A prospective longitudinal study evaluating the usefulness of the interferon-gamma releasing assay for predicting active tuberculosis in allogeneic hematopoietic stem cell transplant recipients - 29/06/14
Summary |
Objective |
There is little information on the efficacy of interferon-gamma-releasing assays for predicting subsequent active tuberculosis in hematopoietic stem cell transplant (HCT) recipients.
Methods |
We prospectively enrolled adult patients admitted for allogeneic HCT during a 3-year period in an intermediate-tuberculosis-burden country. All the patients underwent QuantiFERON-TB In-Tube (QFT-TB) assay, while those enrolled during the first 2-year period also received the tuberculin skin test (TST). We observed the development of tuberculosis after HCT for additional 6-month.
Results |
Of the 391 patients, 8 developed tuberculosis. Three of the 45 patients with positive QFT-TB results developed tuberculosis, while 5 of the 346 patients with negative or indeterminate QFT-TB outcomes developed tuberculosis (rate difference 2.7 per 100 person-years, P = 0.05). Of the 169 patients who underwent both TST and QFT-TB, 5 developed tuberculosis after HCT. None of the 19 patients with positive TST developed tuberculosis. Among the 150 patients with negative TST, there were 20 with positive QFT-TB and, of these, 3 developed tuberculosis, while 2 of the 130 patients with negative or indeterminate QFT-TB assays developed tuberculosis (rate difference 6.5 per 100 person-years, P = 0.004).
Conclusion |
Positive QFT-TB assay results predict subsequent development of tuberculosis in HCT recipients in whom latent tuberculosis cannot be detected by TST (NCT01021124).
Le texte complet de cet article est disponible en PDF.Keywords : Tuberculosis, Interferon-gamma releasing assay, Hematopoietic stem cell transplant
Plan
| ☆ | This study was presented in part at the 51st Annual Meeting of the Infectious Diseases Society of America, 2–6 October 2013 (Poster session, abstract no. 1643). |
Vol 69 - N° 2
P. 165-173 - août 2014 Retour au numéro
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