Plasma Aldosterone Concentration at Delivery and during the Newborn Period

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Abstract

Aldosterone concentrations in plasma of women on normal sodium intake undergoing cesarean section were 3.7±1.4 ng/100 ml (mean±1 SD). These values were significantly lower (P < 0.001) than those observed in mothers on normal sodium diet, delivered by the vaginal route (14.9±7.0 ng/100 ml). A significant elevation (P < 0.001) of the concentrations was found if the mothers had been on sodium restriction and/or diuretics (44.9±24.2 ng/100 ml). In supine position, adult nonpregnant subjects have aldosterone concentrations in plasma of 1.7±1.4 ng/100 ml on normal sodium intake and of 16.7±8.1 ng/100 ml on low sodium diet.

Authors

Inese Z. Beitins, Francis Bayard, Lynne Levitsky, Isadore G. Ances, Avinoam Kowarski, Claude J. Migeon