期刊
NEONATOLOGY
卷 108, 期 4, 页码 287-292出版社
KARGER
DOI: 10.1159/000438453
关键词
Lung ultrasound; Static lung compliance; B-lines
类别
Background: B-lines in lung ultrasound can be used to estimate lung liquid. B-lines are ring-down artifacts that arise from alterations to subpleural lung parenchyma. Lung ultrasound has been used to differentiate between diseases causing respiratory symptoms in neonates. B-lines are also seen in healthy infants during postnatal adaptation. Static lung compliance is a measure of the elasticity of the lungs. Objectives: Our aim was to document lung ultrasound findings, static lung compliance and their relationship during postnatal adaptation in healthy term infants. Methods: Lung ultrasound and measurement of static lung compliance were performed in 34 infants at ages of 0-4 and 24 h. B-lines in lung ultrasound were scored using a 5-step scale. Separate ultrasound scores for the upper and lower fields were also calculated. Results: A significant decrease in the abundance of B-lines and a concomitant significant improvement in static lung compliance was observed from <4 to 24 h of age. At <4 h the B-lines were significantly more abundant in the lower fields. No significant correlation existed between lung ultrasound and static lung compliance. Conclusion: The concomitant decrease in the B-lines in ultrasound and the increase in lung compliance during the first 24 h are likely to reflect clearance of lung liquid. (C) 2015 S. Karger AG, Basel
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