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Morgagni P, Bencivenga M, Carneiro F, Cascinu S, Derks S, Di Bartolomeo M, Donohoe C, Eveno C, Gisbertz S, Grimminger P, Gockel I, Grabsh H, Kassab P, Langer R, Lonardi S, Maltoni M, Markar S, Moehler M, Marrelli D, Mazzei MA, Melisi D, Milandri C, Moenig PS, Mostert B, Mura G, Polkowski W, Reynolds J, Saragoni L, Van Berge Henegouwen MI, Van Hillegersberg R, Vieth M, Verlato G, Torroni L, Wijnhoven B, Tiberio GAM, Yang HK, Roviello F, de Manzoni G. International consensus on the management of metastatic gastric cancer: step by step in the foggy landscape : Bertinoro Workshop, November 2022. Gastric Cancer 2024:10.1007/s10120-024-01479-5. [PMID: 38634954 DOI: 10.1007/s10120-024-01479-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 02/05/2024] [Indexed: 04/19/2024]
Abstract
BACKGROUND Many gastric cancer patients in Western countries are diagnosed as metastatic with a median overall survival of less than twelve months using standard chemotherapy. Innovative treatments, like targeted therapy or immunotherapy, have recently proved to ameliorate prognosis, but a general agreement on managing oligometastatic disease has yet to be achieved. An international multi-disciplinary workshop was held in Bertinoro, Italy, in November 2022 to verify whether achieving a consensus on at least some topics was possible. METHODS A two-round Delphi process was carried out, where participants were asked to answer 32 multiple-choice questions about CT, laparoscopic staging and biomarkers, systemic treatment for different localization, role and indication of palliative care. Consensus was established with at least a 67% agreement. RESULTS The assembly agreed to define oligometastases as a "dynamic" disease which either regresses or remains stable in response to systemic treatment. In addition, the definition of oligometastases was restricted to the following sites: para-aortic nodal stations, liver, lung, and peritoneum, excluding bones. In detail, the following conditions should be considered as oligometastases: involvement of para-aortic stations, in particular 16a2 or 16b1; up to three technically resectable liver metastases; three unilateral or two bilateral lung metastases; peritoneal carcinomatosis with PCI ≤ 6. No consensus was achieved on how to classify positive cytology, which was considered as oligometastatic by 55% of participants only if converted to negative after chemotherapy. CONCLUSION As assessed at the time of diagnosis, surgical treatment of oligometastases should aim at R0 curativity on the entire disease volume, including both the primary tumor and its metastases. Conversion surgery was defined as surgery on the residual volume of disease, which was initially not resectable for technical and/or oncological reasons but nevertheless responded to first-line treatment.
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Affiliation(s)
- Paolo Morgagni
- Department of General Surgery, Morgagni-Pierantoni Hospital, Forlì, Italy
| | - Maria Bencivenga
- General and Upper GI Surgery, Department of Surgery, University Hospital Verona, University of Verona, Verona, Italy.
| | - Fatima Carneiro
- Department of Pathology, Centro Hospitalar de São João, Institute of Molecular Pathology and Immunology of the University of Porto (Ipatimup), Porto, Portugal
| | - Stefano Cascinu
- Department of Medical Oncology, Comprehensive Cancer Center, Università Vita-Salute, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Sarah Derks
- Department of Medical Oncology, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Maria Di Bartolomeo
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Claire Donohoe
- Medicinal Chemistry, Trinity Translational Medicine Institute, Trinity Centre for Health Sciences, Trinity College Dublin, The University of Dublin, St. James's Hospital, Dublin 8, Ireland
| | - Clarisse Eveno
- Department of Digestive and Oncologic Surgery, Claude Huriez University Hospital, Centre Hospitalier Universitaire (CHU) Lille, Université de Lille, Lille, France
| | - Suzanne Gisbertz
- Department of Surgery, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Peter Grimminger
- Department of General, Visceral and Transplant Surgery, University Medical Center, University of Mainz, Mainz, Germany
| | - Ines Gockel
- Department of Visceral, Transplant, Thoracic and Vascular Surgery, University Hospital of Leipzig, Leipzig, Germany
| | - Heike Grabsh
- Department of Pathology, GROW School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
- Pathology and Data Analytics, Leeds Institute of Medical Research at St James's, University of Leeds, Leeds, United Kingdom
| | - Paulo Kassab
- Gastric Surgery Division, BP Gastric Surgery Department, Santa Casa Medical School, São Paulo, Brazil
| | - Rupert Langer
- Institute of Pathology and Microbiology, Johannes Kepler University Linz, Altenberger Strasse 69, 4040, Linz, Austria
| | - Sara Lonardi
- Istituto Oncologico Veneto IOV-IRCCS, Padua, Italy
| | - Marco Maltoni
- Unit of Palliative Care, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Forlì-Cesena, Italy
| | - Sheraz Markar
- Surgical Interventional Trials Unit, University of Oxford, Oxford, UK
| | - Markus Moehler
- Department of Medicine, Johannes-Gutenberg University Clinic, Mainz, Germany
| | - Daniele Marrelli
- Unit of General Surgery and Surgical Oncology, Department of Medicine Surgery and Neurosciences, University of Siena, 53100, Siena, Italy
| | - Maria Antonietta Mazzei
- Unit of Diagnostic Imaging, Department of Medical, Surgical and Neuro Sciences and of Radiological Sciences, Azienda Ospedaliero-Universitaria Senese, University of Siena, 53100, Siena, Italy
| | - Davide Melisi
- Medical Oncology at the Department of Medicine, University of Verona, Verona, Italy
| | - Carlo Milandri
- Department of Oncology, San Donato Hospital, 52100, Arezzo, Italy
| | | | - Bianca Mostert
- Department of Medical Oncology, Erasmus MC Cancer Institute, Dr. Molewaterplein 40, 3015 GD, Rotterdam, The Netherlands
| | - Gianni Mura
- Department of Surgery, San Donato Hospital, Arezzo, Italy
| | - Wojciech Polkowski
- Department of Surgical Oncology, Medical University of Lublin, Radziwiłłowska 13 St, 20-080, Lublin, Poland
| | | | - Luca Saragoni
- Pathology Unit, Santa Maria delle Croci Ravenna Hospital, Ravenna, Italy
| | - Mark I Van Berge Henegouwen
- Department of Surgery, Cancer Center Amsterdam, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | | | - Michael Vieth
- Institute of Pathology, Klinikum Bayreuth, Bayreuth, Germany
| | - Giuseppe Verlato
- Department of Diagnostics and Public Health, Section of Epidemiology and Medical Statistics, University of Verona, Verona, Italy
| | - Lorena Torroni
- Department of Diagnostics and Public Health, Section of Epidemiology and Medical Statistics, University of Verona, Verona, Italy
| | - Bas Wijnhoven
- Department of Surgery, Erasmus MC-University Medical Centre Rotterdam, Rotterdam, Netherlands
| | | | - Han-Kwang Yang
- Surgical Department, SNUH National Cancer Center, Seoul, Korea
| | - Franco Roviello
- Unit of General Surgery and Surgical Oncology, Department of Medicine Surgery and Neurosciences, University of Siena, 53100, Siena, Italy
| | - Giovanni de Manzoni
- General and Upper GI Surgery, Department of Surgery, University Hospital Verona, University of Verona, Verona, Italy
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