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Diagnostic Methods Of H. Pylori

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5. Detection methods
There will be a high probability of positive serology or another test when using the test-and-treat strategy in populations with high prevalence of H. pylori regardless of symptomatology (24). Hp laboratory diagnostic methods are divided into two categories. One is invasive test: it is through the endoscope to obtain gastric mucosal tissue as a test material, Conventional endoscopic exam is usually performed to diagnose H. pylori-associated diseases。Culturing of H. pylori from gastric biopsy specimen is a highly specific but less sensitive method, histopathological examination, Histology is usually considered to be the gold standard in the direct detection of H. pylori infection and is also the first method used for …show more content…

Furthermore, rates of antibiotic resistance vary by region, and local resistance data should be used to guide treatment where available (26)., the treatment of Hp infection of drugs such as imidazole such as metronidazole (MTZ), macrolides such as clarithromycin (CLR), β-lactam such as amoxicillin (AMO), quinolones, tetracycline and nitrofurans. amoxicillin resistance is below 3% in America and Europe, but over 60% in Africa. Africa also has the highest rates of resistance to metronidazole (92.4%) and tetracycline (43.9%) (27) Metronidazole resistance is above 50% in much of the world but there are indications that metronidazole resistance may be dropping in northern Europe (28). Within Europe, resistance patterns vary by country and even within a country. For example, the reported clarithromycin resistance rate is 1.5% in Sweden, but 7.5% in Germany and clarithromycin resistance in Italy is lower in the north than in the south (28). Increasing resistance to clarithromycin and levofloxacin has been attributed to widespread use of these antibiotics for respiratory tract and urinary tract infections, respectively. In the (Helicobacter pylori Antimicrobial Resistance Monitoring Program), a resistance pattern showed 29.1% of United States isolates were resistant to one antimicrobial agent and 5% were resistant to two or more antimicrobial agents(29). Multidrug resistance remains low worldwide(27). , offering

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