Overview
Rhesus isoimmunization due to anti-Cw occurs when maternal anti-Cw antibodies cross the placenta, potentially causing hemolytic disease of the newborn (HDN). This condition can lead to severe anemia and other complications in affected fetuses and neonates 1.Diagnosis
Serological Testing: Detection of maternal anti-Cw antibodies through serological assays 1.
Fetal Monitoring: Regular ultrasound monitoring for signs of anemia, such as increased peak systolic velocity in the ductus venosus 1.
Amniocentesis: Analysis of amniotic fluid for bilirubin levels to assess fetal hemolysis 1.Management
Intrauterine Blood Transfusion: For severe cases, intrauterine transfusions with Rh-negative blood are indicated 1.
Postnatal Care: Immediate postnatal exchange transfusions for affected neonates 1.
Monitoring and Supportive Care: Close monitoring of hemoglobin levels and supportive care including phototherapy if jaundice develops 1.Special Populations
Pregnancy: Close monitoring and intervention planning based on serological and fetal assessment results are crucial 1.
Pediatrics: Neonates require vigilant postnatal management including potential exchange transfusions 1.Key Recommendations
Regular Serological Screening: Routinely screen pregnant women for anti-Cw antibodies to identify at-risk pregnancies (Evidence: Expert opinion) 1.
Fetal Surveillance: Implement regular ultrasound monitoring and consider amniocentesis for assessing fetal well-being in pregnancies with maternal anti-Cw antibodies (Evidence: Expert opinion) 1.
Early Intervention: Initiate intrauterine transfusions when indicated based on fetal monitoring results to prevent severe anemia (Evidence: Expert opinion) 1.References
1 Oyston JP, Burrows FA, Lerman J. Factors influencing the R-R interval during central venous injection in newborn swine. Canadian journal of anaesthesia = Journal canadien d'anesthesie 1989. link