The Evolution of Helicobacter Pylori Antibiotics Resistance Over 10 Years in GreeceKaramanolis G.P.a · Daikos G.L.b · Xouris D.a · Goukos D.a · Delladetsima I.c · Ladas S.D.a
aAcademic Department of Gastroenterology, b1st Department of Propaedeutic Medicine, and c1st Pathology Department, Athens Medical School, ‘Laikon' GH, Athens, Greece
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Background: Increasingly, over time, antibiotic resistance is considered a problem for the efficacy of H. pylori eradication treatment. The aim of our study was to evaluate the changes in clarithromycin and levofloxacin resistance of H. pylori strains in Greek patients in two different time periods (in 2000 and in 2010). Methods: Gastric biopsies of consecutive H. pylori-positive patients were investigated retrospectively. Mutations in H. pylori 23S rRNA and gyrA genes associated with resistance to clarithromycin and quinolones, respectively, were determined by allelic specific polymerase chain reaction. Results: In the first time period (2000), H. pylori resistance patterns were evaluated in 50 and in the second period (2010) in 57 patients. During the first time period 30 and 0% of patients were infected with clarithromycin- or quinolone-resistant strains, respectively. In the second time period (2010), the percentage of patients infected with clarythromycin or quinolone resistance strains increased to 42 and 5.3%, respectively. Conclusions: Our study showed an increase in the prevalence of both clarithromycin and quinolones resistance of H. pylori. Although the resistance rate to quinolones increased over the years, it is relatively low justifying its use for the eradication of H. pylori infections. © 2015 S. Karger AG, Basel
© 2015 S. Karger AG, Basel
Article / Publication Details
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