Read by QxMD icon Read


Moozhan Nikpanah, Lauren Kim, S Mojdeh Mirmomen, Rolf Symons, Ioannis Papageorgiou, William A Gahl, Kevin O'Brien, Juvianee I Estrada-Veras, Ashkan A Malayeri
OBJECTIVES: To use magnetic resonance imaging (MRI) and computed tomography (CT) to define abdominal involvement in Erdheim-Chester disease (ECD), and to investigate the association between these findings and the BRAFV600E mutation. METHODS: This prospective study was performed on 61 ECD patients (46 men). The MRI and CT imaging studies were reviewed independently by two experienced radiologists. The association between BRAFV600E mutation and imaging findings was analysed using Fisher's exact test, and odds ratios with 95% confidence intervals...
March 19, 2018: European Radiology
Min Soo Choo, Jun Hyun Han, Jong Keun Kim, Tae Young Shin, Won Ki Lee, Sang Kon Lee, Seong Ho Lee
PURPOSE: We compared the outcomes of SWL to treat distal ureter stones with regard to the conventional prone and supine positions using the transgluteal approach through the greater sciatic foramen. METHODS: A prospective, randomized, single-blind, and multicenter study was conducted between October 2014 and July 2015. The inclusion criteria were radio-opaque distal ureter stones with a maximum diameter of 0.5-2 cm as measured on a CT scan. The included 160 patients were randomly assigned to two groups: the prone group (n = 80; treated in the conventional prone position) and the transgluteal group (n = 80; treated in the supine position using a transgluteal approach)...
March 16, 2018: World Journal of Urology
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
Renata Mendes da Silva, Jorge Chaib Neto, Moaci Ferreira de Morais Júnior
No abstract text is available yet for this article.
January 2018: Radiologia Brasileira
B Borghese, P Santulli, L Marcellin, C Chapron
Endometriosis and adenomyosis are histologically defined. The frequency of endometriosis cannot be precisely estimated in the general population. Endometriosis is considered a disease when it causes pain and/or infertility. Endometriosis is a heterogeneous disease with three well-recognized subtypes that are often associated with each other: superficial endometriosis (SUP), ovarian endometrioma (OMA), and deep infiltrating endometriosis (DIE). DIE is frequently multifocal and mainly affects the following structures: the uterosacral ligaments, the posterior vaginal cul-de-sac, the bladder, the ureters, and the digestive tract (rectum, recto-sigmoid junction, appendix)...
March 11, 2018: Gynecologie, Obstetrique, Fertilite & Senologie
Omar Abdel-Rahman
BACKGROUND: Current staging paradigms from the American Joint Committee on Cancer (AJCC) staging system for upper urinary tract carcinomas treat locoregionally advanced (T4 and N+) and metastatic (M1) patients as a single entity (stage IV). The current study proposes a modification of the AJCC staging system where these 2 entities are separated. METHODS: The Surveillance, Epidemiology, and End Results (SEER) database (2004-2014) was accessed through SEER*Stat program...
February 22, 2018: Clinical Genitourinary Cancer
D A Friedlander, W W Ludwig, J R Jayman, A Akhavan
INTRODUCTION: Endoscopic injection of a bulking agent is a common first-line approach to the treatment of vesicoureteral reflux (VUR). While early outcomes are comparable to open ureteroneocystotomy, 5-25% of children will eventually develop recurrent reflux necessitating repeat injections or open ureteral reimplantation. OBJECTIVE: To determine whether prior endoscopic injection of a bulking agent impacts outcomes of subsequent open ureteral reimplantation. STUDY DESIGN: Using a retrospective cohort design, radiographic and clinical outcomes of open ureteral reimplantation were compared between patients with and without prior endoscopic correction of reflux...
March 1, 2018: Journal of Pediatric Urology
Hisanaga Horie, Koji Koinuma, Homare Ito, Ai Sadatomo, Daishi Naoi, Yoshihiko Kono, Yoshiyuki Inoue, Mitsuaki Morimoto, Makiko Tahara, Alan K Lefor, Naohiro Sata, Takahiro Sasaki, Hideharu Sugimoto
INTRODUCTION: Laparoscopic lateral pelvic lymph node dissection (LPLD) is technically challenging because of the complicated anatomy of the pelvic wall. To overcome this difficulty, we introduced preoperative 3-D simulation. The aim of the study is to investigate the usefulness of preoperative 3-D simulation for the safe conduct of laparoscopic LPLD for rectal cancer. METHODS: After undergoing colonoscopy, patients were brought to the radiology suite where multi-detector row CT was performed...
March 12, 2018: Asian Journal of Endoscopic Surgery
Iris Lim, Russ Chess-Williams, Donna Sellers
This study investigated the role of calcium sensitisation in the regulation of ureteral contractility with ageing. Isolated ureteral strips from young (6-month old) and older (3-year old) pigs were mounted in Krebs bicarbonate solution and contractility induced by the α1-adrenoceptor agonist phenylephrine (30 and 300 μM) and 5-HT (10 and 100 μM), recorded in the absence and presence of the rho-kinase inhibitors Y-27632 (10 μM) and fasudil (30 μM). Ureteral strips developed bursts of contractile activity which was measured as area under the curve (AUC) and frequency...
March 9, 2018: Mechanisms of Ageing and Development
Atsushi Aikawa, Masaki Muramatsu, Yusuke Takahashi, Yuko Hamasaki, Junya Hashimoto, Mai Kubota, Youji Hyoudou, Yoshihiro Itabashi, Takeshi Kawamura, Seiichiro Shishido
Lower urinary tract abnormalities are difficult to resolve in pediatric kidney transplant patients. Measure of residual urine, voiding cystourethrography, retrograde urethrography, cystometry, electromyography of urethral external sphincter muscle, urethrometry, and uroflowmetry are the primary methods for evaluation of lower urinary tract abnormalities. Endoscopic resection or ablation of urethral valves is required in children with posterior urethral valve to treat obstruction, but bladder function does not always recover and may deteriorate to end-stage renal failure even after the obstruction is released...
March 2018: Experimental and Clinical Transplantation
Andreas Lorenz, Pamela Kogler, Marcus Huth, Reinhold Kafka-Ritsch, Dietmar Öfner, Alexander Perathoner
PURPOSE: Resection of a long rectal stump after previous colectomy or Hartmann procedure often requires a combined transperitoneal and transperineal approach because of limited access through a perineal incision alone. Risks associated with this procedure include iatrogenic injury to bowels, nerves, ureters, vessels and sexual organs. This study reports on the feasibility and safety of perianal minimally invasive surgery (PAMIS) for the resection of long rectal stumps that would otherwise require a combined transperitoneal and perianal approach...
March 10, 2018: International Journal of Colorectal Disease
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
Shouzhe Lin, Dameng Lian, Weihua Liu, Aaron Haig, Ian Lobb, Ahmed Hijazi, Hassan Razvi, Jeremy Burton, Matthew Whiteman, Alp Sener
OBJECTIVES: To assess the effects of slow-releasing H2 S donor GYY4137 on post-obstructive renal function and injury following unilateral ureteral obstruction (UUO) by using the UUO and reimplantation (UUO-R) model in rats and to elucidate potential mechanisms by using an in vitro model of epithelial-mesenchymal transition (EMT). METHODS: Male Lewis rats underwent UUO at the left ureterovesical junction. From post-obstructive day (POD) 1-13, rats received daily intraperitoneal (IP) injection of phosphate buffered saline (PBS, 1 mL) or GYY4137 (200 μmol/kg/day in 1 mL PBS, IP)...
March 6, 2018: Nitric Oxide: Biology and Chemistry
Sarah Prattley, James Voss, Stephanie Cheung, Robert Geraghty, Patrick Jones, Bhaskar K Somani
OBJECTIVE: To assess outcomes of ureteroscopy for treatment of stone disease in the elderly. Ureteroscopy (URS) is an increasingly popular treatment modality for urolithiasis and its applications are ever expanding with the development of newer technologies. Its feasibility and outcomes within the elderly population to our knowledge remain under-reported. MATERIALS AND METHODS: We examined the patient demographics and surgical outcomes from our prospective database for patients ≥70 years who underwent URS for urolithiasis, in a 5-year period between March 2012 and December 2016...
March 9, 2018: International Braz J Urol: Official Journal of the Brazilian Society of Urology
Ho Won Kang, Kang Su Cho, Won Sik Ham, Dong Hyuk Kang, Hae Do Jung, Jong Kyou Kwon, Young Deuk Choi, Joo Yong Lee
Purpose: This study aims to assess the predictive factors and treatment outcomes of Steinstrasse formation following shock wave lithotripsy (SWL) for ureter stone. Materials and Methods: The medical records of 1,418 ureter stone patients who underwent one-session SWL from November 2005 to May 2013 at our medical institute were retrospectively reviewed. Finally, 551 patients met inclusion criteria. Maximal length and location of stone, stone attenuation (Hounsfield units), and skin-to-stone distance (SSD) were determined on pretreatment non-contrast computed tomography...
March 2018: Investigative and Clinical Urology
Benjamin West, Mohamed Keheila, Jason C Smith, Alexander Erskine, Samuel R Abourbih, Nazih Khater, D Duane Baldwin
Objective: Cryoablation of renal tumors adjacent to the ureter or pelvicalyceal system carries risks for thermal injury of the collecting system. Although cold antegrade perfusion has been described for radiofrequency ablation, warm saline perfusion for renal cryoablation has not been well-characterized. The purpose of this study was to determine the safety and feasibility of antegrade and retrograde warm saline perfusions during percutaneous renal cryoablation. Material and methods: A retrospective review was performed on 136 patients treated with percutaneous renal cryoablation at a single academic institution between 2009 and 2015...
March 2018: Turkish Journal of Urology
Jaepyeong Cha, Roger R Nani, Michael P Luciano, Aline Broch, Kihoon Kim, Jung-Man Namgoong, Rhushikesh A Kulkarni, Jordan L Meier, Peter Kim, Martin J Schnermann
Surgical methods guided by exogenous fluorescent markers have the potential to define tissue types in real time. Small molecule dyes with efficient and selective renal clearance could enable visualization of the ureter during surgical procedures involving the abdomen and pelvis. These studies report the design and synthesis of a water soluble, net neutral C4'-O-alkyl heptamethine cyanine, Ureter-Label (UL)-766, with excellent properties for ureter visualization. This compound is accessed through a concise synthetic sequence involving an N- to O-transposition reaction that provides other inaccessible C4'-O-alkyl heptamethine cyanines...
February 24, 2018: Bioorganic & Medicinal Chemistry Letters
Huanyi Shao, Ping Liu, Hua Zhang, Congde Chen, Xiaokun Lin
Cystoscopic technique is the current common method of retrieving double J ureteral stent in most pediatric urological centers. In this study, we evaluated the feasibility and efficacy of a novel noncystoscopic method to remove retained ureteral stents in pediatric patients.We reviewed all medical records from a total of 102 patients who were treated in our hospital between January 2013 and December 2016 to remove the double J ureteral stent retained into the ureter. The pediatric patients were divided into 2 groups based on different surgical options: cystoscopic group and noncystoscopic group...
January 2018: Medicine (Baltimore)
Philippa R Pavia, Allyson C Berent, Chick W Weisse, Dana Neiman, Kenneth Lamb, Demetrius Bagley
OBJECTIVE To describe the technique and short- and long-term outcomes for dogs undergoing double-pigtail ureteral stent placement for treatment of benign ureteral obstruction. DESIGN Retrospective case series. ANIMALS 44 dogs (57 ureters). PROCEDURES Medical records of dogs that underwent ureteral stenting for treatment of benign ureteral obstruction between 2010 and 2013 were reviewed. Signal-ment, history, pertinent diagnostic imaging results, endourologic and post-procedural details, duration of hospitalization, complications, and outcome (short term, 7 to 30 days; long term, > 30 days) were recorded...
March 15, 2018: Journal of the American Veterinary Medical Association
Megan Cray, Allyson C Berent, Chick W Weisse, Demetrius Bagley
CASE DESCRIPTION 4 cats were examined because of ureteral obstruction. CLINICAL FINDINGS Clinical and clinicopathologic abnormalities were nonspecific and included anorexia, lethargy, weight loss, anemia, leukocytosis, neutrophilia, lymphopenia, and azotemia. A diagnosis of pyonephrosis was made in all cats. The presence of bacteriuria was confirmed by means of urinalysis in 2 cats, bacterial culture of a urine sample obtained by means of preoperative cystocentesis in 2 cats, and bacterial culture of samples obtained from the renal pelvis intraoperatively in 3 cats...
March 15, 2018: Journal of the American Veterinary Medical Association
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"