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Ureteral stent

Karen L Stern, Christopher J Loftus, Steeve Doizi, Olivier Traxer, Manoj Monga
OBJECTIVE: To assess the intermediate- and long-term effect of high-grade ureteral injuries from ureteral access sheaths. METHODS: Patients undergoing ureteroscopy for upper tract calculi were prospectively enrolled at 2 sites from 2010 to 2015. A 12/14 French sheath was used and the ureter was inspected with a flexible ureteroscope during withdrawal of the sheath and recorded. The videos were then evaluated by two blinded endourologists, and any injuries were graded per the Traxer ureteral injury scale...
March 13, 2019: Urology
Yiwei Wang, Mingxi Xu, Wenfeng Li, Yuanshen Mao, Jun Da, Zhong Wang
Forgotten ureteral stents (FUS) is a great threat to both patients and doctors. Applications on smartphones can significantly reduce the incidence of FUS. But existing applications do not have instant notification and consultation functions. To implement those function, we developed a ureteral stent tracking system embedded in a social networking service application, WeChat. "Ureteral Stent Tracking System" was developed on WeChat, a social media application using by 1.4 million active users. The study consecutively enrolled patients who underwent ureteral stent installation from April 2018 to July 2018...
March 14, 2019: Urolithiasis
Sandeep Gupta, Arun Kuamr Maurya, Dilip Kumar Pal
OBJECTIVE: To evaluate surgical outcome and spinal anesthetic feasibility of supine percutaneous nephrolithotomy (PCNL) by tubeless and totally tubeless method. MATERIAL AND METHODS: This observational study included a totally 53 patients. Initial diagnosis of renal stone was based on urinary ultrasonography, kidney, ureter and bladder X-ray, and later confirmed by computed tomography urography. PCNL was done with the patient in Galdakao-modified supine Valdivia position...
December 4, 2018: Turkish Journal of Urology
Jung Jun Kim, Yoon Seok Suh, Deok Hyun Han
To investigate and compare surgical outcomes in totally tubeless percutaneous nephrolithotomy (ttPCNL) patients according to the type of sealant during nephrostomy tract closure, the records of 158 patients who underwent ttPCNL were retrospectively reviewed. Fibrin sealant [Tisseel® ; n = 107, fibrin-only sealant (FS)] or gelatin matrix hemostatic sealant [FloSeal® ; n = 51, gelatin matrix sealant (GS)] was applied during tract closure according to surgeon's preference. On the first postoperative day, computed tomography (CT) was scanned for all patients...
March 14, 2019: Urolithiasis
A Mosayyebi, D Lange, Q Yann Yue, B K Somani, X Zhang, C Manes, D Carugo
Ureteric stents are clinically deployed to retain ureteral patency in the presence of an obstruction of the ureter lumen. Despite the fact that multiple stent designs have been researched in recent years, encrustation and biofilm-associated infections remain significant complications of ureteral stenting, potentially leading to the functional failure of the stent. It has been suggested that "inactive" side-holes of stents may act as anchoring sites for encrusting crystals, as they are associated with low wall shear stress (WSS) levels...
January 2019: Biomicrofluidics
Tamas Szell, Franz Friedrich Dressler, Hanna Goelz, Benjamin Bluemel, Arkadiusz Miernik, Thomas Brandstetter, Frank Scherag, Dominik Stefan Schoeb
No abstract text is available yet for this article.
March 2019: Journal of Endourology
Güven Kahriman, Nevzat Özcan, Aytaç Doğan, Hakan İmamoğlu, Abdullah Demirtaş
PURPOSE: We aimed to present our clinical experience with percutaneous antegrade ureteral stent placement in a single center. METHODS: Electronic records of patients who underwent percutaneous image-guided ureteral stent placement between September 2005 and April 2017 were reviewed. A total of 461 patients (322 males, 139 females; age range, 19-94 years; mean age, 61.4±15 years) were included in the study. Patients were classified into two main groups: those with neoplastic disease and those with non-neoplastic disease...
March 2019: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
Mehmet Özsoy, Bhaskar Somani, Christian Seitz, Julian Veser, Panagiotis Kallidonis
PURPOSE OF REVIEW: Better understanding of sex differences affecting urolithiasis may help us offer tailored treatment strategies to our patients. RECENT FINDINGS: The incidence of urolithiasis is increasing and the male-to-female ratio has decreased from 3 : 1 to 1.3 : 1 between 1970 and 2000. In women, obesity has a larger effect on the risk of developing urolithiasis [odds ratio (OR) 1.35; 95% confidence interval (CI): 1.33-1.37] compared with men (OR 1...
March 6, 2019: Current Opinion in Urology
Sally L Collins, Bahrin Alemdar, Heleen J van Beekhuizen, Charline Bertholdt, Thorsten Braun, Pavel Calda, Pierre Delorme, Johannes J Duvekot, Lene Gronbeck, Gilles Kayem, Jens Langhoff-Roos, Louis Marcellin, Pasquale Martinelli, Olivier Morel, Mina Mhallem, Maddalena Morlando, Lone N Noergaard, Andreas Nonnenmacher, Petra Pateisky, Philippe Petit, Marcus J Rijken, Mariola Ropacka-Lesiak, Dietmar Schlembach, Loic Sentilhes, Vedran Stefanovic, Gita Strindfors, Boris Tutschek, Siri Vangen, Alexander Weichert, Katharina Weizsäcker, Frederic Chantraine
The worldwide incidence of abnormally invasive placenta is rapidly rising following the trend of increasing caesarean delivery. It is a heterogeneous condition and has a high maternal morbidity and mortality rate, presenting specific intra-partum challenges. Its rarity makes developing individual expertise difficult for the majority of clinicians. The International Society for Abnormally Invasive Placenta aims to improve clinicians understanding and skills in managing this difficult condition. By pooling knowledge, experience and expertise gained within a variety of different healthcare systems the society seeks to improve the outcomes for women with abnormally invasive placenta globally...
March 5, 2019: American Journal of Obstetrics and Gynecology
Ill Young Seo, Tae Hoon Oh, Seung Hyun Jeon
Purpose: We present surgical techniques and operative results of laparoscopic reconstruction for patients with retrocaval ureter (RCU) and review similar papers. Materials and Methods: Ten patients with RCU were enrolled in this study from April 2005 to January 2017. The mean age of 7 males and 3 females was 40.5 years old. The chief complaint was flank pain in 6 patients; the remaining patients were detected incidentally. All patients showed hydronephrosis and typical S-shaped deformity of the ureter on imaging studies...
March 2019: Investigative and Clinical Urology
Volkan Ulker, Orcun Celik
Background and Objectives: Remained or forgotten ureteral double-J stents may cause serious complications. Removing of an encrusted, forgotten stent can be challenging. We present our experience with heavily encrusted ureteral stents and discuss the endourologic treatment options as well as their effectivity. Materials and Methods: Eleven men and six women (mean 48.58 ± 14.48 years of age) with 18 encrusted forgotten stents (mean 16.4 ± 13.25 months of indwelling) were treated at our clinic. All patients underwent the operation after negative urine cultures were obtained...
February 26, 2019: Medicina
Yufan Brandon Chen, Birte J Wolff, Kimberly S Kenton, Elizabeth R Mueller
OBJECTIVE: We describe the management and outcomes of ureterovaginal fistulas over a 13-year period and present a treatment algorithm. METHODS: We performed a review of ureterovaginal fistula cases between January 2005 and December 2017 at our tertiary academic center. Demographics, diagnostic approaches, and treatment outcomes were assessed. RESULTS: Nineteen cases of ureterovaginal fistula were identified. Fistulas developed after hysterectomy in 18 cases and cesarean delivery in 1 case...
March 2019: Female Pelvic Medicine & Reconstructive Surgery
Tetsuro Ujihara, Kei Yamamoto, Tsuyoshi Kitaura, Yuichi Katanami, Satoshi Kutsuna, Nozomi Takeshita, Kayoko Hayakawa, Norio Ohmagari
A 75-year-old woman was admitted with urosepsis due to Escherichia coli infection. After improvement with a ureteral stent and antimicrobial agent, she complained of back pain and showed elevated inflammation marker levels. Arthralgia and arthritis of multiple peripheral joints were noted, and radiography indicated cartilage calcification. Magnetic resonance imaging revealed lumbar facet joint effusion. Her symptoms improved with nonsteroidal anti-inflammatory drug administration. Thus, she was diagnosed with calcium pyrophosphate deposition (CPPD)-related facet joint arthritis (FJA) rather than infectious FJA...
February 25, 2019: Internal Medicine
Qianyu Kang, Fengze Jiang, Yang Yu, Bo Yang
Ureteral obstruction caused by extrinsic compression from advanced pelvic malignancies are not unusual in urology, with gynecological origin being the most common. As minimally invasive treatments for malignant ureteral obstruction (MUO), metallic ureteral stents have been promoted to provide long-lasting urinary patency and overcome the inherent limits of traditional double-J stents. In this review, we demonstrated three types of frequently used metal stents, including coiled stents, self-expendable stents and thermo-expendable stents...
February 22, 2019: Minimally Invasive Therapy & Allied Technologies: MITAT
Katherine H Chan, Benjamin M Whittam, Amy Krambeck, Stephen M Downs, Rosalia Misseri, Mark P Cain, William E Bennett
OBJECTIVE: To determine the most cost-effective approach to the management of distal ureteral stones in children given the potential for recurrent renal colic during a trial of passage versus potential stent discomfort and complications of ureteroscopy. METHODS: We developed a decision tree to project costs and clinical outcomes associated with observation, medical explusive therapy (MET), and ureteroscopy for the management of an index patient with a 4mm distal ureteral stone...
February 18, 2019: Urology
Tariq F Al-Shaiji, Majd Alkabbani, Ahmed R El-Nahas, Awad Thahir, Meshari F Almutairi, Abdullatif Al-Terki
INTRODUCTION AND HYPOTHESIS: This study aimed to translate and validate the 8-item overactive bladder questionnaire (OAB-V8). METHODS: Utilizing a multistep process, the English version of the OAB-V8 was translated into Arabic by three urologists and one independent translator. It was validated by asking 46 patients with overactive bladder and 58 healthy individuals to complete the questionnaire. Healthy individuals were involved in establishing the discrimination validity...
February 20, 2019: International Urogynecology Journal
Sam Tilborghs, Donald Vaganée, Stefan De Wachter, Lucien Hoekx
A double J stent (DJS) is the main therapy for ureteral obstruction when conservative treatment fails. Antegrade migration in the bladder - or retrograde migration in the ureter - are well-known complications. We present a case with intravascular migration of a DJS into the inferior vena cava. Inferior venocavagraphy confirmed the position of the stent, and thrombus formation was excluded at its tip. The stent was retracted endoscopically. After the procedure, limited contrast leakage was seen at the perforation site on venography...
January 2019: Urology Annals
Hamdy A Aboutaleb, Tamer A Ali, Maher Gawish, Mohamed Kamal Omar
Objectives: To report a technique for ureteroscopic laser lithotripsy (URSL) and retrograde placement of a double-J (DJ) stenting through the ureteroscope working channel without the use of a fluoroscope compared to the conventional technique. Patients and Methods: Between June 2015 and December 2017, 170 patients selected for URSL for treatment of ureteral stones and DJ insertion was evaluated. Patients are divided into two groups according to the use of fluoroscopy...
January 2019: Urology Annals
Volkan Ulker, Hasan Anil Atalay, Ozgur Cakmak, Cem Yucel, Orcun Celik, Zafer Kozacioglu
PURPOSE: Retained or forgotten ureteral stents (FUS) have a potential to cause significant morbidity as well as medico-legal issues and increased cost. We aimed to evaluate the efficacy and usefulness of smartphone-based Ureteral Stent Tracker (UST) application and compare the results with basic appointment card system to prevent FUS, prospectively. MATERIALS AND METHODS: A total of 90 patients who underwent ureteroscopic stone treatment procedure with indwelling DJ stents were equally distributed into two groups...
February 20, 2019: International Braz J Urol: Official Journal of the Brazilian Society of Urology
C A Villanueva
INTRODUCTION: Some infants with obstructed megaureters or ectopic ureters requiring surgery undergo a cutaneous ureterostomy followed by definitive repair after 12 months of age. Since 2013, a 'mini' extravesical reimplant with or without 'mini' tapering (MER) was performed instead of cutaneous ureterostomy in such infants. OBJECTIVE: To describe the technique and outcomes for MER. STUDY DESIGN: This is a retrospective review of infants younger than 6 months who underwent MER...
January 23, 2019: Journal of Pediatric Urology
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