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- W2890132986 abstract "Multidisciplinary therapy for scirrhous gastric cancer: a retrospective analysis and proposal of new treatment strategy Sachio Fushida,1 Jun Kinoshita,1 Katsunobu Oyama,1 Takashi Fujimura,2 Tomoya Tsukada,3 Takahisa Yamaguchi,1 Itasu Ninomiya,1 Tetsuo Ohta1 1Department of Gastroenterological Surgery, Kanazawa University Hospital, Kanazawa, Japan; 2Department of Surgery, Toyama City Hospital, Toyama, Japan; 3Department of Surgery, Toyama Prefectural Central Hospital, Toyama, Japan Background: Scirrhous gastric cancer (SGC) is highly invasive and metastatic because of its interactions with stromal cells, such as fibroblasts and macrophages, and extracellular matrix, leading to a higher incidence of peritoneal metastasis (PM) than other gastric cancers (GCs). Taxane-based intraperitoneal chemotherapy (IPC) is a promising therapy for PM. We retrospectively analyzed outcomes of multidisciplinary therapies that included IPC for SGC. Patients and therapy: Of 1,679 GC patients treated between 1990 and 2012, we analyzed 119 patients who underwent multidisciplinary therapy for SGC. Patients without PM received gastrectomy with lymphadenectomy and resection of involved adjacent organs followed by intraoperative IPC using cisplatin. Patients with PM received chemotherapy using fluorouracil, with or without methotrexate plus IPC using cisplatin before 2000, and S-1 plus IPC using paclitaxel or docetaxel since 2000. Results: Of the 119 patients, 73 (61%) had PM and 63 (53%) had positive peritoneal lavage cytology. Of the 89 gastrectomy patients, 30 (34%) had macroscopic residual tumors (R2). Of the patients treated since 2000, 66 (100%) received S-1 plus taxanes and 44 patients (67%) received taxane-based IPC. Median survival time was significantly longer in the post-2000 group (22.8 months) than in the pre-2000 group (9.5 months). In univariate analysis, lavage cytology, PM, taxane-based IPC, gastrectomy, and R2 resection were significant prognostic factors. However, only R2 resection was an independent prognostic factor in multivariate analysis (hazard ratio: 5.53, 95% CI: 2.05–14.93). Conclusion: As use of taxane-based IPC is not an independent prognostic factor, new multidisciplinary therapies are necessary to avoid R2 resections. Keywords: peritoneal metastasis, intraperitoneal chemotherapy, taxanes" @default.
- W2890132986 created "2018-09-27" @default.
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- W2890132986 date "2018-09-01" @default.
- W2890132986 modified "2023-10-04" @default.
- W2890132986 title "Multidisciplinary therapy for scirrhous gastric cancer: a retrospective analysis and proposal of new treatment strategy" @default.
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- W2890132986 doi "https://doi.org/10.2147/cmar.s174950" @default.
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