) for coronary artery bypass grafting (CABG) was cleared by the FDA for use in the United States. This study represents a prospective evaluation of our early experience using the device with graft patency assessment determined by 64 slice multidetector row computed tomography angiography (64CT). MATERIALS AND METH...

Abtract: Recently, a new proximal anastomosis device of a saphenous vein graft (SVG) to the aorta, the PAS-Port device (Cardica, Redwood City, Calif) has been introduced and yielded encouraging results in terms of neurologic complications and early patency.1,2 However, there is a concern about the midterm (at least 1 year after surgical intervention) patency rate. The aim of this study was to e...

PURPOSE To study the arteriovenous fistula patency, duration of its maintenance, and its relative complications. MATERIALS AND METHODS One hundred and thirty patients who had undergone hemodialysis during five years (1996 to 2001) were included in this study. The patency rate and complications, including paresthesia, pain induced by ischemia, venous hypertension, infection, erythema, and edem...

BACKGROUND AND OBJECTIVES The role of thrombophilia in failing arteriovenous fistula (AVF) among patients with ESRD undergoing hemodialysis is not established. This study aimed to assess whether AVF primary patency is associated with thrombophilia and coagulation abnormalities. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS This observational study screened 219 patients between 2002 and 2004 f...

INTRODUCTION A well-functioning arteriovenous fistula (AVF) is the best modality for vascular access in patients with end-stage renal disease (ESRD) requiring haemodialysis (HD). However, AVFs' main disadvantage is the high rate of maturation failure, with approximately one third (20%-50%) not maturing into useful access. This review examine the use of Far-Infra Red therapy in an attempt to enh...

BACKGROUND Dialysis vascular access complications are considered as significant causes of morbidity in chronic hemodialysis patients. OBJECTIVES The aim of the present study was a comparison of axillary loop and straight grafts patency and its complications in hemodialysis access. PATIENTS AND METHODS In this cohort study conducted at Shahid Beheshti Medical University, 77 patients who unde...

OBJECTIVES The long-term patency rates for individual and sequential saphenous vein grafts (SVG) as coronary bypass conduits are angiographically compared; the impact of native coronary vessel characteristics is investigated. METHODS A total of 875 distal coronary anastomoses on 500 SVGs were assessed in 430 patients at an average of 5.8+/-3 years after a coronary revascularization procedure....

AIM Micro-vascular anastomosis is a difficult art. It can be learnt and perfected only by practice using vessels of small animals in the laboratory. The purpose of the study was to practice various anastomotic techniques using rat femoral vessels and study the patency rates. MATERIAL AND METHODS Sixty-four Sprague-Dawley rats were used in the study. The following procedures were conducted on ...