Single port sigmoidectomy in an experimental model with survival

Area of Science:

• Minimally Invasive Surgery
• Surgical Technology
• Gastrointestinal Surgery

Background:

• Single port laparoscopic access potentially reduces morbidity compared to multi-port techniques.
• Novel trocar technology is crucial for advancing single-port and natural orifice transluminal endoscopic surgery (NOTES).

Purpose of the Study:

• To evaluate the technical feasibility and safety of a novel single port system for laparoscopic sigmoid resection and reanastomosis in a porcine model.

Main Methods:

• A novel vortex-seal port was used for single-port laparoscopic sigmoid resection and reanastomosis in 6 pigs.
• Animals were observed for 2 weeks, followed by sigmoidoscopy and laparotomy to assess anastomotic healing and complications.

Main Results:

• The procedure was technically feasible with a mean operative time of 12.3 minutes.
• All animals survived, with patent anastomoses observed at follow-up; one required re-do due to staple misfire but was managed without additional ports.
• Only one animal showed complicated anastomotic healing, correlating with the re-do procedure.

Conclusions:

• Single port colonic resection and reanastomosis is readily achievable in this animal model.
• This approach may advance single-port surgery and facilitate the clinical adoption of other developmental access routes.