BMC pediatrics · 2021
Modified lung ultrasound score predicts ventilation requirements in neonatal respiratory distress syndrome.
СтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Szymański Piotr, Kruczek Piotr, Hożejowski Roman, Wais Piotr
Аннотация
BACKGROUND: We propose a modified lung ultrasound (LUS) score in neonates with respiratory distress syndrome (RDS), which includes posterior instead of lateral lung fields, and a 5-grade rating scale instead of a 4-grade rating scale. The purpose of this study was to evaluate the reproducibility of the rating scale and its correlation with blood oxygenation and to assess the ability of early post-birth scans to predict the mode of respiratory support on day of life 3 (DOL 3). As a secondary objective, the weight of posterior scans in the overall LUS score was assessed.
METHODS: We analyzed 619 serial lung scans performed in 70 preterm infants < 32 weeks gestation and birth weight < 1500 g. Assessments were performed within 24 h of birth (LUS0) and on days 2, 3, 5, 7, 10, 14, 21 and 28. LUS scores were correlated with oxygen saturation over fraction of inspired oxygen (S/F) and mode of respiratory support. Interrater agreement was determined with the intraclass correlation coefficient (ICC) and Cronbach's alpha. Probabilities of the need for various respiratory support modes on DOL 3 were assessed with ordinal logistic regression. Least square (ls) means of the posterior and anterior pulmonary field scores were compared.
RESULTS: The LUS score correlated significantly with S/F (Spearman rho = -0.635; p < 0.0001) and had excellent interrater agreement (ICC = 0.94, 95% CI 0.93-0.95; Cronbach's alpha = 0.99). Significant predictors of ventilation requirements on DOL 3 were LUS0 (p < 0.016) and birth weight (BW) (p < 0.001). In the ROC analysis, LUS0 had high reliability in prognosing invasive ventilation on DOL 3 (AUC = 0.845 (95% DeLong CI: 0.738-0.951; p < 0.001)). Invasive ventilation was the most likely mode of respiratory support for LUS0 scores: ≥7 (in infants with BW 900 g), ≥ 10 (in infants with BW 1050 g) and ≥ 15 (in infants with BW 1280 g). Posterior fields exhibited significantly higher average scores than anterior fields. Respective ls means (confidence levels) were 4.0 (3.8-4.1) vs. 2.2 (2.0-2.4); p < 0.001.
CONCLUSIONS: Post-birth LUS predicts ventilation requirements on DOL 3. Scores of posterior pulmonary fields have a predominant weight in the overall LUS score.
METHODS: We analyzed 619 serial lung scans performed in 70 preterm infants < 32 weeks gestation and birth weight < 1500 g. Assessments were performed within 24 h of birth (LUS0) and on days 2, 3, 5, 7, 10, 14, 21 and 28. LUS scores were correlated with oxygen saturation over fraction of inspired oxygen (S/F) and mode of respiratory support. Interrater agreement was determined with the intraclass correlation coefficient (ICC) and Cronbach's alpha. Probabilities of the need for various respiratory support modes on DOL 3 were assessed with ordinal logistic regression. Least square (ls) means of the posterior and anterior pulmonary field scores were compared.
RESULTS: The LUS score correlated significantly with S/F (Spearman rho = -0.635; p < 0.0001) and had excellent interrater agreement (ICC = 0.94, 95% CI 0.93-0.95; Cronbach's alpha = 0.99). Significant predictors of ventilation requirements on DOL 3 were LUS0 (p < 0.016) and birth weight (BW) (p < 0.001). In the ROC analysis, LUS0 had high reliability in prognosing invasive ventilation on DOL 3 (AUC = 0.845 (95% DeLong CI: 0.738-0.951; p < 0.001)). Invasive ventilation was the most likely mode of respiratory support for LUS0 scores: ≥7 (in infants with BW 900 g), ≥ 10 (in infants with BW 1050 g) and ≥ 15 (in infants with BW 1280 g). Posterior fields exhibited significantly higher average scores than anterior fields. Respective ls means (confidence levels) were 4.0 (3.8-4.1) vs. 2.2 (2.0-2.4); p < 0.001.
CONCLUSIONS: Post-birth LUS predicts ventilation requirements on DOL 3. Scores of posterior pulmonary fields have a predominant weight in the overall LUS score.