Journals / Toraks Dergisi / 2001 / Cilt: 2 - Sayı: 1

Diagnostic value of a rapid immunochromotographic test (ICT) in patients with active pulmonary tuberculosis

Aktif akciğer tüberkülozlu olgularda hızlı immünokromotografik testin (ICT) tanısal değeri

Pages
80–84
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In conclusion, although ICT does not have a diagnostic value when it is used alone, it is thought that it could be a useful method when it is used together with the bacteriological gold standart methods in the diagnosis of tuberculosis.

📌 3 Key Takeaways

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Objective & Hypothesis:Immunochromotographic test (ICT) is a rapid membrane-based serologic assay using 38-kDA antigen from M. tuberculosis for the diagnosis of tuberculosis.
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Key Findings & Data:In this study, 43 patients with active pulmonary tuberculosis and 20 control patients with pulmonary infections other than tuberculosis were analyzed.
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Conclusion & Impact:In conclusion, although ICT does not have a diagnostic value when it is used alone, it is thought that it could be a useful method when it is used together with the bacteriological gold standart methods in the diagnosis of tuberculosis.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Serolojik testler · Tanı teknikleri · solunum sistemi

Abstract

Immunochromotographic test (ICT) is a rapid membrane-based serologic assay using 38-kDA antigen from M. tuberculosis for the diagnosis of tuberculosis. It is based on the principle that Ig G type of antibodies against M. tuberculosis antigens immobilized beyond a membrane are detected by a colloidal gold particle technique. In this study, 43 patients with active pulmonary tuberculosis and 20 control patients with pulmonary infections other than tuberculosis were analyzed. The patients with active pulmonary tuberculosis were diagnosed by means of bacteriological (positive smear and culture), radiological and clinical signs. Sera from the patients were tested by ICT commercial kits (ICT Diagnostics, Australia) according to the procedure provided by the manufacturer. ICT was found positive in 20 of 43 patients with active pulmonary tuberculosis and was found negative in all of the sera from patients in the control group (n=20). The sensitivity, the spesificity and the accuracy of the test were evaluated as 46.5% , 100% and 63.4%, respectively. However, the higher percentage of positive results has been obtained due to increasing antibody titers as the period of the illness and the severity of the radiological signs increased. In conclusion, although ICT does not have a diagnostic value when it is used alone, it is thought that it could be a useful method when it is used together with the bacteriological gold standart methods in the diagnosis of tuberculosis.

Özet

İmmünokromotografik test (ICT), tüberkülozun serolojik tanısına yönelik bir inceleme yöntemi olup, bir membran boyunca immobilize edilmiş M. tuberculosis 38kDa'luk antijenlerine karşı oluşan IgG tipindeki antikorların kolloidal altın partikül tekniği ile araştırılması ilkesine dayanmaktadır. Bu çalışmada, bakteriyolojik (direkt mikroskobi pozitifliği ve kültür pozitifliği), radyolojik ve klinik olarak tanısı konmuş aktif akciğer tüberkülozlu 43 olgu ile, tüberküloz dışı solunum sistemi hastalığı olan 20 kontrol olgusu incelenmiştir. Hasta serumları bekletilmeksizin ICT (ICT Diagnostics, Avustralya) hazır kitleri kullanılarak prosedüre uygun olarak çalışılmıştır. Kırk üç aktif akciğer tüberkülozlu olgunun 20'sinde pozitif sonuç, kontrol grubunda incelenen 20 olgunun tamamında ise negatif sonuç saptanmıştır. Testin duyarlılığı %46.5, özgüllüğü %100, tanısal doğruluğu %63.4 olarak değerlendirilmiştir. Ayrıca, hastalık süresinin ve radyolojik yaygınlığın artması ile pozitif sonuçların da arttığı tespit edilmiştir. Sonuç olarak, tek başına yeterli tanısal değeri olmamasına karşın, altın standart olarak kabul edilen bakteriyolojik testlerin yanında tanıya yardımcı olarak kullanılabileceği düşünülmektedir.

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Cite This Article

ERER, O. F., BİÇMEN, C., KIRAKLI, C., AKTOĞU, S., FLORAT, N., TİBET, G. (2001). Diagnostic value of a rapid immunochromotographic test (ICT) in patients with active pulmonary tuberculosis. Toraks Dergisi, Cilt: 2 - Sayı: 1, 80–84. https://ajindex.com/articles/367978

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