Preoperative Marking with ICG Fluorescent Clip Aiming Minimal Resection Margin in Gastrectomy for Gastric Cancer

In robotic-assisted gastrectomy for esophagogastric junctional cancer, oncologically feasible and minimal resection margin is required for simple and safety reconstruction. Here, we report 4 surgical cases of junctional cancer of which the proximal margin was marked by ICG fluorescent clip. Intraoperative visibility, distance from proximal margin and pathological finding of the resection margin were evaluated. In all cases, ICG fluorescent clip showed good visibility. The resection margin from oral side was between 1 to 3 mm. No residual cancer was found pathologically. ICG clip can be a simple and accurate method for preoperative marking.