Pregnancy-Induced Hypertension and Congenital Adrenal Hypoplasia
1989
Adrenal weights and histologic features in an autopsy population of 759 fetuses and neonates were correlated with the presence or absence of pregnancy-induced hypertension. Hypoplastic fetal adrenals with normal proportions of fetal and adult cortical layers (miniature histologic type) had combined adrenal weights less than 1 g, and were noted in 11 fetuses and neonates born to 39 mothers with pregnancy-induced hypertension, two born to 35 mothers with suggested pregnancy-induced hypertension, and 45 born to 685 mothers with no pregnancy-induced hypertension. Hypoplastic fetal adrenals were associated significantly with pregnancy-induced hypertension by chi 2 analysis (P less than .01). When a more stringent criterion for fetal adrenal hypoplasia was used (combined adrenal weight/body weight ratio of less than 1:1000), five cases were associated with pregnancy-induced hypertension, three with suggested pregnancy-induced hypertension, and seven with normal maternal blood pressures (P less than .001). This study confirms the relationship between pregnancy-induced hypertension and reduced fetal adrenal mass. We speculate that reduced production of dehydroepiandrosterone sulfate by the small adrenals may be related to maternal hypertension.
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