Association of ABO incompatibility with red blood cell indices of cord blood unit.

Background: Maternal-fetal ABO incompatibility is one of the causes of neonatal hyperbilirubinemia. We postulate that hemoglobin (Hb), hematocrit (Hct), and red blood cell (RBC) values for cord blood units (CBUs) are lower and erythroblast values higher for maternal-fetal ABO incompatible dyads than for compatible dyads.

Objective: We investigated the relationship between Hb, Hct, RBC, and erythroblast CBU values and maternal-fetal ABO blood type compatibility.

Preharvest hematopoietic progenitor cell counts predict CD34+ cell yields in granulocyte-colony-stimulating factor-mobilized peripheral blood stem cell harvest in healthy donors.

Background: The hematopoietic progenitor cell (HPC) count measured by the Sysmex hematology analyzer can determine the timing for leukapheresis in autologous peripheral blood stem cell (PBSC) harvest. We evaluated whether a HPC count could predict CD34+ cell yield in healthy, unrelated donors after granulocyte-colony-stimulating factor mobilization.

Study Design And Methods: A total of 117 healthy donors underwent 161 PBSC leukapheresis procedures in our institution.