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Ann Neurol. 1997 Sep;42(3):372-5.

Factor V Leiden mutation: an unrecognized cause of hemiplegic cerebral palsy, neonatal stroke, and placental thrombosis.

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Children's Hospital of Philadelphia, and Department of Neurology, University of Pennsylvania, 19104, USA.


Activated protein C resistance caused by an Arg506Gln mutation in the factor V gene (factor V Leiden mutation) is the most common cause of familial thrombosis. This mutation is associated with arterial and venous thromboembolic disease in neonates, infants, and children, but is not a significant risk factor for ischemic stroke in adults. We report on 3 babies with different neonatal cerebrovascular disorders including ischemic infarction and hemorrhagic stroke who are heterozygous for factor V Leiden mutation. One infant had multiple thrombi in the fetal placental vasculature. This is the first reported association between hemiplegic cerebral palsy, placental thrombosis, and factor V Leiden mutation. We suspect that activated protein C resistance may be an important cause of in utero cerebrovascular disease and hemiplegic cerebral palsy.

[Indexed for MEDLINE]

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