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https://www.readbyqxmd.com/read/29686963/female-urethral-diverticulum-containing-large-calculi
#1
Shoichi Kimura, Yoshihiro Kawaguchi, Kosuke Momozono, Masanori Noguchi
Urinary stones in female urethral diverticulum are rarely seen. We report a 79-year-old woman who presented with irritative lower urinary tract symptoms and vaginal cystocele with incontinence. The urethral stones in the diverticulum were successfully extracted through the trans-urethral route and anterior tension-free vaginal mesh was applied one month later. The patient has been well, with no lower urinary symptoms or incontinence for 4 months.
May 2018: Urology Case Reports
https://www.readbyqxmd.com/read/29677890/re-composition-of-urinary-calculi-in-infants-a-report-from-an-endemic-country
#2
Dean G Assimos
No abstract text is available yet for this article.
May 2018: Journal of Urology
https://www.readbyqxmd.com/read/29676347/dual-energy-computed-tomography-a-reliable-and-established-tool-for-in-vivo-differentiation-of-uric-acid-from-nonuric-acid-renal-stones
#3
Mohd Ilyas, Ghanshyam Dev, Anchal Gupta, Tameem Ahmad Bhat, Shwait Sharma
Background: Dual-energy computed tomography (DECT) utilises the technique of simultaneous image acquisition of a body part at two different energy levels of the X-ray tubes. We used the DECT in this project to study its accuracy in non-invasive in vivo differentiation of uric acid (UA) calculi from non-UA calculi using the 3rd generation dual-source computed tomography (CT) scanner. Materials and Methods: The DECT ratios of the various stones were noted and compared with the postextraction analysis of stones for composition...
January 2018: Nigerian Postgraduate Medical Journal
https://www.readbyqxmd.com/read/29672249/urinary-tract-infection-by-strongyloides-stercoralis-a-case-report
#4
Nilo Manoel Pereira Vieira Barreto, Joelma Nascimento de Souza, Weslei Almeida Costa Araujo, Nadia Andrade Khouri, Ernesto Pereira de Oliveira, Márcia Cristina Aquino Teixeira, Neci Matos Soares
The objective of this study was to report a case of a hydronephrotic patient with Strongyloides stercoralis infection, with discharge of rhabditoid larva exclusively in urine. In 2013, a 72-yr-old, male patient, hypertensive, obese and diagnosed with hydronephrosis secondary to renal calculi, reported lumbar pain, polyuria, polaciuria and dysuria, as well as frequent urinary tract infections. The microscopic analysis of urine sediment showed the presence of S. stercoralis rabditoid larva. However, parasitological examinations by Baermann-Moraes, agar plate culture and spontaneous sedimentation, performed with 3 fecal samples on alternate days had negative results...
April 19, 2018: Journal of Parasitology
https://www.readbyqxmd.com/read/29660680/phase-composition-and-morphological-characterization-of-human-kidney-stones-using-ir-spectroscopy-scanning-electron-microscopy-and-x-ray-rietveld-analysis
#5
Paramita Chatterjee, Arup Chakraborty, Alok K Mukherjee
Pathological calcification in human urinary tract (kidney stones) is a common problem affecting an increasing number of people around the world. Analysis of such minerals or compounds is of fundamental importance for understanding their etiology and for the development of prophylactic measures. In the present study, structural characterization, phase quantification and morphological behaviour of thirty three (33) human kidney stones from eastern India have been carried out using IR spectroscopy (FT-IR), powder X-ray diffraction (PXRD) and scanning electron microscopy (SEM)...
April 9, 2018: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/29651810/recurrent-stone-forming-patients-have-high-visceral-fat-ratio-based-on-computed-tomography-images-compared-to-first-time-stone-forming-patients
#6
Shimpei Yamashita, Takashi Iguchi, Satoshi Nishizawa, Akinori Iba, Yasuo Kohjimoto, Isao Hara
OBJECTIVES: To compare various fat parameters based on computed tomography images between recurrent stone-forming patients and patients forming stones for the first time. METHODS: Included in the present study were 300 patients with upper urinary tract calculi who had undergone active stone removal in our hospital. Using pretreatment computed tomography images, we measured visceral fat area and volume, subcutaneous fat area and volume, visceral fat area ratio and visceral fat volume ratio...
April 12, 2018: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/29649219/stone-heterogeneity-index-on-single-energy-noncontrast-computed-tomography-can-be-a-positive-predictor-of-urinary-stone-composition
#7
Jong Soo Lee, Kang Su Cho, Seung Hwan Lee, Young Eun Yoon, Dong Hyuk Kang, Won Sik Jeong, Hae Do Jung, Jong Kyou Kwon, Joo Yong Lee
The aim of this study was to investigate the correlation between stone composition and single-energy noncontrast computed tomography (NCCT) parameters, including stone heterogeneity index (SHI) and mean stone density (MSD), in patients with urinary calculi. We retrospectively reviewed medical records of 255 patients who underwent operations or procedures for urinary stones or had spontaneous stone passage between December 2014 and October 2015. Among these, 214 patients with urinary calculi who underwent NCCT and stone composition analyses were included in the study...
2018: PloS One
https://www.readbyqxmd.com/read/29626256/dual-layer-spectral-detector-ct-non-inferiority-assessment-compared-to-dual-source-dual-energy-ct-in-discriminating-uric-acid-from-non-uric-acid-renal-stones-ex-vivo
#8
Lakshmi Ananthakrishnan, Xinhui Duan, Yin Xi, Matthew A Lewis, Margaret S Pearle, Jodi A Antonelli, Harold Goerne, Elysha M Kolitz, Suhny Abbara, Robert E Lenkinski, Julia R Fielding, John R Leyendecker
PURPOSE: To assess the non-inferiority of dual-layer spectral detector CT (SDCT) compared to dual-source dual-energy CT (dsDECT) in discriminating uric acid (UA) from non-UA stones. METHODS: Fifty-seven extracted urinary calculi were placed in a cylindrical phantom in a water bath and scanned on a SDCT scanner (IQon, Philips Healthcare) and second- and third-generation dsDECT scanners (Somatom Flash and Force, Siemens Healthcare) under matched scan parameters. For SDCT data, conventional images and virtual monoenergetic reconstructions were created...
April 7, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29617079/effect-of-phyllanthus-niruri-on-metabolic-parameters-of-patients-with-kidney-stone-a-perspective-for-disease-prevention
#9
Nidia D Pucci, Giovanni S Marchini, Eduardo Mazzucchi, Sabrina T Reis, Miguel Srougi, Denise Evazian, William C Nahas
Phyllanthus niruri (P.niruri) or stone breaker is a plant commonly used to reduce stone risk, however, clinical studies on this issue are lacking. OBJECTIVE: To prospectively evaluate the effect of P. niruri on the urinary metabolic parameters of patients with urinary lithiasis. MATERIALS AND METHODS: We studied 56 patients with kidney stones <10mm. Clinical, metabolic, and ultrasonography assessment was conducted before (baseline) the use of P. niruri infusion for 12-weeks (P...
March 10, 2018: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/29605825/potassium-citrate-is-better-in-reducing-salt-and-increasing-urine-ph-than-oral-intake-of-lemonade-a-cross-over-study
#10
Jing Shen, Xicheng Zhang
BACKGROUND Urine solute supersaturation leads to the formation of urinary tract caliceal stones. Many parameters can be involved in the supersaturation of solutes in urine, such as pH. Uric acid has pKa ≤5.5, and it is solubilized at pH ≥5.5. The objective of the study was to evaluate the effects of potassium citrate and lemonade supplementation in pediatric patients with urolithiasis. MATERIAL AND METHODS A total of 126 children who had lower ureteral stones calculi and fragments with severe colic pain participated in this cross-over study...
April 1, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29595043/minimally-invasive-approach-for-the-management-of-urological-complications-after-renal-transplantation-single-center-experience
#11
Orkunt Özkaptan, Cuneyd Sevinc, Muhsin Balaban, Tahir Karadeniz
BACKROUND: The aim of the study was to characterise urological complications after renal transplantation and to evaluate the role of minimally invasive management for urological complications. METHODS: A total of 920 kidney transplantations were performed between 2008 and 2015. All patients were followed up for at least 1 year after transplantation. Complications regarded as urological were urinary leakage, ureteral stricture, urinary malignancy, bladder outlet obstruction (BOO) and urinary calculi...
March 28, 2018: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/29593466/using-the-modified-clavien-grading-system-to-classify-complications-of-percutaneous-nephrolithotomy
#12
Aditya K Singh, Pushpendra K Shukla, Sartaj W Khan, Vazir S Rathee, Udai Shankar Dwivedi, Sameer Trivedi
Purpose: A modified Clavien classification system has been proposed to grade perioperative complications. We share our experience in grading the complications of percutaneous nephrolithotomy (PNL), according to this new classification. Methods: A total of 809 PNLs performed between 2010 and 2014 were reviewed retrospectively. The modified Clavien classification system, which classifies the perioperative complications into 5 grades, was applied. Grade wise comparison of complications between the patients with simple and complex calculi was done...
February 2018: Current Urology
https://www.readbyqxmd.com/read/29588918/percutaneous-and-endoscopic-management-of-nephrolithiasis-in-a-patient-with-five-native-ureters-trifid-right-and-bifid-left-collecting-system
#13
Neel H Patel, Mark J Ferretti, Jonathan B Bloom, Suraj Parikh, Michael Iorga, Nikil Uppaluri, David Schwalb, Majid Eshghi, Andrew Fishman
Triplication of the ureter is a rare urologic finding that has been well described in the literature. Patients can present with urinary tract infections, incontinence, and calculi. We present the case of a patient with extensive stone burden with right trifid and left bifid collecting systems. Stone management was performed with a multimodal approach using a combination of endoscopic and percutaneous approaches. Our systematic and staged approach highlights a method for efficacious stone treatment in a complex endourologic case...
2018: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/29580730/risk-factors-for-repeat-surgical-intervention-in-pediatric-nephrolithiasis-a-pediatric-health-information-system-database-study
#14
Jonathan S Ellison, Margarett Shnorhavorian, Assaf Oron, Kathleen Kieran, Thomas S Lendvay, Paul A Merguerian
INTRODUCTION: Successful surgical therapy for pediatric upper urinary tract calculi (UUTC) minimizes the need for repeat surgical interventions. However, staged procedures, whether planned or unplanned, are sometimes necessary. We assessed predictors of repeat intervention for children with UUTC using a nationwide administrative dataset. METHODS: Using the Pediatric Health Information System (PHIS) dataset, we assessed children with UUTC undergoing shock wave lithotripsy (SWL) or ureteroscopy (URS) for an index stone from January 2010 to June 2015...
March 16, 2018: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29569213/prevalence-pathophysiological-mechanisms-and-factors-affecting-urolithiasis
#15
REVIEW
Aslam Khan
The formation of urinary stone, urolithiasis, is one the oldest known disease affecting human throughout different civilizations and times. The exact pathophysiological mechanism of urolithiasis is not yet clear, as these calculi are of various types and too complex for simple understanding. A single theory cannot explain its formation; therefore, different theories are presented in various times for its explanation like free particle, fixed particle, Randall's plaque theory. In addition, various factors and components are identified that play an important role in the formation of these urinary calculi...
March 22, 2018: International Urology and Nephrology
https://www.readbyqxmd.com/read/29567091/non-contrast-mdct-for-ureteral-calculi-and-alternative-diagnoses-yield-in-adult-women-vs-in-adult-men
#16
Parisa Fani, Michael N Patlas, Sandra Monteiro, Douglas S Katz
PURPOSE: To determine the yield of non-contrast multi-detector computed tomography (MDCT) of the abdomen and pelvis in diagnosing ureteral calculi as well as other alternative acute conditions in male vs in female adult patients presenting to the emergency department with new onset of symptoms. METHODS: Our institutional review board approved a retrospective review of the official reports of the non-contrast MDCT examinations of the abdomen and pelvis performed on adults (18 years and older) presenting to our emergency department with a suspected ureteral calculus from October 1, 2011 to October 30, 2013...
February 2, 2018: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/29562765/comparison-of-flexible-ureterorenoscope-quality-of-vision-an-in-vitro-study
#17
Michele Talso, Silvia Proietti, Esteban Emiliani, Andrea Gallioli, Laurian Dragos, Andrea Orosa Andrada, Pol Servián, Aarón Barreiro, Guido Giusti, Emanuele Montanari, Bhaskar K Somani, Olivier Traxer
INTRODUCTION Flexible Ureterorenoscopy (fURS) is one of the best solution for treatment of renal calculi less than 2 cm and for upper tract urinary cancer (UTUC) conservative treatment. An adequate quality of vision is mandatory to help surgeon having better outcomes. No studies have been done, to our knowledge, about what fURS on the market has the best quality of vision. Material and Methods Seven different fURS were used to compare the image quality (Lithovue, OlympusV, OlympusV2, Storz FlexXC - in White Light and in ClaraChroma mode - , Wolf Cobra Vision, Olympus P6 and Storx Flex X2)...
March 21, 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29550956/imaging-non-vascular-complications-of-renal-transplantation
#18
Nancy Kim, Roxanna Juarez, Angela D Levy
In patients with end-stage renal disease, the treatment of choice for most patients is renal transplantation. Complications that occur after kidney transplant can be broadly divided into vascular and non-vascular categories. Non-vascular complications can further be divided into surgical and medical categories. When evaluating renal transplant imaging, it is helpful to consider the occurrence of complications in a timeline from time of surgery. Ultrasound is often the first modality used for evaluation of renal transplants particularly in the early postoperative period...
March 17, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29545046/modified-mechanical-percussion-for-upper-urinary-tract-stone-fragments-after-extracorporeal-shock-wave-lithotripsy-a-prospective-multi-center-randomized-controlled-trial
#19
Suoshi Jing, Bo Liu, Wengang Lan, Xin Zhao, Junsheng Bao, Junlin Ma, Zhimin Liu, Hongyan Liu, Tiejun Pan, Jianggen Yang, Dan Wu, Youli Zhao, Yuhan Wang, Zhiping Wang
OBJECTIVE: To investigate the effectiveness of modified mechanical percussion for eliminating upper urinary tract (UUT) stone fragments after extracorporeal shock wave lithotripsy (SWL). MATERIALS AND METHODS: We assigned patients aged 18-60 years with UUT calculi to the modified mechanical percussion (trial) or observation (control) group. Kidney-ureter-bladder radiography and ultrasound were used for diagnostic evaluation. The primary outcome was the stone-expulsion rate (SER) at 6 hours...
March 12, 2018: Urology
https://www.readbyqxmd.com/read/29524976/fluoroless-ureteroscopy-for-definitive-management-of-distal-ureteral-calculi-randomized-controlled-trial
#20
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
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