AIM: Primary resistance of H pylori strains to antimicrobials has direct therapeutical implications. For this reason we studied the prevalence of primary resistance of H pylori of Sweden, in a regional setting. MATERIAL AND METHODS: A total of 244 patients referred to our endoscopy unit have been evaluated prospectively for the occurrence of H pylori. Helicobacter pylori infection was established by a positive rapid urease test on an antral biopsy. If positive the biopsy specimen was transferred to a transportmedium for culture on a Skirrow medium. Antimicrobial resistance was evaluated by the E-test. RESULTS: In 109 patients H pylori infection was seen and in all of them the culture was positive. No resistance was seen for amoxycillin and tetracycline. The resistance against metronidazole was 40.3% and and against clarithromycin it was 2.8%. For metronidazole there was a significantly higher resistance seen in women compared to men (53.3% vs 31.2%; p < 0.001). CONCLUSIONS: Primary resistance to metronidazole was higher than expected and over average in Europe. The resistance for clarithromycin is still rare. Further monitoring is mandatory to detect changes in the community.
AIM: Primary resistance of H pylori strains to antimicrobials has direct therapeutical implications. For this reason we studied the prevalence of primary resistance of H pylori of Sweden, in a regional setting. MATERIAL AND METHODS: A total of 244 patients referred to our endoscopy unit have been evaluated prospectively for the occurrence of H pylori. Helicobacter pylori infection was established by a positive rapid urease test on an antral biopsy. If positive the biopsy specimen was transferred to a transportmedium for culture on a Skirrow medium. Antimicrobial resistance was evaluated by the E-test. RESULTS: In 109 patientsH pylori infection was seen and in all of them the culture was positive. No resistance was seen for amoxycillin and tetracycline. The resistance against metronidazole was 40.3% and and against clarithromycin it was 2.8%. For metronidazole there was a significantly higher resistance seen in women compared to men (53.3% vs 31.2%; p < 0.001). CONCLUSIONS: Primary resistance to metronidazole was higher than expected and over average in Europe. The resistance for clarithromycin is still rare. Further monitoring is mandatory to detect changes in the community.
Authors: M E Street; P Caruana; C Caffarelli; W Magliani; M Manfredi; F Fornaroli; G L de'Angelis Journal: Arch Dis Child Date: 2001-05 Impact factor: 3.791
Authors: Daiva Dailidiene; M Teresita Bertoli; Jolanta Miciuleviciene; Asish K Mukhopadhyay; Giedrius Dailide; Mario Alberto Pascasio; Limas Kupcinskas; Douglas E Berg Journal: Antimicrob Agents Chemother Date: 2002-12 Impact factor: 5.191