Articles: erythroblastosis.
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Southern medical journal · Jun 1983
Comparative StudyRh immunoglobulin use with placenta previa and abruptio placentae.
Patients with obstetric hemorrhage from placenta previa or abruptio placentae may be at increased risk of Rh sensitization because they fail to receive Rh immunoglobulin (RhIG) or are given an inadequate dose. To evaluate the use of RhIG in this clinical situation, we studied 498 patients with hemorrhage from placenta previa or abruptio placentae treated at a large municipal hospital from 1975 to 1979. ⋯ This rate of RhIG use was equal to that for patients whose infants were delivered without these complications and significantly higher than that for patients with spontaneous abortion and ectopic pregnancy at the same hospital (P less than .05). Prompt administration of an adequate dose of RhIG to candidates with bleeding from placenta previa or abruptio placentae can further reduce Rh hemolytic disease.
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In almost every pregnancy feto-maternal transfusions occur. From the 6th week of pregnancy, blood containing Rhesus antigens may be infused into the maternal circulation and cause sensitization. In case of miscarriage, abortion, ectopic pregnancy and cystic mole the chance of fetomaternal transfusion followed by sensitization of the mother is significantly increased. Therefore immunoprophylaxis with anti-D-immunoglobins should be performed in all these cases.