scholarly journals Surfactant Replacement in Preterm Neonates and Lung Ultrasound Score in Daily Life of Neonatal ICUs

CHEST Journal ◽  
2021 ◽  
Vol 160 (6) ◽  
pp. 1995-1997
Author(s):  
Daniele De Luca
PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0255332
Author(s):  
Letizia Capasso ◽  
Daniela Pacella ◽  
Fiorella Migliaro ◽  
Daniele De Luca ◽  
Francesco Raimondi

Respiratory distress syndrome (RDS) is a leading cause of morbidity and mortality in preterm infants due to primary surfactant deficiency. Surfactant replacement has greatly improved the short and long term prognosis of RDS but its administration criteria remain uncertain. Lung ultrasound has been recently shown as a non-invasive, repeatable, bedside tool to estimate parenchymal aeration using a semiquantitative score (LUS). The objective of this systematic review and meta-analysis is to evaluate the accuracy of LUS, assessed on the first day of life, to predict surfactant replacement. Methods will follow the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols (PRISMA-P) guidelines and the protocol has been registered in PROSPERO database (registration number: CRD42021247888). Primary outcome: in a population of preterm infants, LUS will be compared in neonates who received surfactant replacement versus those who did not. Secondary outcome will be the accuracy of lung ultrasound score to predict the need for ≥ 2 doses of surfactant.


Author(s):  
Daniele De Luca ◽  
Nadya Yousef

Objective Semiquantitative lung ultrasound improves the timeliness of surfactant replacement, but its financial consequences are unknown. We aim to investigate if the ultrasound-guided surfactant administration influences the general costs of surfactant therapy for preterm neonates affected by respiratory distress syndrome. Study Design This is a pharmacoeconomic, retrospective, and before-and-after study investigating the impact of ultrasound-guided surfactant replacement (echography-guided Surfactant THERapy [ESTHER]) on pharmaceutical expenditure within the ESTHER initiative. Data extracted from the institutional official database hosted by the hospital administration for financial management were used for the analysis. We analyzed the number of surfactant administrations in neonates of gestational age ≤326/7 weeks, and the number of surfactant vials used from January 1, 2014 to June 30, 2014 (i.e., during the period of standard surfactant administration policy) and from July 1, 2016 to December 31, 2018 (that is during ESTHER policy). Results ESTHER did not modify surfactant use, as proportion of treated neonates with RDS receiving at least one surfactant dose (Standard: 21.3% vs. ESTHER: 20.9%; p = 0.876) or as proportion of used vials over the total number of vials opened for neonates of any gestational age (Standard: 37% vs. ESTHER: 35%; p = 0.509). Conclusion Ultrasound-guided surfactant replacement using a semiquantitative lung ultrasound score in preterm infants with RDS does not change the global use of surfactant and the related expenditure. Key Points


2020 ◽  
Author(s):  
Piotr Szymański ◽  
Piotr Kruczek ◽  
Roman Hożejowski ◽  
Piotr Wais

Abstract PurposeWe propose a modified lung ultrasound score (LUS) 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 LUS was evaluated for validity, interrater agreement and prognostic power in relation to the need for respiratory support on day of life (DOL) 3. The hypothesis of the dominant weight of posterior scans in the LUS was also verified.Materials and methodsA total of 647 serial lung scans were performed in 70 preterm infants <32 weeks gestation and birth weight <1500 g. Assessments were performed within 24 hours of birth (LUS0) and on days 2, 3, 5, 7, 10, 14, 21 and 28. LUS was correlated to oxygen saturation over fraction of inspired oxygen (SpO2/FiO2) and mode of respiratory support. Probabilities of the need for respiratory support on DOL 3 were assessed with ordinal logistic regression.ResultsThe LUS correlated significantly with SpO2/FiO2 (Spearman rho = -0.635; p<0.0001) and had excellent interrater agreement (Cronbach’s alpha = 0.99). Posterior fields had dominant weight over the anterior fields (ls mean [confidence level]) 4.0 [3.8–4.1] vs 2.2 [2.0–2.4]; p<0.0001. Significant predictors of ventilation requirements on DOL 3 were LUS0 (p<0.016) and birth weight (BW) (p<0.0001); invasive ventilation was the most likely option with LUS0 ≥7 (BW 900 g), ≥10 (BW 1050 g) and ≥15 (BW 1280 g).ConclusionPostbirth LUS predicts the need for mechanical ventilation on DOL 3. Posterior fields play a dominant role in sonographic assessment of lungs in neonatal RDS.


PEDIATRICS ◽  
2018 ◽  
Vol 142 (3) ◽  
pp. e20180463 ◽  
Author(s):  
Lucia De Martino ◽  
Nadya Yousef ◽  
Rafik Ben-Ammar ◽  
Francesco Raimondi ◽  
Shivani Shankar-Aguilera ◽  
...  

Author(s):  
Barbara Loi ◽  
Costanza Casiraghi ◽  
Chiara Catozzi ◽  
Matteo Storti ◽  
Monica Lucattelli ◽  
...  

Evolving broncho-pulmonary dysplasia (BPD) is a regionally heterogeneous disorder characterized by impaired alveolarization leading to lung aeration inhomogeneities. Hyperoxia-exposed preterm rabbits have been proposed to mimic evolving BPD and we aim to verify if this model has the same lung ultrasound and mechanical features of evolving BPD in human neonates. Twenty-five preterm rabbits and twenty-five neonates with evolving BPD were enrolled and subjected to semi-quantitative lung ultrasound and lung mechanics measurement. A modified rabbit lung ultrasound score (rLUS), the previously validated neonatal lung ultrasound score (LUS) and classical mechanics measurements were obtained. Lung ultrasound images were also recorded and evaluated by two independent observers with different expertise blinded to each other's evaluation. Lung ultrasound findings were equally heterogeneous both in rabbits as in human neonates: images were very similar and encompassed all the classical lung ultrasound semiology. The inter-rater absolute agreement for the evaluation of lung ultrasound images in rabbits was very high (ICC: 0.989 (95%CI: 0.975-0.995); p<0.0001) and there was no difference between the two observers. Lung mechanics parameters were similarly altered both in rabbits and human neonates. There were significant correlations between airway resistances and lung ultrasound scores both in rabbits (r=0.519; p=0.008) and in neonates (r=0.409; p=0.042). No significant correlation between rLUS, LUS and any other mechanics parameter. Lung ultrasound was easy to be performed and accurate even in these small animals and with a short training. In conclusion, the preterm rabbit model fairly reproduces the lung ultrasound and mechanical characteristics of preterm neonates with evolving BPD.


2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Micah L. A. Heldeweg ◽  
Jorge E. Lopez Matta ◽  
Mark E. Haaksma ◽  
Jasper M. Smit ◽  
Carlos V. Elzo Kraemer ◽  
...  

Abstract Background Lung ultrasound can adequately monitor disease severity in pneumonia and acute respiratory distress syndrome. We hypothesize lung ultrasound can adequately monitor COVID-19 pneumonia in critically ill patients. Methods Adult patients with COVID-19 pneumonia admitted to the intensive care unit of two academic hospitals who underwent a 12-zone lung ultrasound and a chest CT examination were included. Baseline characteristics, and outcomes including composite endpoint death or ICU stay > 30 days were recorded. Lung ultrasound and CT images were quantified as a lung ultrasound score involvement index (LUSI) and CT severity involvement index (CTSI). Primary outcome was the correlation, agreement, and concordance between LUSI and CTSI. Secondary outcome was the association of LUSI and CTSI with the composite endpoints. Results We included 55 ultrasound examinations in 34 patients, which were 88% were male, with a mean age of 63 years and mean P/F ratio of 151. The correlation between LUSI and CTSI was strong (r = 0.795), with an overall 15% bias, and limits of agreement ranging − 40 to 9.7. Concordance between changes in sequentially measured LUSI and CTSI was 81%. In the univariate model, high involvement on LUSI and CTSI were associated with a composite endpoint. In the multivariate model, LUSI was the only remaining independent predictor. Conclusions Lung ultrasound can be used as an alternative for chest CT in monitoring COVID-19 pneumonia in critically ill patients as it can quantify pulmonary involvement, register changes over the course of the disease, and predict death or ICU stay > 30 days. Trial registration: NTR, NL8584. Registered 01 May 2020—retrospectively registered, https://www.trialregister.nl/trial/8584


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Stephanie-Susanne Stecher ◽  
Sofia Anton ◽  
Alessia Fraccaroli ◽  
Jeremias Götschke ◽  
Hans Joachim Stemmler ◽  
...  

Abstract Background Point-of-care lung ultrasound (LU) is an established tool in the first assessment of patients with coronavirus disease (COVID-19). Purpose of this study was to evaluate the value of lung ultrasound in COVID-19 intensive care unit (ICU) patients in predicting clinical course and outcome. Methods We analyzed lung ultrasound score (LUS) of all COVID-19 patients admitted from March 2020 to December 2020 to the Internal Intensive Care Unit, Ludwig-Maximilians-University (LMU) of Munich. LU was performed according to a standardized protocol at ICU admission and in case of clinical deterioration with the need for intubation. A normal lung scores 0 points, the worst LUS has 24 points. Patients were stratified in a low (0–12 points) and a high (13–24 points) lung ultrasound score group. Results The study included 42 patients, 69% of them male. The most common comorbidities were hypertension (81%) and obesity (57%). The values of pH (7.42 ± 0.09 vs 7.35 ± 0.1; p = 0.047) and paO2 (107 [80–130] vs 80 [66–93] mmHg; p = 0.034) were significantly reduced in patients of the high LUS group. Furthermore, the duration of ventilation (12.5 [8.3–25] vs 36.5 [9.8–70] days; p = 0.029) was significantly prolonged in this group. Patchy subpleural thickening (n = 38; 90.5%) and subpleural consolidations (n = 23; 54.8%) were present in most patients. Pleural effusion was rare (n = 4; 9.5%). The median total LUS was 11.9 ± 3.9 points. In case of clinical deterioration with the need for intubation, LUS worsened significantly compared to baseline LU. Twelve patients died during the ICU stay (29%). There was no difference in survival in both LUS groups (75% vs 66.7%, p = 0.559). Conclusions LU can be a useful monitoring tool to predict clinical course but not outcome of COVID-19 ICU patients and can early recognize possible deteriorations.


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