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Am J Perinatol
DOI: 10.1055/a-2339-4412
Original Article

Respiratory Severity Score and Oxygen Saturation Index during the First 2 Hours of Life as Predictors for Noninvasive Respiratory Support Failure in Respiratory Distress Syndrome

Henry A. Zapata
1   Division of Neonatology, Department of Pediatrics, University of Florida-Jacksonville, Jacksonville, Florida
,
Jack Koueik
2   Department of Pediatrics, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin
,
Heather L. Becker
3   Department of Respiratory Therapy, UnityPoint Health Meriter Hospital, Madison, Wisconsin
,
Michael R. Lasarev
4   Department of Biostatistics and Medical Informatics, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin
,
Scott O. Guthrie
5   Division of Neonatology, Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, Tennessee
6   Division of Neonatology, Department of Pediatrics, Jackson-Madison County General Hospital, Jackson, Tennessee
,
Dinushan C. Kaluarachchi 
2   Department of Pediatrics, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin
› Author Affiliations Funding None.
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Abstract

Objective Noninvasive respiratory support (NRS) failure is common in preterm infants with respiratory distress syndrome (RDS). We evaluated the utility of respiratory severity score (RSS) and oxygen saturation index (OSI) during the first 2 hours of life (HOL) as predictors for NRS failure in moderate preterm infants.

Study Design We conducted a retrospective cohort study of infants born between 280/7 and 336/7 weeks with RDS. Univariate and multivariable logistic regression analyses were used to assess whether the RSS and OSI summary measures were associated with NRS failure.

Results A total of 282 infants were included in the study. Median gestational age and birth weights were 32 weeks and 1.7 kg, respectively. Fifty-eight infants (21%) developed NRS failure at the median age of 10.5 hours. RSS and OSI summary measures in the first 2 HOL were associated with NRS failure within 72 HOL.

Conclusion RSS and OSI during the first 2 HOL can predict NRS failure. Optimal RSS and OSI cutoffs for the prediction of NRS failure need to be determined in large cohort studies.

Key Points

  • Nearly one in five moderate preterm infants on NRS at 2 hours of life developed NRS failure.

  • RSS and OSI during the first 2 HOL can predict NRS failure.

  • Optimal RSS and OSI cutoffs for the prediction of NRS failure need to be determined.

Keywords

respiratory distress syndrome - surfactant - noninvasive respiratory support failure - CPAP - respiratory severity score - oxygen saturation index

Authors' Contributions

H.A.Z.: H.A.Z. involved in designing of the study, drafted the project proposal, reviewed, and approved final manuscript as submitted.


J.K.: J.K. involved in designing of the study, reviewed, and approved final manuscript as submitted.


M.R.L.: M.R.L. involved in designing the study, did the data analysis, reviewed, and approved final manuscript as submitted.


H.B.: H.B. involved in designing of the study, reviewed, and approved final manuscript as submitted.


S.O.G.: S.O.G. involved in designing of the study, reviewed, and approved final manuscript as submitted.


D.K.: D.K. designed the study, drafted the project proposal, obtained data, drafted, and approved final manuscript as submitted.


All authors approved the final manuscript as submitted and agreed to be accountable for all aspects of the work.


Supplementary Material



Publication History

Received: 28 February 2024

Accepted: 05 June 2024

Accepted Manuscript online:
06 June 2024

Article published online:
24 June 2024

© 2024. Thieme. All rights reserved.

Thieme Medical Publishers, Inc.
333 Seventh Avenue, 18th Floor, New York, NY 10001, USA

 

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