Abstract
Purpose
The purpose of this study is to define the blood vessels from a surgical perspective and show the frequency of vascular anatomical anomalies as well as the positional relationship with the surrounding organs, including the number of jejunal veins that cross the dissection area in our series.
Materials and methods
From January 2016 to December 2018, 126 patients who received ileocecal resection or right hemicolectomy for colonic cancer in our institution were retrospectively analyzed by preoperative enhanced computed tomographic colonography images that were obtained using an 80-detector row CT scanner and workstation. The ileocolic artery/vein, right colic artery/vein and middle colic artery/vein were defined as the vessels that flow directly from or into the superior mesenteric artery/vein. All colic veins that flowed into the gastro-colic trunk were defined as accessory right colic veins.
Results
The accessory right colonic vein existed more than two in 62.6% of cases. In 11 cases (8.9%), the inflow point of the ileocecal vein was on the ventral side of the pancreas. There was one jejunal vein that straddled the dissection area in 31% and two in 6.3%.
Conclusion
This study elucidated the vascular anatomy and positional relationship with surrounding organs that is required in central vascular ligation during complete mesocolic excision for right sided colon cancer.
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GO designed the study and wrote the initial draft of the manuscript. All other authors have contributed to data collection and interpretation, and critically reviewed the manuscript. All authors approved the final version of the manuscript and agree to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.
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Ethical approval was waived by the local Ethics Committee of Chiba University School of medicine (Ethics review number 3043) in view of the retrospective nature of the study and all the procedures being performed were part of the routine care.
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Ohira, G., Hayano, K., Imanishi, S. et al. Preoperative evaluation of vascular anatomy of right colic vessels using enhanced computed tomographic colonography. Jpn J Radiol 40, 607–612 (2022). https://doi.org/10.1007/s11604-021-01237-y
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DOI: https://doi.org/10.1007/s11604-021-01237-y