Comparison of Minimally Invasive Colectomy Between Intra- Versus Extra-Corporeal Anastomosis Technique (COMMIT...

Area of Science:

• Colorectal Surgery
• Minimally Invasive Procedures
• Surgical Outcomes

Background:

• Minimally invasive colectomy offers benefits but requires precise techniques for anastomosis.
• Intracorporeal anastomosis (IA) and extracorporeal anastomosis (EA) are two primary methods for creating bowel connections.
• Comparing outcomes is crucial for optimizing patient care in colectomy procedures.

Purpose of the Study:

• To compare operative and short-term outcomes between IA and EA in minimally invasive colectomy.
• To evaluate the incidence of intraoperative blood loss and other key surgical metrics.
• To determine if IA offers advantages over EA in terms of blood loss and complications.

Main Methods:

• Multicenter cohort study using data from the Kyoto Colorectal Surgery Study Group.
• Included patients who underwent minimally invasive colectomy between 2018 and 2025.
• Propensity score matching was used to balance baseline characteristics between IA and EA groups.

Main Results:

• Intracorporeal anastomosis (IA) was associated with a significantly lower incidence of intraoperative blood loss ≥200 mL (2.5% vs. 4.9%).
• Operative time tended to favor IA in subgroup analyses, despite generally being longer.
• Resection margins, lymph node yield, and postoperative complications were comparable between IA and EA groups.

Conclusions:

• Intracorporeal anastomosis (IA) is linked to reduced significant intraoperative blood loss during minimally invasive colectomy.
• IA may be beneficial in minimizing the occurrence of substantial blood loss events.
• Further research can explore long-term outcomes and specific indications for IA versus EA.