Mechanical power normalized to predicted body weight is associated with mortality in critically ill patients: a cohort study

Abstract Background Mechanical power (MP), defined as the amount of energy produced by mechanical ventilation and released into the respiratory system, was reportedly a determining factor in the pathogenesis of ventilator-induced lung injury. However, previous studies suggest that the effects of MP...

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Autores principales:	Yanhong Zhu, Wenyong Peng, Shuai Zhen, Xiaofeng Jiang
Formato:	article
Lenguaje:	EN
Publicado:	BMC 2021
Materias:	Critically ill Mortality Mechanical ventilation Ventilator-induced lung injury Mechanical power normalized to predicted body weight Anesthesiology RD78.3-87.3
Acceso en línea:	https://doaj.org/article/75dee4d9449c4b84878fc1415d09b3e5
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spelling	oai:doaj.org-article:75dee4d9449c4b84878fc1415d09b3e52021-11-14T12:11:40ZMechanical power normalized to predicted body weight is associated with mortality in critically ill patients: a cohort study10.1186/s12871-021-01497-11471-2253https://doaj.org/article/75dee4d9449c4b84878fc1415d09b3e52021-11-01T00:00:00Zhttps://doi.org/10.1186/s12871-021-01497-1https://doaj.org/toc/1471-2253Abstract Background Mechanical power (MP), defined as the amount of energy produced by mechanical ventilation and released into the respiratory system, was reportedly a determining factor in the pathogenesis of ventilator-induced lung injury. However, previous studies suggest that the effects of MP were proportional to their involvement in the total lung function size. Therefore, MP normalized to the predicted body weight (norMP) should outperform the absolute MP value. The objective of this research is to determine the connection between norMP and mortality in critically ill patients who have been on invasive ventilation for at least 48 h. Methods This is a study of data stored in the databases of the MIMIC–III, which contains data of critically ill patients for over 50,000. The study involved critically ill patients who had been on invasive ventilation for at least 48 h. norMP was the relevant exposure. The major endpoint was ICU mortality, the secondary endpoints were 30-day, 90-day mortality; ICU length of stay, the number of ventilator-free days at day 28. Result The study involved a total of 1301 critically ill patients. This study revealed that norMP was correlated with ICU mortality [OR per quartile increase 1.33 (95% CI 1.16–1.52), p < 0.001]. Similarly, norMP was correlated with ventilator-free days at day 28, ICU length of stay. In the subgroup analysis, high norMP was associated with ICU mortality whether low or high Vt (OR 1.31, 95% CI 1.09–1.57, p = 0.004; OR 1.32, 95% CI 1.08–1.62, p = 0.008, respectively). But high norMP was associated with ICU mortality only in low PIP (OR 1.18, 95% CI 1.01–1.38, p = 0.034). Conclusion Our findings indicate that higher norMP is independently linked with elevated ICU mortality and various other clinical findings in critically ill patients with a minimum of 48 h of invasive ventilation.Yanhong ZhuWenyong PengShuai ZhenXiaofeng JiangBMCarticleCritically illMortalityMechanical ventilationVentilator-induced lung injuryMechanical power normalized to predicted body weightAnesthesiologyRD78.3-87.3ENBMC Anesthesiology, Vol 21, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Critically ill Mortality Mechanical ventilation Ventilator-induced lung injury Mechanical power normalized to predicted body weight Anesthesiology RD78.3-87.3
spellingShingle	Critically ill Mortality Mechanical ventilation Ventilator-induced lung injury Mechanical power normalized to predicted body weight Anesthesiology RD78.3-87.3 Yanhong Zhu Wenyong Peng Shuai Zhen Xiaofeng Jiang Mechanical power normalized to predicted body weight is associated with mortality in critically ill patients: a cohort study
description	Abstract Background Mechanical power (MP), defined as the amount of energy produced by mechanical ventilation and released into the respiratory system, was reportedly a determining factor in the pathogenesis of ventilator-induced lung injury. However, previous studies suggest that the effects of MP were proportional to their involvement in the total lung function size. Therefore, MP normalized to the predicted body weight (norMP) should outperform the absolute MP value. The objective of this research is to determine the connection between norMP and mortality in critically ill patients who have been on invasive ventilation for at least 48 h. Methods This is a study of data stored in the databases of the MIMIC–III, which contains data of critically ill patients for over 50,000. The study involved critically ill patients who had been on invasive ventilation for at least 48 h. norMP was the relevant exposure. The major endpoint was ICU mortality, the secondary endpoints were 30-day, 90-day mortality; ICU length of stay, the number of ventilator-free days at day 28. Result The study involved a total of 1301 critically ill patients. This study revealed that norMP was correlated with ICU mortality [OR per quartile increase 1.33 (95% CI 1.16–1.52), p < 0.001]. Similarly, norMP was correlated with ventilator-free days at day 28, ICU length of stay. In the subgroup analysis, high norMP was associated with ICU mortality whether low or high Vt (OR 1.31, 95% CI 1.09–1.57, p = 0.004; OR 1.32, 95% CI 1.08–1.62, p = 0.008, respectively). But high norMP was associated with ICU mortality only in low PIP (OR 1.18, 95% CI 1.01–1.38, p = 0.034). Conclusion Our findings indicate that higher norMP is independently linked with elevated ICU mortality and various other clinical findings in critically ill patients with a minimum of 48 h of invasive ventilation.
format	article
author	Yanhong Zhu Wenyong Peng Shuai Zhen Xiaofeng Jiang
author_facet	Yanhong Zhu Wenyong Peng Shuai Zhen Xiaofeng Jiang
author_sort	Yanhong Zhu
title	Mechanical power normalized to predicted body weight is associated with mortality in critically ill patients: a cohort study
title_short	Mechanical power normalized to predicted body weight is associated with mortality in critically ill patients: a cohort study
title_full	Mechanical power normalized to predicted body weight is associated with mortality in critically ill patients: a cohort study
title_fullStr	Mechanical power normalized to predicted body weight is associated with mortality in critically ill patients: a cohort study
title_full_unstemmed	Mechanical power normalized to predicted body weight is associated with mortality in critically ill patients: a cohort study
title_sort	mechanical power normalized to predicted body weight is associated with mortality in critically ill patients: a cohort study
publisher	BMC
publishDate	2021
url	https://doaj.org/article/75dee4d9449c4b84878fc1415d09b3e5
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Mechanical power normalized to predicted body weight is associated with mortality in critically ill patients: a cohort study

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