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NARDS, neonatalacute respiratory distress syndrome

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1	Clinical characteristics and outcomes in neonates with perinatal acute respiratory distress syndrome in China: A national, multicentre, cross-sectional study. EClinicalMedicine 2023;55:101739. [PMID: 36386029 PMCID: PMC9661498 DOI: 10.1016/j.eclinm.2022.101739] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/19/2022] [Accepted: 10/21/2022] [Indexed: 11/13/2022] Open Abstract BACKGROUND Neonatal acute respiratory distress syndrome (NARDS) was defined in 2017 and the epidemiological data remain unknown. Our objective was to explore aetiological factors, clinical characteristics and outcomes in patients with perinatal NARDS. METHODS A multicentre, prospective, cross-sectional study was performed in 58 tertiary neonatal intensive care units in China from Jan 1, 2018 to June 30, 2019. Neonates diagnosed with NARDS were included. Primary outcomes were aetiological factors, clinical characteristics and outcomes. Binary logistic regression and multivariate cox proportional regression were performed to identify independent predictors for bronchopulmonary dysplasia (BPD) and/or death or single death. This study was registered with ClinicalTrials.Gov, NCT03311165. FINDINGS Among 70,013 admitted neonates, the incidence of NARDS was 1.44% (1005). The cumulative incidences were 65.6%, 86.7%, 94.1% within one, two and three days after birth. The median gestational age and birth weight were 36.4 weeks and 2700 g. Three main aetiological triggers included pneumonia (58.1%), asphyxia (24.3%) and early-onset sepsis (EOS) (21.3%). BPD and/or death was observed in 213 (21.2%) infants, consisting 104 (10.3%) BPD and 126 (12.6%) deaths. The numbers of mild, moderate and severe NARDS were 537 (53.4%), 286 (28.4%) and 182 (18.2%). Two or more doses of surfactant was associated with increased mortality as compared with one or less doses of surfactant (odds ratio [OR] 1.93, 95% confidence interval [CI] 1.20-3.10, P = 0.006). Similarity also appeared in the comparison between EOS and non-EOS triggers (OR 1.57, 95% CI 1.06-2.33, P = 0.023). INTERPRETATION NARDS incidence was 1.44% and the three main aetiologies were pneumonia, asphyxia and EOS. The cumulative incidences were 65.6%, 86.7%, and 94.1% within one, two and three days after birth. Our results suggested that two or more doses of surfactant increased mortality compared with one or less doses of surfactant. FUNDING The National Clinical Research Center of China and Clinical Medical Study Program of Children's Hospital of Chongqing Medical University (NCRC-2019-GP-13) and Natural Science Foundation of Chongqing (cstc2020jcyj-msxmX0197). Collapse Key Words ARDS, acute respiratory distress syndrome Acute respiratory distress syndrome BIPAP, bi-level positive airway pressure BPD, bronchopulmonary dysplasia Bronchopulmonary dysplasia CI, confidence interval CMV, conventional mechanical ventiation Epidemiology GA, gestational age GDM, gestational diabetes mellitus HDCP, hypertensive disorder complicating pregnancy HFOV, high-frequency oscillatory ventilation ICP, intrahepatic cholestasis of pregnancy IQR, interquartile range IV, invasive ventilation IVF, in vitro fertilization MAS, meconium aspiration syndrome Mortality NARDS, neonatalacute respiratory distress syndrome NCPAP, nasal continuous positive airway pressure NHFOV, nasal high-frequency oscillatory ventilation NIPPV, nasal intermittent positive pressure ventilation NIV, noninvasive ventilation NIV-I, intubation after NIV failure Neonate OR, odds ratio PH, pulmonary hemorrhage PPHN, persistent pulmonary hypertension of newborn PROM, premature rupture of the membrane iNO, inhaled nitric oxide Collapse MESH Headings Collapse Grants Collapse

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Clinical characteristics and outcomes in neonates with perinatal acute respiratory distress syndrome in China: A national, multicentre, cross-sectional study. EClinicalMedicine 2023;55:101739. [PMID: 36386029 PMCID: PMC9661498 DOI: 10.1016/j.eclinm.2022.101739] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/19/2022] [Accepted: 10/21/2022] [Indexed: 11/13/2022] Open

Abstract

BACKGROUND

Neonatal acute respiratory distress syndrome (NARDS) was defined in 2017 and the epidemiological data remain unknown. Our objective was to explore aetiological factors, clinical characteristics and outcomes in patients with perinatal NARDS.

METHODS

A multicentre, prospective, cross-sectional study was performed in 58 tertiary neonatal intensive care units in China from Jan 1, 2018 to June 30, 2019. Neonates diagnosed with NARDS were included. Primary outcomes were aetiological factors, clinical characteristics and outcomes. Binary logistic regression and multivariate cox proportional regression were performed to identify independent predictors for bronchopulmonary dysplasia (BPD) and/or death or single death. This study was registered with ClinicalTrials.Gov, NCT03311165.

FINDINGS

Among 70,013 admitted neonates, the incidence of NARDS was 1.44% (1005). The cumulative incidences were 65.6%, 86.7%, 94.1% within one, two and three days after birth. The median gestational age and birth weight were 36.4 weeks and 2700 g. Three main aetiological triggers included pneumonia (58.1%), asphyxia (24.3%) and early-onset sepsis (EOS) (21.3%). BPD and/or death was observed in 213 (21.2%) infants, consisting 104 (10.3%) BPD and 126 (12.6%) deaths. The numbers of mild, moderate and severe NARDS were 537 (53.4%), 286 (28.4%) and 182 (18.2%). Two or more doses of surfactant was associated with increased mortality as compared with one or less doses of surfactant (odds ratio [OR] 1.93, 95% confidence interval [CI] 1.20-3.10, P = 0.006). Similarity also appeared in the comparison between EOS and non-EOS triggers (OR 1.57, 95% CI 1.06-2.33, P = 0.023).

INTERPRETATION

NARDS incidence was 1.44% and the three main aetiologies were pneumonia, asphyxia and EOS. The cumulative incidences were 65.6%, 86.7%, and 94.1% within one, two and three days after birth. Our results suggested that two or more doses of surfactant increased mortality compared with one or less doses of surfactant.

FUNDING

The National Clinical Research Center of China and Clinical Medical Study Program of Children's Hospital of Chongqing Medical University (NCRC-2019-GP-13) and Natural Science Foundation of Chongqing (cstc2020jcyj-msxmX0197).

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