相关实验视频

Updated: Jun 16, 2025

Ex Vivo Porcine Experimental Model for Studying and Teaching Lung Mechanics

Ex Vivo Porcine Experimental Model for Studying and Teaching Lung Mechanics

Published on: April 19, 2024

导出和外部验证的预测模型的侵入性机械通风在重症监护病房的COVID-19患者

Gabriel Maia^1,2, Camila Marinelli Martins³, Victoria Marques^1,4

¹Laboratory of Pulmonary Investigation, Institute of Biophysics Carlos Chagas Filho, Centro de Ciências da Saúde, Federal University of Rio de Janeiro, Avenida Carlos Chagas Filho, 273, Bloco G-014, Ilha do Fundão, Rio de Janeiro, 21941-902, RJ, Brazil.

Annals of intensive care

|August 21, 2024

概括

使用顺序器官衰竭评估 (SOFA) 评分,外周氧和 (SpO2) 和呼吸力信号的预测模型比ROX指数更好地预测了COVID-19患者的侵入性机械通风 (IMV) 需求.

科学领域:

关键护理医学关键护理医学
肺部病理学肺部病理学
传染性疾病传染性疾病

背景情况:

开发用于侵入性机械通风 (IMV) 的准确预后模型对于管理COVID-19的重症监护室 (ICU) 患者至关重要.
呼吸速率-氧化量 (ROX) 指数是常用的工具,但其在这个人群中的预测性能需要进一步评估.

研究的目的:

开发和验证预后模型,用于预测COVID-19的ICU患者对IMV的需求.
将这些新型模型的性能与已建立的ROX指数进行比较.

主要方法:

一项回顾性队列研究包括来自巴西三家医院的346名COVID-19的成年ICU患者 (2020年3月至2021年8月).
多重物流回归和Akaike信息标准 (AIC) 用于选择IMV的预测变量.
模型被评估为歧视和校准,在国际数据库上进行外部验证.

主要成果:

最终的模型确定了序列器官衰竭评估 (SOFA) 评分,外周氧和度 (SpO2) 和呼吸力信号作为IMV的关键预测因素.
需要IMV (7.3) 的患者的ROX指数比不需要IMV (9.6) 的患者低 (7.3).
在外部验证中,使用SOFA评分,SpO2和呼吸力信号的模型实现了比ROX指数 (63%) 更高的准确性 (79%).

结论:

与ROX指数相比,SOFA评分,SpO2和呼吸力信号显示了在COVID-19ICU患者中对IMV需求的优越预测能力.
这些变量为有关通风支持的临床决策提供了一个潜在的更准确和更可靠的工具.

关键词:

在 COVID-19 疫情中,外部验证的验证方法侵袭性机械通风侵入性机械通风多重物流回归的多重物流回归在SOFA中获得的分数是SOFA分数.这就是SPO2的存在.

更多相关视频

An R-Based Landscape Validation of a Competing Risk Model

An R-Based Landscape Validation of a Competing Risk Model

Published on: September 16, 2022

Murine Oropharyngeal Aspiration Model of Ventilator-associated and Hospital-acquired Bacterial Pneumonia

Murine Oropharyngeal Aspiration Model of Ventilator-associated and Hospital-acquired Bacterial Pneumonia

Published on: June 28, 2018

相关概念视频

Mechanical Ventilation II: Invasive Ventilation

Mechanical Ventilation II: Invasive Ventilation

Ventilators are essential medical equipment used to aid patients with respiratory difficulties. Their primary function is to assist or replace spontaneous breathing by providing mechanical ventilation. There are two general classes of mechanical ventilators: negative-pressure and positive-pressure ventilators.
Negative-Pressure Ventilators
Negative-pressure ventilators create a vacuum around the chest or body to draw air into the lungs, simulating breathing. This method does not require an...

Mechanical Ventilation III: Noninvasive Ventilation

Mechanical Ventilation III: Noninvasive Ventilation

Noninvasive positive-pressure ventilation (NIPPV), continuous positive airway pressure (CPAP), and bilevel positive airway pressure (BiPAP) are essential methods in respiratory care. These ventilation techniques offer unique benefits for patients with various respiratory conditions, providing adequate support without requiring intubation. Let's explore how each method is crucial in improving patient outcomes and enhancing respiratory therapy.
Noninvasive Positive-Pressure Ventilation...