Novel surgical treatment of abdominal aortic aneurysm complicated with primary aorto-colonic fistula: A case report.

RATIONALE

Primary aorto-colonic fistula is a rare complication of an abdominal aortic aneurysm. Without surgical treatment, the associated mortality rate is 100%. Even if patients receive timely surgical treatment, they may still die of complications such as infection.

PATIENT CONCERNS

A 65-year-old male patient was transferred to our hospital because of massive hematochezia and abdominal pain.

DIAGNOSES

Aortic computed tomography angiography demonstrated abdominal aortic aneurysm complicated with aorto-enteric fistula.

INTERVENTIONS

We used a gelatin-impregnated knitted vascular prosthesis to re-establish the aneurysm in its original position combined with local drainage to treat the fistula.

OUTCOMES

The patient had an uneventful postoperative course, and there was no recurrence during the 18-month follow-up.

LESSONS

This surgical treatment is suitable for patients with abdominal aortic aneurysms complicated with primary aorto-colonic fistula in which the intestine is very difficult to repair or resect.