eTAMIS: endoscopic visualization for transanal minimally invasive surgery.

Area of Science:

• Minimally invasive surgery
• Colorectal surgery
• Surgical innovation

Background:

• Transanal endoscopic microsurgical (TEM) resection offers improved outcomes but requires extensive setup.
• Transanal minimally invasive surgery (TAMIS) was developed as an alternative.
• Endoscopic visualization for TAMIS (eTAMIS) is a novel technique.

Observation:

• eTAMIS was used to remove a large, 10 cm from the anal verge, rectal polyp.
• The lesion was a tubulovillous adenoma with early-stage adenocarcinoma (pTis).
• The procedure was performed using the Gelpoint Path TAMIS platform and a standard endoscope.

Findings:

• The eTAMIS procedure took 101 minutes.
• The patient was discharged within 24 hours with no complications.
• One-year follow-up showed no evidence of recurrent disease.

Implications:

• eTAMIS provides enhanced intraluminal articulation and visualization.
• The technique minimizes extraluminal instrument collisions.
• eTAMIS represents a practical advancement in natural orifice transluminal endoscopic surgery.