[Induction of fetal lung maturity with combined hormonal therapy in premature labor].

Thyrotropin Releasing Hormone (THR) induce fetal pulmonary maturation by direct stimulation, and increase of fetal T3 and T4 which produce biochemical and structural pulmonary maturation. To evaluate the effectivity of TRH associated to corticoides in the prevention of respiratory distress syndrome (RDS) in premature labor, we administered TRH plus Cidoten to patients with imminent premature labor and gestational age (GA) < or = 32 weeks. In a total of 12 patients, tolerance was good in 85% (n = 10), birthweight was 1.782 +/- 488 g (x +/- 2 SD). RDS incidence of only 15.3% and chronic lung disease (CLD) incidence = 0. Newborn of mothers treated with TRH plus corticoids form in evident premature labor in our unit, showed laser rates of RDS and CLD than the described in literature for newborn of similar weight and GA treated only with corticoids.