Robotic Transanal Surgery. Initial Experience in a Developing Country

Abstract

Background Transanal minimally invasive surgery (TAMIS) is a surgical technique used for the excision of rectal neoplasia that gained popularity during the last decade.Due to the technical difficulty (non-articulated instruments, reduced workspace) and the long learning curve associated with this technique, the use of robotic platforms to improve resection results has been suggested and reported, at the same time that the learning curve decreases and the procedure is facilitated Materials and Methods From March 2017 to December 2019, all patients with rectal lesions eligible for TAMIS were offered the possibility to receive a robotic TAMIS (R-TAMIS). We used a transanal GelPoint Path (Applied Medical Inc., Santa Margarita, CA, USA) in the anal canal to be able to do the Da Vinci Si (Intuitive Surgical, Sunnyvale, CA, USA) robotic platform docking, which we used to perform the excision of the rectal lesion as well as the resection site defect. Results Five patients between 34 and 79 years of age underwent R-TAMIS. The mean distance to the anal verge was 8.8 cm. There were no conversions. The mean surgery time was 85 minutes, and the mean docking time was 6.6 minutes. Conclusions Robotic TAMIS is a feasible alternative to TAMIS, with a faster learning curve for experienced surgeons in transanal surgery and better ergonomics. Further studies are needed to assess the cost-benefit relationship.

Keywords

• transanal surgery
• robotic surgery
• rectal cancer
• minimally invasive
• rectal polyps
• tamis
• r-tamis