Cohort Study Comparing Short Daily Hemodialysis (HD) With Conventional HD

Cardiovascular Diseases, End-stage Renal Disease, Thrombocytopathy

hemodialysis, platelet function analyzer, bioimpedance, pulse wave velocity, end stage renal disease

This study is examining the effects of short daily hemodialysis on platelet function, fluid volume control, arterial stiffness and patient quality of life, as compared to conventional hemodialysis.

Bleeding is a common cause of morbidity and mortality in patients with end stage renal disease. A major cause of uremic bleeding is due to platelet dysfunction. It has been theorized that in renal failure, toxins accumulate, some of which inhibit primary hemostasis. All aspects of normal platelet function are affected. Platelet function has previously been difficult to quantify but recently a novel test, the platelet function analyzer (PFA-100) has been determined to be both sensitive and specific in assessing platelet function. Conventional hemodialysis (CHD) has been shown to partially correct thrombocytopathy. Enhanced uremic clearance can now be attained through the use of short daily hemodialysis (SDHD). Cardiovascular disease is the most common cause of mortality in dialysis patients, accounting for 40% of deaths. Volume overload is associated with high blood pressure, left ventricular hypertrophy and elevated markers of inflammation and these factors have been associated with increased cardiovascular mortality. SDHD has been shown to control blood pressure and limit volume expansion. Pulse wave velocity (PWV) has been used to assess arterial compliance and reduction of arterial elasticity of large and small arteries which have been associated with cardiovascular outcomes.

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Canada