Related Experiment Video
Updated: Jan 22, 2026

Technical Aspects of the Mouse Aortocaval Fistula
Published on: July 11, 2013
Is suturing of the bladder defect in benign Enterovesical fistula necessary?
Ł Dziki1, M Włodarczyk1,2, A Sobolewska-Włodarczyk2
1Department of General and Colorectal Surgery, Medical University of Łódź, Łódź, Poland.
Background:
Enterovesical fistula (EVF) is a abnormal connection between the intestine and the bladder. The aim of the study was to analyze whether closure of the defect in the bladder wall during surgery is always necessary.
Methods:
Fifty-nine patients with benign EVF undergoing surgical treatment were enrolled. A one-stage surgical procedure was performed in all patients. After the separation of the diseased bowel segment, methylene blue was introduced. Through a catheter into the bladder. Only patients with urinary bladder leakage were sutured.
Results:
The most common intestinal fistula involving the urinary bladder was colovesical fistula, observed in 53% of cases. Two-thirds of patients had diverticular disease as the underlying pathology. There was no relationship between suturing of the bladder and perioperative complications. Recurrent EVF was observed in one patient with bladder suturing and in two patients without suture.
Conclusions:
These findings suggest that closure of the bladder defect is not necessary in cases where a leak is not demonstrated from the bladder intraoperatively. This study is limited by its retrospective design and small numbers and a randomized controlled trial is recommended to answer this question definitively.
Related Concept Videos
Sutures of the Skull
Sutures are immobile joints between adjacent bones of the skull. The narrow gap between the bones is filled with dense, fibrous connective tissue that unites the bones. The long sutures located between the skull bones are not straight but instead follow irregular, tightly twisting paths. These twisting lines tightly...
Urinary Bladder
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...
Lumber Defects
Shakes are minor fractures that run along or across the wood's annual rings, while wane is...
Anatomy of the Genitourinary System II: Bladder and Urethra
Imaging Studies I: Kidney, Ureter, and Bladder Studies
Nondisjunction

