Unlabelled: The individual approach to determining colon resection extension, known as tailored surgery, has been actively discussed for several years. However, despite the consistency and validity of the idea, it still has few followers, primarily due to the lack of high-level evidence confirming the validity of this approach.
Objective: To determine whether the boundaries of the lymphatic outflow area, mapped with indocyanine green, match the lymphogenic metastasis area according to the surgical specimens' pathological study.
Background: It remains unclear whether extended lymphadenectomy provides oncological advantages in colorectal cancer. This multicentre RCT aimed to address this issue.
Methods: Patients with resectable primary colonic cancer were enrolled in four hospitals registered in the COLD trial, and randomized to D2 or D3 dissection in a 1 : 1 ratio.
Background: The extent of lymph node dissection in colonic cancer surgery remains arguable, and evidence from RCTs regarding extended lymph node dissection outcomes is lacking. This study aimed to compare the long-term results of D3 lymph node dissection with those of D2 dissection.
Methods: This is a multicentre RCT.