Advantages of the Left-handed Ultrasonic Shears Technique for Robotic Gastrectomy

Purpose: The aim of this study was to investigate advantages of the left-handed ultrasonic shears technique in robotic gastrectomy for gastric cancer. Methods: We retrospectively analyzed 67 consecutive gastric cancer patients who underwent robotic gastrectomy. Fifty-six patients underwent gastrectomy with the left-handed ultrasonic shears technique (the left hand group), and 11 patients underwent surgery with the conventional approach (the conventional group). Intraoperative and postoperative outcomes were compared between the 2 groups. Results: Operative blood loss, morbidity, and mortality were similar between the 2 groups. We observed a trend toward a shorter operation time and higher number of retrieved lymph nodes in the left hand group compared with the conventional group. Console time (docking-gastrectomy) in the left hand group was significantly shorter than in the conventional group (192.20 vs. 218.36 min, P<0.05). In robotic distal gastrectomy, both operation time and console time in the left hand group were significantly shorter than in the conventional group (276.10 vs. 354.80 min, 176.43 vs. 209.20 min, P<0.05 for both). The postoperative intra-abdominal infectious complication (Clavien Dindo >= 1) rate in the left hand group was significantly lower than that in the conventional group (0% vs. 20%, P<0.05). Conclusions: Use of the left-handed ultrasonic shears technique is safe and provides a technically superior operative environment with satisfactory postoperative results.

Automated summary

In this study of robotic gastrectomy for gastric cancer, the left-handed ultrasonic shears technique showed advantages in reducing operation time, increasing the number of retrieved lymph nodes, and decreasing the risk of postoperative intra-abdominal infectious complications compared to the conventional approach.