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ureteral stricture

Jérôme Gas, François-Xavier Nouhaud, Mathieu Roumiguié, Séverine Lagarde, Marie-Charlotte Delchier, Éric Huyghe, Michel Soulié, Xavier Gamé, Jean-Baptiste Beauval
PURPOSE: To evaluate the effectiveness of balloon nephrostomy (BN) for treating urinary tract fistulas. MATERIALS AND METHODS: In a single-center retrospective analysis, 56 patients were treated using BN between 2003 and 2014. All causes of urinary tract fistula were included. We assessed the effectiveness of drainage, complications, and the types of reconstruction surgery used. Success was defined as fistula closure without surgery. RESULTS: The cohort consisted of 25 males (54%) and 31 females (55%) with a median age of 63 years who underwent BN for a urinary fistula secondary to surgery, i...
March 15, 2018: International Urogynecology Journal
Shawn Dason, Alvin C Goh
PURPOSE OF REVIEW: More than a century of development has led to contemporary urinary diversion. It is paramount that robotic intracorporeal diversions uphold the principles defined by open surgery. RECENT FINDINGS: In this review, we discuss the fundamental open surgical principles that have led to contemporary techniques of urinary diversion. We then outline the technical aspects of several recently described robotic intracorporeal urinary diversions in the context of these surgical principles...
March 15, 2018: Current Urology Reports
Ahmed Mohey, Mohamed Alhefnawy, Mostafa Mahmoud, Rabea Gomaa, Tarek Soliman, Shabieb Ahmed, Yasser A Noureldin
INTRODUCTION: To assess the conversion rate during fluoroless-ureteroscopy (URS) and evaluate the feasibility, safety, and efficacy of fluoroless-URS as a definitive management of distal ureteral calculi. MATERIAL AND METHODS: Between May 2013 and August 2015, patients with radio-opaque distal ureteral calculi of ≤ 1 cm in size were randomized to undergo fluoroless-URS or standard URS. Patients with previous ureteral surgery, ureteral kinking, ureteral stricture, single kidney, additional proximal ureteral or renal calculi, uncontrolled coagulopathy, and/or congenital anomalies of the urinary tract were excluded...
February 2018: Canadian Journal of Urology
Benjamin West, Mohamed Keheila, Jason C Smith, Alexander Erskine, Samuel R Abourbih, Nazih Khater, D Duane Baldwin
Objective: Cryoablation of renal tumors adjacent to the ureter or pelvicalyceal system carries risks for thermal injury of the collecting system. Although cold antegrade perfusion has been described for radiofrequency ablation, warm saline perfusion for renal cryoablation has not been well-characterized. The purpose of this study was to determine the safety and feasibility of antegrade and retrograde warm saline perfusions during percutaneous renal cryoablation. Material and methods: A retrospective review was performed on 136 patients treated with percutaneous renal cryoablation at a single academic institution between 2009 and 2015...
March 2018: Turkish Journal of Urology
Philippa R Pavia, Allyson C Berent, Chick W Weisse, Dana Neiman, Kenneth Lamb, Demetrius Bagley
OBJECTIVE To describe the technique and short- and long-term outcomes for dogs undergoing double-pigtail ureteral stent placement for treatment of benign ureteral obstruction. DESIGN Retrospective case series. ANIMALS 44 dogs (57 ureters). PROCEDURES Medical records of dogs that underwent ureteral stenting for treatment of benign ureteral obstruction between 2010 and 2013 were reviewed. Signal-ment, history, pertinent diagnostic imaging results, endourologic and post-procedural details, duration of hospitalization, complications, and outcome (short term, 7 to 30 days; long term, > 30 days) were recorded...
March 15, 2018: Journal of the American Veterinary Medical Association
Megan Cray, Allyson C Berent, Chick W Weisse, Demetrius Bagley
CASE DESCRIPTION 4 cats were examined because of ureteral obstruction. CLINICAL FINDINGS Clinical and clinicopathologic abnormalities were nonspecific and included anorexia, lethargy, weight loss, anemia, leukocytosis, neutrophilia, lymphopenia, and azotemia. A diagnosis of pyonephrosis was made in all cats. The presence of bacteriuria was confirmed by means of urinalysis in 2 cats, bacterial culture of a urine sample obtained by means of preoperative cystocentesis in 2 cats, and bacterial culture of samples obtained from the renal pelvis intraoperatively in 3 cats...
March 15, 2018: Journal of the American Veterinary Medical Association
Wei Shan Lim, Kenneth Chen, Tsung Wen Chong, Gordon Minru Xiong, William R Birch, Jisheng Pan, Bae Hoon Lee, Pei Shan Er, Abhijit Vijay Salvekar, Subbu S Venkatraman, Yingying Huang
A bilayer swellable drug-eluting ureteric stent (BSDEUS) is engineered and implemented, as a sustained drug delivery platform technology that enhances localized drug delivery to the highly impermeable urothelium, for the treatment of urothelial diseases such as strictures and carcinomas. On deployment, the device swells to co-apt with the ureteric wall and ensure drug availability to these tissues. BSDEUS consists of a stent spray-coated with a polymeric drug containing polylactic acid-co-caprolactone (PLC) layer which is overlaid by a swellable polyethylene glycol diacrylate (PEGDA) based hydrogel...
February 20, 2018: Biomaterials
Jacob W Lucas, Eric Ghiraldi, Jeffrey Ellis, Justin I Friedlander
PURPOSE OF REVIEW: This review focuses on the role of endoscopic treatment of ureteral stricture disease (USD) in the era of minimally invasive surgery. RECENT FINDINGS: There is a relative paucity of recent literature regarding the endoscopic treatment of USD. Laser endopyelotomy and balloon dilation are associated with good outcomes in treatment-naïve patients with short (< 2 cm), non-ischemic, benign ureteral strictures with a functional renal unit. If stricture recurs, repetitive dilation and laser endopyleotomy is not recommended, as success rates are low in this scenario...
March 2, 2018: Current Urology Reports
Ziho Lee, Aryeh Y Keehn, Matthew E Sterling, Michael J Metro, Daniel D Eun
PURPOSE OF REVIEW: We review the buccal mucosa graft (BMG) ureteroplasty literature to evaluate its utility in the management of ureteral strictures, identify indications for which it is particularly useful, and highlight refinements in surgical technique. RECENT FINDINGS: Recent reports have described the efficacy of robotic BMG ureteroplasty and the utilization of near-infrared fluorescence to assist with precise identification of the ureteral stricture margins...
March 1, 2018: Current Urology Reports
Arvind P Ganpule, Abhishek G Singh, Mohammed Rafiqul Islam, Parag Sonawane, Ravindra B Sabnis, Mahesh R Desai
Ureteral stricture resulting from chronic inflammations such as tuberculosis, recurrent stone disease and multiple endourological interventions are complex in nature; these may lead to severe adhesions to surrounding structures. Endourological management of these cases is difficult with poorer outcomes. In such situations, reconstructive surgical corrections remain a reliable option. We describe the technique of onlay and inlay buccal mucosal graft ureteroplasty using a robotic platform in management of complex ureteral strictures...
February 27, 2018: Journal of Minimal Access Surgery
Jin Wen, Zhi G Ji, Han Z Li
BACKGROUND: Treatment with the combination of ureteroscopy and thulium laser ablation may provide an alternative to radical nephroureterectomy (RNU) for patients with upper tract urothelial carcinoma (UTUC). The purpose of this study was to investigate the efficacy and safety of this technique. METHODS: We performed a retrospective review of the data for patients who were treated surgically for upper tract urothelial carcinoma in a single center. It included 32 patients treated by endoscopic thulium laser resection and 107 patients treated by radical nephroureterectomy (RNU)...
February 17, 2018: BMC Cancer
E Arpali, T Al-Qaoud, E Martinez, R R Redfield, G E Leverson, D B Kaufman, J S Odorico, H W Sollinger
We aimed to evaluate the influence of urological complications occurring within the first year after kidney transplantation on long-term patient and graft outcomes, and sought to examine the impact of the management approach of ureteral strictures on long-term graft function. We collected data on urological complications occurring within the first-year post-transplant. Graft survivals, patient survival, and rejection rates were compared between recipients with and without urological complications. Male gender of the recipient, delayed graft function, donor age were found to be significant risk factors for urological complications after kidney transplantation (p<0...
February 15, 2018: American Journal of Transplantation
Stefano Salciccia, Alessandro Sciarra, Milena Polese, Alpi Giorgio, Martina Maggi, Alessandro Gentilucci, Mauro Ciccariello, Giuseppe D'Eramo, Houssain Shahabadi, Silvia Lai, Gian Piero Ricciuti
Background: Ureteral strictures are a recurrent chronic condition that leads to severe side effects and poor quality of life. Management of ureteral stricture is a great challenge for urologists and no specific guidelines exist. Retrograde Allium® ureteral stent (AUS) is a newly developed ureteral stent to treat either bulbar urethral or ureteral stenosis. Case Presentation: We describe a case of a 74-year-old Caucasian adult male presenting with a severe ureteral stricture secondary to an ureteroscopy for stone disease...
2018: Journal of Endourology Case Reports
Saya Kurata, Shohei Tobu, Kazuma Udo, Mitsuru Noguchi
Background: The experience with uretero-arterial fistulas has been limited. However, the aggressive treatment of pelvic tumors with surgical resection and radiotherapy, along with liberal use of ureteral catheters, has been attributed to an increase in their incidence. Unless they are promptly diagnosed and treated, uretero-arterial fistulas are associated with considerably high rates of morbidity and mortality. Urologists need maintain a high degree of suspicion for uretero-arterial fistula in high-risk patients...
2018: Journal of Endourology Case Reports
N V Polyakov, N G Keshishev, Sh Sh Gurbanov, M V Grigoreva, S A Serebryannyi, A V Kazachenko, B Ya Alekseev
AIM: To evaluate the effectiveness of laparoscopic repair of primary strictures of ureteropelvic junction (UPJ) depending on baseline renal function of the ipsilateral kidney. MATERIALS AND METHODS: The study analyzed results of 134 patients (78 women and 56 men, age from 18 to 56 years) who underwent various types of laparoscopic repair of the UPJ stricture from 2012 to 2015. Depending on the surgical technique all patients were divided into three groups: group 1 (n=34) underwent spiral flap technique by Culp and DeWeerd, group 2 (n=59) - Anderson-Hynes pyeloplasty and group 3 (n=41) had antevasal dismembered pyeloplasty...
December 2017: Urologii︠a︡
A Ch Usupbaev, R M Kurbanaliev, G S Chernetsova, I V Kolesnichenko, B M Sultanov, N M Myrzakanov, A O Zolotukhin, N A Vagner
AIM: To evaluate the results of surgical reconstruction of the upper urinary tract using an autograft of testicular tunica vaginalis in experimental animals. MATERIALS AND METHODS: The article presents the results of partial replacement of the renal pelvis and ureter with an autograft in 25 male dogs. The grafts were harvested by resection of the parietal layer of the testicular tunica vaginalis, which was transplanted into the region of the pelvi-ureteric junction and the proximal ureter...
December 2017: Urologii︠a︡
Elliot I Grodstein, Christopher Little, Ernesto P Molmenti, Joshua D Mezrich
BACKGROUND: Over the past decade, increases in vascular fellowships and the use of endovascular technology have decreased the general surgery residents' exposure to open vascular surgery. We sought to elucidate whether renal transplant is a safe way to teach general surgery residents the essential tenants of vascular surgery without adversely affecting early patient outcomes. METHODS: All solitary, adult deceased donor kidney transplants performed at the University of Wisconsin from 2011 through 2016 were identified and divided into a resident-assist (RA) and fellow-assist cohorts (FA)...
January 17, 2018: Journal of Surgical Education
Philip Clark May, Ryan S Hsi, Henry H Tran, Marshall Stoller, Ben H Chew, Thomas Chi, Manint Usawachintachit, Brian D Duty, John L Gore, Jonathan D Harper
Purpose Nephrolithiasis is an increasingly common ailment in the United States. Ureteroscopic management has supplanted shockwave lithotripsy as the most common treatment of upper tract stone disease. Ureteral stricture is a rare but serious complication of stone disease and its management. The impact of new technologies and more widespread ureteroscopic management on stricture rates is unknown. We describe our experience in managing strictures incurred following ureteroscopy for upper tract stone disease. Materials and methods Records for patients managed at 4 tertiary care centers between December 2006 and October 2015 with the diagnosis of ureteral stricture following ureteroscopy for upper tract stone disease were retrospectively reviewed...
January 12, 2018: Journal of Endourology
Zahava Vadasz, Jacob Rubinstein, Jacob Bejar, Hilla Sheffer, Sarel Halachmi
OBJECTIVE: A highly sensitive and specific urine marker for the detection of recurrent urothelial cancer and for screening healthy population or people at risk for urothelial cancer has not been found yet. As urine cytology is not sensitive enough, patients with non-muscle-invasive bladder cancer need lifelong follow-up involving multiple invasive cystoscopies. Our aims of study were to examine the expression of semaphorin 3A in urothelial cancer patients and to evaluate semaphorin 3A as a potential marker for urothelial cancer...
December 26, 2017: Urologic Oncology
Hailiu Yang, Ricardo Rios, Joseph Lombardi, Dean Matthew Marella, Allen D Seftel
Background: Ureteroarterial fistulas (UAFs) are rare life-threatening complications of indwelling ureteral stents. Endovascular repair of these fistulas is now commonly used but the long-term outcomes are unknown. Case Presentation: We present a 51-year-old African American female with history of cervical cancer status after a hysterectomy and radiation. She has bilateral ureteral strictures that were managed with chronic, indwelling ureteral stents. She subsequently developed a right UAF and was treated with an endovascular stent to the external iliac artery...
2017: Journal of Endourology Case Reports
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