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Ureteral duplication

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https://www.readbyqxmd.com/read/29598155/two-are-no-different-than-one-ureteral-duplication-appears-to-have-no-effect-on-ureteroscopy-outcomes
#1
Nathan Chertack, Rajat Jain, Manoj Monga, Mark Noble, Sri Sivalingam
Introduction Ureteral duplication is the most common ureteral anomaly, occurring in 0.6-0.7% of the population. Our objective was to compare urolithiasis treatment outcomes in patients with and without ureteral duplication. Methods Patients with ureteral duplication who underwent ureteroscopy (URS) were identified in a stone registry at a high volume, tertiary care center from 1998 to 2015. Preoperative, intraoperative, and postoperative data were collected retrospectively. A 1:1 control cohort of patients without duplication was identified, matched by stone location and size, as well as age, BMI and gender...
March 29, 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29524854/an-adult-ureterocele-complicated-by-a-large-stone-a-case-report
#2
Omar N Atta, Hussein H Alhawari, Muayyad M Murshidi, Emad Tarawneh, Mujalli M Murshidi
INTRODUCTION: Ureterocele is a cystic dilatation of the lower part of the ureter. It is a congenital anomaly that is associated with other anomalies such as a duplicated system, and other diseases. It poses a great challenge owing to its numerous types and clinical presentations. Its incidence is 1 in every 4000 individuals. One of its presentations in the adult population is the presence of a stone, usually a solitary stone, inside the ureterocele. CASE PRESENTATION: We are reporting a case of an adult ureterocele complicated by a large calculus; managed endoscopically with transurethral deroofing of the ureterocele followed by cystolitholapaxy...
February 28, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29522294/durasphere%C3%A2-exp-a-non-biodegradable-agent-for-treatment-of-primary-vesico-ureteral-reflux-in-children
#3
Unsal Ozkuvanci, Muhammet Irfan Donmez, Faruk Ozgor, Akif Erbin, Özge Pasin, Ahmet Yaser Muslumanoglu
INTRODUCTION: Durasphere® EXP (DEXP) is a compound of biocompatible and non-biodegradable particles of zirconium oxide covered with pyrolytic carbon. The aim of this study is to evaluate the durability of off-label use of DEXP in the treatment of primary vesicoureteral reflux in children. MATERIALS AND METHODS: Patients who underwent subureteric injection of DEXP for the correction of primary VUR were retrospectively reviewed . Patients aged >18 years as well as those who had grade-I or -V VUR, anatomic abnormalities (duplicated system, hutch diverticulum), neurogenic bladder or treatment refractory voiding dysfunction were excluded...
March 9, 2018: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/29522291/idiosyncratic-reaction-after-injection-of-polyacrylate-polyalcohol-copolymer
#4
Cristiano Linck Pazeto, Fábio José Nascimento, Lucila Heloisa Simardi Santiago, Sidney Glina
CONTEXT: Polyacrylate-polyalcohol copolymer is a synthetic product, non-biodegradable, with low rate of therapeutic failure and lower incidence of reactions at the site of injection, when compared to biodegradable agents. We report an unprecedent, exuberant and persistent inflammatory reaction following injection of that substance. PATIENT: A 17 years-old patient with vesico-ureteral reflux and complete pyelocaliceal right duplication was submitted to treatment with polyacrylate-polyalcohol copolymer (STING technique)...
March 9, 2018: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/29343922/periureteral-inferior-vena-caval-venous-ring-presenting-as-urinary-obstruction
#5
Suprava Naik, Arashdeep Singh, Sudipta Mohakud, Nerbadyswari Deep
The embryological development of the inferior vena cava (IVC) is complex, and thus the vena cava may undergo a large number of congenital anomalies. Periureteric venous ring is a rare developmental anomaly of IVC where the right ureter passes through a slit-like opening in a partially duplicated infrarenal IVC, resulting in dilatation of upper urinary tract. Split-bolus multidetector computed tomography technique is useful in detecting such vascular anomaly causing ureteric obstruction as it can clearly show the vascular and ureteric phase in a single acquisition...
January 2018: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/29135146/-laparoscopic-heminephrureterectomy-for-duplex-kidney-in-children
#6
I M Kagantsov, V V Sizonov, V I Dubrov, S G Bon-Darenko, N R Akramov, O S Shmyrov, G I Kuzovleva, N V Markov, D E Sablin, R V Surov, A V Pirogov, A A Logval
INTRODUCTION: Duplication of the upper urinary tract is one of the most common congenital urological anomalies. In patients with critically decreased or lost function of one of the renal segments, heminephrureterectomy is usually the treatment of choice. Until recently, this was an open surgery; in cases of complete removal of the ureter, an additional incision in the iliac region was required. Currently, heminephrureterectomy is increasingly performed laparoscopically. We report the experience in laparoscopic heminephrureterectomy (LHNUE) in 10 clinics in Russia and Belarus...
October 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/29048226/effect-of-laser-settings-and-irrigation-rates-on-ureteral-temperature-during-holmium-laser-lithotripsy-an-in-vitro-model
#7
Daniel A Wollin, Evan C Carlos, Westin R Tom, W Neal Simmons, Glenn M Preminger, Michael E Lipkin
PURPOSE: Ureteroscopic laser lithotripsy requires irrigation for adequate visualization and temperature control during treatment of ureteral stones. However, there are little data on how different irrigation and laser settings affect the ureteral wall and surrounding tissues. This effect has become an important consideration with the advent of high-powered lasers. We therefore evaluated the effect of laser settings and irrigation flow on ureteral temperature in an in vitro setting. MATERIALS AND METHODS: To mimic ureteroscopic laser lithotripsy, we simulated clinically relevant irrigation flow rates and fired a Holmium:Yttrium-aluminum-garnet (Ho:YAG) laser while monitoring "intraureteral" temperature...
January 2018: Journal of Endourology
https://www.readbyqxmd.com/read/28894842/retroperitoneal-actinomycosis-a-rare-sequela-of-an-infected-obstructing-ureteral-stone
#8
Elizabeth Bearrick, Colby A Dixon, Joshua Rhein, Michael S Borofsky
Background: Actinomycosis is a condition in which Actinomyces, a normal component of the oral and gastrointenstial flora, becomes pathogenic in the setting of damaged tissue, leading to widespread tissue destruction across fascial planes. Prior literature describing this condition is rare, particularly cases involving the retroperitoneum. In this study, we report a case of retroperitoneal actinomycosis caused by an infected, obstructing ureteral stone. Case Presentation: A 48-year-old woman with a history of substance abuse, malnutrition, and gastric bypass presented to the emergency room with a 3-week history of abdominal pain and fevers...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/28770138/anterior-urethral-valve-uncommon-association-with-renal-duplicity
#9
Amina Ben Salem, Ines Mazhoud, Rachida Laamiri, Randa Salem, Hayet Laajili, Lassaad Sahnoun, Chiraz Hafsa
Anterior urethral valves (AUVs) is an unusual cause of congenital obstruction of the male urethra, being 15-30 times less common than posterior urethral valves. We present a case of AUV diagnosed at 24th gestational week. Ultrasonography and fetal MRI revealed hydronephrotic kidneys with ureteral duplicity, a distended bladder and perineal cystic mass which confirmed dilated anterior urethra in a male fetus. Diagnosis was confirmed postnatally by voiding cystourethrogram and surgery.
April 2017: Journal of Neonatal Surgery
https://www.readbyqxmd.com/read/28754280/-prenatal-diagnosis-and-management-of-two-cases-of-bilateral-ureteroceles-on-simplex-ureters
#10
H Ben Hamouda, H Bouchahda, S Ghanmi, S Wannes, H Soua, H Hamza, M Belghith, A Nouri, M T Sfar
Ureterocele is a rare urologic disorder characterized by pseudocystic dilatation of the terminal submucosal ureter. Most cases of ureteroceles are associated with complete ureteral duplicity and ureterohydronephrosis, whereas ureteroceles on simplex ureters are rarer. The authors report two cases of bilateral ureteroceles on simplex ureters diagnosed prenatally at 30 and 32weeks gestation. Fetal ultrasound had revealed bilateral ureterohydronephrosis. The delivery was made at term and renal function was normal at birth...
July 25, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28724605/heterozygous-loss-of-function-mutation-in-odd-skipped-related-1-osr1-is-associated-with-vesicoureteric-reflux-duplex-systems-and-hydronephrosis
#11
Marie-Lyne Fillion, Jasmine El Andalousi, Fatima Tokhmafshan, Vasikar Murugapoopathy, Christine L Watt, Inga J Murawski, John-Paul Capolicchio, Mohamed El-Sherbiny, Roman Jednak, Indra R Gupta
Odd-skipped related 1 (Osr1) is a transcriptional repressor that plays critical roles in maintaining the mesenchymal stem cell population within the developing kidney. Here, we report that newborn pups with a heterozygous null mutation in Osr1 exhibit a 21% incidence of vesicoureteric reflux and have hydronephrosis and urinary tract duplications. Newborn pups have a short intravesical ureter, resulting in a less competent ureterovesical junction which arises from a delay in urinary tract development. We describe a new domain of Osr1 expression in the ureteral mesenchyme and within the developing bladder in the mouse...
November 1, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28302252/bilateral-ureteral-duplication-of-complete-left-and-incomplete-right-side-with-lower-pole-kidney-stone
#12
Selahattin Caliskan
Bilateral ureteral duplication is a very rare anomaly, a result of two separate ureteric buds arising from a mesonephric duct. Most of the patients are asymptomatic and diagnosed incidentally. Recurrent urinary tract infections, incontinence, haematuria, stone formation and flank pain are common clinical symptoms. Intravenous urography, computed tomography urography, and magnetic resonance imaging are the diagnostic modalities. In this report, a case of bilateral ureteral duplication with stone formation in the lower pole of the right kidney is presented along with its management...
March 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28247718/-technical-features-of-uretral-intestinoplasty-part-3-laparoscopic-ileo-and-appendiceal-ureteroplasty
#13
B K Komyakov, B G Guliev, V A Ochelenko
PURPOSE: Presentation of the results and the technical features of the laparoscopic intestinal and appendicular ureteroplasty. MATERIALS AND METHODS: From 2001 to 2015, intestinal and appendicular ureteroplasty was performed in 103 patients. ileum was used for the replacement of ureteral defects in 78 (75.7%) patients, appendix - in 21 (20.4%), and colon - in 4 (3.9%). In 10 (9.7%) cases, the surgery was performed laparoscopically. Among them, 7 patients underwent ileoureteroplasty (6 - laparoscopic ileoureterocystoanastomosis, 1 - right-sided laparoscopic ileoureterocystoanastomosis by Yang-Monti) and 3 patients underwent appendiceal ureteroplasty...
August 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28247653/-technical-features-of-intestinal-ureteroplasty-part-1-left-sided-ileoureteroplasty
#14
B K Komyakov
AIM: To examine the results of intestinal ureteroplasty and present the technical features of left-sided ileoureteroplasty. MATERIAL AND METHODS: From 2001 to 2015, 78 patients underwent isolated substitutions of the ureter using a segment of the ileum, including 57 (73.1%) one-sided and 21 (26.9%), two-sided. One patient underwent concurrent left ileoureterocystoplasty and right appendicular ureterocystoplasty. In two observations of duplicated ureter Wallace-type ileoureterocystoplasty was carried out...
April 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28167691/robotic-partial-nephrectomy-for-duplex-kidney-with-ectopic-ureter-draining-in-the-vagina-in-an-adult-patient-with-urinary-incontinence
#15
Humza Mahmood, Marios Hadjipavlou, Raj Das, Chris Anderson
A duplex kidney system with an ectopic ureter draining into the vagina is a congenital malformation that typically presents as refractory urinary incontinence. Diagnosis is often difficult to establish and delayed due to a low incidence. We present the case of a patient aged 26 years with a life-long history of persistent urinary incontinence. Initial presentation was at childhood; however, the diagnosis went undetermined for 22 years. CT urography revealed a duplex kidney with an atrophic upper pole associated with an ectopic ureter that drained into the vaginal vault...
February 6, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28149748/extravasation-of-urine-associated-with-bilateral-complete-ureteral-duplication-vesicoureteral-reflux-and-benign-prostatic-hyperplasia
#16
Issei Suzuki, Kanya Kaga, Kohei Takei, Yuumi Tokura, Kazumasa Sakamoto, Daisaku Nishihara, Tomoya Mizuno, Hideo Yuki, Hironori Betsunoh, Hideyuki Abe, Masahiro Yashi, Yoshitatsu Fukabori, Tomonori Yamanishi, Takao Kamai
We report a rare case of extravasation of urine, which may be associated with bilateral complete ureteral duplication, vesicoureteral reflux (VUR), and benign prostatic hyperplasia (BPH). A 71-year-old male presented with a complaint of right abdominal pain. An extravasation of urine was noted, and was improved by indwelling urethral catheterization. Transurethral resection of the prostate and the endoscopic subureteral injection of dextanomer/hyaluronic acid were performed for the treatment of BPH and VUR, respectively...
February 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28010137/hydronephrosis-with-ureteritis-developed-in-c57bl-6n-mice-carrying-the-congenic-region-derived-from-mrl-mpj-type-chromosome-11
#17
Osamu Ichii, Masataka Chihara, Shin-Hyo Lee, Teppei Nakamura, Saori Otsuka-Kanazawa, Taro Horino, Yaser Hosny Ali Elewa, Yasuhiro Kon
Inbred MRL/MpJ mice show several unique phenotypes in tissue regeneration processes and the urogenital and immune systems. Clarifying the genetic and molecular bases of these phenotypes requires the analysis of their genetic susceptibility locus. Herein, hydronephrosis development was incidentally observed in MRL/MpJ-derived chromosome 11 (D11Mit21-212)-carrying C57BL/6N-based congenic mice, which developed bilateral or unilateral hydronephrosis in both males and females with 23.5% and 12.5% prevalence, respectively...
March 2017: Autoimmunity
https://www.readbyqxmd.com/read/27896134/robot-assisted-pyeloureterostomy-in-bifid-renal-pelvis-with-ureteropelvic-junction-obstruction-of-the-lower-moiety
#18
Mario Lima, Michela Maffi, Niel Di Salvo, Tommaso Gargano, Michele Libri, Giovanni Ruggeri
Duplications of the urinary collecting system and pyelo-ureteral junction obstruction (PUJO) are common, but the simultaneous presence of both anomalies is rarely encountered. In incomplete duplicated systems, PUJO usually affects the lower moiety. We present the case of a 5-year old boy with left bifid renal pelvis and hydronephosis of the lower moiety treated by robot-assisted pyeloureterostomy.
January 2017: Urology Case Reports
https://www.readbyqxmd.com/read/27868099/endourologic-and-open-ureterolithotomy-and-common-sheath-reimplant-for-large-bladder-and-distal-ureteral-calculi
#19
Madeline Cancian, Joseph Brito, Joseph Renzulli, Gyan Pareek
A twenty-eight-year-old female with a history of suprapubic pain and recurrent urinary tract infections presents for urology referral with a kidney, ureter, and bladder radiograph showing a 4.4 cm bladder calculus and 6.5 cm distal left ureteral stone. She underwent effective cystolitholapaxy of the bladder stone. Endourologic attempt (left ureteroscopy) was unsuccessful because of ureteral stone burden. Findings at ureteroscopy revealed a duplicated system on the left with the lower pole moiety joining just proximal to the ureteral orifice...
2016: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/27843215/extravesical-modified-gregoir-lich-versus-intravesical-cohen-s-ureteric-reimplantation-for-vesicoureteral-reflux-in-children-a-single-center-experience
#20
Krishnamoorthy Sriram, Ramesh Babu
INTRODUCTION: There are multiple techniques for surgical correction of vesicoureteral reflux (VUR). We compared the outcomes of extravesical versus Cohen's reimplantation for VUR in children. METHODS: Records of all children (n = 118) who underwent reimplantation for VUR between 2003 and 2014 were analyzed (male: female = 43:75). Children with secondary VUR, duplication anomalies, and ectopic ureter were excluded from our study. Extravesical reimplantation (EVR) was performed bilateral in 32 children (Group 1a) and unilateral in 19 (Group 1b), while bilateral Cohen's reimplantation was performed in 67 (Group 2)...
October 2016: Indian Journal of Urology: IJU: Journal of the Urological Society of India
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