Small bowel obstruction after colon resection for benign and malignant diseases

Area of Science:

• Gastroenterology
• Surgical Oncology
• Abdominal Surgery

Background:

• Small bowel obstruction (SBO) is a common complication following colon resection.
• The etiology of SBO post-colon resection can vary, influencing patient outcomes.
• Previous studies have suggested different causes for SBO based on underlying colon disease.

Purpose of the Study:

• To investigate the causes and outcomes of small bowel obstruction in patients who have undergone colon resection.
• To analyze the relationship between the etiology of obstruction and patient morbidity/mortality.
• To provide recommendations for surgical intervention in patients with SBO post-colon resection.

Main Methods:

• Retrospective review of medical records for 118 patients undergoing 120 laparotomies for SBO.
• Analysis of obstruction etiology in relation to prior colon disease (benign, adenocarcinoma, recurrent malignancy).
• Assessment of morbidity and mortality factors, including preoperative delay and operative procedure.

Main Results:

• Benign adhesions were the primary cause of SBO across all patient groups.
• Adhesions caused obstruction in 100% of benign colon disease patients, 82.6% of adenocarcinoma patients, and 30.1% of recurrent malignancy patients.
• Morbidity and mortality were more strongly associated with the obstruction's cause than with delays or surgical approach.

Conclusions:

• Benign adhesions are the predominant cause of small bowel obstruction after colon resection, irrespective of the initial diagnosis.
• The etiology of obstruction, not preoperative delay, is the key determinant of patient morbidity and mortality.
• Aggressive early surgical intervention is advised for patients with metastatic colorectal carcinoma presenting with small bowel obstruction due to the high likelihood of adhesive causes.