Trombocytopenia is the most incident fetal and neonatal abnormality, recorded in 1-5% of children at birth. The incidence of fetal and neonatal alloimmune thrombocytopenia is 1 case per 1000 neonates. It is virtually unpredictable in first pregnancy and has a trend to aggravation with subsequent pregnancies. The risk of intracranial hemorrhage in fetal and neonatal alloimmune thrombocytopenia reaches 20%, half of the cases are intrauterine. The treatment of neonatal alloimmune thrombocytopenia consists of transfusions of maternal or other HPA-compatible platelets and highdoses of intravenous immunoglobulin (IVIG). Transimmune thrombocytopenia is caused by passage of antiplatelet antibodies from the mother with immune thrombocytopenia. The article presents a case report of trans-immune thrombocytopenia in the early neonatal period. On the base of the medical history of mother and clinical and laboratory parameters of a newborn the baby was diagnosed and pathogenetic treatment was carried out.
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