Detecting latent tuberculosis in compromised patients.

Abstract:

PURPOSE OF REVIEW:The detection of latent tuberculosis infection (LTBI) in different categories of compromised patients is reviewed with focus on the role of strategies incorporating immunodiagnostic tests and analysis of epidemiological and clinical risk factors. RECENT FINDINGS:The development of active tuberculosis (TB) is increased in compromised patients and is closely related to determinants for disease reactivation or newly acquired TB infection. A targeted detection of LTBI in these high-risk groups should be performed especially if preventive treatment is planned. The performance of immunodiagnostic tests is highly variable among different groups of immunocompromised individuals. Findings of cross-sectional studies indicate a better diagnostic accuracy of interferon-γ release assays over the tuberculin skin test. The critical issue is that in low-incidence countries, the positive and negative predictive values of any of immunodiagnostic tests were very poor. A targeted testing process involving analysis of TB risk factors increases the predictive positive values of immunodiagnostic tests and may improve LTBI detection. SUMMARY:The LTBI detection in immunocompromised patients is a challenge. The development of new immunological biomarkers and integrated clinical and epidemiological strategies are needed to identify LTBI in compromised individuals and to plan preventive chemotherapies in those at risk of developing active TB.

journal_name

Curr Opin Infect Dis

authors

Sauzullo I,Vullo V,Mastroianni CM

doi

10.1097/QCO.0000000000000158

subject

Has Abstract

pub_date

2015-06-01 00:00:00

pages

275-82

issue

3

eissn

0951-7375

issn

1473-6527

journal_volume

28

pub_type

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