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Transanal TAMIS (Minimally Invasive Approach)

Single-port transanal local excision technique for early rectal lesions.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Genel Cerrahi department. Book Appointment →

What is Transanal TAMIS (Minimally Invasive Approach)?

Transanal minimally invasive surgery (TAMIS) is a sphincter-preserving endoluminal technique that uses a single-port platform inserted through the anus to access the rectal lumen with insufflation and laparoscopic instrumentation.

It is principally used for full-thickness local excision of benign rectal adenomas, sessile polyps not amenable to endoscopic resection, and selected early rectal cancers (T1 N0, low-risk histology) when standard transanal excision (TEM) equipment is not available.

Compared with conventional TEM and transabdominal proctectomy, TAMIS offers shorter operative time, lower cost, less postoperative pain, preserved sphincter function and equivalent oncological outcomes for properly selected lesions.

Symptoms

Rectal bleeding from a polyp or tumour
Mucous discharge
Tenesmus and incomplete defecation
Polyp identified at colonoscopy not amenable to endoscopic resection
Early stage rectal cancer on biopsy
Recurrent benign rectal adenoma
Patient unfit for transabdominal surgery

Risk Factors

Large sessile rectal polyp (>3 cm)
Recurrent adenoma after endoscopic resection
Early T1 rectal adenocarcinoma low risk
Carcinoid tumour or GIST <2 cm
Submucosal lesion needing histology
Patient declining radical surgery
High operative risk for transabdominal approach

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Persistent rectal bleeding
  • Polyp not amenable to colonoscopic removal
  • Biopsy-proven early rectal cancer
  • Recurrent benign lesion after endoscopic excision

Treatment Methods

01
MRI rectum and endorectal ultrasound for staging
02
Bowel preparation and prophylactic antibiotics
03
Single-port TAMIS device insertion via anus
04
Full-thickness excision with 1 cm margin
05
Defect closure with absorbable suture
06
Histopathology and multidisciplinary review
07
Salvage surgery if adverse histology found

Which Department to Visit?

You can visit our Genel Cerrahi department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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Let us help you

You can make an appointment with our specialists or contact us for your concerns.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.