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Related Experiment Videos

Allergies, mediators and asthma.

D H Bryant

    The Medical Journal of Australia
    |September 1, 1984
    PubMed
    Summary
    This summary is machine-generated.

    Defining asthma is challenging due to its wide clinical spectrum, from mild bronchospasm to severe chronic airflow obstruction. Reversibility, a key asthma feature, can be difficult to demonstrate in severe cases requiring prolonged treatment.

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    Area of Science:

    • Pulmonology
    • Respiratory Medicine

    Background:

    • Asthma is historically defined by breathlessness and wheezing.
    • It presents a broad clinical spectrum, from mild, reversible bronchospasm to severe, chronic airflow obstruction.
    • Diagnosing asthma is complex due to this wide variability.

    Purpose of the Study:

    • To explore the challenges in defining and diagnosing asthma.
    • To highlight the difficulties in assessing airflow obstruction reversibility.

    Main Methods:

    • Review of historical and clinical definitions of asthma.
    • Analysis of clinical presentations, including severe acute exacerbations.

    Main Results:

    • Asthma encompasses a wide range of severity and clinical features.

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  • Demonstrating reversibility of airflow obstruction can be challenging, especially in severe asthma attacks.
  • Severe asthma may require extended treatment before reversibility is evident.

    • Conclusions:

    • The broad clinical spectrum of asthma complicates a singular definition.
    • Reversibility of airflow obstruction is a key diagnostic feature but not always readily apparent.
    • Accurate asthma diagnosis requires consideration of the full clinical picture and response to treatment.