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Abstract/Summary
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Background!#!Guidelines do not recommend surgery for patients with oligometastatic disease from esophagogastric adenocarcinoma (EGAC), although some studies suggest a more favorable survival. We analyzed the outcome of oligometastatic EGAC receiving FLOT chemotherapy followed by surgery.!##!Methods!#!The data of patients with either pre-therapeutic, post-neoadjuvant or intraoperative clinical diagnosis of oligometastatic EGAC were extracted from a prospective database of the 2009-2018 treatment period. 48 consecutive patients were identified with oligometastatic disease, who underwent perioperative chemotherapy plus surgery. We retrospectively analyzed surgical outcome and overall survival.!##!Results!#!The overall 5-year survival was 18%. 12 patients (25%) with pre-therapeutic oligometastatic EGAC, who had no histologic vital tumor evidence of metastases after surgery had a survival rate of 48% compared to an 11% 5-year survival rate of 36 patients (75%), who had histologic vital tumor metastatic evidence after FLOT chemotherapy and surgical resection (p = 0.012). The survival rates after R0, R1 and R2 (non-resected metastases) resection were 21% (n = 33), 0% (n = 4) and 17% (n = 11), respectively (p = 0.273).!##!Conclusion!#!Oligometastatic EGAC is associated with poor overall survival even after complete resection of all tumor manifestations. The subgroup of patients with a complete histologic response of metastatic lesions to neoadjuvant FLOT shows 5-year survival rates similar to non-metastatic EGAC. Trial registration Not applicable.
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1000
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Hinweis
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DeepGreen-ID: a784a4f5bc74484da1eb946d894099e2 ; metadata provieded by: DeepGreen (https://www.oa-deepgreen.de/api/v1/), LIVIVO search scope life sciences (http://z3950.zbmed.de:6210/livivo), Crossref Unified Resource API (https://api.crossref.org/swagger-ui/index.html), to.science.api (https://frl.publisso.de/), ZDB JSON-API (beta) (https://zeitschriftendatenbank.de/api/), lobid - Dateninfrastruktur für Bibliotheken (https://lobid.org/resources/search)
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