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Related Concept Videos

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...
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: 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-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 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-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

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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

Current topics in occupational asthma.

Sherwood Burge1, Jennifer Hoyle

  • 1Occupational Lung Disease Unit, Birmingham Heartlands Hospital, Birmingham, B9 5SS, UK. sherwood.burge@heartofengland.nhs.uk

Expert Review of Respiratory Medicine
|December 14, 2012
PubMed
Summary
This summary is machine-generated.

Occupational asthma (OA) research offers unique insights into general asthma by identifying known causes and influencing factors. OA significantly impacts patients' livelihoods, presenting challenges in diagnosis and workplace acceptance.

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Generation of a Chronic Obstructive Pulmonary Disease Model in Mice by Repeated Ozone Exposure
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Area of Science:

  • Occupational medicine
  • Respiratory medicine
  • Immunology

Background:

  • Occupational asthma (OA) serves as a model for studying general asthma due to its identifiable causative agents.
  • The known etiology of OA allows for precise measurement of cause-response relationships and quantification of modifying factors.
  • Onset of OA often has severe socio-economic consequences for patients, impacting their employment.

Purpose of the Study:

  • To review key areas of development and ongoing controversy within the study of occupational asthma.
  • To highlight the unique aspects of OA research, including its direct impact on patient livelihood and diagnostic challenges.

Main Methods:

  • Literature review of occupational asthma research.
  • Analysis of factors influencing OA development and diagnosis.
  • Discussion of challenges in clinical and workplace acceptance of OA.

Main Results:

  • OA research provides a unique window into asthma pathogenesis.
  • Quantifiable relationships between workplace exposures and asthma symptoms are key.
  • Diagnosis and acceptance of OA are complicated by socio-economic factors and professional biases.

Conclusions:

  • Occupational asthma research offers valuable insights applicable to general asthma.
  • The identifiable nature of OA allows for detailed study of exposure-response dynamics.
  • Addressing controversies and challenges in OA is crucial for patient welfare and effective management.