Perkembangan Pemeriksaan Interferon-Gamma Release Assay (IGRA) dengan Metode T-SPOT.TB serta Aspek Klinis Pelaporan Hasil

  • Dewi J
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Abstract

Latent tuberculosis infection (LTBI) screening and its treatment play important role in controlling tuberculosis (TB). Healthcare workers are known to be at high risk of latent TB infection. CDC suggests that every healthcare service should have TB controlling program. CDC recommends IGRA test for people who have history of contact with atypical mycobacteria patiens, screening in pregnancy, healthcare worker screening, and serial evaluation for Mycobacterium tuberculosis (MTB) infection. IGRA test kits that are commercially available are QFT and T-SPOT.TB. Term “indeterminate” is used as a borderline value in QFT, but in T-SPOT.TB, it means the result is invalid. Term "borderline zone" is used in T-SPOT.TB, but not in QFT. T-SPOT.TB uses borderline zone which is designed to reduce uncertainty result in narrow range around single cut-off point. There are still no recommendations to use IGRA test for therapeutic monitoring.Screening dan pengobatan latent tuberculosis infection (LTBI) memainkan peranan penting dalam mengontrol tuberculosis (TB). Centers for Disease Prevention and Control (CDC) mengingatkan adanya risiko transmisi TB bagi para petugas kesehatan dan menganjurkan setiap pelayanan kesehatan memiliki program kontrol infeksi TB. CDC merekomendasikan penggunaan pemeriksaan Interferon-Gamma Release Assay (IGRAs) pada orang yang memiliki riwayat kontak dengan penderita atypical mycobacteria, pemeriksaan selama kehamilan, screening petugas kesehatan, serta evaluasi serial infeksi Mycobacterium tuberculosis (MTB). Saat ini tersedia kit komersial untuk pemeriksaan IGRA yaitu QFT dan T-SPOT.TB. Penyebutan indeterminate digunakan pada QFT sebagai nilai borderline, sedangkan pada T-SPOT.TB digunakan untuk hasil invalid. Hanya T-SPOT.TB yang menggunakan zona borderline yang didesain untuk mengurangi ketidakpastian hasil pada rentang yang sempit di sekitar titik cut-off tunggal. Masih belum ada rekomendasi terkait penggunaan pemeriksaan IGRA untuk memantau keberhasilan terapi.

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APA

Dewi, J. (2020). Perkembangan Pemeriksaan Interferon-Gamma Release Assay (IGRA) dengan Metode T-SPOT.TB serta Aspek Klinis Pelaporan Hasil. MEDICINUS, 33(1), 33–42. https://doi.org/10.56951/medicinus.v33i1.5

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