230. survival outcomes of robot-assisted trans-mediastional esophagectomy in patients with ct1n0 esophageal squamous cell carcinoma

Diseases of the Esophagus(2023)

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Abstract Background We have developed a robot-assisted trans-mediastinal esophagectomy (RATME) to reduce the surgical invasiveness of open trans-thoracic esophagectomy (oTTE). However, the long-term outcome of esophageal cancer patients who underwent RATME remains unclear. Methods Patients who underwent RATME or oTTE for clinical T1N0 esophageal squamous cell carcinoma were enrolled in this study. The clinicopathological and surgical details, overall survival (OS), disease-free survival (DFS), and cause-specific survival (CSS) were compared between the RATME and oTTE groups. Results Forty-three and 47 patients who underwent RATME and oTTE, respectively, were included in this analysis. The RATME group included more male patients and had a significantly lower comorbidity index. There was no significant difference in age, tumor location, preoperative ESD rates, and pathological TNM factors between the two groups. The RATME group showed a longer operation time, less blood loss, low incidence of pneumonia, and shorter hospital stays. The OS and DFS rates in the RATME tended to be higher than in the oTTE group; The 5-year OS rates were 88.4 vs 71.5%, and the 5-year DFS rates were 81.4 vs 62.8% (RATME vs oTTE group, p = 0.09 and p = 0.11). The CSS in both groups were equivalent; The 5-year CSS rates were 93.7 vs 92.4% in the RATME and oTTE groups respectively. The RATME group had significantly fewer deaths than the oTTE group (p = 0.032). Conclusions The RATME group tended to show better OS and DFS than the oTTE group. The OS of the RATME group was equivalent to that of the comprehensive registry data in Japan, indicating that RATME radicality is guaranteed.
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esophageal squamous cell carcinoma,squamous cell carcinoma,survival outcomes,robot-assisted,trans-mediastional
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