Related Experiment Video
Updated: Nov 12, 2025
08:17
Generation of a Chronic Obstructive Pulmonary Disease Model in Mice by Repeated Ozone Exposure
Published on: August 25, 2017
11.2K
Does lung function change in the months after an asthma exacerbation in children?
Joanne Martin1, Marielle W Pijnenburg2, Graham Roberts3
1Child Health, University of Aberdeen, Aberdeen, UK.
Summary
Asthma exacerbations in children generally do not cause lasting lung function decline. While some children experience temporary drops in lung function (FEV1), lung function typically returns to pre-exacerbation levels within months.
Area of Science:
- Pediatric Pulmonology
- Respiratory Medicine
- Asthma Research
Background:
- Limited data exists on lung function changes in children post-asthma exacerbation.
- Hypothesized that lung function may not fully recover in children following an asthma exacerbation.
Purpose of the Study:
- To investigate lung function recovery in children after asthma exacerbations.
- To analyze spirometry changes at 3-month intervals over one year in relation to asthma exacerbations.
Main Methods:
- Utilized a dataset of children with asthma, measuring lung function (FEV1, FEV1/FVC, FEF25-75) over a year.
- Employed mixed-level models to compare spirometry before and after exacerbations.
- Analyzed yearly spirometry changes across different exacerbation frequencies.
Main Results:
- For the overall population, one or more asthma exacerbations were not linked to a decrease in lung function.
- In a subset of children, lung function decreased post-exacerbation but recovered to pre-exacerbation levels within months.
- No significant change in %FEV1 over 12 months was observed within or between exacerbation categories.
Conclusions:
- Asthma exacerbations in children are not associated with a population-level decline in lung function.
- Individual children may experience temporary lung function reduction after exacerbations, but recovery to baseline is typical.
Related Concept Videos
01:24Asthma-III: Symptoms and Complications
2.8K
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
2.8K
01:17Pulmonary Cycle: Exhalation
2.4K
In terms of human respiration, the act of expelling air, known as exhalation (or expiration), operates on the principle of pressure gradients. During expiration, the pressure within the lungs exceeds that of the surrounding atmosphere. Under normal conditions, quiet breathing involves passive exhalation and is free of muscular contractions. This is because the exhalation process is driven by the natural elastic recoil of the lungs and chest wall, both of which have an inherent tendency to...
2.4K
01:26Asthma-II: Pathophysiology and Classification
3.5K
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:
3.5K
01:20Chronic Obstructive Pulmonary Disease-II: Pathophysiology
3.6K
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
3.6K
01:29Asthma-I: Introduction
3.0K
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...
3.0K
01:20Asthma: Pathogenesis and Management
937
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.
937