Utilization of point-of-care ultrasound to evaluate for enterovesical fistula.

Enterovesical fistula formation is a relatively rare disease process although a common complication for patients with inflammatory bowel disease (IBD), notably Crohn's disease. Enterovesical fistulas most commonly arise from diverticulitis (65-80%), cancer (10-20%), or Crohn's disease (5-7%). An increasing amount of evidence supports the use of ultrasonography as the primary imaging method for the monitoring of complications in individuals with a documented history of IBD. Our case report presents a 30-year-old female with a history of Crohn's disease who presented to the Emergency Department with concern for possible enterovesical fistula formation. Using bedside gray-scale ultrasonography, a fistulous tract clearly visualizing air bubbles and fecal matter actively moving from bowel to the bladder through the fistula was visualized confirming the diagnosis of an enterovesical fistula. While CT imaging is instrumental in identifying mural and extramural complications of IBD, performing ultrasonography in patients with IBD serves as an efficient, inexpensive, and noninvasive diagnostic aid for the diagnosis of enterovesical fistula.

An unusual presentation of penetrating bladder injury with vesicocutaneous fistula: a case report.

BACKGROUND: Blunt trauma to the urinary bladder is common with penetrating injury being a rare occasion. Most common entry pint for penetrating injuries includes buttock, abdomen and perineum with thigh being rare. There are a number of complications that may develop as a result of penetrating injury with vesicocutanous fistula being a rare occurrence that usually presents with typical sign and symptoms. CASE PRESENTATION: We present a rare case of penetrating bladder injury through medial upper thigh as an entry point that had complicated into vesicocutaneous fistula with atypical presentation of long-standing pus discharge that had been managed by incision and drainage several times with no success. MRI demonstrated a presence of fistula tract and a foreign body (piece of wood) in-situ confirmed the diagnosis. CONCLUSION: Fistulas are a rare complication of bladder injuries and can cause negative impact on the quality of life of patients. Delayed urinary tract fistulations and secondary thigh abscesses are uncommon therefore a high index of suspicion is needed for early diagnosis. This case emphasizes the importance of radiological tests in aiding the diagnosis and ultimately proper management.

Repair of vesicouterine fistula by not using traditional O' connor method.

A 25-year-old female patient visited our clinic with complaint of cyclic haematuria. She had previous two Caesarean Sections at a secondary care hospital. Her complete urinalysis showed abundant red blood cells. Through computed tomography a fistula tract between the posterior wall of the bladder and the anterior wall of the lower uterine segment was diagnosed. The Cystoscopy revealed a fistulous opening with a diameter of nearly 1.5 cm localized between the bladder and uterine cavity. Fistulae was repaired by abdominal approach without transection of bladder. Surgery was performed by mobilization of bladder and wide anterior uterine dissection. A 2cm defect in the lower uterine segment was identified and was closed with 0 polyglycolic acid suture. Bladder defect was repaired in two layers and omental tissue flap was placed between the two surfaces. At 6 months follow the up patient was asymptomatic.

Successful Endovascular Repair of a Ruptured Common Iliac Artery Aneurysm Associated with an Ileal Pouch Neobladder Fistula.

A spontaneous fistula between a ruptured common iliac artery aneurysm and the ileal pouch neobladder is quite rare. We present the case of a 74-year-old man presenting with intense abdominal pain and massive hematuria. Computed tomography angiography revealed a ruptured common iliac artery aneurysm-ileal pouch neobladder fistula. His hemodynamics was unstable; emergent endovascular aortic repair was performed successfully. Infection and dysfunction of the neobladder were avoided owing to appropriate management.

Spontaneous vesicorectal fistula: a rare complication of neurogenic bladder.

BACKGROUND: We report a rare case of spontaneous vesicorectal fistula. CASE PRESENTATION: A 13-year-old female spina bifida patient who complained of fecal and urinary incontinence was eventually diagnosed with a spontaneous vesicorectal fistula. We hypothesized that infection, neurogenic bowel and neurogenic bladder caused her vesicorectal fistula. The patient refused the operation, and she is currently in a delicate balance. CONCLUSIONS: Early repair of the fistula is necessary. The treatment of neurogenic bladder after fistula repair is difficult and deserves further observation and follow-up.

Vesicouterine Fistula and Fetus in Bladder: A Case Report.

BACKGROUND: Vesicouterine fistulas are the rarest of all urogenital fistulas, with most cases occurring after cesarean section. CASE: A 38-year-old woman in rural Zimbabwe presented at 20 weeks gestation with a suspected fetus in the urinary bladder by transabdominal ultrasonography. This finding was confirmed intraoperatively together with a vesicouterine fistula. Cesarean section 20 years earlier was the only risk factor. Diagnosis was delayed for lack of access to appropriate imaging and a tertiary facility. CONCLUSION: A vesicouterine fistula is a rare presentation in the context of an advanced health care system. To our knowledge, this is the fourth case report of a fetus in the bladder secondary to vesicouterine fistula. Patient morbidity in this case possibly could have been avoided with earlier diagnosis and access to care.

Selective use of cystogram following segmental bowel resection in patients with enterovesical fistula.

AIM: Patients undergoing resectional surgery for enterovesical fistulas generally have an indwelling urinary catheter postoperatively to prevent a recurrent fistula. The aim of this study was to assess the role of a cystogram as part of the postoperative follow-up of such surgery, when it should be performed and for how long the bladder should be drained after surgery. METHOD: A retrospective single-centre study of all patients undergoing ileocaecal or sigmoid resection for surgery for enterovesical fistula with the primary end-point of recurrent urinary fistula. RESULTS: Between 1994 and 2015, 46 patients (23 male; mean age 55.4 ± 18.3 years) underwent surgery [23 (50%) for diverticular disease, 16 (34.8%) for Crohn's disease, five (10.9%) for malignancy and two (4.3%) for previous radiotherapy]. Closure of the bladder fistula was by simple suture in 21 (46%) patients and with an omental pedicle in 16 (36%). Overall median duration of urinary drainage was 10.5 [interquartile range (IQR): 7.3-14.0] days. A postoperative cystogram was performed in 26 (57%) patients after a median of 10.0 (IQR: 8.0-13.0) days. This demonstrated persistent leakage in three patients, of whom two had undergone surgical closure of the bladder. This group required prolonged drainage (7, 19 and 40 days). One patient who had undergone surgery following radiotherapy for urothelial cancer developed a recurrent malignant fistula at 9 months, even though the postoperative cystogram had been negative. CONCLUSION: This study suggests that a routine postoperative cystogram after surgery for enterovesical fistula may not be necessary for all patients if the bladder is drained for 1-2 weeks after bowel resection.

A case report of endorectal displacement of a right ureteral stent following radiochemotherapy and Bevacizumab.

BACKGROUND: The angiogenesis inhibitor monoclonal antibody Bevacizumab is presently the standard treatment for numerous neoplasms but particular toxicities are emerging, such as hypertension, haemorrhage, thromboembolism, gastrointestinal perforation, fistulae, and delayed wound healing. The addition of Bevacizumab to radio and chemotherapy has improved the overall survival rate in patients with metastatic, persistent or recurrent cervical carcinoma. However an increased risk of enteric or urinary fistula formation has been documented, related to hypoxia which is induced by the inhibition of angiogenesis. Moreover, previous pelvic surgery, repeated ureteral stenting and radiation are additional risk factors. CASE PRESENTATION: We describe the remarkable case of a right ureteral stent displacement inside the rectum lumen in a patient treated with Bevacizumab for pelvic recurrence of cervical cancer. The patient was referred to our Urology Department with urinary sepsis and bilateral hydronephrosis. Right ureteral stent substitution was planned; at cystoscopy the distal loop of the stent was not visualized inside the bladder. The presence of the distal loop of the right ureteral inside the rectum was clearly demonstrated with a CT scan. CONCLUSIONS: Since Bevacizumab is increasingly used in the treatment of gynaecological neoplasms and indwelling ureteral stents are often required to treat or prevent ureteral compressions, similar cases are likely to be diagnosed and this complication should be considered in the management of advanced pelvic cancers.

Colovesical fistula: review on conservative management, surgical techniques and minimally invasive approaches.

Colovesical fistula (CVF) is an abnormal communication between bowel and urinary bladder. Main causes are represented by complicated diverticular disease, colonic and bladder cancer and iatrogenic complications. Diagnosis is often based on patognomonic signs: faecaluria, pneumaturia and recurrent urinary tract infections. Treatment of CVF includes non-surgical and surgical strategy. The non-surgical treatment is reserved to selected patients who are unfit for surgery. Surgery of CVFs is determined by the site of the colonic lesion and patient's comorbidity. However the surgical one-stage approach should be preferred, reserving the multi-stage procedure in patients with a pelvic abscess, or with advanced malignancy, or previous radiation therapy. The sole defunctioning stoma may be an option to improve the quality of life in patients unfit for bowel resection. In open surgery the standard operative management consists in resection and anastomosis of the involved bowel segment and closure of the bladder. Laparoscopic treatment of CVFs is feasible and safe if performed by skilled surgeons. Robotic surgery for CVF treatment is safe and feasible similarly to laparoscopic one and it seems to reduce the conversion rate with respect to laparoscopy. However, further studies are needed to evaluate the advantages of robotic surgery over laparoscopy in the management of CVF. Currently, in Literature it is still debated which is the best surgical approach for CFV treatment due to the lack of RCTs and CCTs, the small sample size and the short follow-up. Further studies with higher quality and larger sample size are necessary to state the gold standard surgical treatment of CVFs.

Enterovesical fistula and acute pyelonephritis in renal transplantation. Role of ultrasound.

The enterovesical fistula is a communication between the urinary tract and the colon and is a rare complication of various inflammatory and cancer diseases. The most frequent cause is represented by diverticulitis of the sigmoid colon and less frequently from Crohn's disease, tumors of the colon and bladder, trauma, radiation therapy and appendicitis. In this report we describe the occurrence of an enterovesical fistula in a patient with renal allograft from a cadaveric donor, which onsetted with signs of acute pyelonephritis and pneumaturia due to diverticulitis of the sigmoid colon, clinically silent. The ultrasound in the diagnosis of enterovesical fistula, yet with a minor role compared to computed tomography (CT), is fundamental being always the first level examination.

Diagnosis of Pediatric Appendicovesical Fistula by Contrast-enhanced Ultrasound: A Case Report.

Appendicovesical fistula is a rare complication associated with appendicitis, Crohn's disease, or appendiceal tumors, posing significant diagnostic challenges. We reported a pediatric case of appendicovesical fistula that remained undiagnosed by non-contrast computed tomography, fluoroscopic voiding cystourethrography (VCUG). Although identified during cystoscopy, its connection to the fistula site could not be determined. However, the transvesical contrast-enhanced ultrasound clearly demonstrated the presence of fistula. Subsequently, laparoscopic appendectomy and bladder repair were performed successfully, leading to complete recovery in the patient. To our knowledge, this is the first reported diagnosis of appendicovesical fistula in children using contrast-enhanced ultrasound.