BACKGROUND Up to 90% of neonates with congenital or perinatal cytomegalovirus (CMV) infection are asymptomatic, and little is known about CMV-associated thrombocytopenia after the neonatal period. We investigated the clinical findings of a series of infants diagnosed with CMV infection and thrombocytopenia. METHODS From July 2005 to July 2008, infants aged younger than 6 months with thrombocy...

BACKGROUND Sick neonates frequently develop severe thrombocytopenia. OBJECTIVE AND METHODS In order to test the ability of fetal mice to increase their megakaryocyte size and ploidy in response to thrombocytopenia, we injected an antiplatelet antibody (MWReg30) into pregnant mice daily for 7 days, and into nonpregnant adult mice to serve as controls. After that time, platelet counts were obta...

Fetal and neonatal alloimmune thrombocytopenia (FNAIT) is a potentially devastating condition, which may lead to intracranial haemorrhage (ICH) in the fetus or neonate, often with death or major neurological damage as consequence. In the absence of screening, preventive measures are only possible in the next pregnancy of women with an affected child. Controversy exists on the best intervention ...

Neonatal alloimmune thrombocytopenia (NAIT) is a life-threatening disorder caused by fetomaternal platelet incompatibility analogous to that seen in rhesus (Rh) disease. In NAIT , maternal immunoglobulin G (IgG) antiplatelet antibodies cross the placenta, resulting in rapid destruction and removal of fetal platelets by the reticuloendothelial system. Studies have shown that NAIT has an incidenc...

Neonatal lupus erythematosus is an uncommon transplacentally acquired autoimmune disorder. The most common clinical manifestations are skin rash, congenital atrioventricular block, thrombocytopenia, leukopenia, anemia, and hepatosplenomegaly. Usually, the skin rash resembles subacute cutaneous lupus, but different forms of rash have been reported in neonatal lupus erythematosus and some are rar...