Related Experiment Video
Updated: Feb 13, 2026

Endoscopic Vacuum Therapy for the Treatment of Anastomotic Leakage after Total Gastrectomy with Esophagojejunostomy
Published on: August 22, 2025
Non-visible colovesical fistula located by cystoscopy and successfully managed with the novel Padlock® device for
Benito Velayos1, L Del Olmo2, L Merino3
1Department of Gastroenterology, Hospital Clínico de Valladolid, Av Ramón y Cajal 3, 47003, Valladolid, Spain. benitovelayos@hotmail.com.
Introduction:
The development of novel mechanical endoscopic closure systems allows now the management of some gastrointestinal fistula types in a minimally invasive way. However, the correct location of the fistulous tract is essential to achieve successful endoscopic closure.
Case Report:
A 69-year-old woman with high risk for surgery presented with recurrent cystitis, pneumaturia, and enteruria 2 months after medical-treated diverticulitis. Computerized tomography demonstrated colovesical fistula but colonoscopy could not locate the fistulous opening. A cystoscopy was performed and the fistulous tract was shown using a guidewire. Then, a novel over-the-scope clip device Padlock® system was released in the sigmoid colon, with successful endoscopic closure through this not previously described collaborative approach between urologists, surgeons, and gastroenterologists.
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