Abstract

To investigate the prognostic factors affecting survival in patients with a deep gastric wall invasion of T3-T4 advanced gastric cancer. Descriptive study. Department of Gastroenterological Surgery, Kartal Koşuyolu High Specialty Training and Research Hospital, between November 2006 and December 2018. A retrospective review was made of 252 patients; and the clinicopathological characteristics and survival status in the presence of T1-T2 and T3-T4 patients were investigated. The cumulative survival of the two groups was analysed with a Kaplan-Meier test, and the differences were analysed with a log-rank test. The prognostic factors for T3-T4 patients were established through a stepwise Cox regression analysis. Of the total, 52 (20.6%) patients had T1-T2 and 200 (79.4%) had T3-T4 gastric wall invasion. Statistical differences were noted in the Lauren classification as gender, tumor size, presence of lymph node involvement, presence of vascular and perineural invasion, and overall survival (p <0.001). A univariate analysis of the prognostic factors affecting survival in T3-T4 patients revealed a difference in the tumor localisation, tumor size, the presence of involved lymph nodes, perineural invasion, and vascular invasion. A multivariate analysis of the prognostic factors affecting survival identified differences in tumor size, the presence of involved lymph nodes and perineural invasion. The most significant prognostic factor affecting survival in patients with T3-T4 gastric cancer, based on the depth of gastric wall invasion, was the tumor size, lymph node involvement and perineural invasion. Key Words: Advanced gastric cancer, Prognostic factor, Survival.

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