期刊
ALIMENTARY PHARMACOLOGY & THERAPEUTICS
卷 22, 期 10, 页码 1041-1046出版社
WILEY
DOI: 10.1111/j.1365-2036.2005.02687.x
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Background: Helicobacter pylori eradication is a challenge in patients allergic to penicillin, especially those who have failed a first-eradication trial. Aim: To assess the efficacy and tolerability of H. pylori first-line treatment and rescue options in patients allergic to penicillin. Methods: Prospective single centre study including 40 consecutive treatments administered to patients allergic to penicillin. Therapy regimens: First-line (12 patients) omeprazole, clarithromycin and metronidazole for 7 days; second-line (17 patients) ranitidine bismuth citrate, tetracycline and metronidazole for 7 days; third-line (nine patients) rifabutin, clarithromycin and omeprazole for 10 days; and fourth-line (two patients) levofloxacin, clarithromycin and omeprazole for 10 days. Outcome variable: a negative C-13-urea breath test 8 weeks after completion of treatment. Results: Per-protocol/intention-to-treat eradication rates were: first-line (64/58%); second-line (ranitidine bismuth citrate; 53/47%); third-line (rifabutin; 17/11%) and fourth-line regimen (levofloxacin; 100/100%). Compliance with treatment was generally good, except with the rifabutin-based regimen, which presented adverse effects in 89% of the patients, including four cases of myelotoxicity. Conclusions: H. pylori-infected patients who are allergic to penicillin may be treated with a first-line treatment combining a proton-pump inhibitor, clarithromycin and metronidazole. Rescue options may include a regimen with ranitidine bismuth citrate, tetracycline and metronidazole. A levofloxacin-based rescue regimen (with proton-pump inhibitor and clarithromycin) may also represent an alternative, even when two or more consecutive eradication treatments have previously failed. However, rifabutin + clarithromycin + proton-pump inhibitor regimen is ineffective and poorly tolerated.
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