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Related Experiment Videos

Pulmonary function and immunologic abnormalities in miliary tuberculosis.

S K Sharma1, J N Pande, Y N Singh

  • 1Department of Medicine, All India Institute of Medical Sciences, New Delhi.

The American Review of Respiratory Disease
|May 1, 1992
PubMed
Summary

Miliary tuberculosis (MTB) patients show lymphocytic alveolitis and altered immune markers in blood and lung fluid. These changes persist after treatment, suggesting potential roles for corticosteroids.

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Area of Science:

  • Pulmonology
  • Immunology
  • Infectious Diseases

Background:

  • Miliary tuberculosis (MTB) is a severe form of tuberculosis affecting multiple organs.
  • Understanding the pulmonary and immunological aspects of MTB is crucial for effective treatment.

Purpose of the Study:

  • To investigate pulmonary function, bronchoalveolar lavage (BAL) findings, and immune responses in patients with miliary tuberculosis.
  • To assess the persistence of these changes after standard chemotherapy.

Main Methods:

  • Pulmonary function tests and BAL were performed on patients with MTB.
  • Arterial blood gas analysis, lymphocyte subset analysis, immunoglobulin levels, serum complement (C3), and BAL fluid fibronectin were measured.
  • Follow-up assessments were conducted after 9 months of chemotherapy.

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Main Results:

  • Patients exhibited mild restrictive ventilatory defects, hypoxemia, and hypocapnia.
  • BAL revealed lymphocytic alveolitis with decreased peripheral helper lymphocytes and increased BAL fluid helper lymphocytes.
  • Elevated levels of immunoglobulins (IgG, IgA, IgM), serum complement (C3), and BAL fluid fibronectin were observed.
  • Lymphocytic alveolitis and elevated IgG/IgA persisted 9 months post-chemotherapy.

Conclusions:

  • Miliary tuberculosis is associated with significant pulmonary and immunological alterations, including lymphocytic alveolitis.
  • These inflammatory markers persist despite standard antituberculosis treatment.
  • Corticosteroid addition to therapy warrants consideration for managing MTB-related alveolitis.