Prenatal Rh‐Immune Prophylaxis With 300 μg Immune Globulin Anti‐D In The 28th Week Of Pregnancy

Publisher Website
Google Scholar
Abstract
As immune globulin anti-D given in the immediate post partum period fails to prevent the development of anti-D antibodies in about 1.5-2% of woemn at risk, probably as a result of feto-maternal bleeding during pregnancy, 300 .mu.g of immune globulin anti-D was administered to 609 Rh-negative women in the 28th gestational week. Three hundred and forty-six had Rh-positive babies, and were given additionally 200 .mu.g anti-D post partum. Of these, 291 had an antibody screen test done 10 months after delivery. No anti-D antibodies were found. The test results of the study group were compared with those of a control group of 354 women who did not receive prenatal immune globulin, but otherwise the same examinations and treatment. In this group, 322 had a screen test perormed 10 months post partum or in their next pregnancy, when 1.8% had anti-D antibodies. The difference in immunization incidence between the groups was significant (p < 0.05). There was no difference between the groups regrading the number of women with fetal erythrocytes in serum after delivery, but the number of fetal erythrocytes found was significantly lower in the group receiving prenatal prophylaxis (p<0.001). No adverse effects were found in the infants exposed to anti-D prenatally.