The Minimum Length of Colonic Segment to be Removed for Adequate Lymph Node Dissection in Colorectal Cancer
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O RIGINAL A R T I CL E
The Minimum Length of Colonic Segment to be Removed for Adequate Lymph Node Dissection in Colorectal Cancer Mehmet Akif Üstüner1, Bülent Aksel2, Lütfi Dogan2
Abstract Aim: The present study was carried out to identify the minimum length of colonic segment that should be removed
to ensure adequate lymph node dissection in colorectal cancer. Method: The study involved a retrospective review of 332 patients with stage 1–3 colorectal cancer, who were operated on between 2012 and 2017. Tumour localization, operation type, total length of bowel removed, number of removed lymph nodes and pathological examination results were entered into and analysed using SPSS. Results: The number of removed lymph nodes was 12 or lower in 150 of the 332 patients who underwent surgery. Accordingly, the cut-off value for the length of bowel needed to remove at least 12 lymph nodes was studied in 150 patients. The AUC values calculated based on the optimal cut-off values in patients that underwent a right hemicolectomy (21 cm), a laparoscopic right hemicolectomy (31 cm), a laparoscopic left hemicolectomy (16 cm) and a laparoscopic low anterior resection (24 cm) were found to be statistically significant (p
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