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Related Concept Videos

Asthma: Pathogenesis and Management01:20

Asthma: Pathogenesis and Management

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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.
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Factors Affecting Pulmonary Ventilation01:19

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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
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Chronic Obstructive Pulmonary Disease-II: Pathophysiology01:20

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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
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Asthma-II: Pathophysiology and Classification01:26

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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.
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Asthma I: Introduction01:28

Asthma I: Introduction

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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...
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Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features01:24

Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features

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Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...
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Related Experiment Video

Updated: May 7, 2026

Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma
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Asthma outcomes: pulmonary physiology.

Robert S Tepper1, Robert S Wise, Ronina Covar

  • 1Indiana University, Indianapolis, Indiana, USA.

The Journal of Allergy and Clinical Immunology
|March 6, 2012
PubMed
Summary
This summary is machine-generated.

Pulmonary function tests are crucial for asthma research. Spirometric outcomes like FEV1 are recommended as core measures for future clinical trials to ensure consistent comparisons.

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Bronchial Thermoplasty: A Novel Therapeutic Approach to Severe Asthma
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Area of Science:

  • Pulmonary physiology
  • Asthma research
  • Clinical trials

Background:

  • Pulmonary physiology outcomes are vital in asthma clinical research.
  • Standardized assessment of these outcomes is needed for cross-study comparisons.

Purpose of the Study:

  • To provide recommendations on pulmonary function measures as asthma outcomes.
  • To standardize their assessment in future asthma clinical trials and studies.

Main Methods:

  • A subcommittee conducted a PubMed search for validated airway response tests in asthma research.
  • Instruments were classified as core, supplemental, or emerging.
  • Findings were discussed at an NIH workshop and finalized.

Main Results:

  • A list of pulmonary physiology outcomes for adults and children over 6 years was created.
  • Outcomes were categorized into core, supplemental, and emerging.
  • Spirometric outcomes (FEV1, FVC, FEV1/FVC) and bronchodilator reversibility were proposed as core outcomes.

Conclusions:

  • Pulmonary physiology outcomes are critically important in asthma research.
  • Spirometric outcomes are recommended as core for all future NIH-initiated asthma clinical research.