Although maternal morbidity was increased in the older gravidas, the overall neonatal outcome did not appear to be affected.

Neonatal alloimmune thrombocytopenia results from the formation of a maternal antibody to a paternal antigen on fetal platelets. Intracranial hemorrhage, which may be antenatal, occurs in approximately 15 to 20 percent of infants with this form of thrombocytopenia. In families with an affected infant, 75 percent of subsequent infants are affected. We report the results of antenatal treatment with intravenous gamma globulin, with or without dexamethasone, in seven pregnant women who had previously had infants who had severe alloimmune thrombocytopenia. The platelet count increased by a mean (+/- SD) of 72.5 +/- 62 x 10(9) per liter in the six fetuses in whom periumbilical blood sampling was performed. All seven treated fetuses had platelet counts above 30 x 10(9) at birth, and none had an intracranial hemorrhage, in contrast to all seven of their respective untreated siblings, who had lower platelet counts and three of whom had intracranial hemorrhages (antenatal in two infants). Mild intrauterine growth retardation was observed in one treated infant; all seven infants have developed normally in the two months to four years since birth. We conclude that intravenous gamma globulin, with or without dexamethasone, is effective in elevating the fetal platelet count in severe cases of neonatal alloimmune thrombocytopenia and in helping to avoid intracranial hemorrhage.

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Although twin pregnancies following IVF or GIFT are more likely to result in discordant birth weight infants, the perinatal outcome is comparable to that of spontaneously conceived twin pregnancies.

We have identified six new cases of Fanconi's anaemia (FA) who had pregnancies, and reviewed 11 others from the literature. At least 110 FA females have reached 16 years of age or more, of whom 15% became pregnant. There were a total of 26 pregnancies, resulting in 19 births and 18 surviving children. Anaemia and/or thrombocytopenia worsened during pregnancy in 10 patients, but five subsequently improved: seven had no haematological problems. Seven of the FA patients who had pregnancies died subsequently from cancer, and two from thrombocytopenic bleeding 3 and 20 years later. There were no peripartum deaths. Pregnancy in FA is clearly possible, with increased risks that are manageable from both the haematological and the obstetric aspects.