Fetal and maternal risks associated with intrauterine transfusion procedures

Area of Science:

• Perinatology
• Maternal-Fetal Medicine
• Pediatric Hematology

Background:

• Erythroblastosis fetalis necessitates interventions like intrauterine transfusion (IUT).
• Long-term outcomes and risks associated with IUT require ongoing evaluation.
• Assessing maternal and fetal complications is crucial for managing Rh incompatibility.

Purpose of the Study:

• To estimate maternal and fetal risks of intrauterine transfusion (IUT).
• To evaluate the health, intelligence, and behavior of erythroblastosis fetalis recipients post-IUT.
• To determine the correlation of physical, intellectual, and social maturity in IUT survivors.

Main Methods:

• Longitudinal follow-up of a large cohort of fetuses receiving IUT.
• Analysis of maternal and fetal complications.
• Assessment of physical, intellectual, and behavioral development in survivors.

Main Results:

• The upper limit of procedural risk for IUT is estimated at 7.2%.
• Survival rates were 14% for hydropic fetuses and 47% for non-hydropic fetuses.
• Approximately 50% of IUT survivors exhibited abnormalities in physical, intellectual, or social domains; one case of acute lymphocytic leukemia (ALL) was noted.
• Maternal complications occurred in only 2% of cases.

Conclusions:

• Intrauterine transfusion (IUT) is associated with significant risks and potential long-term developmental abnormalities in survivors.
• While IUT improves survival for erythroblastosis fetalis, close monitoring for physical, intellectual, and social development is essential.
• Maternal complications from IUT are relatively low, but fetal outcomes vary significantly based on hydropic status.