Warfarin Versus Aspirin in Patients With Atrial Fibrillation and Chronic Kidney Disease
Atrial FibrillationChronic Kidney DiseaseIn this study, the investigators examine whether aspirin or warfarin is useful for atrial fibrillation patients with chronic kidney disease.
Comparison of Body Hydration State in Hemodialysis Patients
HemodialysisChronic Kidney DiseaseEstimation of hydration state in dialysis patients is a major challenge in clinical practice. Although many methods have been studied, none have been established yet for clinical routine practice. The investigators have developed a method, using segmental and calf bioimpedance spectroscopy (cBIS) techniques to measure body hydration. The device we used based on the FDA-approved Hydra 4200 (Xitron Technologies, San Diego, CA). The Hydra 4200 was initially developed to measure whole body and segmental body fluid volumes but Hydra is approved only for measuring healthy subjects. The cBIS monitors hydration state by continuously measuring change in resistance and resistivity in the calf during hemodialysis (HD) or it can be used for simple measurement before, during and after dialysis. Preliminary results in clinical studies have shown that optimal hydration state of HD patients may be determined by the calf method. This study aims to compare the Hydra 4200 to two other devices: the FDA approved ZOE (100 kHz) Fluid Status Monitor (Noninvasive Medical Technologies, Inc, Las Vegas) and a modified version ZOE 5 kHz. The modified ZOE monitor (ZOE (5 kHz)) delivers frequency of 5 kHz and 0.8 mA current instead of 100 kHz and 2 mA. The subjects of this study include a group of hemodialysis patients and a group of healthy controls. The healthy controls are used to identify a normal range within the healthy population for each method. Each hemodialysis patient will be studied twice in different hydration state. The study will not change the procedure of the patient's dialysis treatment. Since all devices are based on noninvasive bioimpedance technique, this study has minimal risk.
Oral Versus Intravenous Hydration to Prevent Contrast Induced Nephropathy
Contrast Induced NephropathyThe increased risk for contrast-induced nephropathy (CIN) in patients with chronic kidney disease (CKD) undergoing coronary angiography (CAG) has been established. Current and historical data on CIN prevention strategies have shown wide variation with respect to the optimal type, route and timing of these therapies. We investigate the role for oral hydration and/or oral sodium bicarbonate administration compared to intravenous hydration and/or sodium bicarbonate in patients with CKD undergoing CAG.
Pathology and Imaging in Kidney Allografts
Renal Transplant RejectionChronic Kidney Diseases1 moreThis study will perform multi-parametric renal MRI in 70 patients with a renal transplant who are undergoing a clinically indicated biopsy of their transplant. The aim of this study is to compare findings on renal MRI with those seen on histology.
Molecular MRI of the Fibrotic Heart
HealthyMyocardial Fibrosis1 moreThis study is a feasibility study to validate magnetizatin transfer (MT)-weighted balanced steady state free precession (bSSFP) cine cardiac magnetic resonance (CMR) against current clinical gold standard diagnostics, and to determine the applicability of MT-weighted bSSFP cine CMR for diagnosis of fibrotic remodeling in chronic kidney disease (CKD5) patients. Participants will not receive a study drug or placebo and will not be randomized. A total of 250 participants will be enrolled into this study.
Cardiomyopathy in Steroid-resistant Nephrotic Syndrome: Impact of Focal Segmental Glomerulosclerosis...
Focal Segmental GlomerulosclerosisNephrotic Syndrome2 moreThe objective of this study is as follows: Perform genetic analysis to define the prevalence of each of the known gene mutations in an unselected cohort of patients with focal segmental glomerulosclerosis (FSGS) Perform a comprehensive assessment of cardiovascular status to determine the incidence of any cardiac abnormalities in patients with FSGS Determine if patients with mutations in specific proteins are more likely to have cardiovascular abnormalities Initiate long-term follow up in all patients to determine whether cardiac prognosis is related to any specific genetic abnormality
Effect of Sodium Rinsing Fluid on Blood Pressure and Interdialytic Weight Change in Hemodialysis...
End-Stage Kidney DiseaseHemodialysisThis is a prospective, randomized, double-blind, parallel group trial to assess the efficacy and safety of intravenous dextrose 5% solution compare with normal saline (standard care) in wash back procedure during haemodialysis in patients with end stage renal failure (ESRF) with respect to systolic blood pressure control over 3 months period. The primary objective is to establish efficacy of 5% dextrose solution compared with normal saline (0.9% sodium chloride solution) with respect to systolic blood pressure control in subjects with end stage renal failure (ESRF) on regular hemodialysis. Secondary objectives include monitoring the change in body weight, thirst level and body fluid volume.
Gut Microbiome and p-Inulin in CKD - TarGut CKD Study
Chronic Kidney DiseasesThe purpose of this Phase 1, 3-period crossover with repeated measures feasibility study is to characterize the gut microbiome of individuals with chronic kidney disease, and to explore effects of p-inulin on the gut microbiome. The nature of the study will provide information about the feasibility of stool sample collection for future multicenter studies of the gut microbiome.
Medico-economic Impacts of NeLLY Service for Not on Dialysis Severe Chronic Kidney Disease
Chronic Kidney Disease stage4Kidney DiseasesThis medico-economic research project (PRME) aim to analyse NeLLY service efficiency for not on dialysis severe chronic kidney disease (DFG < 30ml/mn) patients care. NeLLY is a service that includes telemonitoring, educational therapy and support for patients with severe chronic kidney disease.
Utility of Telemedicine in the Follow-Up of Patients in Peritoneal Dialysis
Chronic Kidney Disease Stage 5Peritoneal Dialysis ComplicationPeritoneal dialysis (PD) technology is available but has not been tested in the real world. Therefore, the aim of this study is to test the utility of telemedicine in reducing mortality, hospitalizations, unscheduled visits, and cost derived from preventable complications. Incident patients to PD treatment will be followed from various hospitals in Mexico City and Guadalajara. Direct medical costs will be evaluated, along with unplanned hospital visits and complications over 2 years using the Claria telemedicine apparatus from Baxter Laboratories.