RT Journal Article T1 V Spanish Consensus Conference on Helicobacter pylori infection treatment. A1 Gisbert, Javier P A1 Alcedo, Javier A1 Amador, Javier A1 Bujanda, Luis A1 Calvet, Xavier A1 Castro-Fernández, Manuel A1 Fernández-Salazar, Luis A1 Gené, Emili A1 Lanas, Ángel A1 Lucendo, Alfredo J A1 Molina-Infante, Javier A1 Nyssen, Olga P A1 Pérez-Aisa, A A1 Puig, Ignasi AB Helicobacter pylori infection is very common in the Spanish population and represents the main cause of chronic gastritis, peptic ulcer, and gastric cancer. The last iteration of Spanish consensus guidelines on H. pylori infection was conducted in 2016. Recent changes in therapeutic schemes along with increasing supporting evidence were key for developing the V Spanish Consensus Conference (May 2021). Fourteen experts performed a systematic review of the scientific evidence and developed a series of recommendations that were subjected to an anonymous Delphi process of iterative voting. Scientific evidence and the strength of the recommendation were classified using GRADE guidelines. An eradication therapy, when prescribed empirically, is considered acceptable when it reliably achieves, or preferably surpass, 90% cure rates. Currently, only quadruple therapies (with or without bismuth) and generally lasting 14 days, accomplish this goal in first- and second-line therapies. A non-bismuth quadruple concomitant regimen (proton pump inhibitor, clarithromycin, amoxicillin, and metronidazole) or a quadruple bismuth-based combination (proton pump inhibitor, bismuth, tetracycline, and metronidazole), are recommended as first-line regimens. Rescue therapies after eradication failure and management of H. pylori infection in peptic ulcer disease were also reviewed. SN 1130-0108 YR 2021 FD 2021 LK https://hdl.handle.net/10668/26774 UL https://hdl.handle.net/10668/26774 LA en DS RISalud RD Sep 19, 2025