Severe Pre-Eclampsia in Multiparous Women: Indication of an Environmental Triggering Agent?

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Abstract
Two case histories are described with conflicting implications for the etiopathogenesis of pre-eclampsia. In both, typical proteinuric pre-eclampsia developed despite a history of previous normotensive pregnancy. In the first case, the disease was associated with a change of husband, consistent with the view that pre-eclampsia arises from an inadequate maternal immune response to paternal antigens inherited by the fetus. The second case, however, concerned a woman who developed pre-eclampsia for the first time in her third pregnancy by the same reproductive partner. We conclude that either more than one underlying cause can result in the clinical syndrome of pre-eclampsia, or that pre-eclampsia is caused by an environmental factor. The possibility that pre-eclampsia may be initiated by an infectious agent is briefly explored in the light of the clinical histories described and well-established epidemiological, clinical and laboratory data.

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