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Is Local Resection of Anal Canal Tumors Feasible with Transanal Endoscopic Surgery?

  • Xavier Serra-Aracil
  • Andrea Campos-Serra
  • Laura Mora-López
  • Sheila Serra-Pla
  • Anna Pallisera-Lloveras
  • Roser Flores-Clotet
  • Alba Zárate-Pinedo
  • Salvador Navarro-SotoEmail author
Original Scientific Report with Video
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Abstract

Background

An important drawback of local surgery for lesions in the anal canal is the difficulty of achieving en bloc full-thickness resections. The aim of this study is to evaluate TEM/TEO in lesions of this type from the point of view of morbidity, mortality and the quality of the pathology specimen.

Methods

This is an observational study with prospective data collection from June 2004 to July 2018. Two groups are defined: group A (rectal tumors with proximal margin between 0 and ≤4 cm from anal verge) and group B (distal margin > 4 cm from anal verge). A technical description is provided; resections and postoperative complications in both groups are compared.

Results

During the study period, 757 patients underwent TEM/TEO. Finally, 692 patients were included, 192 patients in group A and 500 patients in group B. An en bloc surgical specimen was obtained in 176/192 patients (91.7%), although the defect was completely sutured in 132 (68.8%). In the comparative analysis, group A did not present significantly greater fragmentation of the resected piece [16/192 (8.3%) vs. 36/500 (7.2%), p = 0.630], although group A was associated with greater involvement of the surgical margin [28/192 (14.6%), 32/500 (6.4%), p = 0.001] and clinically relevant morbidity [16/192 (8.3%), 20/500 (4%), p = 0.034]. There was no mortality.

Conclusions

The use of TEM/TEO to remove lesions originating in the anal canal is feasible. But we have to take into account that there is an increase in complications, technical difficulties and affected margins resection.

Notes

Acknowledgements

We thank the rest of the members of the Coloproctology Unit for applying the study protocol and Michael Maudsley for helping with the English.

Author contributions

All the authors agree to the submission of the paper. All the authors contributed to the design and writing of the paper.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

Supplementary material 1 (MP4 79184 kb)

Supplementary material 2 (MP4 67071 kb)

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Copyright information

© Société Internationale de Chirurgie 2019

Authors and Affiliations

  • Xavier Serra-Aracil
    • 1
  • Andrea Campos-Serra
    • 1
  • Laura Mora-López
    • 1
  • Sheila Serra-Pla
    • 1
  • Anna Pallisera-Lloveras
    • 1
  • Roser Flores-Clotet
    • 1
  • Alba Zárate-Pinedo
    • 1
  • Salvador Navarro-Soto
    • 1
    Email author
  1. 1.Coloproctology Unit, General and Digestive Surgery Service, Parc Tauli University Hospital, SabadellUniversitat Autònoma de BarcelonaSabadellSpain

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