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Appropriate traction can help identify the optimal dissectable layer for infrapyloric lymph node dissection in laparoscopic gastrectomy

Appropriate dissection of the infrapyloric lymph nodes (no. 6 LNs) is important in gastric cancer surgery. In laparoscopic surgery, dissection of the no. 6 LNs along the inner dissectable layer from the left side of patient has been reported. However, it is difficult for surgeons to provide appropriate traction with their left hand from the left side. To resolve this difficulty, we dissected the no. 6 LNs from the patient’s right side to identify the optimal layer. We then evaluated the oncologic reliability of the layer and the safety of this procedure.