Total Tumor Volume Should be Considered as an Important Prognostic Factor for Synchronous Multiple Gastric Cancer...

Synchronous multiple gastric cancer (SMGC) was a special type of gastric cancer with relatively low incidence. This article was designed to demonstrate that the total tumor volume (TTV) should be treated as an important prognostic factor in SMGC patients with curative gastrectomy. This study retrospective analyzed 140 SMGC patients who received curative gastrectomy between December 2004 and December 2014 in our hospital. Clinicopathological features, preoperative evaluation, surgical treatment, and outcome parameters were reviewed and analyzed. This study applied univariate and multivariate analyses to identify the most significant prognostic factors. In the univariate analysis, the TTV, pT_TVNM, pN stage, pT of main tumor were all significant prognostic factors in SMGC patients (all P < 0.05). In the multivariate analysis, pN stage, TTV and pT_TVNM were confirmed to be independent prognostic factors (all P < 0.05). In the comparison of survival analysis, the pT_TVNM stage system (P < 0.05) was superior to the pTNM stage system (P > 0.05) in SMGC patients. In conclusion, the TTV should be considered as an independent prognostic factor in overall survival in SMGC patients who received curative gastrectomy. The pT_TVNM stage should be recommended as a suitable staging system for SMGC patients.