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Morphologic and Functional Changes of Left Ventricle in Dialyzed Patients After Treatment with Recombinant Human Erythropoietin (r-HuEPO)

B. Jeren-Struji, MD, PhD

V. Raos, MD, PhD

T. Jeren, MD, PhD

S. Horvatin-Godler, MD

B. Jeren-Struji

Clinical Hospital "Dubrava" Department of Dialysis University Hospital for Infectious Diseases 10000 Zagreb, Croatia

Dysfunction of the cardiovascular system is a common complication of chronic renal insufficiency. Many factors can cause left ventricular hypertrophy (LVH), and hyperten sion and anemia are among them. They play an important role in the pathogenesis of LVH as well as in the development of cardiac dysfunction. Echocardiography enables early detection of functional macrocirculatory changes as well as adequate measuring of cardiac structures and LV mass. Anemia of end-stage chronic renal insufficiency (ESRD) is only one among its many complications and has complex pathogenesis; one of the primary factors causing anemia is insufficient production of erythropoietin, a leading factor in the production of erythropoiesis. Anemia correction with recombinant human erythropoietin (r-HuEPO) in ESRD has a positive effect on the cardiovascular system. In this study the authors examined the hemodynamic effect of erythropoietin in anemic patients undergoing hemodialysis and observed its positive effect on the cardiovascular system. Twenty-two patients were included in the study (13 men and 9 women) mean age x=39.5 years. All patients were dialyzed three times a week for 4 hours and were all treated, according to protocol, with r-HuEPO for 8 months. Left ventricular mass was measured by the Penn Convention formula. The authors noticed the effectiveness of this therapy through an increase of hemoglobin of 35% and of hematocrit of 34% and a direct effect on the cardiovascular system. Echocardiographic findings showed decrease of LV mass from 391 to 274 mg (30%).

The correction of renal anemia with erythropoietin leads to structural microcircula tory changes and partial morphologic regression of preexistent LVH, which again leads to regression of cardiac dysfunctions and improved hemodynamic effect, physical capacity, and cardiopulmonary status, and ultimately better quality of life for dialyzed patients.

Angiology, Vol. 51, No. 2, 131-139 (2000)
DOI: 10.1177/000331970005100206


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