696 LONG-TERM OUTCOMES OF MINIMALLY INVASIVE ESOPHAGECTOMY COMPARED TO OPEN ESOPHAGECTOMY: A RETROSPECTIVE ANALYSIS OF 2958 CASES IN SINGLE CANCER CENTER

Abstract

Abstract Esophageal cancer is the fourth primary cause of cancer-related death in the male in China.The cornerstone of treatment for resectable esophageal cancer is surgery. With the development of minimally invasive esophagectomy (MIE), it is gradually adopted as an alternative to open esophagectomy (OE) in real-world practice. The purpose of this study is to explore whether MIE vs. OE will bring survival benefits to patients with the advancement of treatment techniques and concepts. Methods Data were obtained from the Sichuan Cancer Hospital & Institute Esophageal Cancer Case Management Database (SCH-ECCM Database). We retrospective analyzed esophageal cancer patients who underwent esophagectomy from Jan. 2010 to Nov. 2017. Patients were divided into two groups: MIE and OE groups. Clinical outcome and survival data were compared using TNM stages of AJCC 8th edition. Results After 65.3 months of median follow-up time, 2958 patients who received esophagectomy were included. 1106 of 2958 patients (37.4%) were underwent MIE, 1533 of 2958 patients (51.8%) were underwent OE. More than half of the patients (56.7%, 1673/2958) were above stage III. The median overall survival (OS) of 2958 patients was 51.6 months (95% CI 45.2–58.1). The MIE group's median OS was 74.6 months compared to 42.4 months in the OE group (95% CI 1.23–1.54, P < 0.001). The OS at 1, 3, and 5 years were 90%, 68%, 58% in the MIE group; 85%, 54%, 42% in the OE group,respectively (P<0.001). Conclusion The nearly 8-year follow-up data from this single cancer center suggests that with the advancement of minimally invasive surgical technology, MIE can bring significant benefits to patients' long-term survival compared with OE. Following the continuous progression of minimally invasive surgery and establishing a mature surgical team, MIE should be encouraged.