Efficacy of a “Rescue” Ciprofloxacin-Based Regimen for Eradication of Helicobacter pylori Infection after Treatment Failures

Table 2

Prevalence of antibiotic resistance of H. pylori isolates after treatment with omeprazole/esomeprazole, clarithromycin, and amoxicillin or omeprazole/esomeprazole, clarithromycin, and tinidazole/metronidazole.

Antibiotics	MIC cut off (number of H. pylori-resistant strains)
Amoxicillin	>8 μg/mL (2 > 8 μg/mL)
Clarithromycin	≥2 μg/mL (1 > 256 μg/mL)
Metronidazole	>8 μg/mL (3 > 256 μg/mL)
Ciprofloxacin	≥1 μg/mL (2 > 32 μg/mL)
Tetracycline	≥2 μg/mL (0)

MIC: minimum inhibitory concentration.