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Related Concept Videos

Asthma III: Clinical Manifestations01:13

Asthma III: Clinical Manifestations

Asthma presents with a characteristic pattern of episodic respiratory symptoms that reflect underlying airway inflammation, bronchoconstriction, and mucus hypersecretion. Although severity varies among individuals, certain clinical manifestations are considered hallmarks of the disorder and often guide diagnosis and assessment.Respiratory SymptomsA persistent cough is one of the most common early features of asthma. It is frequently dry and tends to worsen at night or in the early morning,...
Asthma I: Introduction01:28

Asthma I: Introduction

Asthma is a chronic inflammatory disorder of the airways characterized by variable airflow obstruction and heightened bronchial responsiveness to a wide range of triggers. The underlying inflammation leads to airway swelling, mucus hypersecretion, and smooth muscle constriction, all of which narrow the airway lumen and impede airflow. Clinically, asthma presents with recurrent episodes of wheezing, shortness of breath, chest tightness, and coughing, symptoms that typically vary in intensity and...
Asthma-III: Symptoms and Complications01:24

Asthma-III: Symptoms and Complications

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
Asthma-II: Pathophysiology and Classification01:26

Asthma-II: Pathophysiology and Classification

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:
Asthma: Pathogenesis and Management01:20

Asthma: Pathogenesis and Management

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-I: Introduction01:29

Asthma-I: Introduction

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...

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Related Experiment Video

Updated: Jun 27, 2026

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma
14:39

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma

Published on: November 4, 2010

Severe asthma and its phenotype.

Sally E Wenzel1

  • 1Asthma and Allergic Disease Programs, University of Pittsburgh/UPMC, Pittsburgh, PA, USA.

The Journal of Asthma : Official Journal of the Association for the Care of Asthma
|December 19, 2008
PubMed
Summary
This summary is machine-generated.

Severe asthma phenotypes are not well understood. Key factors include comorbidities, poor adherence, and persistent airflow limitation, necessitating individualized treatment approaches for better outcomes.

Related Experiment Videos

Last Updated: Jun 27, 2026

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma
14:39

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma

Published on: November 4, 2010

Area of Science:

  • Pulmonology
  • Clinical Medicine

Background:

  • Severe asthma, also known as difficult-to-treat asthma, presents a significant clinical challenge.
  • Understanding the underlying phenotypes is crucial for effective management.

Purpose of the Study:

  • To elucidate the poorly understood phenotype of severe asthma.
  • To identify factors associated with severe asthma and its long-term prognosis.

Main Methods:

  • Review of recent informative studies on severe asthma.
  • Analysis of factors contributing to severe asthma and its prognosis.

Main Results:

  • Common comorbidities associated with severe asthma include sinusitis, obesity, and gastroesophageal reflux.
  • Poor adherence to treatment regimens and severe underlying disease processes are significant factors.
  • Persistent airflow limitation and frequent exacerbations correlate with the worst long-term prognosis.

Conclusions:

  • Individualizing asthma therapy based on specific patient phenotypes is highly recommended.
  • Recognizing contributing factors and prognostic indicators can guide clinical decision-making for severe asthma patients.