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Neutropenia in an Extremely Premature Infant Treated With Recombinant Human Granulocyte Colony-Stimulating Factor

Robert L. Roberts, MD, PhD; Cynthia M. Szelc, MD; Steven M. Scates, MD; Maria T. Boyd, RN, MN; Ken M. Soderstrom; Mark W. Davis, MS; John A. Glaspy, MD
Am J Dis Child. 1991;145(7):804-807. doi:10.1001/archpedi.1991.02160070104030.
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Neutropenia in the newborn is often associated with sepsis, maternal hypertension, or prematurity. We describe a 654-g infant born at 30 weeks' gestation by cesarean section due to severe maternal hypertension. His course was complicated by five episodes of sepsis, including three with group B streptococcus. The results of hematologic and immunologic studies were normal except that absolute neutrophil counts were low (<1 × 109/L with intermittent increases during sepsis. Human recombinant granulocyte colony-stimulating factor administered subcutaneously (10 μg/kg per day initially) resulted in an absolute neutrophil count of greater than 30 ×109/L within 2 weeks. The dosage was lowered and the absolute neutrophil counts were maintained at 8 to 12 × 109/L with no further septic episodes. The human recombinant granulocyte colony-stimulating factor therapy was discontinued after 7 months, and the patient remained healthy with an absolute neutrophil count of greater than 2×109/L. Thus, treatment with human recombinant granulocyte colony-stimulating factor may be useful as a temporary measure for neonatal neutropenia associated with sepsis. A controlled, clinical trial is warranted.

(AJDC. 1991;145:808-812)

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