Influence of colonic mesenteric area on the number of lymph node retrieval for colon cancer: a prospective cohort study

Nadir Adnan Hacım; Ahmet Akbaş; Yigit Ulgen; Talar Vartanoglu Aktokmakyan; Serhat Meric; Merve Tokocin; Onder Karabay; Yuksel Altinel

doi:10.3393/ac.2021.00444.0063

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저자정보: Nadir Adnan Hacım (Department of General Surgery Bagcilar Training and Research Hospital) Ahmet Akbaş (Department of General Surgery Bagcilar Training and Research Hospital) Yigit Ulgen (Department of Pathology Bagcilar Training and Research Hospital) Talar Vartanoglu Aktokmakyan (Department of General Surgery Bagcilar Training and Research Hospital) Serhat Meric (Department of General Surgery Bagcilar Training and Research Hospital) Merve Tokocin (Department of General Surgery Bagcilar Training and Research Hospital) Onder Karabay (Department of Surgery Yedikule Surp Pırgiç Armenian Hospital) Yuksel Altinel (Department of General Surgery Bagcilar Training and Research Hospital)

저널정보: 대한대장항문학회 Annals of Coloproctology Annals of Coloproctolgy Vol.39 No.1

발행연도: 2023.2

수록면: 77 - 84 (8page)

DOI: 10.3393/ac.2021.00444.0063

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Purpose: The minimum harvested 12 lymph nodes (LNs) is regarded as the limit for accurate staging of nodal status in colorectal cancer patients. Besides the association of the lengths of resected intestinal segments and vascular pedicles, the mesocolic mesenteric area’s impact on LN count has not been studied. We aimed to evaluate the associations between metric variables, including the mesocolic mesentery area on the nodal harvest. Methods: All consecutive patients who underwent elective colectomy with a curative intention for colon adenocarcinoma were prospectively included. The metric variables included the lengths of resected intestinal segments, vascular pedicle, and colonic mesenteric area. The variables influencing the LN count and the correlation between the total LN count and the specimens’ relevant metric measurements were analyzed. Results: There were 46 patients with a median age of 64 years. The median count for total LNs was 22, and the LN positivity was 59.2%. There was an inadequate LN yield (<12) in 3 patients (6.1%). No significant associations were found between the adequacy of nodal harvest and the demographic, clinical, and tumoral features (P>0.05). There were significant positive correlations between total LN number and length of vascular pedicle and mesenteric area (r=0.576, P<0.001 and r=0.566, P<0.001). Conclusion: The length of the vascular pedicle and mesenteric area were significantly correlated with total LN counts. Although there was no significant impact on the length of resected segments, the colonic mesenteric area can be used alone as a measure for the assessment of the nodal yield in colon cancer.

#Colonic neoplasms #Lymph node dissection #Colectomy

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