Transanal Minimally Invasive Surgery (TAMIS): Standardizing a Reproducible Procedure

J Gastrointest Surg. 2015 Aug;19(8):1528-36. doi: 10.1007/s11605-015-2858-4. Epub 2015 May 28.


Background: The recent introduction of transanal minimally invasive surgery (TAMIS) offers a safe and cost-effective method for the local resection of rectal neoplasms. The ability to standardize a technique for TAMIS will lead to the most reproducible outcomes and enable teaching.

Methods: A retrospective, IRB-approved chart review was conducted of 32 patients who underwent the TAMIS procedure at one institution over a 3-year period.

Results: TAMIS was performed for 11 benign and 21 malignant lesions. The majority of resections were full thickness (29/32) and all were R0. Average distance from the anal verge was 7.5 ± 3 cm, defect circumference was 43.7 ± 10%, operative time was 131 ± 80 min, and length of stay was 1.1 ± 1 days. Two patients had morbidities requiring readmission and further treatment for (1) an aspiration pneumonia with CHF exacerbation and (2) a rectal abscess.

Conclusions: This report outlines an operative technique for TAMIS that is reproducible for the excision of rectal lesions, associated with low morbidity.

Publication types

  • Clinical Study

MeSH terms

  • Abscess
  • Adenocarcinoma / surgery*
  • Adenoma / surgery*
  • Adult
  • Aged
  • Aged, 80 and over
  • Carcinoid Tumor / surgery*
  • Cost-Benefit Analysis
  • Female
  • Humans
  • Male
  • Middle Aged
  • Operative Time
  • Pneumonia, Aspiration
  • Postoperative Complications
  • Rectal Diseases / surgery
  • Rectal Neoplasms / surgery*
  • Reference Standards
  • Retrospective Studies
  • Transanal Endoscopic Surgery / methods*
  • Ulcer / surgery*