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  • Title: Haemodynamic changes and exercise tolerance in dialysis patients treated with erythropoietin.
    Author: Jurić M, Rupcić V, Topuzović N, Jakić M, Brlosić R, Rusić A, Karner I, Stipanić S, Kes P.
    Journal: Nephrol Dial Transplant; 1995; 10(8):1398-404. PubMed ID: 8538932.
    Abstract:
    The aim of our study was to evaluate cardiovascular function at rest and during exercise in dialysis patients before and after treatment with Epo and to examine the changes in left ventricular mass as the consequence of treatment for anaemia. We applied echocardiography and radionuclide ventriculography at rest and after exercise in our research. Following treatment with Epo there was a decrease in the initially high cardiac output (CO) and cardiac index (CI) from 7.5 to 6.31/min and from 4.3 to 3.61/min/m2 respectively. No changes were noted in mean diastolic (DPB) and mean blood pressure (MBP), as well as the initially increased peripheral resistance index (TPRi) of 2582.3 +/- 2097.3 dyn-s-cm-5.m2. Nevertheless, end-diastolic (EDV) and end-systolic (ESV) volume were significantly decreased (P < 0.05), but the ejection fraction (EF) remained unchanged (73.9%). The decrease in the mean values for left ventricular mass (LVM) was significant only within the subgroup of dialysed patients who initially had larger left ventricular mass (P < 0.01). The functional capacity of the CV system measured during exercise increased from four metabolic equivalents (METs) to 6 METs (P < 0.01). A significant increase in blood volume was also observed following treatment of anaemia. The haemodynamic consequences of Epo therapy for the treatment of anaemia were quite positive. However, we would like to point out certain concerns regarding the dialysed patients with initially lower values for left ventricular mass and cardiac output, since the patients within this group developed left ventricular hypertrophy and an increase in cardiac output.
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