作为慢性阻塞性肺部疾病临床队列住院预测者的扩散能力
Aparna Balasubramanian1, Andrew S Gearhart2, Nirupama Putcha1
1Division of Pulmonary and Critical Care Medicine, Johns Hopkins University, Baltimore, Maryland.
Annals of the American Thoracic Society
|October 23, 2023
概括
肺部对一氧化碳 (DlCO) 的低扩散能力预测慢性阻塞性肺病 (COPD) 患者的住院治疗. 这一发现支持在COPD风险评估中使用DlCO.
科学领域:
- 肺部医学 肺部医学
- 呼吸系统生理学 呼吸系统生理学
- 临床流行病学 临床流行病学
背景情况:
- 慢性阻塞性肺病 (COPD) 的住院治疗对患者来说是一个很大的负担.
- 肺部对一氧化碳 (DlCO) 的扩散能力是COPD结果的潜在预测因素,但其在大型队列中的实用性仍未得到充分研究.
研究的目的:
- 评估是否临床获得的DlCO测量预测了COPD相关的住院治疗.
- 评估DlCO的独立预测值,超越空气流阻塞和先前住院史.
主要方法:
- 对一组COPD患者和可用的DlCO测量进行了时间到事件分析.
- 考克斯比例危险模型被用来评估DlCO与首次COPD住院或死亡的时间之间的关联,并根据多种临床因素进行调整.
- 用DlCO和没有DlCO的风险预测模型使用接收器操作曲线 (AUC) 下的面积进行了比较,并进行了外部验证.
主要成果:
- 预测DlCO的10%降低与COPD住院的风险增加10%有关 (HR,1.1;P < 0.001).
- DlCO独立预测了COPD住院和住院或死亡的复合.
- 结合DlCO的风险预测模型表现出强的性能 (AUC = 0.85),得到了外部验证 (AUC = 0.84).
结论:
- 肺部对一氧化碳的扩散能力是COPD住院治疗的强大,独立的预测因素.
- 这些发现支持将DlCO测量纳入COPD患者的常规风险评估策略.
相关概念视频
01:20Chronic Obstructive Pulmonary Disease-I: Introduction
2.8K
Chronic Obstructive Pulmonary Disease (COPD) is a long-lasting respiratory condition requiring continuous attention and care. It is a progressive lung disease that leads to breathing challenges due to airflow obstruction. It manifests as persistent respiratory symptoms and restricted airflow resulting from abnormalities in the airways and alveoli, usually due to long-term exposure to harmful particles or gases. COPD mainly consists of two primary conditions: emphysema and chronic bronchitis.
2.8K
01:27Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies
2.5K
Assessing and diagnosing Chronic Obstructive Pulmonary Disease (COPD) involves a detailed approach that includes a comprehensive review of medical history, physical examination, and a variety of diagnostic tests. This thorough evaluation is essential to ensure an accurate diagnosis and guide effective management strategies.
Medical History
Medical History
2.5K
01:22Chronic Obstructive Pulmonary Disease
1.3K
COPD is defined as a heterogeneous lung condition marked by persistent respiratory symptoms such as dyspnea, cough, and sputum production, caused by abnormalities in the airways that cause airflow obstruction.
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
1.3K
01:20Chronic Obstructive Pulmonary Disease-II: Pathophysiology
2.8K
Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
Chronic Inflammation
2.8K
01:26COPD: Management Using Bronchodilators and Corticosteroids
217
Chronic obstructive pulmonary isease (COPD) involves a group of progressive lung disorders characterized by persistent airflow limitation and chronic respiratory symptoms. Asthma-COPD Overlap Syndrome (ACOS), encompassing features of both asthma and Chronic obstructive pulmonary disease (COPD), is a group of progressive lung disorders that includes chronic bronchitis, emphysema, and refractory (non-reversible) asthma. ACOS leads to complex clinical presentations that combine the inflammatory...
217
01:20COPD: Pathogenesis and Clinical Features
305
Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
305