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Follow-up Testing of Interferon-Gamma Release Assays Are Useful in Ankylosing Spondylitis Patients Receiving Anti-Tumor Necrosis Factor Alpha for Latent Tuberculosis Infection

Title
Follow-up Testing of Interferon-Gamma Release Assays Are Useful in Ankylosing Spondylitis Patients Receiving Anti-Tumor Necrosis Factor Alpha for Latent Tuberculosis Infection
Author
성일훈
Keywords
Ankylosing Spondylitis; Interferon-Gamma Release Assay; Anti-Tumor Necrosis Factor; Latent Tuberculosis Infection
Issue Date
2014-08
Publisher
KOREAN ACAD MEDICAL SCIENCES, 302 75 DONG DU ICHON, DONG YONGSAN KU, SEOUL 140 031, SOUTH KOREA
Citation
Journal of Korean medical science, 2014, 29(8), p1090 ~ 1093
Abstract
We evaluated the utility of follow-up interferon-gamma release assays (IGRAs) for the diagnosis of reactivation of latent tuberculosis infection (LTBI) or new tuberculosis in ankylosing spondylitis (AS) patients receiving anti-tumor necrosis factor alpha (anti-TNF alpha). The study participants (n = 127) had a negative IGRA screening before receiving anti-TNF alpha and were evaluated by follow-up IGRA. We retrospectively examined data of the subjects according to age, gender, tuberculosis prophylaxis, concomitant medications, IGRA conversion and anti-TNF alpha, including type and treatment duration. The median duration of anti-TNF alpha was 21.5 months, and the median age was 35.3 yr. Of the 127 patients, IGRA conversion was found in 10 patients (7.9%). There was no significant variation between IGRA conversion rate and any risk factors except for age. IGRA conversion rate was not significantly different between AS and rheumatoid arthritis (P = 0.12). IGRA conversion was observed in AS patients receiving anti-TNF alpha in Korea. A follow-up IGRA test can be helpful for identifying LTBI or new tuberculosis in AS patients receiving anti-TNF alpha.
URI
https://synapse.koreamed.org/DOIx.php?id=10.3346/jkms.2014.29.8.1090http://hdl.handle.net/20.500.11754/47679
ISSN
1011-8934
DOI
10.3346/jkms.2014.29.8.1090
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COLLEGE OF MEDICINE[S](의과대학) > MEDICINE(의학과) > Articles
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