Unexplained Intracranial Haemorrhage in Utero: The Battered Fetus?

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Abstract
Twenty stillborn infants with unexplained intracranial haemorrhages were identified in a review of approximately 3,500 perinatal postmortems performed between 1966 and 1982. After apparently uneventful pregnancies, fetal death occurred before the onset of labour and was recognized at a mean of 10 days before delivery; 80% had subdural haemorrhages, others had intraventricular and/or intracerebral haemorrhages, and many had haemorrhages at more than one of these sites. These haemorrhages were of sufficient size to have caused death and no other causes were found at postmortem examinations. All 20 mothers were immigrants to New Zealand from the Pacific Islands and almost all were older, married, multi-gravidas with uneventful medical histories and in stable socio-economic circumstances. In the period studied the incidence of stillbirths with unexplained intracranial haemorrhages was 1.15 per 1,000 Pacific Islander births and, at one hospital, these haemorrhages were found in 14.6% of Pacific Islander stillbirths. There were no unexplained intracranial haemorrhages in other racial groups. Prenatal subdural haemorrhage without a history of maternal trauma is extremely rare. In the absence of supporting maternal histories and other fetal or maternal injuries the possibility that these are 'battered' fetuses remains circumstantial.

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