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https://www.readbyqxmd.com/read/29154984/five-supernumerary-renal-arteries-originating-from-the-aorta-associated-with-ureteropelvic-junction-upj-extrinsic-compression
#1
Alexander K Chow, Leslie A Deane
A 65-year-old female presented with recurrent urinary tract infections. A computed tomography of the abdomen and pelvis shows a dilated and malrotated right renal pelvis consistent with a ureteropelvic junction (UPJ) obstruction as well as multiple renal arteries arising from the aorta. A computed tomography angiography (CTA) revealed five separate renal arteries originating from the aorta with a single renal artery crossing over and obstructing the right renal pelvis. On Lasix renogram, the affected kidney contributes 45% of total renal function...
November 15, 2017: Urology
https://www.readbyqxmd.com/read/29082328/schistosomiasis-a-disobedient-ureter-a-disobedient-diagnosis
#2
Pallavi Olivia Pal, Richard Daron Smith, Sian Allen, Marzena Ratynska, Simon Edwards, Philip Gothard, Sarah Logan
Background: Schistosomiasis is rare in western countries, but remains a potentially serious disease. It is known to result in severe urogenital complications; prompt diagnosis can therefore significantly affect outcomes. Case Presentation: We report the case of a 41-year-old male with pleuritic chest pain and visible hematuria who had emigrated from Zimbabwe to the United Kingdom 20 years previously. CT imaging revealed a hydronephrotic right pelvicaliceal system, with a dilated ureter to its distal portion...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/29066360/early-detection-of-ureteropelvic-junction-obstruction-using-signal-analysis-and-machine-learning-a-dynamic-solution-to-a-dynamic-problem
#3
Emily S Blum, Antonio R Porras, Elijah Biggs, Pooneh R Tabrizi, Rachael D Sussman, Bruce M Sprague, Eglal Shalaby-Rana, Massoud Majd, Hans G Pohl, Marius George Linguraru
PURPOSE: To define features that describe the dynamic information in diuresis renograms (DR) for the early detection of clinically significant hydronephrosis caused by ureteropelvic junction obstruction. MATERIALS AND METHODS: We studied the DR from 55 patients (age 80±70 days) with congenital hydronephrosis at initial presentation. Five patients had bilaterally affected kidneys, totaling 60 DR. Surgery was performed on 35 kidneys. We extracted 45 features (based on curve shape and wavelet analysis) from the drainage curves recorded after administration of furosemide...
October 21, 2017: Journal of Urology
https://www.readbyqxmd.com/read/29039327/formulation-of-lyophilized-single-vial-kit-of-n-n-ethylene-l-dicysteine-ec-for-labeling-with-99m-tc-ii-radiochemical-and-clinical-evaluation-as-a-renal-tubular-agent-in-comparison-with-99m-tc-mag3
#4
Anjum Afshan, Mohammad Sohaib, Mohammad Jehangir
A Technetium (99m)Tc labeled lyophilized single component kit of N-N-ethylene-I-dicysteine (EC) is developed to replace multiple step kit developed by others. The aim of study is to formulate a radionuclide that is easy to prepare, has rapid plasma clearance, produce high quality images and is an affective alternative to radioiodine labeled orthoiodohippurate, which has been remained the physiological 'gold standard' since long time. To achieve this goal, the systematically varied key parameters such as pH, the use of reducing agents, stabilizers and additives are optimized to obtain maximum radiochemical purity and optimum biodistribution in non human and human primates...
July 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29033680/the-utility-of-99m-technetium-mercaptoacetyltriglycine-renogram-in-assessing-the-baseline-renal-function-of-a-rare-incidental-ectopic-thoracic-kidney
#5
Ting-Ting Zhang, Adanna Oparandu, Ziauddin Saad
Ectopic thoracic kidney is an extremely rare condition caused by the abnormal location of one or both kidneys in the thoracic cavity. They are usually discovered incidentally on routine imaging. Although commonly asymptomatic, thoracic kidneys are at a risk of malrotation, pelviureteric junction obstruction, and subsequent obstructive nephropathy, by virtue of their long pedicle. We present a case report of an incidental thoracic kidney, for which a (99m)technetium-mercaptoacetyltriglycine ((99m)Tc-MAG3) renogram was performed to assess the baseline renal function...
October 2017: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28988673/predictive-value-of-cortical-transit-time-on-mag3-for-surgery-in-antenatally-detected-unilateral-hydronephrosis-caused-by-ureteropelvic-junction-stenosis
#6
Jun Nyung Lee, Jun-Koo Kang, Shin Young Jeong, So Mi Lee, Min Hyun Cho, Yun-Sok Ha, Hyun Tae Kim, Tae-Hwan Kim, Eun Sang Yoo, Tae Gyun Kwon, Sung Kwang Chung
BACKGROUND: In children with antenatally detected hydronephrosis caused by ureteropelvic junction (UPJ) stenosis, the main challenge is preserving renal function by identifying children who require early surgical intervention from those for whom watchful waiting may be appropriate because of the potential for spontaneous resolution without a significant loss of renal function. OBJECTIVE: To assess the impact of initial cortical transit time (CTT) on technetium-99m mercaptoacetyltriglycerine (MAG3) diuretic renogram on the need for surgery in children with antenatally detected unilateral hydronephrosis caused by UPJ stenosis...
September 19, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28937061/long-term-evaluation-of-kidney-function-in-live-related-kidney-donors
#7
Kalpana S Mehta, Rudramani Swami, Atim Pajai, Sandip Bhurke, Abhishek Shirkande, Sunil Jawle
The consequences of live kidney donation on the donor health with main emphasis on postdonation blood pressure (BP), proteinuria, kidney size, and glomerular filtration rate (GFR) were evaluated. Twenty-five donors with minimum of six months postdonation duration were included in the study. Donor age at nephrectomy, duration postnephrectomy, systolic and diastolic BP measurement pre-and post-donation, postdonation, blood urea nitrogen, serum creatinine and 24-h proteinuria, blood sugar, two-dimensional echocardiogram were recorded...
September 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28827902/the-efficacy-of-percutaneous-nephrolithotomy-using-pneumatic-lithotripsy-vs-the-holmium-laser-a-randomized-study
#8
Chaoying Liu, Houyong Zhou, Weisheng Jia, Hua Hu, Heng Zhang, Longkun Li
The objective of the study is to compare the efficacy of percutaneous nephrolithotomy using holmium laser vs pneumatic lithotripsy. From August 2010 to March 2014, 200 patients with double kidney and single kidney stones without previous operations or other diseases were randomized into two groups according to the type of lithotripter used: pneumatic (n = 100) and laser (n = 100). The preoperative, intraoperative, and post-operative follow-up findings were analyzed and compared. The average stone size was similar in both the pneumatic and holmium laser lithotripsy groups (202...
August 2017: Indian Journal of Surgery
https://www.readbyqxmd.com/read/28814706/-diagnostic-impact-of-3d-ct-with-retrograde-pyelography-for-ureteropelvic-junction-obstruction-a-case-report
#9
Kohei Takei, Hideyuki Abe, Daisaku Nishihara, Tomoya Mizuno, Yuumi Tokura, Issei Suzuki, Kazumasa Sakamoto, Hideo Yuki, Tsunehito Kambara, Hironori Betsunou, Masahiro Yashi, Yoshitatsu Fukabori, Takao Kamai, Kensuke Inamura, Yasukazu Shioyama, Yasushi Kaji
A 26-year-old woman presented to our hospital with right costovertebral angle (CVA) pain. Ultrasonographyand computed tomography(CT) scan indicated right hydronephrosis, and MAG3 renogram showed an obstructed pattern in the right kidney. Enhanced CT scan revealed an ureteropelvic junction obstruction (UPJO) with an aberrant vessel. To clarifythe ureteropelvic junction (UPJ) structure in detail, we utilized 3D-CT with retrograde pyelography (RP), which further revealed the true pinhole ureteral stricture of UPJ unaffected bythe aberrant vessel...
July 2017: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28761585/early-clamp-release-during-laparoscopic-partial-nephrectomy-implications-for-preservation-of-renal-function
#10
Jeffrey Campbell, Garson Chan, Patrick P Luke
INTRODUCTION: Intraoperative warm ischemic time (WIT), associated with hilar clamping during partial nephrectomy (PN), is an established modifiable risk factor for renal dysfunction. We assessed early clamp release (ECR) as a strategy to reduce WIT and assess its impact on renal function and bleeding. METHODS: We retrospectively assessed patients who underwent minimally invasive PN by a single surgeon at our centre since December 2011. Comparing the standard technique to an ECR modification, WIT, complications, change in estimated glomerular filtration rate (eGFR), and change in differential function as demonstrated by MAG-3 nuclear renography were assessed...
July 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28757241/robotic-salvage-pyeloplasty-with-buccal-mucosal-onlay-graft-video-demonstration-of-technique-and-outcomes
#11
Anna M Zampini, Ryan Nelson, J J Haijing Zhang, Jeremy Reese, Kenneth W Angermeier, Georges-Pascal Haber
OBJECTIVE: To present the use of buccal mucosal graft (BMG) in a salvage robotic laparoscopic pyeloplasty as an alternative in the management of a recurrent ureteropelvic junction (UPJ) obstruction. METHODS: We present 2 patients with a recurrent UPJ obstruction who had previously undergone 2 prior open or robotic pyleoplasties, followed by endoscopic management. Preoperative imaging was obtained before surgical repair. The UPJ was incised and the incision extended to reveal margins of a healthy normal-caliber ureteral tissue...
July 27, 2017: Urology
https://www.readbyqxmd.com/read/28694567/immunohistochemistry-in-ureteropelvic-junction-obstruction-and-its-correlation-to-postoperative-outcome
#12
Anusiri Inugala, Ramesh Kota Reddy, Bhuvaneshwar Nadipalli Rao, Sreenivas P Reddy, Radhika Othuluru, Lavanya Kanniyan, Nagarjuna Kumbha, Srinivas Srirampur
AIM: To investigate the correlation between the status of interstitial cells of Cajal (ICC) in ureteropelvic junction (UPJ) and the resected ureteric margin and the postoperative outcome of Anderson-Hynes pyeloplasty in UPJ obstruction (UPJO) and to compare the ICC in the UPJ and the resected margin of the normal ureter. MATERIALS AND METHODS: An observational study was conducted over a period of 2 years at the Department of Pediatric Surgery at Niloufer Institute of Women and Child Health...
July 2017: Journal of Indian Association of Pediatric Surgeons
https://www.readbyqxmd.com/read/28670676/yang-monti-principle-in-bridging-long-ureteral-defects-cases-report-and-a-systemic-review
#13
Jun Sheng Bao, Qiqi He, Yuzhuo Li, Wei Shi, Gongjin Wu, Zhongjin Yue
Ureteric substitution using the Yang-Monti principle was reported as a modification of simple ileal ureter replacement. During April 2013 to June in 2015, 2 patients underwent ileal ureteral substitution using a reconfigured ileal segment of Yang Monti principle in our clinical center. Some slight modifications were made and then follow-up were carried out up to 12 months. For these 2 cases, no significant intra/post-operative complications occurred. In 1 year follow up, serum creatinine (Scr) and blood urea nitrogen (BUN) of both patients decreased to normal...
July 2, 2017: Urology Journal
https://www.readbyqxmd.com/read/28630020/transumbilical-multi-port-laparoscopic-pyeloplasty-versus-transumbilical-single-site-laparoscopic-pyeloplasty-for-ureteropelvic-junction-obstruction-in-children-a-retrospectively-comparative-study
#14
Dehong Liu, Huixia Zhou, Lifei Ma, Huawei Xie, Tian Tao, Hualin Cao, Xiaoguang Zhou, Xiaolong Luo, Shaojun Chen
INTRODUCTION: Laparoscopic pyeloplasty has achieved good cosmetic and functional outcomes. Both transumbilical single-site and transumbilical multi-port approaches are currently being used. No comparison of transumbilical single-site laparoscopic pyeloplasty (TSLP) and transumbilical multi-port laparoscopic pyeloplasty (TMLP) has been reported in the literature. OBJECTIVES: We present a retrospective comparison study to evaluate clinical outcomes of TSLP and TMLP for children with ureteropelvic junction obstruction (UPJO)...
June 3, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28594594/laparoscopic-assisted-extravesical-ureteral-reimplantation-and-extracorporeal-ureteral-tapering-repair-for-primary-obstructive-megaureter-in-children
#15
Manuel Lopez, Romy Gander, Gloria Royo, François Varlet, Marino Asensio
BACKGROUND: Open surgery is a preferred treatment for primary obstructive megaureter (POM) in cases where the conservative treatment fails, with reported success rates of 90%-96%. OBJECTIVE: To describe our initial experience in the treatment of POM by laparoscopic-assisted extracorporeal ureteral tapering repair (EUTR) and laparoscopic ureteral extravesical reimplantation (LUER) by following Lich Gregoir technique as an alternative to open surgery. DESIGN, SETTING, AND PARTICIPANTS: A total of 7 patients with POM underwent laparoscopic-assisted extracorporeal ureteral tapering repair and ureteral extravesical reimplantation by following Lich Gregoir technique between 2011 and 2014...
August 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28590826/minimally-invasive-treatment-of-pediatric-extrinsic-ureteropelvic-junction-obstruction-by-crossing-polar-vessels-is-vascular-hitching-a-definitive-solution-report-of-a-multicenter-survey
#16
Salvatore Fabio Chiarenza, Cosimo Bleve, Paolo Caione, Maria Escolino, Simona Gerocarni Nappo, Rosa Perretta, Angela La Manna, Ciro Esposito
BACKGROUND: This article aimed to evaluate the outcome of laparoscopic vascular hitch (VH) as an effective alternative to dismembered pyeloplasty in the treatment of children with extrinsic ureteropelvic junction obstruction (UPJO) by crossing vessels (CVs), by reporting the experience of three Italian centers of Pediatric Surgery. METHODS: From 2006 to 2014, 54 children (18 girls and 36 boys, average age 10.7 years) affected by suspected extrinsic UPJO by CV were treated in three different institutions: 51 patients underwent laparoscopic VH, while 3 patients, in which a coexisting intrinsic etiology of UPJO was doubtful, underwent laparoscopic dismembered pyeloplasty...
September 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28560352/endourologic-management-of-an-iatrogenic-ureteral-avulsion-using-a-thermoexpandable-nickel-titanium-alloy-stent-memokath-051
#17
Maral J Rouhani, Hamid Abboudi, Norma Gibbons, Tamer El-Husseiny
Background: The use of ureteroscopy in the management of urolithiasis is well established. Ureteral avulsion is a rare but challenging complication of the procedure. Postureteral injury strictures are a common result of such injuries and are typically managed with reconstructive surgery or endoscopically with polymer stent. This case represents the first effective management of ureteral avulsion and subsequent ureteral stricture using a Memokath ureteral stent. Case Presentation: A 54-year-old gentleman presented to the Department of Urology with right loin pain as a result of right renal calculi, previously treated with extracorporeal shockwave lithotripsy...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/28506053/-laparoscopic-pyelolithotomy-in-a-horseshoe-kidney-a-case-report-and-review-of-the-literature
#18
REVIEW
Tateki Yoshino, Koji Wake, Tomoyuki Sugitani, Koji Kodama, Hiroaki Shiina, Hiroaki Yasumoto, Ayumi Kadowaki, Kazuo Kawakami
A 76-year-old man was introduced to our department with a right kidney stone. On the basis of further examination, he was diagnosed with a 23 mm right kidney stone accompanied with a horseshoe kidney. Retrograde pyelography and diuretic renogram revealed a non-obstructed right ureteropelvic junction. Finally, we chose laparoscopic pyelolithotomy via peritoneal approach because the stone was large and accompanied with a horseshoe kidney. The surgery took 165 minutes and the estimated blood loss was 25 ml. There were no minor or major complications...
April 2017: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28494441/different-successful-management-strategies-for-obstructing-renal-parapelvic-cysts
#19
Sabrina H Rossi, Brendan Koo, Antony Riddick, Nimish Shah, Grant D Stewart
Parapelvic cysts originate in the renal parenchyma and extend into the renal sinus. A series of 3 patients with symptomatic obstructing parapelvic cysts is described, 2 with acute presentations, and 1 with chronic symptoms. In 2 of the 3 cases, there was a significant delay in establishing a diagnosis. Although one individual was successfully managed by image-guided cyst aspiration, the second patient required repeated aspiration due to cyst re-accumulation. A high index of clinical suspicion and a combination of imaging modalities, including serial ultrasound, excretory-phase CT, and MAG3 renogram, are necessary to establish the diagnosis and monitor response to treatment...
May 12, 2017: Urologia Internationalis
https://www.readbyqxmd.com/read/28350215/transumbilical-single-site-multiport-laparoscopic-pyeloplasty-for-children-with-ureteropelvic-junction-obstruction-in-china-a-multicenter-study
#20
Dehong Liu, Huixia Zhou, Min Chao, Jinchun Qi, Huayu Wei, Nini An, Haitao Chen, Long Li
BACKGROUND: Transumbilical single-site multiport laparoscopic pyeloplasty (TSMLP) for children with ureteropelvic junction obstruction (UPJO) has become feasible and popular recently. The purpose of this study was to evaluate the safety and efficacy of TSMLP for pediatric UPJO in a large multicenter series. MATERIALS AND METHODS: Medical records of consecutive patients who underwent TSMLP for pediatric UPJO in six academic institutions between June 2010 and May 2015 were retrospectively analyzed...
June 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
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