Rapid diagnosis of respiratory distress syndrome by oral aspirate in premature newborns
Journal Title: Jornal de Pediatria - Year 2019, Vol 95, Issue 4
Abstract
Objective The stable microbubble test on gastric aspirate and on amniotic fluid has been used for the diagnosis of respiratory distress syndrome in the newborn. However, no study has performed this test on oral aspirates from premature infants. The objective of this study was to evaluate the performance of the stable microbubble test on oral aspirates from preterm newborns to predict respiratory distress syndrome. Method This study included infants with gestational age <34 weeks. Oral fluids were obtained immediately after birth and gastric fluids were collected within the first 30 minutes of life. The samples were frozen and tested within 72 hours. Results The sample was composed of paired aspirates from 64 newborns, who were divided into two groups: respiratory distress syndrome group (n=21) and control group (n=43). The median (interquartile range) of the stable microbubble count in the oral samples of infants with respiratory distress syndrome was significantly lower than that of infants who did not develop respiratory symptoms: respiratory distress syndrome group=12 (8–22) stable microbubbles/mm2; control group=100 (48–230)microbubbles/mm2 (p<0.001). The correlation between microbubble count in gastric and oral aspirates was 0.90 (95% confidence interval=0.85–0.95; p<0.001). Considering a cut-off point of 25microbubbles/mm2, the sensitivity and the specificity of the stable microbubble test were 81.4% and 85.7%, respectively. Conclusion The study suggests that the stable microbubble test performed on oral aspirate is a reliable alternative to that performed on gastric fluid for the prediction of respiratory distress syndrome in the newborn.
Authors and Affiliations
Manoel Ribeiro
Keywords
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- EP ID EP612740
- DOI 10.1016/j.jped.2018.04.008
- Views 46
- Downloads 0
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