Small intestinal fistula caused by drainage tube removal: A case report

Small intestinal fistulas following drainage tube removal are rare but can cause significant morbidity. These complications are most commonly seen in the context of postoperative abdominal surgery. A small intestinal fistula secondary to drainage tube removal after sigmoid colon cancer surgery is particularly uncommon. Unfortunately, the diagnosis is often delayed due to nonspecific symptoms and the rarity of the condition.

We report a case of an 80-year-old man who developed a small intestinal fistula following the removal of an abdominal drainage tube after radical surgery for sigmoid colon cancer. On postoperative Day 8, the patient experienced abdominal pain and nausea immediately after the drainage tube was removed. Imaging studies and contrast injection confirmed the presence of a small intestinal fistula. The patient underwent a second surgery for partial small intestine resection and end-to-end anastomosis, followed by supportive care.

This case highlights the importance of recognizing the potential for small intestinal fistulas following drainage tube removal in postoperative patients. Prompt diagnosis and surgical intervention can lead to successful management and recovery.