Related Experiment Video
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.
Aim:
The new approach of transanal total mesorectal excision is technically challenging and demands a stable field of dissection with optimal view of anatomical landmarks. We aimed to describe and demonstrate a modification of both the insufflation of carbon dioxide and smoke evacuation, in order to optimize dissection.
Method:
The comparison of standard insufflation to an AirSeal platform demonstrates a clear difference. This is shown in the accompanying video-recordings.
Results:
A more stable pneumorectum and better smoke evacuation as well as more convenient and precise dissection were achieved with the AirSeal platform.
Conclusion:
Using the technique outlined, the operating surgeon is able to perform the surgical dissection in a stable operating environment with increased visibility compared to the standard approach.
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