Oligometastatic Gastric Cancer: Clinical Data from the Meta-Gastro Prospective Register of the Italian Research Group on Gastric Cancer

Medientyp: E-Artikel

Titel: Oligometastatic Gastric Cancer: Clinical Data from the Meta-Gastro Prospective Register of the Italian Research Group on Gastric Cancer

Beteiligte: Bencivenga, Maria; Ministrini, Silvia; Morgagni, Paolo; Mura, Gianni; Marrelli, Daniele; Milandri, Carlo; Mazzei, Maria Antonietta; Berselli, Mattia; Monti, Manlio; Graziosi, Luigina; Reddavid, Rossella; Rosa, Fausto; Solaini, Leonardo; Donini, Annibale; Fumagalli Romario, Uberto; Roviello, Franco; de Manzoni, Giovanni; Tiberio, Guido Alberto Massimo

Erschienen: MDPI AG, 2023

Sprache: Englisch

DOI: 10.3390/cancers16010170

ISSN: 2072-6694

Schlagwörter: Cancer Research ; Oncology

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Beschreibung: Background: Interest in the field of metastatic gastric cancer has grown in recent years, and the identification of oligometastatic patients plays a critical role as it consents to their inclusion in multimodal treatment strategies, which include systemic therapy but also surgery with curative intent. To collect sound clinical data on this subject, The Italian Research Group on Gastric Cancer developed a prospective multicentric observational register of metastatic gastric cancer patients called META-GASTRO. Methods: Data on 383 patients in Meta-Gastro were mined to help our understanding of oligometastatic, according to its double definition: quantitative/anatomical and dynamic. Results: the quantitative/anatomical definition applies to single-site metastases independently from the metastatic site (p < 0.001) to peritoneal metastases with PCI ≤ 12 (p = 0.009), to 1 or 2 hepatic metastases (p = 0.024) and nodal metastases in station 16 (p = 0.002). The dynamic definition applies to a percentage of cases variable according to the metastatic site: 8%, 13.5 and 23.8% for hepatic, lymphatic and peritoneal sites, respectively. In all cases, the OS of patients benefitting from conversion therapy was similar to those of cases deemed operable at diagnosis and operated after neoadjuvant chemotherapy. Conclusions: META-GASTRO supports the two-fold definition of oligometastatic gastric cancer: the quantitative/anatomical one, which accounts for 30% of our population, and the dynamic one, observed in 16% of our cases.

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