Application of improved π anastomosis in totally laparoscopic radical right hemicolectomy

Figure 1 Flow chart of patient screening.

Figure 2 Schematic of improved π anastomosis.

Figure 3 Surgical procedures of improved π anastomosis. A: The caudal-to-median approach was used for regional lymph node and adipose tissue dissection; B: The distal resection margin was marked approximately 10 cm from the tumor; C: The transverse colon was transected with a linear stapler; D: A 0.5 cm incision was made along the anti-mesenteric edge at the predetermined ileal cutting line using electrocoagulation; E: A 0.5 cm incision was made on the anti-mesenteric side of the transverse colon stump; F: The two ends of the linear stapler were positioned in the ileum and transverse colon, completing the side-to-side ileocolonic anastomosis; G: The common opening between the ileum and colon was closed using the linear stapler, simultaneously transecting the ileum to complete the anastomosis; H: Completed side-to-side anastomosis of the ileum and colon; I: Closure of the mesenteric defect.

Figure 4 The learning curve analysis results. A: Scatter plot; B: Cumulative sum plot. CUSUM: Cumulative sum.