TY - JOUR PB - Elsevier BV JF - European Journal of Cancer A1 - Kroese, Tiuri E A1 - Bronzwaer, Sebastiaan A1 - van Rossum, Peter SN A1 - Schoppman, Sebastian F A1 - Deseyne, Pieter RAJ A1 - van Cutsem, Eric A1 - Haustermans, Karin A1 - Nafteux, Philippe A1 - Thomas, Melissa A1 - Obermannova, Radka A1 - Mortensen, Hanna R A1 - Nordsmark, Marianne A1 - Pfeiffer, Per A1 - Elme, Anneli A1 - Adenis, Antoine A1 - Piessen, Guillaume A1 - Bruns, Christiane J A1 - Lordick, Florian A1 - Gockel, Ines A1 - Moehler, Markus A1 - Gani, Cihan A1 - Liakakos, Theodore A1 - Reynolds, John V A1 - Morganti, Alessio G A1 - Rosati, Riccardo A1 - Castoro, Carlo A1 - Cellini, Francesco A1 - D'Ugo, Domenico A1 - Roviello, Franco A1 - Bencivenga, Maria A1 - de Manzoni, Giovanni A1 - van Berge Henegouwen, Mark I A1 - Hulshoff, Maarten CCM A1 - van Dieren, Jolanda A1 - Vollebergh, Marieke A1 - van Sandick, Johanna W A1 - Jeene, Paul A1 - Muijs, Christel A1 - Slingerland, Marije A1 - Voncken, Francine EM A1 - Hartgrink, Henk A1 - Creemers, Geert-Jan A1 - van der Sangen, Maurice JC A1 - Nieuwenhuijzen, Grard AP A1 - Berbee, Maaike A1 - Verheij, Marcel A1 - Wijnhoven, Bas A1 - Beerepoot, Laurens V A1 - Mohammad, Nadia Haj A1 - Mook, Stella A1 - Ruurda, Jelle P A1 - Kolodziejczyk, Piotr A1 - Polkowski, Wojciech P A1 - Wyrwicz, Lucjan A1 - Alsina, Maria A1 - Tabernero, Josep A1 - Pera, Manuel A1 - Kanonnikoff, Tania F A1 - Cervantes, Andrés A1 - Nilsson, Magnus A1 - Monig, Stefan A1 - Wagner, Anna D A1 - Guckenberger, Matthias A1 - Griffiths, Ewen A A1 - Smyth, Elizabeth A1 - Hanna, George B A1 - Markar, Sheraz A1 - Chaudry, M Asif A1 - Hawkins, Maria A A1 - Cheong, Edward A1 - van Laarhoven, Hanneke WM A1 - van Hillegersberg, Richard A1 - OMEC collaborators KW - Esophageal cancer KW - Gastric cancer KW - Metastasectomy KW - Metastasis KW - Oligometastasis KW - Stereotactic body radiotherapy VL - 204 N1 - © 2024 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). N2 - INTRODUCTION: The OligoMetastatic Esophagogastric Cancer (OMEC) project aims to provide clinical practice guidelines for the definition, diagnosis, and treatment of esophagogastric oligometastatic disease (OMD). METHODS: Guidelines were developed according to AGREE II and GRADE principles. Guidelines were based on a systematic review (OMEC-1), clinical case discussions (OMEC-2), and a Delphi consensus study (OMEC-3) by 49 European expert centers for esophagogastric cancer. OMEC identified patients for whom the term OMD is considered or could be considered. Disease-free interval (DFI) was defined as the time between primary tumor treatment and detection of OMD. RESULTS: Moderate to high quality of evidence was found (i.e. 1 randomized and 4 non-randomized phase II trials) resulting in moderate recommendations. OMD is considered in esophagogastric cancer patients with 1 organ with ? 3 metastases or 1 involved extra-regional lymph node station. In addition, OMD continues to be considered in patients with OMD without progression in number of metastases after systemic therapy. 18F-FDG PET/CT imaging is recommended for baseline staging and for restaging after systemic therapy when local treatment is considered. For patients with synchronous OMD or metachronous OMD and a DFI ? 2 years, recommended treatment consists of systemic therapy followed by restaging to assess suitability for local treatment. For patients with metachronous OMD and DFI > 2 years, upfront local treatment is additionally recommended. DISCUSSION: These multidisciplinary European clinical practice guidelines for the uniform definition, diagnosis and treatment of esophagogastric OMD can be used to standardize inclusion criteria in future clinical trials and to reduce variation in treatment. ID - discovery10191815 UR - http://dx.doi.org/10.1016/j.ejca.2024.114062 SN - 0959-8049 Y1 - 2024/06// TI - European clinical practice guidelines for the definition, diagnosis, and treatment of oligometastatic esophagogastric cancer (OMEC-4) AV - public ER -