Trans-anal minimally invasive surgery for rectal neoplasia: Experience from single tertiary institution in China

Figure 1 Settings for trans-anal minimally invasive surgery. The SILS-Port^® was inserted through the anus. Assisting trocars and routine laparoscopic instruments were placed. A high-definition 30º 5 mm or 10 mm laparoscopic camera lens was chosen. SILS: Single incision laparoscopic surgery.

Figure 2 Procedures of trans-anal minimally invasive surgery. A: Intra-operative view of TAMIS showed resection margin was marked by electrocautery; B: An endoscopic grasper and electrocautery were used to facilitate a fullthickness excision; C: The defect of rectal wall was closed using STRATAFIXTM; D: The surgical specimen was pinned on plastic board with indicative orientation. TAMIS: Trans-anal minimally invasive surgery.

Figure 3 Correlation between cases and duration of trans-anal minimally invasive surgery surgeries. The X-axis represented individual case consequently, while the Y-axis was the duration of each surgery (min), indicating the learning curve of this technique.