Colovesical fistula: should it be considered a single disease?

Area of Science:

• Gastroenterology
• Surgical Oncology
• Colorectal Surgery

Background:

• Colovesical fistulae represent abnormal connections between the colon and bladder.
• Etiologies range from benign conditions like diverticular disease to malignant neoplasms.
• Clinical presentation can be similar across different causes, complicating diagnosis and management.

Purpose of the Study:

• To compare the management strategies and clinical outcomes of patients diagnosed with colovesical fistulae.
• To analyze differences in treatment approaches and patient outcomes based on the underlying etiology of the fistula.

Main Methods:

• A retrospective analysis of 55 patients treated for colovesical fistulae between 2002 and 2012.
• Data collected included patient demographics, etiology, surgical management, hospital stay duration, and postoperative complications.
• Statistical comparison of outcomes among fistulae of different causes.

Main Results:

• Diverticular disease and recto-sigmoid cancer were the most frequent benign and malignant etiologies, respectively.
• Malignancy was associated with significantly higher postoperative complication rates (80% vs. 32%) and prolonged hospital stays (32 vs. 16 days).
• Crohn disease cases showed a higher incidence of multiple intestinal loop involvement requiring resection (60% vs. 6%).

Conclusions:

• Colovesical fistulae, despite similar presentations, exhibit distinct management requirements and outcomes depending on their etiology.
• Malignant fistulae necessitate more aggressive surgical intervention and result in poorer outcomes compared to benign causes.
• Tailoring treatment strategies based on etiology is crucial for optimizing patient management and prognosis.