Journal of Gastric Cancer

  • 제20권3호
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  • Pages.233-244
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  • 2020
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  • 2093-582X(pISSN)
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  • 2093-5641(eISSN)
대한위암학회 (The Korean Gastric Cancer Association)
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Advantages of ypTNM Staging in Post-surgical Prognosis for Initially Unresectable or Stage IV Gastric Cancers

  • Jeong, Gyu-Seong (Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Lee, In-Seob (Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Park, Young-Soo (Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Kim, Beom-Su (Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Yoo, Moon-Won (Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Yook, Jeong-Hwan (Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Kim, Byung-Sik (Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine)
  • 투고 : 2020.01.01
  • 심사 : 2020.05.01
  • 발행 : 2020.09.30
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초록

Purpose: For unresectable or initially metastatic gastric cancer, conversion surgery (CVS), after systemic chemotherapy, has received attention as a treatment strategy. This study evaluated the prognostic value of ypTNM stage and the oncologic outcomes in patients receiving CVS. Materials and Methods: A retrospective review of clinicopathologic findings and oncologic outcomes of 116 patients who underwent CVS with curative intent, after combination chemotherapy, between January 2000 and December 2015, has been reported here. Results: Twenty-six patients (22.4%) underwent combined resection of another organ and 12 patients received para-aortic lymphadenectomy (10.3%). Pathologic complete remission (CR) was confirmed in 11 cases (9.5%). The median overall survival (OS) and disease-free survival (DFS) times were 35.0 and 21.3 months, respectively. In multivariate analysis, ypTNM stage was the sole independent prognostic factor for DFS (P=0.042). Tumors invading an adjacent organ or involving distant lymph nodes showed better survival than those with peritoneal seeding or solid organ metastasis (P=0.084). Kaplan-Meier curves showed that the 3-year OS rate of patients with pathologic CR and those with CR of the primary tumor but residual node metastasis was 81.8% and 80.0%, respectively. OS was 65.8% for stage 1 patients, 49.8% for those at stage 2, and 36.3% for those at stage 3. Conclusions: The ypTNM staging is a significant prognostic factor in patients who underwent CVS for localized unresectable or stage IV gastric cancers. Patients with locally advanced but unresectable lesions or with tumors with distant nodal metastasis may be good candidates for CVS.

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참고문헌

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