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Related Concept Videos

Chronic Obstructive Pulmonary Disease01:24

Chronic Obstructive Pulmonary Disease

COPD is defined as a heterogeneous lung condition marked by persistent respiratory symptoms such as dyspnea, cough, and sputum production, caused by abnormalities in the airways that cause airflow obstruction.
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
Chronic Obstructive Pulmonary Disease I: Introduction01:23

Chronic Obstructive Pulmonary Disease I: Introduction

Chronic obstructive pulmonary disease is a common, preventable, and treatable respiratory disorder characterized by persistent symptoms and progressive airflow limitation. This limitation results from a combination of small-airway disease (obstructive bronchiolitis) and parenchymal destruction (emphysema), both driven by chronic inflammation from exposure to harmful particles or gases.The disease includes two main pathological entities: emphysema, marked by destruction of alveolar walls and...
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.
Chronic Obstructive Pulmonary Disease IV: Clinical Manifestations01:19

Chronic Obstructive Pulmonary Disease IV: Clinical Manifestations

Chronic Obstructive Pulmonary Disease, or COPD, is a long-term condition marked by persistent and only partially reversible airflow limitation. It involves two overlapping conditions—chronic bronchitis and emphysema—which often co-appear but differ in dominant symptoms and underlying mechanisms.Chronic Bronchitis FeaturesChronic bronchitis presents with a persistent productive cough and thick, sometimes purulent mucus due to airway inflammation, enlarged mucus glands, and goblet cell...
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features01:24

Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features

Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...
Chronic Obstructive Pulmonary Disease II: Emphysema01:23

Chronic Obstructive Pulmonary Disease II: Emphysema

Emphysema, a major phenotype of chronic obstructive pulmonary disease (COPD), is characterized by irreversible destruction of alveolar walls and permanent enlargement of distal airspaces. Unlike chronic bronchitis, which primarily affects the airways, emphysema predominantly involves the lung parenchyma, where structural damage leads to airflow limitation.PathophysiologyIt most commonly results from prolonged exposure to cigarette smoke and other toxic gases, particularly cigarette smoke.

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Related Experiment Video

Updated: May 19, 2026

Home-Based Prescribed Pulmonary Exercise in Patients with Stable Chronic Obstructive Pulmonary Disease
07:10

Home-Based Prescribed Pulmonary Exercise in Patients with Stable Chronic Obstructive Pulmonary Disease

Published on: August 24, 2019

Life Expectancy in Chronic Obstructive Pulmonary Disease.

Surya P Bhatt1,2, Yifei Sun3, Yuhan Wang3

  • 1Center for Lung Analytics and Imaging Research, University of Alabama at Birmingham.

JAMA Internal Medicine
|May 17, 2026
PubMed
Summary
This summary is machine-generated.

Chronic obstructive pulmonary disease (COPD) significantly reduces life expectancy and increases years of life lost (YLL), even in never-smokers. Disease severity directly correlates with greater YLL, highlighting the urgent need for better COPD management and prevention strategies.

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Generation of a Chronic Obstructive Pulmonary Disease Model in Mice by Repeated Ozone Exposure
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Alternative Therapy for Acute Exacerbation of Chronic Obstructive Pulmonary Disease: Moving Cupping Along Meridians
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Last Updated: May 19, 2026

Home-Based Prescribed Pulmonary Exercise in Patients with Stable Chronic Obstructive Pulmonary Disease
07:10

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Generation of a Chronic Obstructive Pulmonary Disease Model in Mice by Repeated Ozone Exposure
08:17

Generation of a Chronic Obstructive Pulmonary Disease Model in Mice by Repeated Ozone Exposure

Published on: August 25, 2017

Alternative Therapy for Acute Exacerbation of Chronic Obstructive Pulmonary Disease: Moving Cupping Along Meridians
04:03

Alternative Therapy for Acute Exacerbation of Chronic Obstructive Pulmonary Disease: Moving Cupping Along Meridians

Published on: September 27, 2024

Area of Science:

  • Pulmonary Medicine
  • Epidemiology
  • Public Health

Background:

  • Chronic obstructive pulmonary disease (COPD) is a major cause of mortality, with a concerning rise in age-standardized death rates.
  • Accurate estimations of life expectancy and years of life lost (YLL) due to COPD are crucial for patient care and policy development but are currently lacking.

Purpose of the Study:

  • To investigate the association between COPD and reduced life expectancy.
  • To determine if COPD-related YLL correlate with disease severity.

Main Methods:

  • Utilized data from the National Heart, Lung, and Blood Institute (NHLBI) Pooled Cohorts Study, encompassing 45,886 participants.
  • Employed a parametric proportional hazards model with a Gompertz baseline hazard function to estimate survival and life expectancy by Global Initiative for Chronic Obstructive Lung Disease (GOLD) stage.
  • Calculated YLL by comparing individuals with COPD to those without airflow obstruction, adjusting for various demographic and health factors.

Main Results:

  • COPD was present in 17.6% of participants (8,058 individuals).
  • Mean life expectancy at age 65 for individuals without COPD was 21.5 years, decreasing significantly with GOLD stage (e.g., 10.7 years for GOLD stage 4).
  • YLL increased with COPD severity, with GOLD stage 4 showing 7.12 YLL. YLL for GOLD stages 2-4 were comparable to or exceeded those for hypertension, diabetes, obesity, and smoking.

Conclusions:

  • COPD is definitively associated with a lower life expectancy.
  • The study demonstrates a clear correlation between COPD severity and increased YLL.
  • These findings underscore the substantial burden of COPD and its impact on longevity, even in non-smokers.