View clinical trials related to Hemodialysis Access Failure.
Filter by:Chronic Kidney disease (CKD) is a worldwide public health problem that classified into five stages (1). End stage renal disease (CDK stage 5) patients require a well-functioning vascular access (VA) for successful hemodialysis treatment (2). Types of VA include arteriovenous fistulae (AVFs) and arteriovenous grafts (AVGs). A vascular access is liable to early or late complications, and ultimately access failure. A meta-analysis showed that a 17% mean early access failure However recent studies have shown higher failure rates of up to 46%, with one year patencies between 52% to 83% (3). Low VA flow, thrombosis and loss of patency may result in under-dialysis that leads to increased morbidity, mortality and healthcare expenditure (4). In the majority of VAs, stenoses develop over variable intervals causing VA thrombosis and failure (5). If early detected and corrected, VA function and patency can be preserved and under-dialysis can be minimized or avoided. The aim of this study is to find out the role of periodic surveillance of VA in the detection of VA dysfunction and correctable lesions that may necessitate pre-emptive interventions to maintain VA patency and prevent VA loss
Prospective clinical trial to evaluate the efficacy of catheter lock with bicarbonate vs heparin in chronic hemodialysis patients. Two groups will be created, sodium bicarbonate lock group (experimental group) and heparin lock group (control group). Catheter pressures, flow, patency and infection outcomes will be compare between groups at different time points (30, 60 and 90 days).
For chronic hemodialysis patients, the creation of a well-functioning arteriovenous (AV) fistula is critical for ensuring that patient receive adequate hemodialysis. Unfortunately, the primary failure rate for AV fistulas after surgery is about 40%, and this percentage has not changed despite a number of trials of pharmaceutical agents and biologic agents. A key to success in the development of a useable AV fistula is an adequate arterial and venous diameter in the access forearm. Although exercise is commonly used to increase vessel diameter after AV fistula placement, Investigators are unaware of published studies that report on the effect of exercise prior to AV fistula placement to assist with the maturation of a newly created AV fistula. In this pilot trial, the Principal Investigator will evaluate the feasibility and possible benefits of pre-surgical exercise on forearm AV fistulas.
Background: Parathyroid hormone (PTH) and 1,25-dihydroxy vitamin D (1,25-OHD) as well as mineral bone metabolism modulators like sclerostin are thought to play an important role in in diabetic patients with chronic renal failure. The present study aimed to analyse the levels of serum sclerostin before and after hemodialysis which is a primary element of treatment in such combined disease states. Methods: Serum sclerostin concentrations were measured using a commercially available enzyme-linked immunosorbent assay kit with 56 individuals who 14 chronic hemodialysis patients with diabetes, 14 chronic hemodialysis patients with non-diabetes and 28 healthy volunteers as a control group.
The purpose of this study is to evaluate the safety and performance of the SurVeil DCB in subjects with obstructive lesions of arteriovenous fistulae for hemodialysis.
Prospective, randomized, comparative clinical and open-label trial comparing sodium bicarbonate catheter lock solution (SBCLS) to normal saline catheter lock solution (NSCLS) use in HD patients with central venous catheters (CVC).
To investigate the effect of ascorbic acid on angiographic restenosis after percutaneous transluminal angioplasty (PTA) for dysfunctional dialysis vascular access.
Arteriovenous fistulas (AVFs) for hemodialysis often fail to become usable due to failure to mature (FTM). The most common cause is narrowing of the artery or vein (stenosis). Another potential cause is the presence of collateral or side branch veins that steal blood flow from the main fistula channel. Some believe that occluding these veins might help maturation of those failing AVFs. To evaluate if this actually works, patients with FTM will be randomly assigned to side branch vein ligation (or not), and rates of AVF maturation of the two groups will be compared.
The aim of this two-year study is to explore the relationship among function of HVA, nail-fold capillaries and TCM constitutions based on hybridizing data mining techniques. This study will not only improve our understanding on the expressions of function of HVA, nailfold capillaries and tendency of TCM patterns, but also demonstrate the fundamental knowledge of a novel healthcare model on hemodialysis vascular access.