Abstract
167 Background: The only curative treatment for gastric cancer remains surgery neoadjuvant chemoradiotherapy (NACRT) has shown decrease of staging and improve survival. La NACRT has been studied in esophagus cancer and Gastroesophagic Junction cancer but this trials did not include advanced gastric disease. The aim of our study was to investigate the role of Chemoradiotherapy (CTR) and chemotherapy (CT) in the treatment of LAGC. Methods: We retrospectively reviewed the medical records of 108 patients who were treated between December 2010 and January 2015, with preoperatory CRT or chemotherapy preoperatory (CT). Evaluating parameters of resectability, pathological response complete, prognostic with a 3-year follow-up. Results: 108 patients were analyzed, 61 man and 47 women, with median age 55 years, 83 (76.8%) with diffuse, 25 (23.2%) intestinal histology, however 83 patients (76.8%) had component of signet ring cells. Of the 108 patients, 41 (38%) received chemotherapy and 67 (62%) received CRT preoperative. R0 radical surgery was possible in 41 patients of which 24.3% (10/41) were in the group of CT and 46% (31/67) CRT group. Radiological progression was documented in 8 (19.5%) patients with CT and 11 (16.4%) with CRT. 7 patients were considered inoperable and 17 unresectable at the end of the preoperative treatment. The carcinomatosis was documented during the surgery in 11 and 12 patients in the CT or CRT group respectively. 10 patients developed complications gastrointestinal and hematologic to the treatment with CT and 23 patients with CRT, which 4 patients in CRT needed reoperation post-surgery. Any patient in the chemotherapy group reached complete pathologic response while of the CRT group achieved 5 complete pathological responses. Medium-3 years follow-up survival rate was 11% in the group treated with CT and 23% with CRT. Conclusions: Our revision showed a high rate of pathologic response and survival in patients with LAGC that received CRT preoperative followed by gastrectomy. On the other hand R0 resection has been reported to be a predictive factor for survival in this study were found more patients with resectable tumor after CRT preoperative.
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