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Asthma-I: Introduction

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-II: Pathophysiology and Classification

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.
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Asthma: Pathogenesis and Management

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.
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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:
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Related Experiment Video

Updated: Jan 25, 2026

Acupuncture in a Rat Model of Asthma

Acupuncture in a Rat Model of Asthma

Published on: August 25, 2020

Over- and under-diagnosis in asthma.

Joanne Kavanagh^1,2, David J Jackson^1,2, Brian D Kent^1,2

¹Guy's Asthma Centre, Guy's and St. Thomas' Hospitals, London, UK.

Breathe (Sheffield, England)

|April 30, 2019

Summary

Accurate asthma diagnosis is challenging due to common symptoms and normal exams. Standardized objective testing before treatment is crucial to prevent misdiagnosis, improving patient outcomes.

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Area of Science:

Pulmonology
Diagnostic Medicine

Background:

Asthma affects approximately 10% of Europeans, presenting with diverse symptoms and often normal physical examinations.
Current diagnostic methods lack a gold standard, and objective tests are not always accessible in primary care.
Misdiagnosis of asthma, both over- and under-diagnosis, is prevalent, leading to suboptimal patient care.

Purpose of the Study:

To highlight the challenges in asthma diagnosis.
To emphasize the need for a standardized diagnostic approach.
To underscore the risks associated with misdiagnosing asthma.

Main Methods:

Review of existing literature on asthma diagnosis.
Analysis of current diagnostic guidelines and their limitations.
Discussion of the impact of objective testing on diagnostic accuracy.

Main Results:

Asthma diagnosis is complicated by non-specific symptoms and normal physical findings.
Objective tests like spirometry can be normal outside of exacerbations.
Pre-treatment testing can reduce the sensitivity of diagnostic measures.

Conclusions:

There is no universally agreed-upon gold standard for asthma diagnosis.
Significant variations exist in diagnostic algorithms across guidelines.
A standardized approach incorporating objective measurements before treatment is essential to reduce misdiagnosis rates and mitigate patient risks.