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Robotic transanal minimally invasive surgery: a case series
Karina W Lo1, David N Blitzer2, Sami Shoucair2
1Department of Surgery, MedStar Health Baltimore, 9000 Franklin Square Drive, Suite 2312, Baltimore, MD, 21237, USA. karinawailinlo@gmail.com.
Surgical Endoscopy
|January 8, 2021
Summary
Robot-assisted transanal minimally invasive surgery (rTAMIS) offers a safe and effective method for excising rectal lesions, including early cancers. This technique achieved 100% negative margins in a single-institution study, demonstrating its potential for improved patient outcomes.
Area of Science:
- Colorectal Surgery
- Minimally Invasive Surgery
- Robotic Surgery
Background:
- Transanal minimally invasive surgery (TAMIS) is a popular technique for rectal lesion excision.
- Robot-assisted TAMIS (rTAMIS) enhances ergonomics over conventional laparoscopic methods.
Purpose of the Study:
- To evaluate the single-institution experience with robot-assisted transanal minimally invasive surgery (rTAMIS).
- To assess the safety and efficacy of rTAMIS for rectal lesion resection.
Main Methods:
- Retrospective case series of 16 patients undergoing rTAMIS.
- Data collected included demographics, pathology, surgical details, and clinical outcomes.
- Procedure success defined by negative margins on final pathology.
Main Results:
- rTAMIS achieved 100% negative margins in all excision cases.
- Mean operative time was 87 minutes with a median length of stay of 0 days.
- Postoperative complications included incontinence (1) and abscess formation (2).
Conclusions:
- rTAMIS is a safe alternative to laparoscopic TAMIS for rectal polyps and early cancers.
- Robotic assistance may enable resection of larger or more proximal rectal lesions.
- Future research should compare rTAMIS with laparoscopic TAMIS outcomes.

