31Oct 2024
Low Rate of Clinically Significant RBC Antibody Seroconversion Observed in Pregnancy

Low Rate of Clinically Significant RBC Antibody Seroconversion Observed in Pregnancy

A retrospective study analyzing 67,570 deliveries from 2016 to 2023 found a 0.26% rate of clinically significant RBC antibody seroconversion in pregnancy. Among cases with seroconversion, common new antibodies included anti-E, anti-c, and anti-K. Neonatal outcomes indicated that 19.1% of liveborn infants required NICU admission, with only 2.2% needing transfusions unrelated to hemolytic disease of the fetus and newborn (HDFN). Increased maternal age, gravidity, and parity were linked to higher seroconversion rates. The study suggests that routine third-trimester antibody screening may be unnecessary given the low likelihood of clinically significant seroconversion.

  • #pediatrics
  • #gynaecology - ivf

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