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Dergiler / Journal of Microbiology and Infectious Diseases / 2015 / Cilt: 5 Sayı: 3

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Diagnostic value of nine nucleic acid amplification test systems for Mycobacterium tuberculosis complex

Gülnur Tarhan
Salih Cesur
Hülya Şimşek
Ismail Ceyhan
Yusuf Ozay
Melike Atasever
Sayfa
103–109
Yayın Tarihi
2016-02-06
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

Löwenstein-Jensen kültür yöntemi altın standart olarak kabul edilerek dokuz NAAT yönteminin duyarlılık ve özgüllükleri hesaplandı.Bulgular: Löwenstein Jensen kültür sonuçları altın standart olarak alındığında; Yayma pozitif örneklerde (COBAS Amplicor MTB (Metot A), GenProbe MTD (Metot B), Cobas TaqMan MTB PCR (Metot C), iCycler iQ RT-PCR (Metot D), TaqMan PCR AB 5700 (Metot E), TaqMan PCR AB7700 (Metot F), LightCycler® 480 RT PCR (Metot G), Rotor Gene RT PCR (Metot H) ve AdvanSure TB/NTM RT PCR (Metot I) yöntemlerinin duyarlılık oranı sırası ile % 98,3, % 93,3, % 96,7, % 100, % 93,3, % 100, % 100, % 100 ve % 100 olarak bulundu.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:Amaç: Bu çalışmada, yayma pozitif balgam örneklerinde ve yayma negatif balgam örneklerinde Mycobacterium tuberculosis kompleks (MTBK)’nin hızlı tanısında dokuz ticari Nükleik Asit Amplifikasyon Test sistemi (NAAT)’nin tanı performansı değerlendirildi.
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Temel Bulgular & Veri:Yöntemler: Çalışma sırasında kullanılan 60 yayma pozitif ve 55 yayma negatif balgam örneği mikroskopik olarak Erlich Zielh Neelsen (EZN) boyama yöntemi ve Löwenstein Jensen (LJ) besiyerinde kültür ile değerlendirildi.
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Sonuç & Katkı:Löwenstein-Jensen kültür yöntemi altın standart olarak kabul edilerek dokuz NAAT yönteminin duyarlılık ve özgüllükleri hesaplandı.Bulgular: Löwenstein Jensen kültür sonuçları altın standart olarak alındığında; Yayma pozitif örneklerde (COBAS Amplicor MTB (Metot A), GenProbe MTD (Metot B), Cobas TaqMan MTB PCR (Metot C), iCycler iQ RT-PCR (Metot D), TaqMan PCR AB 5700 (Metot E), TaqMan PCR AB7700 (Metot F), LightCycler® 480 RT PCR (Metot G), Rotor Gene RT PCR (Metot H) ve AdvanSure TB/NTM RT PCR (Metot I) yöntemlerinin duyarlılık oranı sırası ile % 98,3, % 93,3, % 96,7, % 100, % 93,3, % 100, % 100, % 100 ve % 100 olarak bulundu.
🔬Tür:Makale
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Tüberküloz · polimeraz zincir reaksiyonu · nükleik asit amplifikasyon test

Özet

Amaç: Bu çalışmada, yayma pozitif balgam örneklerinde ve yayma negatif balgam örneklerinde Mycobacterium tuberculosis kompleks (MTBK)’nin hızlı tanısında dokuz ticari Nükleik Asit Amplifikasyon Test sistemi (NAAT)’nin tanı performansı değerlendirildi. Yöntemler: Çalışma sırasında kullanılan 60 yayma pozitif ve 55 yayma negatif balgam örneği mikroskopik olarak Erlich Zielh Neelsen (EZN) boyama yöntemi ve Löwenstein Jensen (LJ) besiyerinde kültür ile değerlendirildi. Löwenstein-Jensen kültür yöntemi altın standart olarak kabul edilerek dokuz NAAT yönteminin duyarlılık ve özgüllükleri hesaplandı.Bulgular: Löwenstein Jensen kültür sonuçları altın standart olarak alındığında; Yayma pozitif örneklerde (COBAS Amplicor MTB (Metot A), GenProbe MTD (Metot B), Cobas TaqMan MTB PCR (Metot C), iCycler iQ RT-PCR (Metot D), TaqMan PCR AB 5700 (Metot E), TaqMan PCR AB7700 (Metot F), LightCycler® 480 RT PCR (Metot G), Rotor Gene RT PCR (Metot H) ve AdvanSure TB/NTM RT PCR (Metot I) yöntemlerinin duyarlılık oranı sırası ile % 98,3, % 93,3, % 96,7, % 100, % 93,3, % 100, % 100, % 100 ve % 100 olarak bulundu. Bu oran yayma negatif örneklerde A, B, D, E, G ve I yöntemleri için % 53,8; C ve H yöntemi için % 38,5; F yöntemi için % 61,5 olarak bulundu. Dokuz NAAT metodu arasında istatistiksel olarak anlamlı fark bulunmadı. (p≥0.05). Yayma negatif balgam örneklerinde özgüllük bütün NAAT yöntemleri için % 100 olarak saptandı. Pozitif saptama oranı yayma negatif örneklerde A, B, D, E, G ve I yöntemleri için % 53,8, C ve H yöntemleri için % 38,5 ve F yöntemi için % 61,5 olarak bulundu. Bu oran yayma pozitif balgam örneklerinde D, F, G, H ve I yöntemleri için % 100; A yöntemi için % 98,3, C yöntemi için % 96,7, B ve E yöntemleri için % 93,3 olarak saptandı. Dokuz NAAT yöntemi arasında istatistiksel olarak anlamlı fark bulunmadı (p≥0.05). Sonuç: Dokuz NAAT yönteminin yayma pozitif örneklerde MTBK tanısında yararlı olabileceği, ancak yayma negatif örneklerde etkin olmadığı sonucuna varıldı

Abstract

Objective: In this study, nine commercial Nucleic Acid Amplification Test Systems (NAATs) were evaluated for diagnostic performance of Mycobacterium tuberculosis complex (MTBC) from smear positive sputum species (SPss) and smear negative sputum specimens (SNss). Methods: Sixty SPss and 55 SNss were examined microscopically by Ehrlich Ziehl Neelsen (EZN) staining method, and also inoculated on Löwenstein Jensen (LJ) medium for culture. The sensitivity and specificity of nine NAATs were calculated according to LJ culture method accepted as gold standard. Results: When LJ culture results were taken as gold standard; the sensitivity rates of method COBAS Amplicor MTB (Method A), GenProbe MTD (Method B), Cobas TaqMan MTB PCR (Method C), iCycler iQ RT PCR (Method D), TaqMan PCR AB 5700 (Method E), TaqMan PCR AB7700 (Method F), LightCycler® 480 RT PCR (Method G), Rotor Gene RT PCR (Method H) and the AdvanSure TB/NTM RT PCR (Method I) for SPss were 98.3 %, 93.3 %, 96.7 %, 100 %, 93.3 %, 100 %, 100 %, 100 % and 100 %, respectively. The sensitivity was 53.84% for the methods A, B, D, E, G and I; 38.46% for the method C and H; 61.5% for the method F for the method I in SNss. There were no statistical significant differences between the nine NAATs (p≥0.05). The specificity was 100% for all nine NAATs in SNss. The positivity rates of methods were 53.8% for methods A, B, D, E, G, I; 38.5% for methods C and H, and 61.5% for method F in SNss. These rates were 100% for D, F, G, H and I; 98.3% for method A; 96.7% for method C; 93,3% for methods B and E in SPss. Statistical analysis showed that there was no statistically significant differences among the nine NAATs (p≥0.05). Conclusion: It is concluded that the nine NAATs might be useful for detecting MTBC from SPss, but not effective for SNss. J Microbiol Infect Dis 2015;5(3): 103-109 Key words: Tuberculosis, polymerase chain reaction, nucleic acid amplification test, smear positive, smear negative, sputum

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Bu Makaleye Atıf Yap

Tarhan, G., Cesur, S., Şimşek, H., Ceyhan, I., Ozay, Y., Atasever, M. (2016). -. Journal of Microbiology and Infectious Diseases, Cilt: 5 Sayı: 3, 103–109. https://doi.org/10.5799/ahinjs.02.2015.03.0186

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