Delayed Ureteral Fistula After Laparoscopic Lateral Lymph Node Dissection for Rectal Cancer: A Case Report and Literature Review

Background: Ureteral injury is the most common urological complication of pelvic surgery. Lateral lymph node dissection (LLND) is a technically demanding procedure by laparoscopy after neoadjuvant chemoradiotherapy (nCRT), which may increase the risk of ureteral injury because the ureter and hypogastric fascia must be dissected from the vesicohypogastric fascia to preserve them. Case presentation: Here, we present a case of delayed ureteral leakage occurring in a 63-year-old male patient who underwent laparoscopic abdominoperineal resection (APR) with right LLND after nCRT. Ureteral reimplantation (vesicoureteric anastomosis) was performed in this patient due to the failure of the placement of the double J stent. Conclusions: Our case shows that ureteral leakage may occur in the pelvic segment of the ureter in the patient who underwent laparoscopic LLND, especially received preoperative radiotherapy or chemoradiotherapy.

Báo cáo 9 trường hợp can thiệp nội mạch bệnh nhân tiểu máu tại Bệnh viện Trung ương Huế.

APPLICATIONS ENDOVASCULAR EMBOLIZATION FOR PERSISTENT HEMATURIA AT HUE CENTRAL HOSPITAL: NINETEEN CASES SERIES Background: Due to an induced arterio-ureteral fistula is very common after a renal partial surgery, traumatic, biopsy, arteriovenous malformations (AVM), arteriovenous fistulas (AVF). Endovascular interventions include a variety of methods and embolic materials of different circuit nodes for the purpose of completely vascular embolization causing extravasation or reduce the size of the AVM, AVF and False aneurysms, minimizing complications and recurrence. Patient and Method: Nineteen patients were performed the transcatheter arterial embolization (TAE) in Hue central hospital from 10 /2013 to 12 /2018, 19 cases had persistent hematuria. Results: All had excluded extravasation after embolization, no recurrent hematuria. Conclusion: Applications endovascular embolization in persistent hematuria is an effective and safe therapeutic method, it can be widely apply. Keywords: Intravascular intervention, prolonged hematuria

Endovascular treatment of arterio-ureteral fistula with new-generation balloon-expandable stent graft using a 7-French system

Arterio-ureteral fistulas are relatively rare, but a potentially life-threatening condition because of the possible massive bleeding. An 82-year-old woman with a history of hysterectomy and irradiation for uterine cancer was treated with ureteric stents for recurrent bilateral ureteral stenosis. During the adjustments of the stent, removing the right ureteric stent immediately resulted in massive hematuria. Computed tomography showed that the right ureter coursed above and seemed to be connected to the right external iliac artery. From the clinical history and computed tomography findings, an arterio-ureteral fistula between the right external iliac artery and right ureter was strongly suspected. The GORE® VIABAHN® VBX Stent Graft was deployed from the common iliac artery to the external iliac artery via a 7-French femoral system, followed by post-dilatation. The patient did not develop any complications or recurrence of hematuria after the procedure during the 11-month follow-up. The VBX is a useful device, with a low- profile device and a size-adjustable balloon-expandable stent that depended on the individual vessel size for post-dilatation. However, there are several concerns, such as risk of infection, stent thrombosis/stenosis, and chronic outcome while using stent grafts for treatment. Patients with arterio-ureteral fistulas who were treated using stent grafts should be carefully followed up.

Lethal haemorrhage due to erosion of external iliac artery in a patient with ureterovaginal fistula following endometriosis surgery

We present a case report of a patient with laparoscopic surgery of a deep infiltrating endometriosis with a complicative course. In addition to a postoperatively diagnosed ureteral fistula with local inflammation, acute perforation and ultimately lethal bleeding from the adjacent external iliac artery occurred more than 3 weeks after surgery. To the best of our knowledge, a case with the same constellation has not yet been published. A literature review on the rare and comparable complication of a ureteroarterial fistula is discussed in connection with the case.