• Respiratory care · May 2023

    Pediatric Ventilator Liberation: One-Hour Versus Two-Hour Spontaneous Breathing Trials in a Single Center.

    • Jeremy M Loberger, Caleb R Watson, Emily M Clingan, Sarah D Petrusnek, Inmaculada B Aban, and Priya Prabhakaran.
    • Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, Alabama. jloberger@uabmc.edu.
    • Respir Care. 2023 May 1; 68 (5): 649657649-657.

    BackgroundThe optimal spontaneous breathing trial (SBT) duration is not known for children who are critically ill. The study objective was to evaluate extubation outcomes between cohorts exposed to a 1- or 2-h SBT.MethodsThis was a retrospective cohort study of a quality improvement project database in a 24-bed pediatric ICU. The intervention was a respiratory therapist-driven SBT clinical pathway across 2 improvement cycles by using a 2- or 1-h SBT. The primary outcomes were extubation failure and rescue noninvasive ventilation in the first 48 h. Secondary outcomes included SBT results and process measures.ResultsThere were 218 and 305 encounters in the 2- and 1-h cohorts, respectively. Extubation failure (7.3 vs 8.5%; P = .62) and rescue noninvasive ventilation rates (9.3 vs 8.2%; P = .68) were similar. In logistic regression models, SBT duration was not independently associated with either primary outcome. Extubation after 1-h SBT failure was associated with significantly higher odds of rescue noninvasive ventilation exposure (odds ratio 3.94, 95% CI 1.3-11.9; P = .02). SBT results were not associated with odds of extubation failure. There were 1,072 (2 h) and 1,333 (1 h) SBTs performed. The 1-h SBT pass rate was significantly higher versus the 2-h SBT (71.4 vs 51.1%; P < .001). Among all failed SBTs, the top 3 reported failure modes were tidal volume ≤ 5 mL/kg (23.6%), breathing frequency increase > 30% (21%), and oxygen saturation < 92% (17.3%). When considering all failed SBTs, 75.5% of failures occurred before 45 min.ConclusionsA 1-h SBT may be a viable alternative to a 2-h version for the average child who is critically ill. Further, a 1-h SBT may better balance extubation outcomes and duration of invasive ventilation for the general pediatric ICU population.Copyright © 2023 by Daedalus Enterprises.

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