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Background <p>The ligation of the inferior mesenteric artery (IMA) is the primary procedure during surgeries of the left colon, sigmoid colon, and rectal cancer. Despite the ongoing debate on high or low ligation of the IMA, high ligation (HL) is now preferred by most of the surgeons. However, there is still a lack of consistency in the exact position of HL among surgical videos or introductions presented by different teams, causing confusion to new learners. The fascia-oriented dissection could help to clarify this issue.</p> Results <p>This video shows two definite levels of HL, the supra-nerve HL and the infra-nerve HL based on three biological fasciae around the root of the IMA, with priority given to fascia-oriented dissection, HL of the IMA could be performed safely and efficiently, even in cases with enlarged para-IMA nodes.</p> Conclusions <p>It is feasible to adopt the fascial space priority approach for HL of the IMA, and this approach is suitable for patients with enlarged para-IMA lymph nodes.</p>

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Two Levels of High Ligation of the Inferior Mesenteric Artery Based on Three Anatomical Fasciae for Colorectal Cancer (with Video)

  • 期刊论文

  • 发表日期：

    2025年9月5日

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  • Hongjie Yang,
  • Qingsheng Zeng,
  • Yuanda Zhou,
  • Peishi Jiang,
  • Jiafei Liu,
  • Zhichun Zhang,
  • Gangcheng Wang,
  • Yi Sun

摘要

Background

The ligation of the inferior mesenteric artery (IMA) is the primary procedure during surgeries of the left colon, sigmoid colon, and rectal cancer. Despite the ongoing debate on high or low ligation of the IMA, high ligation (HL) is now preferred by most of the surgeons. However, there is still a lack of consistency in the exact position of HL among surgical videos or introductions presented by different teams, causing confusion to new learners. The fascia-oriented dissection could help to clarify this issue.

Results

This video shows two definite levels of HL, the supra-nerve HL and the infra-nerve HL based on three biological fasciae around the root of the IMA, with priority given to fascia-oriented dissection, HL of the IMA could be performed safely and efficiently, even in cases with enlarged para-IMA nodes.

Conclusions

It is feasible to adopt the fascial space priority approach for HL of the IMA, and this approach is suitable for patients with enlarged para-IMA lymph nodes.