Background: Dexamethasone is widely used for the treatment of chronic lung disease (CLD), but its mechanism of action is still not clearly understood.
Methods: Respiratory status, bodyweight, blood pressure, urine volume, fluid intake and nutrient intake were investigated in 12 infants with CLD during treatment with dexamethasone.
Results: The mean gestational age of the patients was 26.3 +/- 2.5 weeks and their mean birthweight was 807 +/- 232 g. Treatment with dexamethasone was started at a mean age of 41 +/- 23 days. The ventilatory index (VI) improved after treatment was started. Blood pressure and urine volume increased significantly after treatment, but weight gain was poor during this time. Fluid and nutrient intake did not change before and after treatment. The degree of improvement in the VI after treatment was significantly correlated with an increase in urine volume.
Conclusions: The results suggest that a rise in blood pressure as a result of dexamethasone treatment and the subsequent diuretic effect of this rise may play a role in improvement in respiratory status.
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| http://dx.doi.org/10.1046/j.1328-8067.2001.01517.x | DOI Listing |
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