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  • Review Article
  • Published:

Minimal access surgery for rectal cancer: an update

Key Points

  • Laparoscopy for colon cancer resection is a widely practiced minimally invasive or minimal access surgery (MAS) technique

  • MAS techniques have been shown to be oncologically equivalent to open rectal cancer resection in terms of the number of harvested lymph nodes and margin negativity

  • Barriers such as a steep learning curve and the lack of long-term data on recurrence and survival preclude the widespread use of MAS approaches for rectal cancer

  • Several ongoing studies are evaluating the use of transanal endoscopic microsurgery for post-treatment rectal cancers that were initially staged at T2 or higher

  • Natural orifice transluminal endoscopic surgery remains an investigational approach for rectal cancer resection at this time

Abstract

Minimally invasive or minimal access surgery (MAS) for colon and rectal cancer was introduced in the early 1990s. Although laparoscopic colon surgery is now practiced worldwide, technical barriers, including a steep learning curve, preclude the widespread adoption of MAS techniques for rectal cancer. In addition, although randomized controlled trials have demonstrated that MAS techniques for colon cancer are oncologically equivalent to open surgery, similar confirmatory studies for rectal cancer have yet to be reported. In this Review, current evidence in support of laparoscopic and robotic total mesorectal excision for rectal cancer resection is presented. Other MAS approaches, such as transanal endoscopic microsurgery and natural orifice transluminal endoscopic surgery, are also discussed.

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Figure 1: Trochar placement for robotic laparoscopic-assisted total mesorectal excision.

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Hui, V., Guillem, J. Minimal access surgery for rectal cancer: an update. Nat Rev Gastroenterol Hepatol 11, 158–165 (2014). https://doi.org/10.1038/nrgastro.2013.203

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