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Transanal Endoscopic Surgery for Rectal Cancer

  • Xavier Serra-AracilEmail author
  • Laura Mora-Lopez
Chapter

Abstract

The resection of the rectum and its mesorectal envelope, an operation known as total mesorectal excision (TME), is the optimal surgical treatment for most rectal cancer patients. However, this procedure is associated with multiple complications and high rates of bowel and genitourinary alterations that significantly impact quality of life. In addition, some patients with early tumors that have not penetrated the rectal wall or reached the mesorectal lymph nodes may not benefit from TME. Some of these tumors, particularly those invading the submucosa but not beyond, can be treated by means of local excision (LE).

Transanal endoscopic microsurgery (TEM) was developed in the 1980s as a way to improve the outcomes of LE and expand the possibility of organ preservation for tumors located up to 20 cm from the anal verge. The TEM equipment provides direct vision through a stereoscopic rectoscope and allows precise excision and suturing with the help of specially designed instrumentation. Transanal endoscopic operation (TEO), which uses standard laparoscopic instrumention and insufflation, emerged later as a simplification of TEM.

In this chapter we offer a step-by-step description of the standard TEM/TEO technique, outline the different types of equipment used in TEM and TEO, and examine the technical limitations. We also provide an overview of the pre- and postoperative management and discuss outcomes.

Keywords

Transanal endoscopic microsurgery (TEM) Transanal endoscopic operation (TEO) Transanal endoscopic surgery Local rectal excision Rectal adenomas Rectal cancer Rectal adenocarcinoma 

Supplementary material

Video 28.1

In this video, the surgeon demonstrates his approach to transanal endoscopic surgery (TEM). (MP4 149228 kb)

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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.Coloproctology Unit, Department of General and Digestive SurgeryParc Tauli University Hospital, Universitat Autònoma de BarcelonaBarcelonaSpain
  2. 2.Coloproctology Unit, Department of General and Digestive SurgeryParc Tauli University HospitalBarcelonaSpain

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