title: Impact of clinicopathological parameters on survival after multiorgan resection among patients with T4 gastric carcinoma: a systematic review and meta-analysis.
abstract: BACKGROUND
  The prognostic factors which can improve the overall survival (OS) of patients with T4 gastric carcinoma (GC) are still controversial: a meta-analysis was conducted to analyze the impact of clinicopathological parameters on survival after MOR among patients with T4 GC.
  
  
  METHODS
  A systematic search was performed. Odd risks (ORs) of patients with T4 GC were used to calculate the relationship between clinicopathological parameters and OS.
  
  
  RESULTS
  Nine studies involving 941 patients with T4 GC were identified. Well-moderate differentiation led to increased 1-, 3-, 5-year OS with an OR of 2.63, 1.58 and 1.45. Borrmann type I-II led to increased 1-, 3-year OS with an OR of 1.67 and 2.08. No lymph node metastasis led to increased 1-, 3-, 5-year OS with an OR of 7.16, 3.18 and 3.71. Total gastrectomy led to increased 1-, 3-year OS with an OR of 2.01 and 1.79. ≥2 Organs resected led to increased 1-, 3-year OS with an OR of 2.19 and 2.19. TNM stage II-III led to increased 1-, 3-year OS with an OR of 3.68 and 5.75. Curative resection led to increased 1-, 3-, 5-year OS with an OR of 4.46, 5.80 and 5.98.
  
  
  CONCLUSIONS
  Well-moderate differentiation, Borrmann type I-II, no lymph node metastasis, total gastrectomy, ≥2 organs resected, TNM stage II-III and curative resection were positive prognostic factors for OS of patients with T4 GC.
authors.affiliation: Department of Gastroenterology Surgery, The Dalian Municipal Central Hospital Affiliated of Dalian Medical University, Dalian Shahekou District Southwest Road No. 826, Dalian, 116033, People's Republic of China. zushanghai@163.com.
authors.forename: G
authors.initials: G
authors.lastname: Zu
authors.affiliation: Department of Gastroenterology Surgery, The Dalian Municipal Central Hospital Affiliated of Dalian Medical University, Dalian Shahekou District Southwest Road No. 826, Dalian, 116033, People's Republic of China.
authors.forename: T
authors.initials: T
authors.lastname: Zhang
authors.affiliation: Department of Gastroenterology Surgery, The Dalian Municipal Central Hospital Affiliated of Dalian Medical University, Dalian Shahekou District Southwest Road No. 826, Dalian, 116033, People's Republic of China.
authors.forename: W
authors.initials: W
authors.lastname: Li
authors.affiliation: Department of Gastroenterology Surgery, The Dalian Municipal Central Hospital Affiliated of Dalian Medical University, Dalian Shahekou District Southwest Road No. 826, Dalian, 116033, People's Republic of China.
authors.forename: Y
authors.initials: Y
authors.lastname: Sun
authors.affiliation: Department of Gastroenterology Surgery, The Dalian Municipal Central Hospital Affiliated of Dalian Medical University, Dalian Shahekou District Southwest Road No. 826, Dalian, 116033, People's Republic of China. dr-zhang@hotmail.com.
authors.forename: X
authors.initials: X
authors.lastname: Zhang
mesh_terms: D000230:Adenocarcinoma / Q000401:mortality / Q000473:pathology* / Q000601:surgery*; D006801:Humans; D011379:Prognosis; D013274:Stomach Neoplasms / Q000401:mortality / Q000473:pathology* / Q000601:surgery*; D016896:Treatment Outcome
keywords: Clinicopathological parameters; Gastric carcinoma; Multiorgan resection; Survival