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Updated: Apr 6, 2026

Single-port Robotic Transanal Total Mesorectal Excision in a Porcine Model (Sus scrofa domesticus)
Published on: April 3, 2026
Optimal dissection for transanal total mesorectal excision using modified CO2 insufflation and smoke extraction
G Nicholson1, J Knol2, B Houben2
1Department of Colorectal Surgery, Oxford University Hospitals NHS Trust, Oxford, UK.
This study introduces an AirSeal platform modification for transanal total mesorectal excision, improving CO2 insufflation and smoke evacuation for enhanced surgical precision.
Area of Science:
- Surgical Innovation
- Minimally Invasive Surgery
- Colorectal Surgery
Background:
- Transanal total mesorectal excision (TaTME) presents technical challenges.
- Optimal visualization and a stable dissection field are crucial for TaTME success.
Purpose of the Study:
- To describe and demonstrate a modified approach to carbon dioxide insufflation and smoke evacuation in TaTME.
- To optimize the surgical dissection environment for TaTME procedures.
Main Methods:
- Comparison of standard carbon dioxide insufflation with an AirSeal platform.
- Demonstration of the technique using video recordings.
Main Results:
- The AirSeal platform resulted in a more stable pneumorectum.
- Improved smoke evacuation and more convenient, precise dissection were observed.
- Enhanced visualization of anatomical landmarks was achieved.
Conclusions:
- The modified technique provides a stable operating environment for TaTME.
- Increased visibility and improved dissection facilitate safer and more effective surgical outcomes.
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