AMIS Surgery: What It Is and Why It Matters
Transanal Minimally Invasive Surgery, known as TAMIS, is an advanced surgical technique used to treat lesions in the rectum and the lower part of the colon without making abdominal incisions.
The surgeon operates through the anus using specialised instruments and a video endoscope, allowing precise access to the lesion with minimal trauma.
TAMIS is especially useful for removing large polyps, complex benign lesions and, in selected cases, very early rectal cancers.
When is TAMIS indicated?
The main indications include:
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Large rectal polyps or lesions that cannot be removed by colonoscopy
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Benign rectal lesions requiring precise local excision
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Early rectal cancer, only in carefully selected patients after multidisciplinary evaluation
TAMIS allows complete and accurate removal while preserving healthy tissue.
Advantages of TAMIS
Compared with traditional rectal surgery, TAMIS offers several benefits:
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Faster recovery
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Less postoperative pain
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Lower risk of infection and complications
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No abdominal scars
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Reduced risk of postoperative hernias
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Greater precision in lesion excision
These benefits often translate into a better postoperative quality of life.
Why patient selection is essential
Not all patients are suitable candidates for TAMIS. A specialist colorectal surgeon must evaluate:
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Type of lesion
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Size and exact location
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Depth or suspicion of invasion
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The patient’s overall condition
If an early rectal cancer is suspected, the case should always be reviewed by a multidisciplinary tumour board, including: Colorectal surgery, Oncology, Radiology and Pathology
This team-based approach ensures an accurate diagnosis, considers all therapeutic options and personalises treatment to guarantee the safest and most effective outcome.
If you have been diagnosed with a rectal lesion or large polyp, request a specialist evaluation to determine whether TAMIS is the most appropriate option for you.