Mechanical power density, spontaneous breathing indexes, and prolonged weaning failure: a prospective cohort study
Abstract - A prospective observational study comparing mechanical power density (MP normalized to dynamic compliance) with traditional spontaneous breathing indexes (e.g., predicted body weight normalized tidal volume [VT/PBW], rapid shallow breathing index [RSBI], or the integrative weaning index [...
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| Hauptverfasser: | , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
15 July 2024
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| In: |
Scientific reports
Year: 2024, Jahrgang: 14, Pages: 1-11 |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-024-67237-w |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1038/s41598-024-67237-w Verlag, kostenfrei, Volltext: https://www.nature.com/articles/s41598-024-67237-w 
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| Verfasserangaben: | Alessandro Ghiani, Swenja Walcher, Azal Lutfi, Joanna Paderewska, Simon Ulrich Jaeger, Nikolaus Kneidinger, Stephanie Susanne Stecher, Franziska Christina Trudzinski & Claus Neurohr |
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| 245 | 1 | 0 | |a Mechanical power density, spontaneous breathing indexes, and prolonged weaning failure |b a prospective cohort study |c Alessandro Ghiani, Swenja Walcher, Azal Lutfi, Joanna Paderewska, Simon Ulrich Jaeger, Nikolaus Kneidinger, Stephanie Susanne Stecher, Franziska Christina Trudzinski & Claus Neurohr |
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| 520 | |a Abstract - A prospective observational study comparing mechanical power density (MP normalized to dynamic compliance) with traditional spontaneous breathing indexes (e.g., predicted body weight normalized tidal volume [VT/PBW], rapid shallow breathing index [RSBI], or the integrative weaning index [IWI]) for predicting prolonged weaning failure in 140 tracheotomized patients. We assessed the diagnostic accuracy of these indexes at the start and end of the weaning procedure using ROC curve analysis, expressed as the area under the receiver operating characteristic curve (AUROC). Weaning failure occurred in 41 out of 140 patients (29%), demonstrating significantly higher MP density (6156 cmH 2 O 2 /min [4402–7910] vs. 3004 cmH 2 O 2 /min [2153–3917], P < 0.01), lower spontaneous VT/PBW (5.8 mL*kg −1 [4.8–6.8] vs. 6.6 mL*kg −1 [5.7–7.9], P < 0.01) higher RSBI (68 min −1 *L −1 [44–91] vs. 55 min −1 *L −1 [41–76], P < 0.01) and lower IWI (41 L 2 /cmH 2 O*%*min*10 −3 [25–72] vs. 71 L 2 /cmH 2 O*%*min*10 -3 [50–106], P < 0.01) and at the end of weaning. MP density was more accurate at predicting weaning failures (AUROC 0.91 [95%CI 0.84–0.95]) than VT/PBW (0.67 [0.58–0.74]), RSBI (0.62 [0.53–0.70]), or IWI (0.73 [0.65–0.80]), and may help clinicians in identifying patients at high risk for long-term ventilator dependency. | ||
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