Tariq Shafi

Bernard G Jaar6
Stephen M Sozio6
Navdeep Tangri4
Rulan S. Parekh4
6Bernard G Jaar
6Stephen M Sozio
4Navdeep Tangri
4Rulan S. Parekh
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BACKGROUND Multiple solutes are retained in uremia, but it is currently unclear which solutes are toxic. Small studies suggest that protein-bound solutes, such as p-cresol sulfate and indoxyl sulfate and intracellular solutes, such as methylamine (MMA) and dimethylamine (DMA), may be toxic. Our objective was to test whether elevated levels of these solutes(More)
  • Tariq Shafi, Stephen M. Sozio, Laura C. Plantinga, Bernard G. Jaar, Edward T. Kim, Rulan S. Parekh +4 others
  • 2013
OBJECTIVE Assays for serum total glycated proteins (fructosamine) and the more specific glycated albumin may be useful indicators of hyperglycemia in dialysis patients, either as substitutes or adjuncts to standard markers such as hemoglobin A1c, as they are not affected by erythrocyte turnover. However, their relationship with long-term outcomes in(More)
  • Tariq Shafi, Timothy W. Meyer, Thomas H. Hostetter, Michal L. Melamed, Rulan S. Parekh, Seungyoung Hwang +3 others
  • 2015
BACKGROUND AND OBJECTIVES Numerous substances accumulate in the body in uremia but those contributing to cardiovascular morbidity and mortality in dialysis patients are still undefined. We examined the association of baseline free levels of four organic solutes that are secreted in the native kidney - p-cresol sulfate, indoxyl sulfate, hippurate and(More)
BACKGROUND Several observational studies have evaluated the effect of a single exposure window with blood pressure (BP) medications on outcomes in incident dialysis patients, but whether BP medication prescription patterns remain stable or a single exposure window design is adequate to evaluate effect on outcomes is unclear. METHODS We described patterns(More)
BACKGROUND Sudden cardiac death occurs commonly in the end-stage renal disease population receiving dialysis, with 25% dying of sudden cardiac death over 5 years. Despite this high risk, surprisingly few prospective studies have studied clinical- and dialysis-related risk factors for sudden cardiac death and arrhythmic precursors of sudden cardiac death in(More)
BACKGROUND This is the first study that has examined non-cardiac incidental findings in research cardiac computed tomography (CT) of hemodialysis patients and their relationship with patient characteristics. METHODS We performed a cross-sectional analysis in the Predictors of Arrhythmic and Cardiovascular Events in End-Stage Renal Disease (PACE) study, a(More)
BACKGROUND There have been major changes in the management of anemia in US hemodialysis patients in recent years. We sought to determine the influence of clinical trial results, safety regulations, and changes in reimbursement policy on practice. METHODS We examined indicators of anemia management among incident and prevalent hemodialysis patients from a(More)
BACKGROUND The Chronic Kidney Disease Epidemiology Collaboration equation for estimation of glomerular filtration rate (eGFR(CKD-EPI)) improves GFR estimation compared with the Modification of Diet in Renal Disease Study equation (eGFR(MDRD)) but its association with mortality in a nationally representative population sample in the US has not been studied.(More)
BACKGROUND Evidence is lacking to inform providers' and patients' decisions about many common treatment strategies for patients with end stage renal disease (ESRD). METHODS/DESIGN The DEcIDE Patient Outcomes in ESRD Study is funded by the United States (US) Agency for Health Care Research and Quality to study the comparative effectiveness of: 1)(More)
  • Rachel M. Kruzan, Charles A. Herzog, Aozhou Wu, Yingying Sang, Rulan S. Parekh, Kunihiro Matsushita +5 others
  • 2016
BACKGROUND Sudden cardiac death (SCD) is the most common etiology of death in hemodialysis patients but not much is known about its risk factors. The goal of our study was to determine the association and risk prediction of SCD by serum N-terminal prohormone of brain natriuretic peptide (NTproBNP) troponin I (cTnI) in hemodialysis patients. METHODS We(More)