Active clinical trials for "Kidney Failure, Chronic"

Inulin's usefulness as a diagnostic agent is based on the method of its elimination from the body. Inulin is biologically inert, unbound by plasma proteins, freely filtered at the glomerulus, and is neither reabsorbed, metabolized nor secreted by the kidneys. It is excreted almost entirely by glomerular filtration. Inulin clearance is considered to be identical to glomerular filtration rate (GFR).

Prospective, real-time observational study of hemodialysis patients treated with erythropoiesis-stimulating agents (ESA) to currently recommended Hgb targets. Subjects will be evaluated dynamically for their blood viscosity status at the beginning and end of the dialysis treatment, and followed prospectively to assess outcomes. Blood specimens will be collected via the subject's hemodialysis port pre- and post-hemodialysis per study assessment visit. Blood will be analyzed at a designated laboratory facility for viscosity over a comprehensive range of shear rates and tested for intradialytic surges in blood viscosity. Subjects will be followed for 48 weeks.

Hearing impairment either clinical or subclinical is a characteristic of some renal disease patients. The hearing impairment could be result from specific etiologies or chronic renal failure itself. The causes of hearing impairment in renal disease patients ranged from drugs intoxication in both auditory and renal function, like gentamycin or isoniazid, congenital disease like Alport syndrome or other collagen-defective renal disease, or just aging related. End-stage renal disease (ESRD) patients are special in many parts to general population who have hearing impairment. First, inflammation in ESRD patients is well-documented, second, they suffered from various underlying diseases which auditory function was potentially impaired, third, they need to undergo renal replacement therapy either hemodialysis (HD) or peritoneal dialysis (PD) to maintain their life. Dialysis itself was found to be a cause of hearing impairment, too. The biochemical change and constitutive inflammation status are thought to be implicated in the pathogenesis of hearing impairment in ESRD patients. Aluminum (Al) is a well-documented heavy metal, which predisposes to Alzheimer's disease, dementia or some neurologic diseases. Al intoxication is very rare in general health population but elevated serum Al level is easily found in ESRD patients since they can not excrete Al by damaged kidneys and dialyzers. Inner ear per se is a neurologic tissue, so if serum Al level in ESRD patients has any association in their haring function needs to be studied.

Renal transplantation is the optimal method of treatment for end stage kidney disease however median lifespan of a kidney transplant is around 15 years. Existing methods of measuring transplant function and structure from blood and urine markers are imperfect; renal biopsy is often performed but is invasive. Novel methods of investigating transplant function are therefore required and emerging renal MRI sequences including ASL and diffusion weighted imaging may yield helpful biomarkers. Investigators will recruit 20 patients in the first year after transplant and measure MRI biomarkers at three time points, with correlation to existing methods of measuring transplant function.

identification of the factors that affect the outcome of arteriovenous fistula in chronic renal failure patients that newly established regular dialysis in Assiut Governorate To study the factors that influence the outcome of AVF To evaluate the vascular complications of AVF as occlusion, rupture, aneurysmal dilation and hand ischemia

The rein registry collects case record data from patients with end stage renal disease followed in French Guiana. This allows to generate incidence and rates for terminal renal disease, mortality rates for each territory. The regional data are pooled in order to get national statistics for end stage renal disease and transplantation activity in order to adapt prevention to the main causes of renal failure and treatment and care infrastructure.

The purpose of this observational study is to better understand the natural history/natural course of uremic pruritus (UP) - itching associated with chronic kidney disease(CKD). During the lifetime of a CKD dialysis patient, UP tends to be a prolonged, frequent, and an intense itch that is known to impair the patient's quality of life (QoL), including sleep and mood. The study will follow hemodialysis (HD) patients longitudinally to characterize their pruritus over time. The study will quantify and characterize UP and assess change over time; collect data on conditions that may be affected by UP such as sleep, mood, socialization and overall quality of life; collect data on use of medications, particularly anti-pruritic treatments, sleep aids, and medications for depression and anxiety; and collect data on medical resource use, particularly hospitalizations for treatment of skin and other infections over the duration of the study.

The present study plans to delineate the clinical, biochemical, sociological and psychological factors. involved in dialysis preparation, and their impact on dialysis initiation (DI), modality choice and prognosis. In particular the following questions are to be answered. What factors influence unplanned DI? What factors influence choice of dialysis modality? What factors influence choice of dialysis access? Why do physicians start dialysis? What factors in the predialytic period and its immediate aftermath (the "peridialytic" period) influence prognosis?

Ability and sensitivity of metabolomics analysis to highlight biomarkers or a score of biomarkers that will be able to identify those pediatric patients on peritoneal dialysis at high risk for possible peritoneal dialysis complications and mainly encapsulating peritoneal sclerosis

This study is designed to identify novel predictors of vascular access success or failure in chronic kidney disease patients. Despite efforts to improve placement of arteriovenous fistula (AVF) the primary failure rates are reported as high as 20-50%, but standard tools like ultrasound cannot inform the clinician sufficiently to accurately predict success or failure. The aim of this study is to perform enhanced assessments of arterial health preoperatively and correlate these measurements with vascular lesions (microscopic tissue changes and monocyte infiltration) and early AVF outcome. Activation of monocytes in uremia condition is responsible for endothelium dysfunction, intimal hyperplasia and atherosclerosis. The investigators expect that stiff arteries caused by monocyte dysfunction refer to the poor distensability and probably longer maturation time.