View clinical trials related to Arteriovenous Fistula.
Filter by:The purpose of the study is to investigate the efficacy of the ROX coupler in treating patients with tilt test proven Neurally mediated syncope.
The goal of this study is to find the best techniques to take non-invasive images of the arteriovenous fistula (AVF) in hemodialysis patients.
A prospective single-arm well-controlled study to evaluate the safety and effectiveness of a less invasive means of establishing vascular access to facilitate dialysis in patients with end stage renal disease.
This study is a randomized, placebo-controlled, single blind clinical trial. Seventy patients with ESRD on chronic HD and a functioning AVF will be recruited. The following data will be documented on each patient: 1-Age/gender/race/body weight/cause of ESRD 2-Vintage of HD 3-Time since access was placed 4-Type and place of access and blood flow rate of access 5-History of prior access problems 6-Comorbid conditions (Hypertension, coronary artery disease, Diabetes Mellitus, Bleeding problems, peripheral vascular disease). 7-Current medications (Coumadin, Erythropoiesis stimulating agents, heparin, other antiplatelets, digoxin, statins). Patients will be randomized into two groups to receive: Group 1: Ticagrelor 90 mg PO BID Group 2: Placebo drug PO BID.
This study evaluates the addition of Pecs II block to ultrasound-guided supraclavicular brachial plexus block in patients undergoing arteriovenous graft creation surgery. Participants will be randomised into two equal groups, one receiving supraclavicular and pecs II blocks, the other receiving supraclavicular block and sham block (Grade 1).
Once kidney function goes below 10 to 15 percent of normal, dialysis treatments or a kidney transplant are necessary to sustain life. One type of dialysis is hemodialysis which cleans blood by removing it from the body and passing it through a dialyzer, or artificial kidney. To maximize the amount of blood cleansed during hemodialysis treatments, there should be continuous high volumes of blood flow. A fistula used for hemodialysis is a direct connection of an artery to a vein. Once an arteriovenous fistula (AVF) is created it is a natural part of the body. This is the preferred type of access because once the fistula properly matures and gets bigger and stronger; it provides an access with good blood flow that can last for decades. After the fistula is surgically created, it can take weeks to months before the fistula matures and is ready to be used for hemodialysis. There have been surgical factors identified; one of them being the anesthetic used which may cause a fistula not to survive. This study will look at comparing 3 anesthetic techniques: axillary block (AB) versus stellate ganglion (SGB) block+local anesthetic versus local anesthetic (LA).
Background: Arteriovenous fistula (AVF) is a form of vascular access for haemodialysis. An AVF is normally created at the level of the wrist, but occasionally it is created in the elbow when there is no suitable vessel in the forearm. The most common type of elbow (antecubital) fistula (AFF) is a brachiocephalic fistula, which carries significantly higher risk of steal syndrome (AVF-associated hand ischaemia) than wrist fistulas. More recently, AFF using proximal radial or ulnar artery as inflow has been described and shown to have a lower rate of Steal syndrome than brachiocephalic fistula. This study aims to investigate the incidence of steal syndrome between AFF using brachial artery and that using the proximal radial/ulnar artery as inflow.
The purpose of this study is to compare the effect of DSA guided percutaneous balloon dilatation, ultrasound guided percutaneous balloon dilatation and surgical repair in the treatment of Stenosis of Arteria-Venous Fistula in Maintenance Hemodialysis Patients.
The timing for arteriovenous fistula (AVF) creation and its effect on target organs in patients with chronic renal failure will be investigated by multicenter prospective cohort. Lower estimated glomerular filtration rate (eGFR) patients (eGFR<10ml/min 1.73m2 for patients without diabetic kidney disease, and eGFR<15ml/min 1.73m2 for diabetic kidney disease) and higher eGFR patients (eGFR 10-15ml/min 1.73m2 for patients without diabetic kidney disease, and eGFR 15-20ml/min 1.73m2 for diabetic kidney disease) will be proposed to undertake AVF creation. Maturation rate and time of AVF will be followed up in 3 months; primary and secondary patency rate of AVF, AVF construction on cardiac structure, function, encephalopathy, cerebral vascular lesions and cognitive function will be followed up in the next 2 years. This multicenter will provide evidence to develop guideline of timing for AVF creation
The purpose of this research study is to determine whether two different types of forearm exercise, performed before fistula creation surgery, can improve surgery success and fistula maturation.