The 30-min diaphragm movement change rate for predicting weaning success in severe pneumonia patients requiring invasive ventilation

PurposeThis study evaluated the 30-min diaphragm excursion change rate (ΔDE30–0) as a novel predictor of weaning success compared to existing parameters in patients with severe pneumonia requiring invasive mechanical ventilation.MethodsThis retrospective cohort study enrolled patients with severe pn...

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Main Authors: Wentao Luo, Huagen Zhang, Yuchong Chen, Wenfeng Luo, Xiuwen Lin
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-05-01
Series:Frontiers in Medicine
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Online Access:https://www.frontiersin.org/articles/10.3389/fmed.2025.1595814/full
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author Wentao Luo
Huagen Zhang
Yuchong Chen
Wenfeng Luo
Xiuwen Lin
author_facet Wentao Luo
Huagen Zhang
Yuchong Chen
Wenfeng Luo
Xiuwen Lin
author_sort Wentao Luo
collection DOAJ
description PurposeThis study evaluated the 30-min diaphragm excursion change rate (ΔDE30–0) as a novel predictor of weaning success compared to existing parameters in patients with severe pneumonia requiring invasive mechanical ventilation.MethodsThis retrospective cohort study enrolled patients with severe pneumonia requiring invasive mechanical ventilation (n = 100). The patients were divided into successful (n = 79) and failed (n = 21) extubation groups. Ultrasound measurements of diaphragm excursion (DE) were performed at baseline (DE0) and 30 min (DE30) during a spontaneous breathing trial. The ratio ΔDE30–0 was calculated as the absolute difference between DE30 and DE0 divided by DE0. Additional parameters including rapid shallow breathing index (Rapid Shallow Breathing Index, RSBI) and respiratory rate (RR) were also assessed. The predictive performance of ΔDE30–0 and other parameters was evaluated using receiver operating characteristic (ROC) curves.ResultsThe extubation failure group had significantly higher ΔDE30–0 (0.40 ± 0.20 vs. 0.14 ± 0.12, p < 0.0001), RSBI (59.62 ± 21.77 vs. 47.7 ± 13.6, p = 0.0025), and RR (23.62 ± 2.25 vs. 20.34 ± 2.18, p < 0.0001) compared to the success group. ΔDE30–0 demonstrated the highest predictive performance with an area under the ROC curve of 0.924, sensitivity of 86.1%, and specificity of 95.2% at a cut-off value of 0.209.ConclusionsΔDE30–0 is a promising predictor of weaning success in severe pneumonia patients requiring invasive mechanical ventilation. It outperformed existing parameters and demonstrated high predictive accuracy.Implications for clinical practiceIncorporating ΔDE30–0 into weaning protocols may improve decision-making, reduce complications, and optimize outcomes for patients requiring invasive mechanical ventilation due to severe pneumonia. This novel parameter can aid clinicians in identifying suitable candidates for extubation, potentially reducing the risk of weaning failure and associated adverse events.
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spelling doaj-art-7a3d9642623c4b3a9a5f9de3f2d196252025-08-20T01:49:12ZengFrontiers Media S.A.Frontiers in Medicine2296-858X2025-05-011210.3389/fmed.2025.15958141595814The 30-min diaphragm movement change rate for predicting weaning success in severe pneumonia patients requiring invasive ventilationWentao Luo0Huagen Zhang1Yuchong Chen2Wenfeng Luo3Xiuwen Lin4Department of Critical Care Medicine III, Meizhou People’s Hospital, Meizhou, Guangdong, ChinaDepartment of Critical Care Medicine III, Meizhou People’s Hospital, Meizhou, Guangdong, ChinaDepartment of Critical Care Medicine I, Meizhou People’s Hospital, Meizhou, Guangdong, ChinaDepartment of Respiratory and Critical Care Medicine, Meizhou People’s Hospital, Meizhou, Guangdong, ChinaDepartment of Critical Care Medicine III, Meizhou People’s Hospital, Meizhou, Guangdong, ChinaPurposeThis study evaluated the 30-min diaphragm excursion change rate (ΔDE30–0) as a novel predictor of weaning success compared to existing parameters in patients with severe pneumonia requiring invasive mechanical ventilation.MethodsThis retrospective cohort study enrolled patients with severe pneumonia requiring invasive mechanical ventilation (n = 100). The patients were divided into successful (n = 79) and failed (n = 21) extubation groups. Ultrasound measurements of diaphragm excursion (DE) were performed at baseline (DE0) and 30 min (DE30) during a spontaneous breathing trial. The ratio ΔDE30–0 was calculated as the absolute difference between DE30 and DE0 divided by DE0. Additional parameters including rapid shallow breathing index (Rapid Shallow Breathing Index, RSBI) and respiratory rate (RR) were also assessed. The predictive performance of ΔDE30–0 and other parameters was evaluated using receiver operating characteristic (ROC) curves.ResultsThe extubation failure group had significantly higher ΔDE30–0 (0.40 ± 0.20 vs. 0.14 ± 0.12, p < 0.0001), RSBI (59.62 ± 21.77 vs. 47.7 ± 13.6, p = 0.0025), and RR (23.62 ± 2.25 vs. 20.34 ± 2.18, p < 0.0001) compared to the success group. ΔDE30–0 demonstrated the highest predictive performance with an area under the ROC curve of 0.924, sensitivity of 86.1%, and specificity of 95.2% at a cut-off value of 0.209.ConclusionsΔDE30–0 is a promising predictor of weaning success in severe pneumonia patients requiring invasive mechanical ventilation. It outperformed existing parameters and demonstrated high predictive accuracy.Implications for clinical practiceIncorporating ΔDE30–0 into weaning protocols may improve decision-making, reduce complications, and optimize outcomes for patients requiring invasive mechanical ventilation due to severe pneumonia. This novel parameter can aid clinicians in identifying suitable candidates for extubation, potentially reducing the risk of weaning failure and associated adverse events.https://www.frontiersin.org/articles/10.3389/fmed.2025.1595814/fullsevere pneumoniainvasive ventilationweaningdiaphragm ultrasoundpredictive index
spellingShingle Wentao Luo
Huagen Zhang
Yuchong Chen
Wenfeng Luo
Xiuwen Lin
The 30-min diaphragm movement change rate for predicting weaning success in severe pneumonia patients requiring invasive ventilation
Frontiers in Medicine
severe pneumonia
invasive ventilation
weaning
diaphragm ultrasound
predictive index
title The 30-min diaphragm movement change rate for predicting weaning success in severe pneumonia patients requiring invasive ventilation
title_full The 30-min diaphragm movement change rate for predicting weaning success in severe pneumonia patients requiring invasive ventilation
title_fullStr The 30-min diaphragm movement change rate for predicting weaning success in severe pneumonia patients requiring invasive ventilation
title_full_unstemmed The 30-min diaphragm movement change rate for predicting weaning success in severe pneumonia patients requiring invasive ventilation
title_short The 30-min diaphragm movement change rate for predicting weaning success in severe pneumonia patients requiring invasive ventilation
title_sort 30 min diaphragm movement change rate for predicting weaning success in severe pneumonia patients requiring invasive ventilation
topic severe pneumonia
invasive ventilation
weaning
diaphragm ultrasound
predictive index
url https://www.frontiersin.org/articles/10.3389/fmed.2025.1595814/full
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