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Background <p>Uncertainties persist regarding the allocation of apical lymph nodes in colorectal cancer, the approaches to lymph node dissection and mesocolic excision, which may contribute to inconsistent surgical practices. The aim of this study is to assess surgeons’ practices in lymph node dissection and mesocolic excision approaches and to identify areas lacking standardization.</p> Methods <p>A multinational pilot survey of 22 colorectal surgeons from 6 countries was conducted during the FICARE colorectal meeting. The survey consisted of 21 Likert-scale questions on surgical practices and lymph node allocation in colorectal cancer surgery.</p> Results <p>Majority of the respondents (90.9%) recognized conceptual differences in apical lymph node stratification between right- and left-sided colon cancers, whereas D3 LND for left-sided cancer should include mesocolic tissue along the inferior mesenteric artery from its origin to the last sigmoid artery. Complete lymph node dissection requires excision of mesocolic tissue along inferior mesenteric artery for left colon cancer and superior mesenteric artery for right colon cancer according to 81.8% of respondents. At the same time, 95.5% agreed that intermediate and paracolic lymph nodes are located within a 10-cm resection margin proximally and distally from tumor, while 81.9% of respondents supported the concept of tumor-specific mesocolic excision to be sufficient enough for adequate paracolic and intermediate lymph node dissection.</p> Conclusions <p>A multinational snapshot showed an existing contraindication in surgeons’ perception of lymph node stratification and the variability in mesocolic excision and LND. Further Delphi consensus is needed to prove the suggested concepts.</p>

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A multinational pilot survey of clinical practice patterns in tumor-specific mesocolic excision and complete lymph node dissection for colorectal cancer

  • 期刊论文

  • 发表日期：

    2026年3月23日

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  • Sergey Efetov,
  • Rodrigo Perez,
  • Roel Hompes,
  • Albina Zubayraeva,
  • Guilherme Pagin São Juliã,
  • Juan Pablo Campana,
  • Renato Campanati,
  • Michel Gardere Camargo,
  • Guilherme Cutait De Castro Cotti,
  • Mamuka Chanturia,
  • María Dolores Daneri,
  • Francisco Marques Dacanal,
  • Ana Maria Garcia,
  • Tiago Leal Ghezzi,
  • Bernardo Hanan,
  • Cuneyt Kayaalp,
  • Tatiana Khorobrykh,
  • Zheng Liu,
  • Carlos Augusto Real Martinez,
  • Gustavo Seva-Pereira,
  • Arina Rychkova,
  • André Araújo de Medeiros Silva,
  • Federico Yazyi

摘要

Background

Uncertainties persist regarding the allocation of apical lymph nodes in colorectal cancer, the approaches to lymph node dissection and mesocolic excision, which may contribute to inconsistent surgical practices. The aim of this study is to assess surgeons’ practices in lymph node dissection and mesocolic excision approaches and to identify areas lacking standardization.

Methods

A multinational pilot survey of 22 colorectal surgeons from 6 countries was conducted during the FICARE colorectal meeting. The survey consisted of 21 Likert-scale questions on surgical practices and lymph node allocation in colorectal cancer surgery.

Results

Majority of the respondents (90.9%) recognized conceptual differences in apical lymph node stratification between right- and left-sided colon cancers, whereas D3 LND for left-sided cancer should include mesocolic tissue along the inferior mesenteric artery from its origin to the last sigmoid artery. Complete lymph node dissection requires excision of mesocolic tissue along inferior mesenteric artery for left colon cancer and superior mesenteric artery for right colon cancer according to 81.8% of respondents. At the same time, 95.5% agreed that intermediate and paracolic lymph nodes are located within a 10-cm resection margin proximally and distally from tumor, while 81.9% of respondents supported the concept of tumor-specific mesocolic excision to be sufficient enough for adequate paracolic and intermediate lymph node dissection.

Conclusions

A multinational snapshot showed an existing contraindication in surgeons’ perception of lymph node stratification and the variability in mesocolic excision and LND. Further Delphi consensus is needed to prove the suggested concepts.