Interferon-gamma release assay versus tuberculin skin test for latent tuberculosis infection among HIV patients in Brazil
Braz. j. infect. dis
; 20(1): 69-75, Jan.-Feb. 2016. tab, graf
Artículo
en Inglés
| LILACS
| ID: lil-776465
Biblioteca responsable:
BR1.1
ABSTRACT
Abstract Setting Patients HIV+ attending in a reference clinic, Southern Brazil. Objective To compare the interferon-gamma-release assay (IGRA – QuantiFERON® TB Gold In-Tube) with the tuberculin skin test (TST – PPD-Rt 23) for latent tuberculosis infection (LTBI) in patients with HIV. Design Cohort study. Patients were simultaneously submitted to the TST and blood collection for the IGRA. Results A total of 140 subjects were included. Nine (6.4%) were IGRA+/TST+, 12 (8.6%) were IGRA+/TST−, 4 (3%) were IGRA−/TST+, and 115 (82%) IGRA−/TST−. There was poor agreement between tests (kappa = 0.2), and no correlation between these results and CD4+ T lymphocyte counts. During follow-up, one patient with negative results on both tests died from sepsis, and another with discordant results (IGRA+/TST−) exhibited TST seroconversion. Compared to the TST, IGRA showed a sensitivity and specificity of 69% and 90%, respectively. The IGRA detected 8% more positive results than the TST. All patients were followed up for 2 years. Conclusion The higher accuracy of the IGRA would result in LTBI treatments being administered to patients who would have otherwise been overlooked, decreasing the number of active tuberculosis cases. The long-term survival of HIV carriers requires further evaluation.
Texto completo:
Disponible
Colección:
Bases de datos internacionales
Contexto en salud:
Enfermedades Desatendidas
Problema de salud:
Enfermedades Desatendidas
/
Tuberculosis
Base de datos:
LILACS
Asunto principal:
Prueba de Tuberculina
/
Infecciones por VIH
/
Tuberculosis Latente
/
Ensayos de Liberación de Interferón gamma
Tipo de estudio:
Estudio diagnóstico
/
Estudio de etiología
/
Estudio de incidencia
/
Estudio observacional
/
Estudio pronóstico
/
Factores de riesgo
Límite:
Adulto
/
Femenino
/
Humanos
/
Masculino
País/Región como asunto:
America del Sur
/
Brasil
Idioma:
Inglés
Revista:
Braz. j. infect. dis
Asunto de la revista:
Enfermedades Transmisibles
Año:
2016
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Universidade Federal do Paraná/BR