Performance of Multidimensional Severity Scoring Systems in Patients with Post-Tuberculosis Bronchiectasis

Area of Science:

• Pulmonology
• Infectious Disease Epidemiology

Background:

• Bronchiectasis is a chronic respiratory condition with various etiologies.
• Post-tuberculosis (post-TB) bronchiectasis represents a significant subset of cases, often associated with increased disease severity.
• Predictive scoring systems are crucial for managing bronchiectasis outcomes.

Purpose of the Study:

• To characterize clinical features and outcomes of patients with post-TB bronchiectasis.
• To evaluate the performance of multidimensional severity scores in predicting mortality, exacerbations, and hospitalizations in bronchiectasis patients.

Main Methods:

• A prospective observational cohort study of 301 bronchiectasis patients.
• Patients categorized into post-TB (43%), idiopathic (25%), and other (32%) etiologies.
• Assessment of Bronchiectasis Severity Index (BSI), FACED, Exa-FACED, and E-FACED scores.

Main Results:

• Post-TB bronchiectasis patients were predominantly female (61%), older (mean age 68±11), and had higher baseline severity scores.
• Pseudomonas aeruginosa colonization occurred in 26% of post-TB patients.
• Five-year outcomes included 52% hospitalization, 58% frequent exacerbations, and 30% mortality.
• All scoring systems predicted 5-year survival; BSI outperformed FACED variants in predicting exacerbations and hospitalizations.

Conclusions:

• Post-TB bronchiectasis is associated with greater severity and poorer outcomes compared to other etiologies.
• Multidimensional scoring systems, particularly the BSI, are valuable tools for predicting outcomes in bronchiectasis.
• BSI demonstrates superior performance in predicting future exacerbations and hospitalizations.