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Related Experiment Videos

Fiberbronchoscopy in smear-negative miliary tuberculosis.

K Pant1, R Chawla, P S Mann

  • 1Clinical Research Centre, Vallabhbhai Patel Chest Institute, University of Delhi, India.

Chest
|May 1, 1989
PubMed
Summary

Fiberbronchoscopy aids rapid diagnosis of smear-negative miliary tuberculosis. This safe procedure, using brush smears and biopsies, achieved a 73% diagnosis rate in patients.

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Area of Science:

  • Pulmonology
  • Infectious Diseases
  • Medical Diagnostics

Background:

  • Miliary tuberculosis presents diagnostic challenges, especially in smear-negative cases.
  • Early diagnosis is crucial for effective treatment and improved patient outcomes.

Purpose of the Study:

  • To evaluate the diagnostic yield and safety of fiberbronchoscopy in smear-negative miliary tuberculosis.
  • To assess the contribution of brush smears, bronchial aspirates, and transbronchial lung biopsies to rapid diagnosis.

Main Methods:

  • Fiberbronchoscopy with brush smears, bronchial aspirates, and transbronchial lung biopsies performed on 22 patients.
  • Microscopic examination of smears and histopathologic study of biopsy specimens.
  • Bacteriological culture of aspirate and biopsy samples.

Main Results:

  • A definitive diagnosis of tuberculosis was achieved in 16 out of 22 patients (73%).
  • Rapid diagnosis was established in 14 patients using various combinations of brush smears, aspirate smears, and biopsy histopathology.
  • Bronchial aspirate culture was the sole positive diagnostic method in two patients.

Conclusions:

  • Fiberbronchoscopy is a valuable and safe tool for the rapid diagnosis of smear-negative miliary tuberculosis.
  • Histopathology of transbronchial lung biopsies and direct smear examination of brush/aspirate samples are key diagnostic methods.
  • The procedure facilitates timely initiation of treatment for this severe form of tuberculosis.

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