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Asthma III: Clinical Manifestations

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-IV: Diagnostic and Management

Asthma-IV: Diagnostic and Management

The diagnosis and management of asthma are comprehensive, encompassing clinical assessments, lung function tests, and pharmacological interventions. Here's an overview:
Clinical Assessment for Asthma:
This is the first step in diagnosing and managing asthma. It includes:

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 I: Introduction

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-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.
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 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.
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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Updated: Apr 23, 2026

Asthma Detection Research Based on Voice Signal Processing and Machine Learning

Asthma Detection Research Based on Voice Signal Processing and Machine Learning

Published on: July 22, 2025

Characterizing thunderstorm asthma emergency department presentations using natural language processing for improved

Sedigh Khademi^1,2, Gerardo Luis Dimaguila^1,2, Christopher Palmer¹

¹Health Informatics Group, Centre for Health Analytics, Melbourne Children's Campus, Melbourne, Australia.

American Journal of Epidemiology

|April 22, 2026

Summary

Rapid detection of thunderstorm asthma is crucial. This study found distinct patterns in emergency department visits during these events, aiding public health preparedness.

Keywords:

emergency preparedness natural language processing population health syndromic surveillance thunderstorm asthma

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Published on: November 4, 2010

Area of Science:

Environmental Health
Epidemiology
Public Health Surveillance

Background:

Thunderstorm asthma events pose significant public health risks, rapidly overwhelming emergency departments.
Effective preparedness necessitates rapid detection and understanding of thunderstorm asthma presentation patterns.

Purpose of the Study:

To identify distinctive demographic, temporal, and clinical patterns of thunderstorm asthma presentations in emergency departments.
To enhance the real-time detection and surveillance of thunderstorm asthma incidence.

Main Methods:

Analysis of triage notes from three thunderstorm asthma events (2022-2024) in Victoria, Australia, using the SynSurv surveillance system.
Comparison of 687 thunderstorm-related presentations with 687 control presentations using natural language processing and manual review.
Statistical comparison of demographic, symptom-onset, and comorbidity data via chi-square tests and temporal analysis.

Main Results:

Thunderstorm asthma cases exhibited significantly higher acute symptom onset within 24 hours (63.0% vs. 47.2%).
Presentations peaked 3-8 hours post-storm, returning to baseline within 24 hours.
Affected individuals skewed towards young adults (21-40 years), with threefold higher rates of allergic comorbidities.

Conclusions:

Distinct demographic, temporal, and allergic profiles characterize thunderstorm asthma presentations.
These findings can inform the development of refined detection models for enhanced real-time surveillance and emergency preparedness.
Improved surveillance can bolster public health responses to severe weather-related asthma events.