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ureteral catheter

Yong Sung Won, Seung-Ju Lee, Hee Youn Kim, Dong Sup Lee
INTRODUCTION: Narrow working space is a major problem to overcome during retroperitoneoscopic ureterolithotomy. We evaluated initial 5 years experience of retroperitoneoscopic ureterolithotomy for large impacted upper ureteral calculi. PATIENTS AND METHODS: Between January 2011 and December 2015, a total of 37 consecutive patients were evaluated. A 12-mm camera port at middle of midaxillary line and two 5-mm working ports in posterior axillary line were created...
October 21, 2016: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
Naoya Niwa, Takashi Ohigashi, Hideharu Bessho, Takashi Arakawa
A bifid ureter with a distal blind-ending branch is a rare congenital anomaly. Most patients are asymptomatic; only patients with complications, such as infection, vesicoureteral reflux, or stone formation, present symptoms. We describe the case of a patient with urinary stone located in the distal blind-ending branch of a bifid ureter diagnosed during transurethral lithotripsy. Preoperative noncontrast-enhanced computed tomography did not reveal a stone in the distal blind-ending branch of the bifid ureter, but a rigid ureteroscope did; however, it could not reach the stone...
October 17, 2016: Urology
E Morcillo, I Fernández, M Pamplona, F M Sánchez-Margallo, F Soria
The management of ureteral obstruction of malignant origin or complicated benign obstruction continues to be a challenge for the urological community. In this sense, the use of metallic stents could be considered a useful alternative to the conventional drainage techniques, because it accomplishes the resolution of obstruction in a single procedure, without external diversions and without the adverse effects of current diversions. Another important advantage they offer is that they do not need replacement as frequently as double J catheters or nephrostomy tubes require...
October 2016: Archivos Españoles de Urología
V Gómez-Dos Santos, V Díez-Nicolás, L Martínez-Arcos, J J Fabuel-Alcañiz, I Laso-García, S Álvarez-Rodríguez, F de Asís Donis-Canet, V Hevia-Palacios, M Ruiz-Hernández, F J Burgos-Revilla
: Mayor urological complications, fistulae and stenosis, mainly affect the vesicoureteral anastomosis and present in the early post-transplant period. The systematic use of ureteral catheters keeps selecbeing controversial with many groups using them only selectively depending on the existence of pretransplant or intraoperative risk factors. METHODS: We performed a bibliographic review through automatized search in the Medline bibliographic database, as the main bibliographic source, and also in Clinical Key...
October 2016: Archivos Españoles de Urología
I Schwartzmann, J M Gaya, A Breda
OBJECTIVE: The development of smaller diameter ureteroscopes, along with the advance in surgical techniques has allowed ureteroscopy to be progressively less traumatic. The considerable morbidity produced by a ureteral stent makes it advisable to question routine placement. METHODS: We performed a review of the literature searching for systematic reviews, meta-analysis and prospective randomized clinical trials. RESULTS: Three systematic reviews and meta-analysis along with 14 clinical trials were included in our review...
October 2016: Archivos Españoles de Urología
F Soria, E Morcillo, A López de Alda, T Pastor, F M Sánchez-Margallo
One of the main wishes in the field of urinary catheters and stents is to arm them with biodegradable characteristics because we consider a failure of these devices the need for retrieval, the forgotten catheter syndrome as well as the adverse effects permanent devices cause after fulfilling their aim. The efforts focused in new designs, coatings and biomaterials aim to increase the biocompatibility of theses internal devices. Lately, there have been correct advances to answer the main challenges regarding biodegradable ureteral devices...
October 2016: Archivos Españoles de Urología
F Soria, J E de la Cruz, E Morcillo, J Rioja, F M Sánchez-Margallo
Double-J ureteral stents disposal is associated with the appearance of side effects in up to 90% of the patients. The main causes of these symptoms are related to stent's design and the materials they are manufactured from. Vesicoureteral reflux and bladder trigone irritation are the etiopathogenic causes of ureteral stents associated morbidity. Due to this, and in order to improve patients' quality of life, stents that avoid reflux have been developed. Among anti-reflux designs, the first was a double-J stent the bladder tip of which is provided with a polymeric membrane that prevents retrograde flow of urine through its internal drainage channel...
October 2016: Archivos Españoles de Urología
D Pérez-Fentes
The insertion of a double J catheter (DJ) has widespread, becoming a usual procedure and standard of care in urology. Despite its relative simplicity it is not free from intraoperative risks or problems during the weeks after the implant. Conversely, despite great advances in design of these catheters the ideal material has not been discovered yet, one that is perfectly biocompatible with urine and avoids completely the advent of complications. The range of problems associated with DJs is variable: from mild self-limited dysuria or hematuria to more complex situations with higher risk, such as catheter migration, complete calcification, breakage, obstruction and renal unit loss...
October 2016: Archivos Españoles de Urología
J H Jaunarena, C Cristallo, M S González, F P Daels, J De la Rosette, M P Laguna
OBJECTIVE: To describe the different therapeutic alternatives in malignant ureteral obstruction (MUO), and to analyze short and long-term results. METHODS: We conducted a bibliographic search about MUO in Spanish and English languages in PubMed and Google Scholar. We examined the most relevant reviews, original manuscripts and their respective citations. Last search was on April 2016. RESULTS: Polymeric double J stent is the cheapest and most accessible internal urinary diversion, but has also the shortest duration...
October 2016: Archivos Españoles de Urología
D Cabezalí, C Tordable, A Gómez
Urinary tract catheters are hollow and flexible tubes used to facilitate urine output or to achieve urine transit through them. We can find different types of catheters depending on the purpose they have been designed for: urethral, cystostomy and ureteral catheters among others. We review the indications for insertion of these catheters, their designs, composition, covering materials, insertion techniques and associated complications. Pediatric catheters are behind what is produced for adults, so we perform a bibliographic review about urinary catheters in general with emphasis on the pediatric patient...
October 2016: Archivos Españoles de Urología
G Ordaz-Jurado, A Budía-Alba, P Bahilo-Mateu, J D López-Acón, M Trassierra-Villa, F Boronat-Tormo
OBJECTIVE: Double J ureteral stents are frequently used to allow free diuresis from the kidney to the bladder, but their presence has a major impact on patient's quality of life (QoL). Our aim is to describe such impact, and to describe possible solutions that can alleviate the symptoms associated with their use. METHODS: Systematic search in bibliographic sources including Cochrane library, UpToDate, Pubmed, Tripdatabase, selecting publications between 2000- 2015, and also the EAU European guidelines (2016)...
October 2016: Archivos Españoles de Urología
M Cepeda, J A Mainez, B de la Cruz, J H Amón
The use of double J catheters is usual in urologist's daily practice. The indication can be divided in prophylactic or therapeutic. Prophylactically, they prevent complications derived from endourological procedures, such as ureteral lesion or obstructive uropathy secondary to residual lithiasis or edema. Therapeutically, they treat obstructive uropathy of many different pathologies, either in an emergency setting or scheduled, such as lithiasis, stenosis, extrinsic compression of any nature or urinary tract tumors among others...
October 2016: Archivos Españoles de Urología
J C Gómez-Blanco, J Martínez-Reina, D Cruz, J Blas Pagador, F M Sánchez-Margallo, F Soria
: The mechanics of urine during its transport from the renal pelvis to the bladder is of great interest for urologists. The knowledge of the different physical variables and their interrelationship, both in physiologic movements and pathologies, will help a better diagnosis and treatment. The objective of this chapter is to show the physics principles and their most relevant basic relations in urine transport, and to bring them over the clinical world. For that, we explain the movement of urine during peristalsis, ureteral obstruction and in a ureter with a stent...
October 2016: Archivos Españoles de Urología
Véronique Livet, Paul Pillard, Isabelle Goy-Thollot, David Maleca, Quentin Cabon, Denise Remy, Didier Fau, Éric Viguier, Céline Pouzot, Claude Carozzo, Thibaut Cachon
OBJECTIVES: The purpose of this study was to describe the perioperative and postoperative complications as well as short-term and long-term outcomes in cats with ureteral obstructions treated by placement of a subcutaneous ureteral bypass (SUB) device without imaging control. The second objective of this study was to compare cats treated by SUB device with cats treated by traditional surgical intervention. METHODS: Data were obtained retrospectively from the medical records (2014-2016) of cats that underwent SUB placement (SUB cats) and cats that underwent traditional ureteral surgery (C cats)...
September 30, 2016: Journal of Feline Medicine and Surgery
Shethal Bearelly, Steven W Cheung
Importance: Sensory function in the oral cavity and oropharynx is integral to effective deglutition and speech production. The main hurdle to evaluation of tactile consequences of upper aerodigestive tract diseases and treatments is access to a reliable clinical tool. We propose a rapid and reliable procedure to determine tactile thresholds using buckling monofilaments to advance care. Objective: To develop novel sensory testing monofilaments and map tactile thresholds of oral cavity and oropharyngeal structures...
September 29, 2016: JAMA Otolaryngology—Head & Neck Surgery
Seth A Cohen, Zaid Chaudhry, Janine L Oliver, Evgeniy I Kreydin, My-Linh T Nguyen, Steven A Mills, A Lenore Ackerman, Ja-Hong Kim, Christopher M Tarnay, Shlomo Raz
INTRODUCTION AND OBJECTIVE: There is currently a national shortage of indigo carmine. In efforts to identify the most efficient aide for visualizing ureteral efflux intra-operatively, we wanted to investigate the time to excretion of phenazopyridine versus a newly identified alternative, sodium fluorescein. METHODS: We analyzed prospectively collected data from a cohort of women who underwent pelvic reconstructive surgery in 2015. Per provider preference patterns, a number of patients were administered 200 mg phenazopyridine orally with a sip of water, 1 hour prior to start of operative time...
September 21, 2016: Journal of Urology
Allen Herr, Anuj Malhotra, Mark White, Gary Siskin
Interventional radiologists are commonly called upon to manage patients with benign and malignant ureteral pathologic conditions. Unfortunately, treatments for both cure and palliation can be fraught with problems causing patients to be undesirably maintained with lifelong catheters. This review describes outcomes for antegrade and retrograde therapeutic options and techniques for patients with most types of ureteral pathologic conditions that the interventional radiologist would encounter in practice.
September 2016: Techniques in Vascular and Interventional Radiology
Raymond H Thornton, Anne M Covey
Urinary drainage procedures are used to treat a wide range of clinical situations including pyonephrosis, preservation of renal function in patients with ureteral obstruction, as a means to access the collecting system for stone retrieval or lithotripsy and to divert urine from a distal leak or fistula. Several different drainage devices are available and include those that provide obligatory external drainage (nephrostomy), both internal and external drainage (nephroureteral stent) and internal drainage (double-J stent)...
September 2016: Techniques in Vascular and Interventional Radiology
R Orozco Fariñas, J I Iglesias Prieto, P Pellejero Pérez, J Massarrah Halabi, J M Mancebo, E Pérez-Castro Ellendt
OBJECTIVE: The aim of the present article is to summarize the results we obtained treating children with urolithiasis over the last 30 years and to perform an analysis on the basis of the these results and relevant details according to national and international experience. METHODS: Retrospective and descriptive statistical analysis of the 30 year experience in our clinics. The study was performed with a sample size of 178 children treated with urolithiasis that underwent 221 procedures...
September 2016: Archivos Españoles de Urología
Ricardo Palmerola, Mary E Westerman, Mathew Fakhoury, Stephen A Boorjian, Lee Richstone
Ureteroarterial fistulas (UAFs) are defined as an abnormal communication between one of the major arteries and the ureter. Urologists most frequently encounter iatrogenic fistulas occurring in patients with a history of pelvic extirpative surgery, chronic ureteral catheterization, and history of pelvic radiation. We present two cases of UAFs in patients with no history of prior radiation, who underwent open radical cystectomy and robot-assisted radical cystectomy with intracorporeal ileal conduit. Both patients developed postoperative ureteroileal anastomotic leaks that were managed with indwelling ureteral catheters...
2016: J Endourol Case Rep
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