Right-sided hemicolectomy with complete mesocolic excision and modified D3 lymphadenectomy - a pilot study

Area of Science:

• Colorectal Surgery
• Surgical Oncology
• Minimally Invasive Surgery

Background:

• Complete mesocolic excision (CME) is a standard for right-sided colon cancer.
• The optimal extent of lymphadenectomy (e.g., D2 vs. D3) remains debated.
• Modified D3 lymphadenectomy aims to increase lymph node yield for improved staging.

Purpose of the Study:

• To evaluate the safety and efficacy of robotic-assisted CME with modified D3 lymphadenectomy.
• To compare outcomes with open surgery and standard D2 lymphadenectomy.
• To assess oncological and perioperative results in right-sided colon cancer.

Main Methods:

• A pilot study comparing 28 patients undergoing robotic-assisted modified D3 lymphadenectomy with 59 patients undergoing open D2 lymphadenectomy.
• Patients had carcinoma of the cecum and ascending colon.
• Groups were matched for comparable input parameters.

Main Results:

• Robotic approach had longer operating time but comparable blood loss.
• Significantly higher lymph node retrieval in the robotic D3 group (P=0.002).
• Shorter postoperative hospital stay (P=0.011) and fewer surgical site infections (0% vs. 17%) in the robotic group.

Conclusions:

• Robotic-assisted CME with modified D3 lymphadenectomy is a safe and feasible approach for right-sided colon cancer.
• This technique enhances lymph node retrieval without increasing major perioperative complications.
• The method shows potential for improved oncological staging and reduced patient recovery time.