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Related Concept Videos

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
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-IV: Diagnostic and Management01:30

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:
Larynx01:21

Larynx

The human larynx, often referred to as the voice box, is an intricate organ located in the neck. It serves as a pathway for air to enter the lungs during respiration and is an essential component of voice production.
Anatomy of the Larynx
The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids, corniculates, and...
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...

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Related Experiment Video

Updated: Jun 18, 2026

Asthma Detection Research Based on Voice Signal Processing and Machine Learning
04:04

Asthma Detection Research Based on Voice Signal Processing and Machine Learning

Published on: July 22, 2025

Vocal cord dysfunction: beyond severe asthma.

Jonathan P Parsons1, Cathy Benninger, Miles P Hawley

  • 1The Ohio State University Medical Center, Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine, 201 Davis Heart/Lung Research Institute, Columbus, OH 43210, USA. jonathan.parsons@osumc.edu

Respiratory Medicine
|December 8, 2009
PubMed
Summary
This summary is machine-generated.

Vocal cord dysfunction (VCD) is common in asthma patients, even those with mild symptoms. Many patients lack classic VCD signs, necessitating a high suspicion for accurate diagnosis and treatment.

Related Experiment Videos

Last Updated: Jun 18, 2026

Asthma Detection Research Based on Voice Signal Processing and Machine Learning
04:04

Asthma Detection Research Based on Voice Signal Processing and Machine Learning

Published on: July 22, 2025

Area of Science:

  • Pulmonology
  • Otolaryngology

Background:

  • Vocal cord dysfunction (VCD) causes airway obstruction and is a known asthma confounder.
  • The impact of VCD on mild-to-moderate asthma remains underdefined.

Purpose of the Study:

  • To investigate the prevalence and characteristics of VCD in patients with asthma, particularly those with less severe disease.

Main Methods:

  • Retrospective review of 59 asthma patients diagnosed by pulmonologists.
  • Videolaryngostroboscopy (VLS) was used for diagnosis.

Main Results:

  • 44 patients had both asthma and VCD; 15 had asthma alone.
  • Most patients (78%) had mild-to-moderate asthma, with 72% of these also having VCD.
  • Classic VCD symptoms like stridor were rare; GERD and rhinitis were common comorbidities.

Conclusions:

  • VCD occurs across all asthma severity levels.
  • Asthma patients often present with atypical VCD symptoms, requiring a high index of suspicion.
  • Undiagnosed VCD can lead to misjudgments in asthma control and treatment, with GERD potentially playing a role in VCD development.