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Related Concept Videos

Pulmonary Tuberculosis I01:29

Pulmonary Tuberculosis I

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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...
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Pulmonary Tuberculosis II01:28

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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...
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Pulmonary Tuberculosis V01:28

Pulmonary Tuberculosis V

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Medical management of tuberculosis (TB) patients involves a comprehensive approach that includes diagnosis, treatment, and monitoring. The specific strategies can vary depending on the type of tuberculosis (latent or active), the patient's overall health status, and other considerations.
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the...
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Pulmonary Tuberculosis III01:31

Pulmonary Tuberculosis III

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Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
The first classification is based on the development of the disease, and it includes the following categories:
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Pulmonary Tuberculosis IV01:26

Pulmonary Tuberculosis IV

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Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
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Other Pulmonary Disorders01:17

Other Pulmonary Disorders

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Respiratory disorders encompass a range of conditions with varying levels of severity. Asthma, marked by chronic airway inflammation and hypersensitivity, is one such condition. It can lead to airway obstruction due to factors like bronchial spasms, mucosal edema, increased mucus secretion, or epithelial damage. Asthma triggers are diverse, ranging from allergens to emotional upset, and treatment focuses on both immediate relief through bronchodilators and long-term inflammation suppression.
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Related Experiment Video

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Analysis of 18FDG PET/CT Imaging as a Tool for Studying Mycobacterium tuberculosis Infection and Treatment in Non-human Primates
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Tuberculosis mortality: patient characteristics and causes.

Chou-Han Lin, Chou-Jui Lin, Yao-Wen Kuo

  • 1Department of Laboratory Medicine, National Taiwan University College of Medicine and Hospital, No,7, Chung-Shan South Road, Taipei 10002, Taiwan. linalee@ntu.edu.tw.

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Most tuberculosis (TB) deaths are due to other health issues, not TB itself. Early recognition and treatment of TB-related septic shock are crucial for survival, especially in older patients with comorbidities.

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Area of Science:

  • Infectious Diseases
  • Pulmonology
  • Geriatrics

Background:

  • Tuberculosis (TB) remains a significant cause of mortality despite the antibiotic era.
  • Identifying causes and risk factors for death in TB patients is critical.

Purpose of the Study:

  • To determine the causes and risk factors associated with mortality in culture-proven tuberculosis patients.

Main Methods:

  • Retrospective review of medical records for TB cases diagnosed between 2003-2007.
  • Classification of TB deaths into TB-related and non-TB-related groups based on the underlying cause.

Main Results:

  • Overall mortality rate was 12.3% (249/2016 cases) with a mean age at death of 74 years.
  • TB-related deaths accounted for 17.3% (43 cases), often due to septic shock within 20 days.
  • Independent predictors for all TB deaths included malignancy, liver cirrhosis, renal failure, and specific radiographic patterns (miliary, pneumonic).

Conclusions:

  • The majority of deaths in TB patients were attributed to non-TB-related causes.
  • Effective management requires addressing both TB and underlying comorbidities through a multidisciplinary approach, particularly in an aging population.
  • Clinical presentations of TB-related deaths vary, with fulminant septic shock necessitating prompt recognition and treatment to prevent early mortality.