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AAP Grand Rounds 3:62-63 (2000) Maternal Anticonvulsant Therapy and Neonatal Blood CoagulationSource: Hey E. Effect of maternal anticonvulsant treatment on neonatal blood coagulation. Arch Dis Child. 1999;81:F208210.
This prospective and longitudinal study was designed to investigate the impact of maternal anticonvulsant use on the blood coagulation of the newborn. The study was prompted by a report in 1970 describing the high incidence of prothrombin deficiency among infants born to mothers taking anticonvulsant treatment.1 During the 15 years of this study at Newcastle upon Tyne, cord blood prothrombin times were measured in 137 consecutive term newborns of mothers who were on chronic treatment with phenobarbitone, phenytoin, and/or carbamazepine. The anticonvulsant levels were measured in 131 mothers at delivery. A second umbilical venous sample was obtained in 83 of the newborns after administration of 1mg of intravenous vitamin K.
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