Long-term consequences of not closing the mesenteric defect after laparoscopic right colectomy

Area of Science:

• Gastroenterology
• Surgical Oncology
• Minimally Invasive Surgery

Background:

• Mesenteric defect closure after laparoscopic right colectomy is debated.
• This study investigates outcomes without routine mesenteric defect closure.

Purpose of the Study:

• To evaluate the consequences of not closing the mesenteric defect after laparoscopic right colectomy for neoplasia.

Main Methods:

• Prospective analysis of 530 patients undergoing laparoscopic right colectomy without mesenteric defect closure.
• Data collected over 7 years, including clinical assessment and imaging for small bowel obstruction.
• Statistical analysis using Student t test and Mann-Whitney U test.

Main Results:

• 0.8% of patients had complications attributed to the mesenteric defect (internal herniation, anastomosis torsion).
• 4.9% experienced small bowel obstruction during follow-up; 4 cases were directly linked to the mesenteric defect.
• Males showed a higher incidence of small bowel obstruction (69% vs 43%).

Conclusions:

• Routine closure of the mesenteric defect after laparoscopic right colectomy for neoplasia is not supported by these findings.
• Further long-term studies are required to fully understand the implications.