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The incidences of upper third gastric cancer (UTGC) have been increasing. However, the prognostic factors for UTGC following radical surgical treatment remains largely unknown. This study was to investigate prognostic factors for overall survival (OS), lymph node metastasis and recurrence of UTGC.Clinicopathologic data of 126 UTGC patients who underwent radical surgical treatment were retrospectively analyzed. OS and univariate analysis were determined by Kaplan-Meier analysis and the significance of the difference between curves was calculated with the log-rank test. The Cox proportional hazards regression model was applied to perform multivariate analysis. Receiver operating characteristic (ROC) curve analysis was used to determine the prognostic accuracy.The 1-, 3-, and 5-year OS for patients with UTGC were 81%, 47.6%, and 38.6% respectively. Univariate analysis showed that tumor size (P = .019), tumor invasion depth (P < .001), and lymph node metastasis (P < .001) were the risk factors for 5-year OS. Multivariate analysis identified tumor invasion depth (P < .001) and lymph node metastasis (P < .001) as independent prognostic factors for the 5-year OS in patients with UTGC. In addition, ROC curve analysis showed that tumor invasion depth (P = .017) or lymph node metastasis (P = .001) alone showed significantly effective prognosis for the 5-year OS in patients with UTGC. For UTGC patients with lymph node metastasis, tumor size (P = .023), lym embolism (P = .003), tumor invasion depth (P = .002), and invasion of tunica serosa (P = .004) were the risk factors for the 5-year OS. Multivariate analysis identified tumor size (P = .048), lym embolism (P = .032), tumor invasion depth (P = .004), and invasion of tunica serosa (P = .031) as independent prognostic factors for the 5-year OS. For UTGC patients with distant metastasis or tumor recurrence, univariate and multivariate analyses demonstrated that tumor invasion depth and lymph node metastasis were independent prognostic factors for the 5-year OS.The results suggested that for UPGC patients undergoing the radical surgical treatment, tumor invasion depth and/or lymph node metastasis are the independent prognostic factors for the 5-year OS, lymph node metastasis, distant metastasis and tumor recurrence.

Clinicopathologic characteristics in patients with upper third gastric cancer following radical surgical treatment