Early Surgical and Long-term Oncological Outcomes of Totally Laparoscopic Near-total Gastrectomy in >150 Cases

Abstract

This study aimed to examine the early surgical outcomes and long-term oncological safety of totally laparoscopic near-total gastrectomy for the treatment of upper-third early gastric cancer. We retrospectively collected and analyzed the data of 167 consecutive patients who underwent totally laparoscopic near-total gastrectomy for upper-third early gastric cancer between January 2008 and May 2018. Data on clinical characteristics and surgical outcomes, including operation time, length of postoperative hospital stay, pathologic findings, and postoperative complications, were obtained. We also analyzed recurrence-free and overall survival rates to evaluate the oncological outcomes. The mean operation time was 149.44±37.59 minutes; none of the patients required conversion to laparotomy during surgery. The average postoperative hospital stay was 7.57±5.69 days. On final pathologic analysis, the mean proximal resection margin was 1.97±1.68 cm. No patients had an involved proximal resection margin. Twenty-seven patients (16.17%) had postoperative complications; of them, 6 patients (3.59%) had Clavien-Dindo classification grade 3 or higher complications, all within 1 month. The median follow-up duration was 54.35 months. The 3- and 5-year recurrence-free survival rates were 98.3% and 97.1%, respectively. The overall survival rate was 97.1% at both 3 and 5 years. Our study shows that totally laparoscopic near-total gastrectomy is a safe and feasible procedure for treating the upper-third early gastric cancer. Further, in the current study, the procedure demonstrated a favorable oncological outcome for a relatively long follow-up period and large sample size.