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https://www.readbyqxmd.com/read/28900827/lifetime-radiation-exposure-in-patients-with-recurrent-nephrolithiasis
#1
REVIEW
Mohamed A Elkoushy, Sero Andonian
Patients presenting with nephrolithiasis often undergo repeated imaging studies before, during, and after management. Considering the significant risk of stone recurrence in primary stone-formers, repeated imaging studies are not uncommon. Cumulative effects of ionizing radiation exposure from various imaging studies could potentially increase the risk for developing cataracts and solid malignancies in urolithiasis patients. Therefore, practitioners planning or performing imaging studies with ionizing radiation are compelled to keep radiation exposure to humans and the environment as low as possible, thus strictly adhering to the ALARA (As Low as Reasonably Achievable) principles...
September 12, 2017: Current Urology Reports
https://www.readbyqxmd.com/read/28894841/symptomatic-distal-ureteral-stone-in-an-ileal-ureter-treatment-by-combined-supine-ureteroscopy-and-mini-percutaneous-nephrolithotomy
#2
Florian Schott, Benedikt Becker, Andreas J Gross, Christopher Netsch
Urolithiasis is a well-known and common late complication in patients with urinary diversion. Patients without urinary diversion lead to symptoms such as hematuria and ureteral colic, whereas stones in patients with urinary diversion tend to be asymptomatic and are often diagnosed incidentally during staging examinations of oncologic diseases. We report the case of a 64-year-old male patient with a lower pole kidney stone and a stone in the ileal ureter substitution. He presented with diffuse abdominal and left-sided flank pain...
2017: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/28868505/radiological-noninvasive-assessment-of-ureteral-stone-impaction-into-the-ureteric-wall-a-critical-evaluation-with-objective-radiological-parameters
#3
Ozlem Elibol, Kadihan Yalcin Safak, Ayse Buz, Bilal Eryildirim, Kutluhan Erdem, Kemal Sarica
PURPOSE: To determine the predictive value of certain radiological parameters for an objective asssessment of the presence of ureteral stone impaction. MATERIALS AND METHODS: Seventy-nine patients with a single proximal ureteral stones were retrieved from the departmental database. Both clinical and particularly radiological data of all cases were well evaluated on this aspect. In addition to the time period between the first colic attack and definitive management; diameter of proximal ureter and renal pelvis, longitudinal and transverse stone size, Hounsfied unit (HU) of the stone and lastly ureteral wall thickness at the impacted stone site were all carefully evaluated and noted...
September 2017: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/28861303/flouroscopy-free-technique-is-safe-and-feasible-in-retrograde-intrarenal-surgery-for-renal-stones
#4
Hacı İbrahim Çimen, Fikret Halis, Hasan Salih Sağlam, Ahmet Gökçe
OBJECTIVE: The aim of this study was to present outcomes of our patients who had undergone retrograde intrarenal surgery (RIRS) with fluoroscopy-free technique and evaluate the efficacy and safety of the technique. MATERIAL AND METHODS: Between January 2013 and June 2015 the outcomes of 93 patients who had undergone RIRS with fluoroscopy-free technique were retrospectively evaluated. Our RIRS technique involved preoperative assessment of ureter by semi-rigid ureteroscope, inserting guidewire through semi-rigid ureteroscope, inserting ureteral access sheath over the guidewire with the visiual guidance of semi-rigid ureteroscope, passing flexible ureteroscope through the sheath, dusting the stone with holmium laser, rechecking the ureter with semi-rigid ureteroscope and inserting double J stent through semi-rigid ureteroscope...
September 2017: Turkish Journal of Urology
https://www.readbyqxmd.com/read/28845939/-experience-in-ureteroscopy-for-managing-urolithiasis-in-one-clinic-when-does-quantity-transform-into-quality
#5
V Yu Ivanov, V A Malkhasyan, I V Semenyakin, D Yu Pushkar
INTRODUCTION: In recent years, there has been an increasing role of ureteroscopy in managing urinary tract calculi of various locations. Several studies have reported the relationship between the efficacy and safety of ureteroscopic interventions and surgeons skills and hospital caseload volume. The aim of our study was to assess the effectiveness of urethroscopic stone removal, the changes in treatment effectiveness, frequency and types of complications along with gaining experience in these interventions...
July 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28845938/-questions-of-terminology-systematization-and-grading-of-complications-of-contact-ureteral-lithotripsy
#6
V V Dutov, V V Bazaev, E A Mamedov, S B Urenkov, A A Podoinitsyn
AIM: To investigate the advantages and disadvantages of the current variants of systematization and grading of complications of contact ureteral lithotripsy (CULT) and develop a working classification of CULT complications. MATERIALS AND METHODS: The study analyzed results of 545 fluoroscopy-guided endoscopic procedures performed at the MRRCI Clinic of Urology from 2008 to 2015 in 506 patients with ureterolithiasis. RESULTS: The proposed and implemented classification and terminology of CULT complications unifies the diagnostic and management algorithm...
July 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28843777/feasibility-of-intracorporeal-robotic-assisted-laparoscopic-appendiceal-interposition-for-ureteral-structure-disease-a-case-report
#7
Vidhush K Yarlagadda, Jeffrey W Nix, Daniel G Benson, J Patrick Selph
OBJECTIVE: To describe a robotic-assisted laparoscopic technique for using the appendix to repair ureteral stricture disease MATERIALS AND METHODS: A case of a patient presenting with a 5cm obliterative right ureteral stricture was reviewed, and surgical technique, complications, and outcomes were reported. RESULTS: Our patient developed a right-sided 5 cm obliterative ureteral stricture secondary to recurrent stone disease and pyelonephritis. He underwent an uncomplicated robotic-assisted laparoscopic repair of his stricture with interposition of the appendix between the two segments of ureter...
August 23, 2017: Urology
https://www.readbyqxmd.com/read/28836969/the-application-of-a-novel-integrated-rigid-and-flexible-nephroscope-in-percutaneous-nephrolithotomy-for-renal-staghorn-stones
#8
Huan Yang, Jianxing Li, Gang Long, Shaogang Wang
BACKGROUND: Renal staghorn stones are challenging for urologists to ensure maximum stone clearance and minimal morbidity. Percutaneous nephrolithotomy (PCNL) has become the gold standard treatment for renal staghorn stones. To assess the safety and efficacy of a novel integrated rigid and flexible percutaneous nephroscope(Rigi-flex nephroscope) in PCNL for renal staghorn stones.We present our initial experience with this new technique. METHODS: From March to July 2016, a prospective analysis of 3 patients with staghorn stones treated with Rigi-flex nephroscope in PCNLunder totally ultrasound guidance by paravertebral block (PVB) anesthesia was done...
August 24, 2017: BMC Urology
https://www.readbyqxmd.com/read/28832315/amyloidosis-and-acute-hemorrhage-of-the-kidney-ureter-and-bladder
#9
Dany N Hanna, Jason A Levy, Jonah S Marshall
Gross hematuria is a common occurrence in adults. The differential diagnosis is extensive, including: malignancy, trauma, inflammation of the urinary tract, and stones. While, urinary tract amyloidosis represents only a small percentage of causative gross hematuria, it is concerning because of its superficial resemblance to malignant processes. We report the case of an 82-year-old male with concurrent primary amyloidosis of the kidney, ureter and bladder in the setting of acute hemorrhage. Histopathological examination of several biopsied samples confirmed our diagnosis...
August 2017: Canadian Journal of Urology
https://www.readbyqxmd.com/read/28827106/evaluation-of-biofilm-induced-urinary-infection-stone-formation-in-a-novel-laboratory-model-system
#10
Trace Hobbs, Logan N Schultz, Ellen G Lauchnor, Robin Gerlach, Dirk Lange
PURPOSE: Infection stones comprise approximately 15% of all urinary tract stones and are induced by infection with urease-positive pathogens. The bacteria within the stone matrix present significant treatment impediments compared to metabolic kidney stones. While much is known about how urinary composition regulates metabolic stone formation, there is a general lack of knowledge around which urinary factors regulate the rate of infection stone formation. Unfortunately, more in-depth research into infection stones is limited by the lack of suitable models for the real-time study of bacterial biofilm formation and stone formation under varying conditions...
August 18, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28826249/outcomes-of-ureterorenoscopic-stone-treatment-in-301-patients-with-a-solitary-kidney
#11
Jaap D Legemate, Fernando Marchant Gonzalez, Abderrazak Bouzouita, Shengwen Li, Craig McIlhenny, Nicole L Miller, Alberto Saita, Jean J M C H de la Rosette
OBJECTIVES: To determine the stone-free rates and intra- and postoperative complication rates and grades of ureterorenoscopic stone treatment in patients with a solitary kidney. METHODS: This study is a sub-analysis of the CROES-URS study, which is a prospective international multicenter observational study. Over a one year period consecutive patients treated with ureterorenoscopy for urinary stones were included. Patients entered in this analysis were those with a solitary functioning kidney...
August 21, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28816298/-multiple-endoscopy-for-the-treatment-of-upper-urinary-tract-calculi-following-ileal-conduit-a-case-report-and-literature-review
#12
B Wang, J F Ye, L Zhao, H Bi, J Lu, L L Ma
Upper urinary tract calculi with infection is a quite difficult acute urologic emergency. And what is more, upper urinary tract obstruction after radical cystectomy following urinary diversion may be fatal in the vulnerable patients with this kind of situation. Postoperative anatomy and other factors affect the upper urinary tract calculi, and urinary tract infection greatly increased the risk. But it is particularly difficult to handle with patients with poor general condition and septic shock treatment, so how to optimize the selection program is worth further studying...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28816278/-analysis-of-development-safety-and-efficacy-of-percutaneous-nephrolithotomy-for-management-of-upper-urinary-tract-calculi-in-pediatric-patients
#13
L P Yu, T Xu
OBJECTIVE: To evaluate the development, safety and efficacy of percutaneous nephrolithotomy(PNL) for management of upper urinary tract calculi in pediatric patients. METHODS: In the study, 77 pediatric patients undergoing 87 PNLs through mini or standard tract for upper urinary tract calculi between January 2005 and December 2016 in Peking University People's hospital were reviewed, including 69 renal calculi, 6 upper ureteral calculi, 12 renal and upper ureteral calculi, 35 single calculi, 43 multiple calculi and 9 staghorn calculi...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28816277/-characteristics-of-ureteral-stone-position-and-dilatation-of-ureter-in-patients-before-treated-with-endourologic-lithotripsy
#14
H Y Ye, Q Q Xu, K Ma, X B Huang
OBJECTIVE: To investigate the position and the size of ureteral stone in patients before treated with ureteroscopic lithotripsy or percutaneous nephrolithotomy (PCNL), as well as the dilatation of ureter caused by stone, which may be helpful for better understanding of pathogenesis of ureteral stone and improvement of the diagnosis and treatment in clinic. METHODS: A total of 129 cases with ureteral stone for endourologic lithotripsy in Peking University People's Hospital from Aug...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28808281/surveillance-bias-in-cancer-risk-after-unrelated-medical-conditions-example-urolithiasis
#15
Kari Hemminki, Otto Hemminki, Asta Försti, Kristina Sundquist, Jan Sundquist, Xinjun Li
We analysed cancer risks in patients with urinary tract stones but some features of the generated results alarmed us about possible surveillance bias, which we describe in this report. We used nationwide Swedish hospital records to identify patients with urinary tract stones (N = 211,718) and cancer registration data for cancer patients for years 1987 to 2012. Standardized incidence ratios (SIRs) for cancer were calculated after the last medical contact for urinary tract stones. All cancers were increased after kidney (SIR 1...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28802544/a-role-of-the-endothelial-nitric-oxide-system-in-acute-renal-colic-caused-by-ureteral-stone
#16
Emre Bulbul, Elif Funda Sener, Nahide Ekici Gunay, Bahadir Taslidere, Elif Taslidere, Serhat Koyuncu, Nurullah Gunay
BACKGROUND AND AIMS: Endothelial nitric oxide synthase gene polymorphisms play a role in some pathophysiological processes. In this study, the possible effects of endothelial nitric oxide synthase gene polymorphisms on ureteral stone disease in patients who were admitted to the emergency department with severe pain due to renal colic are examined. MATERIALS AND METHODS: The study groups were designed as controls and patients. The control group was formed from the healthy volunteers who applied to the blood center next to the emergency service...
August 7, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28801219/renal-forniceal-rupture-is-conservative-management-safe
#17
Tara Nikonow Morgan, Jathin Bandari, Mohammed Shahait, Timothy Averch
OBJECTIVE: To outline treatment considerations and outcomes for a cohort of patients with forniceal rupture with the aim of adding to a very limited body of literature regarding clinical practice in this area. METHODS: We retrospectively searched all radiographic records for patients treated at our institution between January 2009 and January 2016 with forniceal rupture. We compiled demographic data, etiology, clinical factors, treatments, and outcomes. RESULTS: Of the 103 patients analyzed, the median age at presentation was 64 years (interquartile range 52-73), and 56 (54%) were female...
August 8, 2017: Urology
https://www.readbyqxmd.com/read/28792192/early-term-effect-of-ureterorenoscopy-urs-on-the-kidney-research-measuring-ngal-kim-1-fabp-and-cys-c-levels-in-urine
#18
Erdal Benli, Sema Nur Ayyildiz, Selma Cirrik, Tevfik Noyan, Ali Ayyildiz, Abdullah Cirakoglu
AIM: URS is a very commonly used procedure for treatment of ureter stones. Increased hydrostatic pressure in the collecting system linked to fluids used during the procedure may cause harmful effects on the kidney. The aim of this study is to determine whether the URS procedure has a negative effect on the kidney by investigating NGAL, KIM-1, FABP and Cys C levels in urine. MATERIAL AND METHODS: This study included 30 patients undergoing ureterorenoscopy (URS) for ureter stones...
August 8, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28792143/significance-of-neutrophil-to-lymphocyte-ratio-as-a-novel-indicator-of-spontaneous-ureter-stone-passage
#19
Kwang Suk Lee, Jee Soo Ha, Kyo Chul Koo
PURPOSE: Stone size and location are generally considered the most important factors associated with spontaneous ureter stone passage (SSP). Several parameters related to inflammatory changes have been identified as predictors associated with SSP. Our aim was to investigate the predictive role of neutrophil-to-lymphocyte ratio (NLR) for SSP. MATERIALS AND METHODS: A retrospective review was performed on 131 patients who were referred to the urology outpatient clinic and diagnosed with unilateral ureteral stones at our emergency department between July 2016 and December 2016...
September 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28770662/complications-in-extracorporeal-shockwave-lithotripsy-a-cohort-study
#20
Magnus Wagenius, Jon Jakobsson, Johan Stranne, Adam Linder
OBJECTIVE: The aim of this study was to evaluate clinically relevant complications within 14 days after extracorporeal shockwave lithotripsy (ESWL) in a modern setting. MATERIALS AND METHODS: Consecutive ESWL treatments between 2009 and 2015 in Ängelholm Hospital, Sweden, were analyzed retrospectively. The primary outcome was complications in patients seeking medical attention within 14 days after ESWL. Multivariable analysis was used to adjust for confounders such as diabetes, stone size and location, and presence of a urinary stent...
August 3, 2017: Scandinavian Journal of Urology
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