FEV1/FVC与患有喘儿童年龄之间的关系
Amal Ahmed1, Amy Brown1,2,3, Yehudit Pollack1,2,3
1Boston Children's Health Physicians, Valhalla, New York, USA.
Pediatric pulmonology
|March 1, 2024
概括
患有喘的儿童在第一秒 (FEV1) /强迫生命能力 (FVC) 的强迫呼气体积中显示了一个保存的"牧羊"模式,尽管低于健康同龄人. 这种模式甚至在患有喘的肥胖儿童中也存在.
科学领域:
- 儿科肺病学 儿科肺病学
- 呼吸系统生理学 呼吸系统生理学
- 喘研究的研究
背景情况:
- 强迫呼吸量在第一秒 (FEV1) /强迫生命能力 (FVC) 的典型模式显示,在童年期间的减少,青春期早期的暂时增加,随后的下降.
- 在青春期早期,导致FEV1/FVC暂时增加的生理机制尚未完全理解.
- 在患有持续性喘的儿童中研究这种模式对于了解喘对肺功能发展的影响至关重要.
研究的目的:
- 为了确定FEV1/FVC的特征"牧羊"模式是否存在于患有持续性喘的儿童中.
- 将喘儿童的FEV1/FVC轨迹与健康儿童的轨迹进行比较.
- 评估肥胖对患有喘的儿童FEV/FVC模式的影响.
主要方法:
- 对1793名患有持续性喘的5-18岁儿童的肺功能测试进行了回顾性分析.
- 在一个单一的中心收集了5年的数据.
- 分析包括与健康儿童进行比较,并评估肥胖的影响.
主要成果:
- 与所有年龄段的健康儿童相比,患有持续性喘的儿童表现出较低的FEV/FVC比率.
- 尽管比率较低,但在喘儿童中保留了"牧羊"模式 (青春期早期的增加).
- 患有喘的肥胖儿童也表现出保留的模式,尽管FEV/FVC值始终较低.
结论:
- 在患有持续性喘的儿童中,FEV1/FVC的"牧羊"模式保持不变,这表明保持了相对肺生长动态.
- 与健康同龄人相比,喘与整个儿童和青少年时期的FEV1/FVC比率较低有关.
- 肥胖不会改变患有喘的儿童FEV/FVC发展的基本模式,但会加剧比率的下降.
相关概念视频
Asthma-II: Pathophysiology and Classification
2.7K
Asthma is a prevalent chronic respiratory condition marked by inflammation and hyperresponsiveness of the airways. Its pathophysiology involves complex interactions among inflammatory pathways, immune responses, and neural mechanisms.
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
2.7K
Asthma-IV: Diagnostic and Management
2.5K
The diagnosis and management of asthma are comprehensive, encompassing clinical assessments, lung function tests, and pharmacological interventions. Here's an overview:
Clinical Assessment for Asthma:
This is the first step in diagnosing and managing asthma. It includes:
Clinical Assessment for Asthma:
This is the first step in diagnosing and managing asthma. It includes:
2.5K
Asthma-III: Symptoms and Complications
2.5K
Asthma, a common chronic respiratory condition, is classified considering the frequency and severity of symptoms alongside lung function impairment. Understanding this classification is essential for appropriate treatment and management. Here's a detailed look at the classification of asthma and its clinical features and complications:
Classification of Asthma
Classification of Asthma
2.5K
Factors Affecting Pulmonary Ventilation
1.4K
Besides the pressure difference between the external environment and the lungs, the airflow rate and ease of pulmonary ventilation are also influenced by three other factors: surface tension of the fluid in the alveoli, compliance of the lungs, and airway resistance.
Alveolar Surface Tension
The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...
Alveolar Surface Tension
The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...
1.4K
Asthma: Pathogenesis and Management
396
Asthma is a chronic pulmonary condition involving inflammation of the airways, hyper-reactivity, and reversible obstruction of the airways. This condition can significantly impact a person's quality of life, making breathing difficult and leading to distressing symptoms.
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
396
Asthma-I: Introduction
2.6K
Asthma is a chronic respiratory ailment that requires careful management due to its varying symptoms and influencing factors. It is characterized by airway inflammation, bronchial hyperresponsiveness, and reversible airflow obstruction, leading to symptoms like wheezing, shortness of breath, chest tightness, and coughing. The symptom frequency and intensity may vary considerably over time. It is also linked to immune system responses to allergens and irritants, highlighting the complex...
2.6K


