Comparison of Medisonic with Harmonic HD 1000i and Sonicision ultrasonic energy device in laparoscopic gastrectomy: a pilot randomized clinical trial.

PURPOSE

This study aimed to compare the clinical performance of Medisonic (Daiwha Corp.) to that of Harmonic HD 1000i (Ethicon Endo-Surgery Inc.) and Sonicision (Medtronic) in patients undergoing gastrectomy for gastric cancer.

METHODS

A total of 30 patients were enrolled in this prospective randomized study. The patients were randomly assigned to a Medisonic (M group, n = 10), Harmonic HD 1000i (H group, n = 10), or Sonicision (S group, n = 10) groups. Primary outcome was cutting speed and activation times during omentectomy. Other variables were visibility of surgical field, blade stickiness, and clinical outcomes, including operation-related complications.

RESULTS

Clinicopathologic characteristics, including age, sex, body mass index, or stage were not different between the 3 groups. Operative outcomes, including operation time, estimated blood loss, and postoperative hospital stay were not different between the 3 groups. There was no significant difference in 30-day postoperative complications. The running time of omentectomy was 7.3, 9.2, and 8.7 minutes in the H, S, and M groups, respectively, with no statistical difference (P = 0.589). We also looked at the activation times during the omentectomy, and there was no statistical difference between the groups (52.6 times 58.9 times 56.2 times in the H, S, and M groups, respectively; P = 0.860).

CONCLUSION

Medisonic is safe and efficient to perform laparoscopic radical gastrectomy and is not inferior to Harmonic HD 1000i or Sonicision in terms of clinical outcomes and cutting/sealing function.