Retrospective Study
Copyright ©2014 Baishideng Publishing Group Inc.
World J Gastroenterol. Nov 21, 2014; 20(43): 16245-16251
Published online Nov 21, 2014. doi: 10.3748/wjg.v20.i43.16245
Table 1 Overall antibiotic resistance of 132 isolated Helicobacter pylori strains isolated from 66 patients n (%)
AntibioticPatients with resistantHelicobacter pylori strains95%CI
Amoxicillin0 (0)
Clarithromycin29 (43.9)0.32-0.56
Metronidazole34 (51.5)0.39-0.64
Tetracycline0 (0)
Levofloxacin15 (22.7)0.09-0.28
Rifabutin3 (4.5)0.01-0.04
Table 2 Antibiotic resistance of Helicobacter pylori strains depending on the number of eradication therapies n (%)
Patients with resistant Helicobacter pylori strains95%CI
No previous eradication therapy (n = 29)
Clarithromycin2 (6.9)0.03-0.18
Metronidazole5 (17.2)0.03-0.34
Levofloxacin4 (13.8)0.02-0.24
One previous eradication therapy (n = 13)
Clarithromycin7 (53.8)0.30-0.98
Metronidazole9 (69.2)0.30-0.98
Levofloxacin3 (23.1)0.04-0.59
Two or more previous eradication therapies (n = 24)
Clarithromycin20 (83.3)0.63-0.97
Metronidazole20 (83.3)0.69-0.99
Levofloxacin8 (33.3)0.09-0.47
Rifabutin3 (12.5)0.04-0.12
Table 3 Antibiotic susceptibility in patients with discordant resistance pattern between antrum and corpus biopsies
PatientsClarithromycinMetronidazoleLevofloxacinRifabutin
Patient 1
AntrumResistantResistantSusceptibleSusceptible
CorpusSusceptibleResistantResistantSusceptible
Patient 2
AntrumSusceptibleResistantSusceptibleSusceptible
CorpusSusceptibleResistantResistantSusceptible
Patient 3
AntrumResistantResistantSusceptibleSusceptible
CorpusSusceptibleSusceptibleSusceptibleSusceptible
Patient 4
AntrumResistantResistantSusceptibleSusceptible
CorpusResistantResistantResistantResistant
Patient 5
AntrumSusceptibleResistantSusceptibleSusceptible
CorpusSusceptibleSusceptibleSusceptibleSusceptible
Patient 6
AntrumResistantResistantSusceptibleSusceptible
CorpusResistantSusceptibleSusceptibleSusceptible
Patient 7
AntrumSusceptibleSusceptibleResistantSusceptible
CorpusSusceptibleSusceptibleSusceptibleSusceptible
Patient 8
AntrumResistantResistantResistantSusceptible
CorpusResistantResistantResistantResistant
Patient 9
AntrumResistantSusceptibleResistantSusceptible
CorpusResistantSusceptibleSusceptibleSusceptible
Patient 10
AntrumResistantResistantSusceptibleSusceptible
CorpusResistantSusceptibleSusceptibleSusceptible