Active clinical trials for "Renal Insufficiency"

Post-operative acute renal failure is a severe post-operative complication and is associated with high mortality. The enhanced prediction score, including pre-as well as intra-operative predictors accurately predicted ARF following hepatic surgery. This prediction score allows early identification of patients at high risk of ARF and may support decision-making for protective kidney treatment.

The objective of this study is to determine whether the finger tip images captured by the EPIC ClearView device, when analyzed via the ClearView software, produce a Response Scale that characterizes trends consistent with known diagnoses identified by medical doctors. Specifically, the investigators hypothesize that the organ system involving any of a series of known active diagnoses will be identified in the EPIC ClearView Response Scale report with the intention of providing potential triage capabilities.

The purpose of this study is to assess the incidence of pure red cell aplasia (PRCA [suppression of erythropoiesis with little or no abnormality of leukocyte or platelet production]) among participants with chronic renal failure (CRF), who were receiving treatment with epoetin alfa or other exogenous recombinant erythropoietin therapies.

Patients treated by chronic renal replacement therapy are exposed to cardiovascular problems and suffer from an accelerated and sever atherosclerosis. Classical risk factors for atherosclerosis and cardiovascular diseases (CVD) do not explain the full risk of CVD in the dialysis patients. Additional risk factors are therefore likely to exist. The uremic syndrome is attributed to the progressive retention of a large number of compounds, which under normal conditions are excreted by the healthy kidneys. Uremic toxins such are parathormone (PTH), vitamin D and phosphates, cause development of renal osteodystrophy (ROD), i.e. disordered calcium and phosphate metabolism. Both conditions of hyperparathyroid and adynamic bone disease (ABD) lead to an elevated calcium x phosphate product and increased vascular calcification, which might occur in intimal and medial layer of the vessel wall. It is important to consider these processes separately, as the vascular consequences (occlusion with atheromatosis and vascular stiffening through medial calcification) are different. Moreover, the difference between uremic and non-uremic intimal plaque is not the size but its composition, with markedly increased calcium content. Hence, these observations have an important socio-economic impact because of the increased cardiovascular morbidity and mortality. The investigators hypothesized that uremic toxins in dialysis patients influence directly and/or indirectly the development of atherosclerosis, vascular calcifications and CVD.

Cardiovascular risk is high in patients with renal failure. Cross-sectional studies have indicated a relationship between arterial stiffness and renal function. However, there are no prospective longitudinal studies in the literature. In dialysis patients, arterial stiffness as well as wave reflections, predict mortality. However, there are no data on patients with mild-to-moderate renal impairment available. Therefore, we designed a study to test the hypothesis that: a) measures of arterial stiffness and wave reflections predict the progression of renal impairment in patients with mild-to-moderate renal failure; and b) measures of arterial stiffness and wave reflections predict cardiovascular events in patients with mild-to-moderate renal failure

This study will examine communication and trust between patients in the kidney transplant process and their health care providers. It will assess patients' perception of trust in their physician and nurse coordinator; determine the patients' level of trust in the areas of competence, compassion, control, communication, and confidentiality; and determine how the trust level varies as patients progress in the transplant process. Patients 18 years of age and older who are in various stages of the kidney transplant process at Walter Reed Army Medical Center and the NIH Clinical Center may be eligible for this study. Candidates include individuals who: are on dialysis but not on a transplant waiting list are on the organ waiting list and are also on dialysis are on the organ waiting list but are not on dialysis have had a kidney transplant within the last year. Participants will be interviewed by someone who is not their direct health care provider about the doctor/patient, primary provider/patient, or nurse/patient relationship, their health history, medical condition, and ideas about their care. With the patient's permission, parts of the interview will be tape-recorded. The interview will take about 30 to 40 minutes.

Purpose: The aim of the study is to identify a precise learning curve for pure retroperitoneoscopic donor nephrectomy (RDN). Methods: Data from 172 consecutive kidney donors who underwent pure RDN between January 2010 and July 2019 were prospectively collected and evaluated. CUSUM (cumulative sum) analysis was used for testing the operation time. Changepoints were determined by using the R program and BinSeg method. The cohort was divided into three groups. Group 1 refers to competence including the first 10 cases, group 2: 11- 48 cases as proficiency, and group 3: the subsequent 124 cases as expert level. Continuous variables were evaluated using one-way ANOVA, and categorical data were evaluated using the Chi-square test

The investigators hypothesize that the Systolic Foot-to-Apex Time Interval (SFATI) method will be accurate for measurement of systolic blood pressure with marked arterial stiffness as seen in patients with severe renal impairment. Also that the presence of arterial calcifications only changes the agreement between the SFATI method and the reference method (auscultatory method) if the calcifications are very severe.

This study evaluates the role of advanced US technology in assessing renal transplants as screening tools such as 3D Ultrasound, Ultrasound SWE, and MFI besides current ultrasound conventional metheds.

Preeclampsia (Pre-E) is a hypertensive disease of pregnancy with multi-system involvement that usually occurs in the second half of pregnancy. Pre-E occurs in 5% to 7% of U.S. pregnancies, and is the third-leading cause of U.S. maternal death. Improvements to the current diagnostic paradigm have been evaluated. However, no stand-alone diagnostic method has emerged that more accurately identifies women at risk for preeclampsia, warranting improvements in diagnosing Pre-E. This sample collection study will obtain serum and urine samples from pregnant women who present with clinical signs, symptoms, or conditions contributing to the suspicion of Pre-E. Samples will be used to evaluate and validate the performance of an assay intended to aid in assessing the risk of Pre-E.