Journals / İstanbul Medical Journal / 2018 / Cilt: 19 - Sayı: 2

Comparison of culture, Real- time-PCR, ELISA, and histopathological examination methods for identification of Helicobacter pylori

Helicobacter pylori Tanısında Kültür, Real-Time-PCR, Elisa ve Histopatolojik İnceleme Yöntemlerinin Karşılaştırılması

Pages
138–142
Publication Date
2022-10-19
DOI
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AI Summary & Key Takeaways

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

The diagnostic method of choice shouldbe easy and applicable to all age groups.

📌 3 Key Takeaways

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Objective & Hypothesis:Introduction: There are several methods used for the diagnosis of Helicobacterpylori infections, and there is an increasing demand for theuse of non-invasive, more rapid tests.
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Key Findings & Data:The aim of the present study wasto compare different diagnostic methods.Methods: A total of 87 patients who had undergone esophagogastroduodenoscopywere included in the study.
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Conclusion & Impact:The diagnostic method of choice shouldbe easy and applicable to all age groups.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Introduction: There are several methods used for the diagnosis of Helicobacterpylori infections, and there is an increasing demand for theuse of non-invasive, more rapid tests. The aim of the present study wasto compare different diagnostic methods.Methods: A total of 87 patients who had undergone esophagogastroduodenoscopywere included in the study. Biopsy samples obtainedfrom these patients were used for culture, real-time polymerase chainreaction (RT-PCR), and histopathological examination. Stool sampleswere also collected from these patients and were tested using the Helicobacterpylori stool antigen (HpSA) kit. Histopathological examinationwas accepted as the gold standard test.Results: H. pylori was identified by histological examination in 77/87(87.5%) patients, whereas it was negative in 10/87 (12.5%) patients. Furthermore,positive results were obtained in 55 (63.2%), 71 (81.6%), and 77(87.5%) patients using the culture method, HpSA analysis, and RT-PCR method,respectively. The sensitivity and specificity of culture, HpSA, and PCRtests were determined as 71.4% and 100%, 87% and 60%, and 97.4% and80%, respectively. Antibiotic susceptibility tests were performed on 48 outof the 55 culture positive samples. Resistance to clarithromycin was foundin 28 (58.3%), metronidazole in 14 (29.2%), and levofloxacin in 4 (8.3%) ofthe isolates. Resistance to amoxicillin and tetracycline was not observed.Conclusion: There are currently several invasive and non-invasive diagnostictests for the detection of H. pylori infections. Each test has someadvantages and disadvantages. The diagnostic method of choice shouldbe easy and applicable to all age groups.

Özet

Amaç: Helicobacter pylori enfeksiyonlarının tanısında çeşitli yöntemler kullanılmaktadır. Invazif olmayan, daha hızlı testlerin kullanımı için artan bir talep vardır. Bu çalışmanın amacı farklı tanı yöntemlerini karşılaştırmaktır. Yöntemler: Çalışma özofagogastroduodenoskopi uygulanan 87 hastayı kapsamaktadır. Bu hastalardan alınan biyopsi örneklerinden kültür, Real-time PCR ve histopatolojik inceleme yapıldı. Ayrıca tüm hastalardan dışkı örnekleri de alınıp H.pylori dışkı antijen testi (HpSA) uygulandı. Histopatolojik inceleme altın standart test olarak kabul edildi. Bulgular: Histopatolojik inceleme sonucu; 87 hastanın 77’si H. pylori pozitif (%87.5), 10’u ise (%12.5) negatif olarak belirlenmiştir. Kültür, HpSA ve Real-time PCR’nin duyarlılık ve özgüllükleri sırasıyla %71.4 ve %100, %87 ve %60, %97.4 ve % 80 olarak saptanmıştır. Kültür yöntemiyle pozitif saptanan 55 örneğin 48’inde antibiyotik duyarlılık testleri çalışılmıştır. Klaritromisin direnci 28 (% 58.3), metronidazol direnci 14 (% 29.2) ve levofloksasin direnci 4 (% 8.3) izolatta saptandı. Hiçbir izolatta amoksisilin ve tetrasiklin direnci saptanmadı. Sonuç: Günümüzde, Helicobacter pylori enfeksiyonlarının tanısında invazif olan ve invazif olmayan çeşitli tanı testleri kullanılmaktadır. Her testin bazı avantajları ve dezavantajları vardır. Seçilen tanı yöntemi, tüm yaş gruplarına kolaylıkla uygulanabilir olmalıdır.

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Cite This Article

ŞENER, B., ÖZEN, H., SÖKMENSÜER, C., ALP, A., ORHAN, D., KAV, T., MAÇİN, S., AKYÖN, Y. (2022). Comparison of culture, Real- time-PCR, ELISA, and histopathological examination methods for identification of Helicobacter pylori. İstanbul Medical Journal, Cilt: 19 - Sayı: 2, 138–142. https://ajindex.com/articles/552008

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