['To evaluate whether antral biopsies are enough for confirming Helicobacter pylori eradication with the "new" one week triple therapies with omeprazole.', '229 duodenal ulcer patients were treated with omeprazole for 7 days plus two antibiotics. Eradication was confirmed with histology (two biopsies from both gastric antrum and body) and 13C-urea breath test one month after the end of therapy.', 'H. pylori eradication was achieved in 76.9% of the patients (95% CI: 71-82%). Histology at antrum was highly reliable to detect eradication failure: in all but in one case in which H. pylori was observed at gastric body, was the microogranism also observed at antrum. Infection prevalences at both locations were not homogeneous (McNemar: 6.4; p < 0.05). Concordance between antral biopsies and breath test for H. pylori diagnosis after therapy was excellent (kappa: 0.91; SE: 0.07), and both prevalences were homogeneous (McNemar: 1.3; p > 0.05).'] Is [ Antral biopsy sufficient to confirm Helicobacter pylori eradication with the `` new '' one-week long triple treatments ]?