Internal fistulas in Crohn's disease.

Area of Science:

• Gastroenterology
• Surgical Gastroenterology
• Inflammatory Bowel Disease

Background:

• Crohn's disease frequently causes internal fistulas, posing treatment dilemmas.
• The optimal timing for surgical intervention in these cases remains debated.
• Previous approaches often advocated immediate surgery for all internal fistulas.

Purpose of the Study:

• To evaluate the outcomes of immediate versus delayed surgical intervention for internal fistulas in Crohn's disease.
• To assess the necessity of immediate surgery, particularly for fistulas involving the bladder.

Main Methods:

• Retrospective review of 59 patients with 83 internal fistulas treated between 1971 and 1982.
• Categorization of fistulas by origin (small intestine, large bowel) and involvement (bladder).
• Comparison of outcomes between patients undergoing immediate surgery, delayed surgery, and non-operative management.

Main Results:

• Of 59 patients, 36 had immediate surgery, 15 required later surgery, and 8 were managed non-operatively.
• Surgical treatment resulted in one postoperative death and 46 patients remaining well.
• Non-operative management for nine fistulas (four involving the bladder) led to good outcomes in seven patients.

Conclusions:

• Internal fistulas in Crohn's disease, including those involving the bladder, do not mandate immediate surgery.
• Treatment policy should be individualized based on clinical presentation and symptom severity.
• Conservative management can be effective for select patients with internal fistulas.