"EFFECT OF HIGH VERSUS LOW DOSES OF HUMAN RECOMBINANT ERYTHROPOIETIN ON THE ANEMIA OF PREMATURITY"

Abstract

Recombinant human erythropoietin (rh-EPO) is known to accelerate erythropoiesis in preterm infants. The purpose of this study was to compare the effectiveness of early treatment with two doses of rh-EPO (high vs. low dose) in the management of anemia of prematurity. Twenty preterm infants with hematocrit (Hct) < 30% when infant’s age was between 2 to 3 weeks after birth or Hct <25% when infant’s age was more than 3 weeks after birth, were divided randomly in two groups, each group including 10 babies. Infants in high dose group received 500 u/kg rh-EPO twice per week and the low dose group received 500 u/kg rh-EPO weekly. All infants were fed human milk supplemented with enteral iron. Hematocrit and reticulocyte counts were determined for each infant at the start of the study, 3 days after start of treatment and one week after the end of treatment. The means of gestational age in high dose and low dose groups were 31.4 ± 2.2 and 31.3±2.0 weeks, respectively. Means of birth weight in high dose and low dose groups were 1366 ± 243 and 1438±249 gr, respectively. The two groups were significantly different in reticulocyte count at 3 days after treatment (P = 0.047) and in hematocrit at the end of study (P < 0.0001). We concluded the early treatment of anemia of prematurity with high dose rh-EPO with supplemental iron significantly increases hematocrit and reticulocyte in preterm infants and reduce the need for blood transfusion in these high risk neonates.