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Pulmonary Tuberculosis IV01:26

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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.
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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.
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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.
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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.
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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.
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Scientists typically make repeated measurements of a quantity to ensure the quality of their findings and to evaluate both the precision and the accuracy of their results. Measurements are said to be precise if they yield very similar results when repeated in the same manner. A measurement is considered accurate if it yields a result that is very close to the true or the accepted value. Precise values agree with each other; accurate values agree with a true value. 
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Tuberculosis deaths: are we measuring accurately?

Muhammad Atif1, Syed Azhar Syed Sulaiman2, Asrul Akmal Shafie3

  • 1Department of Pharmacy, The Islamia University of Bahawalpur, Punjab, Pakistan ; Discipline of Clinical Pharmacy, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, Malaysia.

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High mortality rates in tuberculosis patients hinder treatment success. Non-tuberculosis related deaths significantly impact overall mortality, suggesting a need to refine World Health Organization criteria for better program evaluation.

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Area of Science:

  • Public Health
  • Infectious Diseases
  • Clinical Medicine

Background:

  • Tuberculosis (TB) treatment success rates are often impacted by patient mortality.
  • The World Health Organization (WHO) has established an 85% treatment success target.
  • Accurate assessment of national TB programs requires precise mortality data.

Purpose of the Study:

  • To evaluate the impact of comorbid conditions on overall mortality rates in pulmonary tuberculosis patients.
  • To assess the accuracy of the WHO's 'died' outcome category in TB treatment evaluations.
  • To determine the proportion of deaths directly attributable to tuberculosis versus other causes.

Main Methods:

  • A cohort of 336 new smear-positive pulmonary tuberculosis patients was followed.
  • Patients received treatment at Penang General Hospital from March 2010 to December 2011.
  • Treatment outcomes were categorized according to WHO guidelines, with 'died' defined broadly.

Main Results:

  • The overall mortality rate was 17.6% (59 out of 336 patients).
  • Of the deaths, 29 were TB-related, and 30 were due to other causes (e.g., cerebrovascular accidents, septicaemia).
  • Excluding non-TB related deaths reduced the mortality proportion to 9.5%.

Conclusions:

  • The current WHO definition of 'died' as a treatment outcome is limited.
  • Non-tuberculosis related comorbidities significantly inflate the apparent mortality rate in TB patients.
  • Refining outcome criteria is necessary for a more objective evaluation of National Tuberculosis Programs.