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John Paul Middleton

Professor of Medicine
Medicine, Nephrology
Duke Box 2747, Durham, NC 27705
2424 Erwin Road, Suite 605, Durham, NC 27705

Overview


I. More than 20 million people in the United States have chronic kidney disease (CKD), and these people carry an enormous medical burden.  Patients with CKD suffer from the metabolic sequelae of poor kidney function, hypertension, progressive worsening of glomerular filtration rate (GFR), and from disproportionate cardiovascular diseases. Therefore, a large number of people can benefit from early recognition of CKD, improved understanding of the metabolic and cardiovascular responses to CKD, and by limiting progressive decline of GFR.

II. Current research efforts aim to improve understanding of the association among traditional and novel cardiovascular risks and kidney disease. Ultimately the goal of the ongoing research will be to improve the management of the unique cardiovascular complications that occur in the patients with chronic kidney disease and to reduce the risk of developing advanced CKD.

III. Clinical trials underway at Duke include prospective trials in diabetic nephropathy, end-stage kidney disease, and in focal segmental glomerulosclerosis (FSGS.  In addition, Dr. Middleton serves on the Steering Committee for the NIH Clinical Trial in Focal Segmental Glomerulosclerosis (FSGS). Dr. Middleton and his group is also performing retrospective trials with large clinical databases to determine etiology of and outcomes from sudden cardiac arrest in patients with advanced CKD.

IV. Recent studies have helped identify interventions to reduce progression of hypertensive nephrosclerosis and diabetic nephropathy. The research group has also determined exposures that augment the cardiovascular risk of chronic kidney disease, including CKD that is maintained on hemodialysis.

V. Key words: chronic kidney disease CKD), hypertension, glomerular disease, progression of chronic kidney disease (CKD), cardiovascular complications of chronic kidney disease (CKD), hemodialysis, cardiovascular risk

Current Appointments & Affiliations


Professor of Medicine · 2020 - Present Medicine, Nephrology, Medicine

Recent Publications


Effects of dialysate potassium concentration of 3.0 mmol/l with sodium zirconium cyclosilicate on dialysis-free days versus dialysate potassium concentration of 2.0 mmol/l alone on rates of cardiac arrhythmias in hemodialysis patients with hyperkalemia.

Journal Article Kidney Int · January 2025 The optimal approach towards managing serum potassium (sK+) and hemodialysate potassium concentrations is uncertain. To study this, adults receiving hemodialysis for three months or more with hyperkalemia (pre-dialysis sK+ 5.1-6.5 mmol/l) had cardiac monit ... Full text Link to item Cite

Randomized Trial of Patiromer on Efficacy to Reduce Episodic Hyperkalemia in Patients with ESKD Treated With Hemodialysis.

Journal Article Kidney Int Rep · November 2024 INTRODUCTION: Individuals with end-stage kidney disease (ESKD) maintained on hemodialysis (HD) carry a high risk of cardiac arrhythmias. This risk is heightened by episodic hyperkalemia. The purpose of the study was to investigate whether patiromer adminis ... Full text Link to item Cite

Utilization of Potassium Binders for the Management of Hyperkalemia in Chronic Kidney Disease: A Position Statement by US Nephrologists.

Journal Article Adv Kidney Dis Health · November 2024 Two potassium (K+) binders-patiromer sorbitex calcium and sodium zirconium cyclosilicate-are recommended by international guidelines for the management of hyperkalemia. There is, however, no universally accepted best practice for how to appropriately utili ... Full text Link to item Cite
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Education, Training & Certifications


Virginia Commonwealth University · 1983 M.D.