title: Neutropenia in an extremely premature infant treated with recombinant human granulocyte colony-stimulating factor.
abstract: 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 (less than 1 x 10(9)/L) with intermittent increases during sepsis. Human recombinant granulocyte colony-stimulating factor administered subcutaneously (10 micrograms/kg per day initially) resulted in an absolute neutrophil count of greater than 30 x 10(9)/L within 2 weeks. The dosage was lowered and the absolute neutrophil counts were maintained at 8 to 12 x 10(9)/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 x 10(9)/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.
authors.affiliation: Department of Pediatrics, UCLA Medical Center 90024.
authors.forename: R L
authors.initials: RL
authors.lastname: Roberts
authors.forename: C M
authors.initials: CM
authors.lastname: Szelc
authors.forename: S M
authors.initials: SM
authors.lastname: Scates
authors.forename: M T
authors.initials: MT
authors.lastname: Boyd
authors.forename: K M
authors.initials: KM
authors.lastname: Soderstrom
authors.forename: M W
authors.initials: MW
authors.lastname: Davis
authors.forename: J A
authors.initials: JA
authors.lastname: Glaspy
mesh_terms: D016179:Granulocyte Colony-Stimulating Factor / Q000627:therapeutic use*; D006801:Humans; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000628:therapy*; D007958:Leukocyte Count; D008297:Male; D009503:Neutropenia / Q000628:therapy*; D016188:Receptors, Granulocyte Colony-Stimulating Factor
chemical_list: D016188:Receptors, Granulocyte Colony-Stimulating Factor; D016179:Granulocyte Colony-Stimulating Factor