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  • Title: Neonatal adrenal function after repeat dose prenatal corticosteroids: a randomized controlled trial.
    Author: Ashwood PJ, Crowther CA, Willson KJ, Haslam RR, Kennaway DJ, Hiller JE, Robinson JS.
    Journal: Am J Obstet Gynecol; 2006 Mar; 194(3):861-7. PubMed ID: 16522426.
    Abstract:
    OBJECTIVE: Do repeat prenatal corticosteroids suppress neonatal cortisol concentrations? STUDY DESIGN: Randomized controlled trial of women given weekly repeat corticosteroids or saline placebo, while at risk of preterm birth, until 32 weeks' gestation. RESULTS: Cord serum cortisol concentrations in infants exposed to repeat corticosteroids were similar compared with infants exposed to a single course of corticosteroids (mean difference -26 nmol/L (95% CI -57, 5 nmol/L, P = .10), as were prestress salivary cortisol concentrations on day 3 (median 16.5 vs 15.3 nmol/L, P = .96). The adrenal response to a stressor on day 3 was lower in the repeat corticosteroid group compared with the single course group (median 11.9 vs 21.4 nmol/L, P = .02). Cortisol concentrations were lower in the repeat corticosteroid group on day 7 (median 11.7 vs 18.2 nmol/L, P = .04), but not on days 14 and 21. CONCLUSION: The short- or long-term clinical impact, if any, of these changes in adrenal function needs to be determined.
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