A New Approach to Laparoscopic Lymph Node Excision in Cases of Transverse Colon Cancer

Authors:
  • YKYukihito Kokuba
    Yukihito Kokuba
  • YMYasutoshi Murayama
    Yasutoshi Murayama
  • SKShuhei Komatsu
    Shuhei Komatsu
  • ASAtsushi Shiozaki
    Atsushi Shiozaki
  • YKYoshiaki Kuriu
    Yoshiaki Kuriu
  • HIHisashi Ikoma
    Hisashi Ikoma
  • DIDaisuke Ichikawa
    Daisuke Ichikawa
  • HFHitoshi Fujiwara
    Hitoshi Fujiwara
  • KOKazuma Okamoto
    Kazuma Okamoto
  • TOToshiya Ochiai
    Toshiya Ochiai
  • EOEigo Otsuji
    Eigo Otsuji
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Abstract
Background: Treatment of transverse colon cancer by laparoscopic surgery is difficult, and this surgery has been excluded in many randomized control trials. Difficulty in excising lymph nodes around the middle colonic artery has been the main factor responsible for the complexity of this surgery. Herein, we describe a new approach to overcome this difficulty in lymph node excision in cases of transverse colon cancer. Approach: We adopted the following steps to collect information that was otherwise difficult to obtain from two-dimensional images displayed on the monitor screen, in order to ensure safety during laparoscopic surgery. (1) The omental bursa was opened by directly visualizing it through a small incision created in the median epigastric region, and the cranial side of the transverse colon mesentery was then freed. (2) The colonic drainage vein entering the right gastroepiploic vein was dissected, and a gauze was inserted into the freed layer. (3) Under laparoscopic guidance, the freed layer was fixed, with the inserted gauze serving as a landmark. The lymph nodes were then excised making full use of the horizontal view. Conclusion: Utilization of a small incision in the abdomen enables full use of the horizontal view for manipulations during laparoscopy, allowing safe manipulations for lymph node excision.

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