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Related Concept Videos

Chronic Obstructive Pulmonary Disease-I: Introduction01:20

Chronic Obstructive Pulmonary Disease-I: Introduction

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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.
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Chronic Obstructive Pulmonary Disease-II: Pathophysiology01:20

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Chronic Obstructive Pulmonary Disease (COPD) pathophysiology is intricate and multifaceted, involving a complex interplay of physiological processes. Understanding these mechanisms is crucial for effectively managing and treating COPD. Here is an in-depth look at the critical elements in the pathophysiology of COPD:
Chronic Inflammation
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COPD: Pathogenesis and Clinical Features01:20

COPD: Pathogenesis and Clinical Features

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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...
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Factors Affecting Pulmonary Ventilation01:19

Factors Affecting Pulmonary Ventilation

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Besides the pressure difference between the external environment and the lungs, the airflow rate and ease of pulmonary ventilation are also influenced by three other factors: surface tension of the fluid in the alveoli, compliance of the lungs, and airway resistance.
Alveolar Surface Tension
The alveolar fluid lines the luminal surface of the alveoli and exerts a force called surface tension. This force is caused by the polar water molecules in the liquid being more strongly attracted to each...
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Pulmonary Function Tests01:25

Pulmonary Function Tests

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Pulmonary Function Tests (PFTs)
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
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Lung Capacity01:47

Lung Capacity

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The air in the lungs is measured in volumes and capacities. Lung volume measures reflect the amount of air taken in, released, or left over after a lung function, like a single inhalation. Lung capacity measures are sums of two or more lung volume measures.
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Updated: Dec 31, 2025

Author Spotlight: Advances in Quantifying Microvascular Density in Aging Murine Lungs
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Lung function and cardiovascular disease: A link.

Sergio H R Ramalho1, Amil M Shah2

  • 1Division of Cardiovascular Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02445, USA; Health Sciences and Technologies Program, University of Brasilia, Brazil.

Trends in Cardiovascular Medicine
|January 15, 2020
PubMed
Summary
This summary is machine-generated.

Reduced lung function, even without diagnosed lung disease, increases the risk of heart disease. Spirometry, a lung function test, is underutilized but crucial for assessing cardiovascular risk.

Keywords:
COPDCardiovascular diseaseHeart failureRestrictive lung diseaseRisk factors

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Area of Science:

  • Pulmonary Medicine
  • Cardiology
  • Epidemiology

Background:

  • The link between lung and heart diseases is well-established, with shared risk factors and pathophysiological pathways.
  • Subclinical pulmonary dysfunction is increasingly recognized as a predictor of cardiovascular disease.

Purpose of the Study:

  • To review the current understanding of the relationship between lung function and cardiovascular disease.
  • To highlight the underutilization of spirometry in clinical practice for cardiovascular risk assessment.

Main Methods:

  • Review of existing literature and epidemiological studies.
  • Analysis of spirometric measures (e.g., forced vital capacity, forced expiratory volume in 1 second) and their association with cardiovascular outcomes.
  • Exploration of potential biological mechanisms linking lung and heart dysfunction.

Main Results:

  • Lower lung function (spirometry) is associated with increased risk of cardiovascular risk factors (hypertension, obesity, metabolic syndrome) and diseases (heart failure, atrial fibrillation, stroke).
  • Restrictive ventilatory patterns show a strong independent association with cardiovascular diseases like heart failure.
  • Pulmonary dysfunction correlates with subclinical cardiac abnormalities.

Conclusions:

  • Pulmonary function, assessed by spirometry, is a significant, yet underutilized, predictor of cardiovascular disease.
  • Chronic systemic inflammation is a likely mechanism linking lung and heart dysfunction.
  • Further research is needed to clarify optimal therapeutic and preventive strategies.