432 To determine the rate of decline of fetal hemoglobin following an intrauterine blood transfusion

Hemolytic disease of the fetus and newborn (HDFN) is characterized by fetal anemia, secondary to maternal alloantibody-mediated fetal erythrocyte destruction. While RhD immunoprophylaxis has reduced the requirement for intrauterine blood transfusion (IUT), this procedure remains the cornerstone of treatment for severe fetal anemia. The objective of this study was to calculate the rate of daily decline in fetal haemoglobin (FHb) following IUT for...