Robot-assisted laparoscopic resection of descending colon carcinoma with D3 lymphadenectomy

Overview

This report presents a standardized robot-assisted laparoscopic surgical technique for descending colon cancer involving D3 lymphadenectomy using a triple bipolar method and intracorporeal delta anastomosis. The procedure demonstrated efficient operative times and minimal blood loss, highlighting its feasibility and potential advantages in preserving critical vascular structures.

Background

Descending colon cancer is a less common subtype of colorectal cancer, and surgical approaches have not been fully standardized. Key challenges include performing extensive lymph node dissection around the inferior mesenteric artery root (station 253 lymph nodes) while preserving the artery and managing variable tumor locations that may require mobilization of the splenic flexure or rectum. Robot-assisted laparoscopic surgery (RALS) offers enhanced visualization and precision, which can be leveraged to address these challenges effectively. The described technique utilizes a triple bipolar method combined with intracorporeal delta anastomosis to optimize surgical outcomes.

Data Highlights

Key Findings

• The triple bipolar technique facilitates precise dissection and lymphadenectomy including station 253 lymph nodes around the inferior mesenteric artery.
• Intracorporeal delta anastomosis enables minimal dissection and may avoid the need for splenic flexure or rectal mobilization.
• Docking from the right side with a 5-port configuration and Pfannenstiel incision optimizes surgical access and ergonomics.
• The presence of a vessel sealer on the 4th robotic arm allows efficient mesenteric and inferior mesenteric vein dissection without instrument changes.
• The procedure demonstrated a total operating time of 215 minutes, console time of 183 minutes, and minimal blood loss of 15 ml, indicating procedural efficiency and safety.

Clinical Implications

This standardized robot-assisted approach offers a reproducible and minimally invasive option for descending colon cancer resection with comprehensive lymphadenectomy. The technique's ability to preserve the inferior mesenteric artery and potentially avoid extensive mobilization may reduce operative trauma and improve recovery. Surgeons may consider adopting this method to enhance precision and outcomes in complex descending colon cancer surgeries.

Conclusion

The described robot-assisted laparoscopic technique using the triple bipolar method and intracorporeal delta anastomosis is a feasible and effective approach for descending colon carcinoma with D3 lymphadenectomy. It combines surgical precision with minimal invasiveness, potentially setting a new standard for this challenging procedure.

References

1. JSCCR Guidelines -- Japanese Society for Cancer of the Colon and Rectum