title: Analysis of the prognostic factors and evaluation of surgical treatment for synchronous liver metastases from gastric cancer.
abstract: OBJECTIVE
  Whether or not a synchronous resection of liver metastases from gastric cancer provides a survival benefit has been a key issue. We identify the significant prognostic factors and clarify the beneficial effect on the survival of liver surgical treatment.
  
  
  METHODS
  We reviewed 72 patients who underwent a gastrectomy for gastric cancer with synchronous liver metastases and classified the liver metastases into three grades, such as H1: metastases were limited to one of the lobes, H2: there were a few scattered metastases in both lobes, and H3: there were numerous scattered metastases.
  
  
  RESULTS
  H1, 2 metastases, and an absence of peritoneal dissemination (P0) were significantly independent prognostic factors for liver metastases of gastric cancer. In addition, the cumulative 1 and 5-year survival rates of liver surgical treatment (hepatic resection and/or microwave coagulation therapy) were 80.0% and 60.0%, whereas the survival rates for non-hepatic surgical treatment were 36.4% and 0% in 26 patients with H1, 2, and P0. In those patients, the radical operation, the solitary metastatic liver tumor, and no-distant lymph node metastases were independent prognostic determinants of survival.
  
  
  CONCLUSIONS
  The radical operation including the surgical treatment for metastatic liver tumors should be performed to improve the prognosis in gastric cancer patients with synchronous H1, 2, and P0.
authors.affiliation: Second Department of Surgery, Wakayama Medical University, School of Medicine, 811-1 Kimiidera, Wakayama, 641-8510, Japan.
authors.forename: Kentaro
authors.initials: K
authors.lastname: Ueda
authors.forename: Makoto
authors.initials: M
authors.lastname: Iwahashi
authors.forename: Mikihito
authors.initials: M
authors.lastname: Nakamori
authors.forename: Masaki
authors.initials: M
authors.lastname: Nakamura
authors.forename: Teiji
authors.initials: T
authors.lastname: Naka
authors.forename: Koichiro
authors.initials: K
authors.lastname: Ishida
authors.forename: Toshiyasu
authors.initials: T
authors.lastname: Ojima
authors.forename: Hiroki
authors.initials: H
authors.lastname: Yamaue
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005743:Gastrectomy / Q000379:methods*; D006498:Hepatectomy / Q000379:methods*; D006801:Humans; D008113:Liver Neoplasms / Q000401:mortality / Q000556:secondary* / Q000601:surgery*; D008875:Middle Aged; D015999:Multivariate Analysis; D009361:Neoplasm Invasiveness; D010537:Peritoneum / Q000473:pathology; D011379:Prognosis; D016016:Proportional Hazards Models; D012189:Retrospective Studies; D013274:Stomach Neoplasms / Q000401:mortality / Q000473:pathology* / Q000601:surgery*; D016019:Survival Analysis