RT Journal Article SR Electronic T1 Screening and Monitoring of Latent Tubercular Infection in Patients Taking Tumor Necrosis Factor-α Blockers for Psoriatic Arthritis JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 82 OP 85 DO 10.3899/jrheum.120252 VO 89 A1 ALESSANDRO SANDUZZI A1 MARIALUISA BOCCHINO A1 MARIANGELA ATTENO A1 LUISA COSTA A1 ANTONIO PONTICIELLO A1 ALESSANDRO MATARESE A1 ANGELO SPANÒ A1 VINCENZO BRUNER A1 ROSARIO PELUSO A1 MARIA MADDALENA AQUINO A1 ANTONIO DEL PUENTE A1 RAFFAELE SCARPA YR 2012 UL http://www.jrheum.org/content/89/82.abstract AB Patients with arthritis who need treatment with biologics are carefully screened for possible previous exposure to tuberculosis to detect any latent tubercular infection (LTBI). The traditional method of screening for LTBI is not specific, because positivity could also depend on infection by atypical mycobacteria and bacillus Calmette-Guerin vaccination. In addition, the screening does not show high sensitivity, frequently presenting a false negativity because of immunosuppression caused by drugs used for arthritis. Recently, interferon-γ release assays (IGRA) have been used to screen LTBI with more sensitivity and specificity before treatment with anti-tumor necrosis factor-α drugs. Moreover, in our experience, IGRA are potentially useful in monitoring LTBI during biologic therapy.