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Erythropoietin in pregnancies complicated by severe anemia of renal failure
J Yankowitz1, B Piraino, S A Laifer
1Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco.
Background:
Recombinant human erythropoietin has been approved for treatment of the anemia of renal failure since 1989, yet data regarding the safety and efficacy of this drug in pregnancy are limited. We used recombinant human erythropoietin to treat the anemia of renal disease in three pregnant women.
Cases:
Nadir hematocrit values before initiation of erythropoietin were 19-23%. Erythropoietin, 50-160 U/kg/week subcutaneously, was begun at 14-26 weeks' gestation. Initially, the rise in hematocrit averaged 0.6-2% each week, with peak values of 26.7-32%. Iron supplementation was given simultaneously. Maternal and neonatal outcomes were favorable despite the development of preeclampsia or worsening renal function requiring early delivery.
Conclusion:
In this small series, erythropoietin begun during the second trimester in a dose of about 100 U/kg/week, in conjunction with orally administered iron, appeared to be effective in treating the anemia of renal failure during pregnancy. Additional experience is needed to evaluate the safety of this medication during pregnancy.