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[Pediatric aspects of success and failure of anti-D-prophylaxis]
Insights
Implementing anti-D prophylaxis, particularly after abortions, can significantly decrease the need for exchange transfusions in newborns due to rhesus immunization. This preventative measure is crucial for reducing hemolytic disease of the newborn.
Area of Science:
- Pediatrics
- Immunology
- Neonatal Care
Context:
- Over 10 years, 485 exchange transfusions were performed at Children's Hospital of the City of Vienna--Glanzing.
- Approximately 25% of these transfusions were for rhesus immunization.
- While phototherapy and phenobarbital reduced transfusions for hyperbilirubinemia and ABO incompatibility by 90%, rhesus immunization cases saw only a 55% reduction.
Purpose:
- To evaluate the effectiveness of anti-D prophylaxis in preventing hemolytic disease of the newborn caused by rhesus immunization.
- To analyze the incidence of anti-D prophylaxis in mothers requiring exchange transfusions for their infants.
- To determine the impact of antenatal and post-abortion anti-D prophylaxis on reducing the need for neonatal exchange transfusions.
Summary:
- A significant majority (98%) of infants requiring exchange transfusions for rhesus immunization were born to mothers who had not received anti-D prophylaxis.
- Only 5 mothers received anti-D prophylaxis after their first pregnancy.
- Lack of prophylaxis was noted in 126 women with multiple pregnancies and 70 mothers after abortions.
Impact:
- Consistent anti-D prophylaxis, especially encompassing natural and induced abortions, can substantially lower the incidence of rhesus-sensitized newborns.
- This preventative strategy is key to reducing the number of infants requiring exchange transfusions for hemolytic disease of the newborn.
- Improved adherence to anti-D prophylaxis protocols can lead to better neonatal outcomes and decreased healthcare burden.
Abstract:
During the last 10 years 485 exchange transfusions have been performed in the Children's Hospital of the City of Vienna--Glanzing, about 25% for rhesus immunization. While the frequency of exchange transfusions due to hyperbilirubinaemia and ABO incompatibility could be reduced by 90% by phototherapy and phenobarbital prophylaxis, only 55% reduction was observed in connection with rhesus immunization. Anti-D prophylaxis after the 1. pregnancy had only been carried out in 5 mothers (seen as secunda or multi para). In the 221 cases where exchange transfusion became necessary, 196 mothers of these children never had anti-D prophylaxis. This corresponds to 98%. There were 126 women with multiple pregnancies without abortion and 70 mothers, where anti-D prophylaxis had not been carried out after abortion. Consequently anti-D prophylaxis, especially including abortions both natural and induced, could substantially reduce the number of rhesus-sensitized newborns, requiring exchange transfusion.