The effects of early postnatal dexamethasone therapy on pulmonary outcome in premature infants with respiratory distress syndrome: A two‐year follow‐up study
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 (5 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 (VT: 9.5 ± 2.0vs 9.4 ± 1.9 ml/kg; Vmin: 0.23 ± 0.04 vs 0.23 ± 0.03 l/min/kg; CRS: 13.1 ± 3.9 vs 12.6 ± 3.6 ml/kPa/kg; RRS: 1.56 ± 0.64 vs 1.62 ± 0.58 kPa/l/s, respectively).
: There was no apparent adverse respiratory outcome associated with early postnatal dexamethasone therapy.
No Supplementary Data
Document Type: Research Article
Affiliations: Department of Paediatrics, College of Medicine, National Cheng Kung University, Tainan, and China Medical University, Taichung, Taiwan, R. O. C.
Publication date: 2005-03-01