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  • Title: The effects of early postnatal dexamethasone therapy on pulmonary outcome in premature infants with respiratory distress syndrome: a two-year follow-up study.
    Author: Lin YJ, Lin CH, Wu JM, Tsai WH, Yeh TF.
    Journal: Acta Paediatr; 2005 Mar; 94(3):310-6. PubMed ID: 16028649.
    Abstract:
    AIM: To evaluate the pulmonary outcome at corrected age of 2 y on preterm infants who participated in a double-blind trial of early postnatal dexamethasone therapy (< 12 h after birth) for the prevention of chronic lung disease. METHODS: Clinical respiratory status, blood gases, acid-base balance and pulmonary function were evaluated at corrected age of 2 y in 116 preterm infants (59 infants in the control group; 57 in the dexamethasone-treated group). In the dexamethasone-treated group, dexamethasone was administered intravenously every 12 h in tapering doses: 0.25 mg/kg on days 1 through 7, 0.12 mg/kg on days 8 through 14, 0.05 mg/kg on days 15 through 21, and 0.02 mg/kg on days 21 through 28. RESULTS: The clinical and laboratory characteristics in the perinatal period were comparable between the groups. At the time of follow-up (mean +/- SD corrected age was 25.1 +/- 4.8 mo for the control group and 24.6 +/- 5.1 mo for the dexamethasone-treated group), there was a slightly lower mean body weight and body length, and a lower psychomotor developmental index in the dexamethasone-treated group than in the control group (10.9 +/- 2.1 vs 11.5 +/- 1.9 kg, 84.4 +/- 6.1 vs 85.9 +/- 5.8 cm, and 82 +/- 24 vs 89 +/- 26, respectively); however, these differences were not statistically significant. There were no significant differences between the control and dexamethasone-treated groups in clinical respiratory status, blood gases, acid-base balance or in lung mechanics (V(T): 9.5 +/- 2.0 vs 9.4 +/- 1.9 ml/kg; V(min): 0.23 +/- 0.04 vs 0.23 +/- 0.03 l/min/kg; C(RS): 13.1 +/- 3.9 vs 12.6 +/- 3.6 ml/kPa/kg; R(RS): 1.56 +/- 0.64 vs 1.62 +/- 0.58 kPa/l/s, respectively). CONCLUSION: There was no apparent adverse respiratory outcome associated with early postnatal dexamethasone therapy.
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