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. 2023 Aug;32(15-16):4719-4729.
doi: 10.1111/jocn.16525. Epub 2022 Sep 26.

The impact of an autonomous nurse-led high-flow nasal cannula oxygen protocol on clinical outcomes of infants with bronchiolitis

Michelle Elks  1 , Jeanine Young  2 , Lauren Kearney  3 , Anne Bernard  4
Affiliations

The impact of an autonomous nurse-led high-flow nasal cannula oxygen protocol on clinical outcomes of infants with bronchiolitis

Michelle Elks et al. J Clin Nurs. 2023 Aug.

Abstract

Objective: To investigate the relationship of the implementation of a nurse-led high-flow nasal cannula oxygen protocol on the clinical outcomes of infants with bronchiolitis in a regional paediatric unit.

Background: Bronchiolitis is a common lower respiratory illness and is the leading cause for hospitalisation of infants globally. Standard care involves the provision of supportive measures. Historically, supplemental oxygen was provided by low-flow nasal cannula. High-flow nasal cannula oxygen has been increasingly adopted despite limited evidence of its efficacy.

Methods: This study employed non-equivalent, post-implementation only design to explore clinical outcomes of infants with bronchiolitis admitted for high-flow nasal cannula oxygen therapy. The study compared infants in the 24 months before and after the initiation of a high-flow nasal cannula protocol. The primary clinical outcome was length of stay, secondary outcomes included time on high flow, weaning time, escalation of care and time outside of physiological parameters. Implementation strategy evaluation was measured by compliance with applying the protocol, reported as episodes of variance, and duration of variance. The StaRI checklist was selected as the most appropriate reporting guideline.

Results: A total of 80 patients were admitted with bronchiolitis and received high-flow nasal cannula oxygen therapy during a 48-month period; 37 patients were prior, and 43 after, the introduction of a nurse-led high-flow nasal cannula protocol. Length of stay was significantly reduced in the post-implementation group compared to the historical control group (83.8 vs. 61.3 h). Time on high flow and weaning time was decreased in the post-implementation group compared to the control group (33.5 vs. 26.7 h and 26 vs.12.25 h, respectively); however, these did not reach statistical significance. There was varied application of the HFNC protocol.

Conclusions: The implementation of a nurse-led high-flow nasal cannula protocol was associated with a reduced length of stay.

Relevance to clinical practice: This study demonstrated that infants with bronchiolitis that were treated with a nurse-led high-flow nasal cannula (HFNC) therapy protocol had positive effects on clinical outcomes including a shorter length of stay than compared with those with physician-directed care in a regional paediatric unit. A weight-based (2 L/kg) HFNC therapy was safely administered to infants with bronchiolitis in a regional hospital paediatric ward with no paediatric intensive care unit (PICU).

Keywords: bronchiolitis; high-flow nasal cannula therapy; infants; oxygen therapy; protocol implementation.

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