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Related Concept Videos

Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies01:27

Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies

Assessing and diagnosing Chronic Obstructive Pulmonary Disease (COPD) involves a detailed approach that includes a comprehensive review of medical history, physical examination, and a variety of diagnostic tests. This thorough evaluation is essential to ensure an accurate diagnosis and guide effective management strategies.
Medical History
COPD: Pathogenesis and Clinical Features01:20

COPD: Pathogenesis and Clinical Features

Chronic obstructive pulmonary disease (COPD) is a group of lung conditions that progressively worsen over time, including chronic bronchitis and emphysema. This cluster of diseases collectively leads to a gradual and irreversible decline in lung function over time.
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.01:25

Chronic Obstructive Pulmonary Disease-III: Symptoms and Complications.

Understanding the variety of primary symptoms and systemic complications that characterize chronic obstructive pulmonary disease (COPD) is crucial for healthcare professionals.
Symptoms of COPD can be classified as primary or systemic. Primary symptoms relate to reduced airflow, while systemic or extrapulmonary symptoms relate to COPD's broader impact on the body.
Primary Symptoms of COPD:
Chronic Obstructive Pulmonary Disease-I: Introduction01:20

Chronic Obstructive Pulmonary Disease-I: Introduction

Chronic Obstructive Pulmonary Disease (COPD) is a long-lasting respiratory condition requiring continuous attention and care. It is a progressive lung disease that leads to breathing challenges due to airflow obstruction. It manifests as persistent respiratory symptoms and restricted airflow resulting from abnormalities in the airways and alveoli, usually due to long-term exposure to harmful particles or gases. COPD mainly consists of two primary conditions: emphysema and chronic bronchitis.
COPD: Management Using Bronchodilators and Corticosteroids01:26

COPD: Management Using Bronchodilators and Corticosteroids

Chronic obstructive pulmonary isease (COPD) involves a group of progressive lung disorders characterized by persistent airflow limitation and chronic respiratory symptoms. Asthma-COPD Overlap Syndrome (ACOS), encompassing features of both asthma and Chronic obstructive pulmonary disease (COPD), is a group of progressive lung disorders that includes chronic bronchitis, emphysema, and refractory (non-reversible) asthma. ACOS leads to complex clinical presentations that combine the inflammatory...
Chronic Obstructive Pulmonary Disease-V: Management01:29

Chronic Obstructive Pulmonary Disease-V: Management

Managing Chronic Obstructive Pulmonary Disease (COPD) involves a multifaceted approach to reduce symptoms, prevent exacerbations, improve overall health status, and slow disease progression. Key strategies include lifestyle modifications, pharmacotherapy, supportive therapies, and, in some cases, surgery. Here is an overview of the primary COPD management strategies:
Smoking Cessation

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Related Experiment Video

Updated: May 7, 2026

Dual Test Gas Pulmonary Diffusing Capacity Measurement During Exercise in Humans Using the Single-Breath Method
08:44

Dual Test Gas Pulmonary Diffusing Capacity Measurement During Exercise in Humans Using the Single-Breath Method

Published on: February 2, 2024

Longitudinal assessment in COPD patients: multidimensional variability and outcomes.

Ciro Casanova1, Armando Aguirre-Jaíme, Juan P de Torres

  • 1Hospital Universitario La Candelaria, Tenerife.

The European Respiratory Journal
|September 28, 2013
PubMed
Summary

Chronic obstructive pulmonary disease (COPD) progression varies. Monitoring the BODE index, not FEV1, better predicts mortality in COPD patients.

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Multi-modal Pulmonary Imaging: Using Complementary Information from CT and Hyperpolarized 129Xe MRI to Evaluate Lung Structure-Function
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Last Updated: May 7, 2026

Dual Test Gas Pulmonary Diffusing Capacity Measurement During Exercise in Humans Using the Single-Breath Method
08:44

Dual Test Gas Pulmonary Diffusing Capacity Measurement During Exercise in Humans Using the Single-Breath Method

Published on: February 2, 2024

Multi-modal Pulmonary Imaging: Using Complementary Information from CT and Hyperpolarized 129Xe MRI to Evaluate Lung Structure-Function
02:09

Multi-modal Pulmonary Imaging: Using Complementary Information from CT and Hyperpolarized 129Xe MRI to Evaluate Lung Structure-Function

Published on: April 12, 2024

Area of Science:

  • Pulmonology
  • Clinical Medicine
  • Respiratory Research

Background:

  • The variability and prognostic value of multidimensional assessments in chronic obstructive pulmonary disease (COPD) are not well understood.
  • Limited data exists on the relationship between COPD assessment variability and patient outcomes, particularly mortality.

Purpose of the Study:

  • To determine COPD progression using clinical and spirometric variability over time.
  • To establish the relationship between assessment variability and mortality in COPD patients.

Main Methods:

  • Assessed annual intra-individual variability of forced expiratory volume in 1 second (FEV1) and the BODE index in 403 COPD patients with at least five measurements.
  • Defined "stable" and "unstable" patterns of annual change.
  • Explored the minimum number of yearly observations needed to predict mortality in 704 patients.

Main Results:

  • An "unstable" FEV1 pattern was observed in 53% and 40% of patients, indicating poor consistency.
  • The BODE index exhibited a more "stable" pattern in 62% of patients.
  • A mortality prediction profile included baseline and 2-year annual BODE index measurements, but not individual components like FEV1 (p<0.001).

Conclusions:

  • FEV1 variability is inconsistent and poorly predicts COPD outcomes.
  • The BODE index offers a more stable and reliable measure for assessing COPD progression and predicting mortality.