An Assessment on Current Outcomes of Peritoneal Dialysis in Korea
Kidney FailureChronicIn this study, the recent trends in outcomes according to the dialysis modality in Korea since 2009, the effect of the use of peritoneal dialysis solutions containing icodextrin or high-glucose on various outcomes, the usefulness of 'PD first strategy', and the economic burden according to the dialysis modality will be investigated retrospectively using the Korean Health Insurance Review and Assessment Service (HIRA) database.
Implementing "Explore Transplant"- A Pilot Study
Endstage Kidney DiseasePatients with End Stage Kidney Disease (ESKD) require Renal Replacement Therapy (RRT) in order to survive, be it dialysis or kidney transplantation (KT). Of the two modalities, KT has been associated with better quality of life (QOL) [1-3], reduced morbidity and mortality[4, 5], and reduced healthcare costs[6]. Studies in the US have shown that patients receiving tailored transplant education were more likely to complete the transplant evaluation [9, 14, 15]. For instance, patients receiving the Explore Transplant (ET) education program designed by Dr. Waterman, were more knowledgeable about KT and more likely to complete KT evaluation than control patients. Currently, there is a lack of standardized KT education in Ontario. Traditional approaches have been insufficient in providing the necessary education and information to enable patients to make an informed decision about their care. To address this issue, the study will assess the impact of kidney transplant related education using the Explore Transplant Ontario (ETO) education program on kidney transplant-related knowledge and on readiness to consider KT, readiness to consider living donor KT, and wait list/referral rates in patients undergoing maintenance hemodialysis. In order to comprehensively measure this impact, 5 variables will be explored. Readiness to consider DDKT Readiness to consider LDKT KT related knowledge in patients Proportion of patients waitlisted or undergoing KT workup at 6 and 12 months after administration of ETO Proportion of patients who have identified at least one potential living donor at 6 and 12 months after administration of ETO The hypotheses are as follows: Readiness to consider DDKT will be higher in the "intervention" group compared to the "control" group at follow up. Readiness to consider LDKT will be higher in the "intervention" group compared to the "control" group at follow up. The KT related knowledge of the patients will be higher in the "intervention" group compared to the "control" group at follow up. The proportion of patients waitlisted or undergoing KT workup at 6 and 12 month after the KT education will be higher in the "intervention" group compared to the "control" group. The proportion of patients who have at least one potential living donor at 6 and 12 month after the KT education will be higher in the "intervention" group compared to the "control" group.
Study of Subclinical Viral Infection
Kidney TransplantationKidney Failure1 moreChronic allograft injury is the leading cause of graft loss in renal transplantation. The shortage of available kidneys for transplantation has reached crisis levels with increasing numbers of waiting list mortalities. Strategies to prolong graft survival are urgently needed. The pediatric and young adult transplant population is one in which repeat transplantation is inevitable and therefore, this group is one who will especially benefit from intervention to prolong graft survival. The hypothesis of this proposal is that subclinical viral infection is a modifiable risk factor in the pathogenesis of chronic allograft injury. The young age of the proposed study population is an ideal one to evaluate this objective due to the high prevalence of seronegative recipients. The studies outlined will determine the temporal relationship betWeween subclinical viremia, renal allograft infection and allograft injury. This will be the first prospective study in renal transplant recipients to systematically monitor subclinical viral infection both in peripheral blood and in the renal allograft with concurrent quantitative measures of renal function, allograft fibrosis, and innate immune activation. The investigators have chosen these 3 outcomes because they evaluate a spectrum of renal allograft injury and represent different stages - from early to late - in the pathophysiology that leads to renal allograft dysfunction. In addition, the role of virus specific T cell immune responses in the control of subclinical viral infection and associated allograft injury will be determined. These data are critical as they will provide insights into the pathogenesis of injury and will guide development of interventions strategies. Importantly, the current treatment strategies for viral disease do not prevent subclinical viral infection. Thus, the results of this study may identify that prevention, prophylaxis and/or treatment of subclinical viral replication as a long term strategy to prevent chronic allograft injury and prolong graft survival.
Circulating lncRNA and CV Morbidities in CKD and ESRD
Chronic Kidney DiseaseEnd-stage Renal DiseaseCardiovascular disease is the major cause of morbidity and death in patients with chronic kidney disease (CKD) and end-stage renal disease (ESRD). The mechanisms linking impaired renal function and increased risk for cardiovascular diseases, however, remain elusive. Long non-coding RNAs (lncRNAs) is a heterogeneous group of non-coding transcripts longer than 200 nucleotides. While the roles of lncRNAs in human diseases including cancer and neurodegenerative disorders are beginning to emerge, it remains unclear how lncRNA regulation contributes to cardiovascular complications in patients with renal dysfunction. In this proposal, the investigators seek to apply next-generation sequencing technology to investigate circulating lncRNA expression in control subjects and in patients with CKD and ESRD. The investigators will test the hypothesis that circulating lncRNA expression signature can reflect the underlying kidney disease states in patients with CKD and ESRD. A gene co-expression network analysis will be conducted to identify lncRNAs that are functionally involved in the pathogenesis of CKD and ESRD. Next, the investigators will identify circulating lncRNAs that are indicative of cardiovascular dysfunction in ESRD patients. Finally, the investigators propose to test the hypothesis that circulating lncRNAs can be novel prognostic biomarkers to predict cardiovascular outcomes and renal function progression in CKD patients. The results from these experiments will lead to better understanding of how circulating lncRNAs contribute to uremic cardiovascular complications and renal function progression.
NGAL Predictive Value of Acute Kidney Failure After Cardiac Surgery in Patients With Preoperative...
Preoperative KIDNEY FAILURECHRONIC3 morePrimary endpoint: To evaluate predictive value of plasmatic levels of Neutrophil Gelatinase Associated Lipocalin (NGAL) to reveal acute kidney failure after cardiac surgery in patients with preoperative chronic kidney failure Secondary endpoint is to obtain threshold values of NGAL.
Collection of Blood and Urine Specimens From Volunteers Utilizing Health Examination Services
Chronic DiseasesHypertension3 moreIn summary, the researchers want to construct a longitudinal data bank using voluntary health examination participants. Researchers in the National Taiwan University Hospital (NTUH) campus can utilize these data to clarify the effects of several genetic and environmental factors on various common diseases in Taiwan in the future.
Effect of Malnutrition on the Prognosis in Hemodialysis Patients
Chronic Renal FailureHemodialysis1 moreThe purpose of this study is to examined the effect of malnutrition and/or inflammation on atherosclerosis and prognosis in hemodialysis.
Relationship Between Blood Pressure and Pulse Wave Velocity Measurements in Peritoneal Dialysis...
End Stage Renal DiseasePeritoneal Dialysis1 moreThis study evaluates the relationship between Ambulatory Aortic and Branchial blood pressure vs Office blood pressure measurements with the changes in arterial stiffness indices, in long-term Peritoneal Dialysis (PD) patients. These parameters will be monitored both cross-sectionally at the start of the study and prospectively over a 6 month period.
Economic Evaluation of an Education Platform for Patients With End-stage Renal Disease
End-stage Renal DiseaseDialysis1 more1600 patients with severe, end stage renal disease or post transplant will be randomised 1:1:1 to either standard therapeutic education; or education using a specific app; or the enhanced interactive app using feedback messages. The total follow up duration is 18 months. Primary endpoint is the cost utility of using app-based therapeutic intervention, secondary endpoints are: compliance with treatment guidelines, app use (professionals and patients), budget impact analysis
pH, Hypoxia and Haemodialysis
End Stage Renal Disease on DialysisEnd-stage renal disease typically requires haemodialysis to help replace kidney function. However, changes in oxygen uptake during haemodialysis have been linked to increased all-cause mortality. This complication of haemodialysis is linked to decreasing fluid volume, compromising blood flow to tissue and leukostasis within pulmonary tissue. However, an alternative cause of reduced oxygen availability (hypoxia) during haemodialysis is acute alkalosis. Alkalosis during haemodialysis can cause hypoxia via dysregulated ventilation and impaired ability for tissue to extract oxygen. Despite strong rationale for these mechanisms, few studies have fully explored causes of hypoxia during haemodialysis. Greater understanding may help to mitigate the risk associated with this vital treatment option. The study will comprise of end-stage renal disease patients who regularly undergo haemodialysis. Three blood samples will be attained before, during and after haemodialysis to assess arterial blood gases. In a small subset of patients, white blood cell (WBC) count and cardiac output will be assessed via a non-invasive cardiac output monitor during treatment. Regression analysis will be performed to help identify predictors of hypoxia during haemodialysis. Patient burden is negligible, with blood samples attained from the dialyser as part of routine treatment. In the patients who agree for cardiac output assessment, the patient will be required to have four small noninvasive sensor pads placed on the chest. Patients will be assessed over 3 consecutive treatments during a single week.