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Summary

Local excision offers an alternative to total mesorectal excision for early rectal cancer in select patients, potentially improving quality of life but possibly impacting survival rates.

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Area of Science:

  • Colorectal Surgery
  • Oncology
  • Gastroenterology

Background:

  • Total mesorectal excision (TME) is standard for rectal cancer.
  • Early-stage T1/T2 rectal adenocarcinoma may be candidates for local excision.
  • Patient factors like surgical candidacy influence treatment choice.

Purpose of the Study:

  • To evaluate local excision as an alternative to TME for early rectal cancer.
  • To compare outcomes of local excision versus TME.
  • To explore the role of chemoradiation in conjunction with local excision.

Main Methods:

  • Transanal endoscopic microsurgery (TEMS) and transanal minimally invasive surgery (TAMIS) for specific tumor characteristics.
  • Use of preoperative and/or postoperative chemoradiation therapy.
  • Comparison of quality of life and survival rates between local excision and TME.

Main Results:

  • Local excision is feasible for select early rectal cancers.
  • Transanal approaches are suitable for tumors <4 cm, <40% circumference, and <10 cm from dentate line.
  • Local excision may improve quality of life but potentially compromise survival compared to TME.

Conclusions:

  • Local excision is a viable option for select early rectal cancer patients.
  • Multidisciplinary management and shared decision-making are crucial for optimal outcomes.
  • Balancing quality of life and survival is key in treatment planning.