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Related Concept Videos

Pulmonary Tuberculosis II01:28

Pulmonary Tuberculosis II

Tuberculosis, or TB, is a bacterial infectious disease caused by Mycobacterium tuberculosis. While its primary impact is on the lungs, leading to pulmonary tuberculosis, it can also affect various other organs, a condition referred to as extrapulmonary tuberculosis.
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
Pulmonary Tuberculosis I01:29

Pulmonary Tuberculosis I

Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
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 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-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: 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

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Related Experiment Videos

Tuberculosis Development in Chronic Obstructive Pulmonary Disease: A Nationwide Population-Based Study.

Haebeen Jeong1, Eunyoung Lee2, Ju Hyun Oh3

  • 1Hallym University School of Medicine, Chuncheon, Korea.

Journal of Korean Medical Science
|July 1, 2026
PubMed
Summary
This summary is machine-generated.

Patients with chronic obstructive pulmonary disease (COPD) who have a history of tuberculosis or were hospitalized are at higher risk for developing pulmonary tuberculosis. Older age and male sex also increase this risk.

Keywords:
Chronic Obstructive Pulmonary Disease (COPD)ComorbidityTuberculosis

Related Experiment Videos

Area of Science:

  • Pulmonology
  • Infectious Diseases
  • Epidemiology

Background:

  • Pulmonary tuberculosis (TB) is a significant comorbidity in patients with chronic obstructive pulmonary disease (COPD).
  • Risk factors for TB development in COPD patients require further investigation.
  • Understanding these risks is crucial for managing patients with both conditions.

Purpose of the Study:

  • To investigate the development of tuberculosis in COPD patients.
  • To identify risk factors associated with comorbidities and inhaler prescriptions in COPD patients.

Main Methods:

  • Retrospective cohort study using Korean Health Insurance Review and Assessment Service data (2015-2020).
  • Included 139,589 COPD patients (age ≥ 40) with new inhaler prescriptions.
  • Cox proportional hazards regression models identified significant risk factors.

Main Results:

  • A history of tuberculosis significantly increased TB risk (HR, 18.14).
  • Hospitalization during the study period was associated with increased TB risk (HR 1.30-1.54).
  • Older age and male sex were also identified as independent risk factors.

Conclusions:

  • History of tuberculosis and hospitalization are independent risk factors for pulmonary TB in COPD patients.
  • Old age and male sex are also significant risk factors.
  • These findings aid in identifying high-risk COPD patients for targeted TB prevention strategies.