Abstract
The frequency of non-invasive respiratory support use has increased in neonates of all gestational ages with respiratory distress (RD). However, the impact of delayed initiation of non-invasive respiratory support in outborn neonates remains poorly understood. This study aimed to identify the impact of the delayed initiation of non-invasive respiratory support in outborn, late-preterm, and term neonates. Medical records of 277 infants (gestational age of ≥ 35 weeks) who received non-invasive respiratory support as primary respiratory therapy < 24 h of age between 2016 and 2020 were retrospectively reviewed. Factors associated with respiratory adverse outcomes were investigated in 190 outborn neonates. Infants with RD were divided into two groups: mild (fraction of inspired oxygen [FiO2] ≤ 0.3) and moderate-to-severe RD (FiO2 > 0.3), depending on their initial oxygen requirements from non-invasive respiratory support. The median time for the initiation of non-invasive respiratory support at a tertiary center was 3.5 (2.2–5.0) h. Male sex, a high oxygen requirement (FiO2 > 0.3), high CO2 level, and respiratory distress syndrome were significant factors associated with adverse outcomes. Subgroup analysis revealed that in the moderate-to-severe RD group, delayed commencement of non-invasive respiratory support (≥ 3 h) was significantly associated with pulmonary air leakage (p = 0.033).
Conclusion: Our study shows that outborn neonates with moderate-to-severe RD, who were treated with delayed non-invasive respiratory support, were associated with an increased likelihood of pulmonary air leakage. Additional prospective studies are required to establish the optimal timing and methods of non-invasive respiratory support for outborn, late-preterm, and term infants.
What is Known: • Non-invasive respiratory support is widely used in neonates of all gestational ages. • Little is known on the impact of delayed initiation of non-invasive respiratory support in outborn, late preterm, and term neonates. | |
What is New: • Male sex, high oxygen requirement (FiO2 >0.3), high initial CO2 level, and respiratory distress syndrome significantly correlated with adverse outcomes. • Outborn late-preterm and term neonates with high oxygen requirement who were treated with delayed non-invasive respiratory support indicated an increased likelihood of pulmonary air leakage. |
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Availability of data and material
The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.
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Abbreviations
- BiPAP:
-
Biphasic positive airway pressure
- CPAP:
-
Continuous positive airway pressure
- DR:
-
Delivery room
- FiO2 :
-
Fraction of inspired oxygen
- HHFNC:
-
Humidified high flow nasal cannula
- NICU:
-
Neonatal intensive care unit
- NIPPV:
-
Nasal intermittent positive pressure ventilation
- NPPV:
-
Non-invasive positive pressure ventilation
- NRP:
-
Neonatal resuscitation program
- OR:
-
Odds ratio
- PEEP:
-
Positive end-expiratory pressure
- RD:
-
Respiratory distress
- RDS:
-
Respiratory distress syndrome
- SD:
-
Standard deviation
- S/F:
-
Peripheral saturation/FiO2 ratio
- sNIPPV:
-
Synchronized nasal intermittent positive pressure ventilation
- Ti:
-
Inspiratory time
- TTN:
-
Transient tachypnea of the newborn
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Eui Kyung Choi: Primary author, Data collection, Data analysis, Manuscript writing. Kyu Hee Park: Data collection. Byung Min Choi: Drafting of the manuscript, Editing, Critical revision of the manuscript, Responsible for the overall content. All authors provided contributions, read, and approved the final version.
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This study was approved by the Institutional Research Ethics Committee of the Korea University Ansan Hospital (2021AS0193).
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Choi, E.K., Park, K.H. & Choi, B.M. Association of delayed initiation of non-invasive respiratory support with pulmonary air leakage in outborn late-preterm and term neonates. Eur J Pediatr 181, 1651–1660 (2022). https://doi.org/10.1007/s00431-021-04317-3
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DOI: https://doi.org/10.1007/s00431-021-04317-3