Impact of Drug Therapy and Co-Morbidities on the Development of Renal Impairment in HIV-Infected...
Human Immunodeficiency VirusesKidney Failure1 moreTenofovir (TDF)-containing regimens may be associated with decreasing renal function in HIV-infected patients concurrently treated with boosted PI's and/or have co-morbid conditions including diabetes mellitus, hypertension, anemia, hepatitis B, and hepatitis C.
Cystatin C as a Marker for Detecting Early Renal Dysfunction in a Pediatric Emergency Department...
Acute Renal FailureGastroenteritis1 moreAcute renal failure (ARF) is a rare but serious complication of gastroenteritis and dehydration, the most common reason for pediatric emergency visits. Renal function is determined by the glomerular filtration rate (GFR). Serum creatinine, the current marker of GFR, is insensitive and a late marker of ARF. Unfortunately, "gold standard" methods for measurement of GFR are impractical in the emergency setting. Recently, cystatin C (CysC) was introduced as superior marker for the measurement of GFR, particularly in children. A single random blood sample allows for accurate determination of GFR in the so-called "creatinine-blind" range and independent of the body composition. There is growing evidence that the determination of serum CysC concentration can detect ARF in adults earlier than serum creatinine or urinary fractional sodium excretion. No studies have examined this marker for the early detection of ARF in children at risk. We therefore propose a prospective study that compares CysC with other biomarkers of renal dysfunction for the early detection of ARF in children with dehydration due to gastroenteritis. Patients with minor trauma and a minimal likelihood of ARF will serve as a control. This study may establish CysC as an accurate and cost-effective marker for identifying patients at risk.
Pure Red Cell Aplasia in Patients With Chronic Kidney Disease and in Use of Epoetin Alfa
Red-Cell AplasiaPure2 moreThe purpose of this study is to determine occurrence of pure red cell aplasia in a group of participants with chronic renal insufficiency and with resistance criteria to epoetin alfa treatment.The investigational product is producted by Bio-Manguinhos / Fiocruz (BIO-EPO) and it is provided by the Unified Health System.
Advance Care Planning With Older Patients Who Have End-stage Kidney Disease
Kidney FailureChronicThis study will test the feasibility of carrying out a randomised controlled trial, incorporating a mixed methods process evaluation, to evaluate advance care planning with older patients who have end-stage kidney disease.
Study on Colonic Fermentation in Chronic Kidney Disease Patients
Renal InsufficiencyChronicChronic kidney disease is associated with the accumulation of various metabolites, i.e., uremic retention solutes. Evidence is mounting that the colonic microbiome contributes substantially to these uremic retention solutes. Indoxyl sulfate and p-cresyl sulfate are among the most extensively studied gut microbial metabolites, and are associated with cardiovascular disease, chronic kidney disease progression and overall mortality. Indirect findings suggest that chronic kidney disease influences the colonic microbial metabolism with higher p-cresyl sulfate urinary excretion rates at more advanced renal disease. Therefore, this study aims to elucidate the influence of renal dysfunction on microbial metabolism and to test the hypothesis that chronic kidney disease patients carry a different fecal metabolite profile.
Carnitine, Aclycarnitine, Myocardial Function, and CRRT
Acute Renal FailureCarnitine is essential for the transport of fatty acids into the mitochondria and energy production in different muscles, including the myocardium. It is also needed to protect myocyte cell membranes from oxidative damage by removing excess acyl carnitine groups. Patients receiving chronic intermittent hemodialysis (HD) are known to be at increased risk for carnitine deficiency as a result of its removal during the dialysis procedure, lack of endogenous synthesis by the kidney, and inadequate dietary intake. The carnitine status of children undergoing continuous renal replacement therapy (CRRT) has not been studied. Children undergoing CRRT in the intensive care unit (ICU) setting may be at increased risk for carnitine deficiency due to its continuous removal, lack of carnitine production by the kidney, and absence of carnitine intake (as majority of these children can not eat and there is no carnitine added to total parenteral nutrition (TPN). Carnitine deficiency may increase the risk of cardiac dysfunction in critically ill children. This is the first study to examine carnitine status in children undergoing CRRT. Standard echo as well as more sensitive speckle tracking echo will be used to evaluate the effect of carnitine deficiency on myocardial function.
Dexmedetomidine and Renal Transplants
Renal FailureInvestigators aim to retrospectively research patients undergoing renal transplants that received dexmedetomidine perioperatively to see if dexmedetomidine use protects renal function. Investigators hope to elucidate any association between renal transplant patients and perioperative dexmedetomidine administration, these include (but are not limited to) UOP, Cr/GFR, morbidity, mortality, in hospital complications and failure rate. Investigators will research both living and cadaveric renal transplants.
The Effects of Anti-microbial Spray Dressing in Preventing Tenckhoff Catheter Exit Site Infection...
Signs and Symptoms of Exit Site InfectionPhysical Damage of the Tenckhoff Catheter1 moreThe present study aims to compare the differences in exit site infection between patients receiving spray dressing and conventional care. The outcome measures including catheter exit site infection rate, skin allergy, catheter damage and patient satisfaction
Effect of Hemodialysis on Upper Airways Collapsibility in Patients With Chronic Kidney Disease
Renal InsufficiencyChronicIntroduction: Currently, chronic kidney disease (CKD) is one of the most serious public health problems, becoming a global epidemic. It is also known that the amount of displacement of overnight rostral fluid, from the lower limbs, is related to increased neck circumference and severity of obstructive sleep apnea (OSA) in patients with end-stage renal disease. Method / Design: A clinical trial study aiming to assess the degree of collapsibility of the upper airway in patients with CKD undergoing hemodialysis has been proposed. The test of the negative expiratory pressure and nocturnal polysomnography will be performed before and after the hemodialysis session. Discussion: The incidence of CKD has increased, due to the increased number of cases of diabetes mellitus and hypertension. Our hypothesis is that the weight gain due to volume overload, observed in the interdialytic period, will exert a negative influence on the degree of collapsibility of the upper airways predispose to OSA in CKD patients.
Pharmacokinetic Comparison Of All FK-506 Formulations
Renal FailureThe purpose of the study is to compare the pharmacokinetic parameters of three different formulations of tacrolimus. Eligible patients will be treated with all three formulations in a pre-defined sequence.