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
Patrick J Hensley, Jeffrey Goodwin, Daniel L Davenport, Stephen E Strup, Andrew James
BACKGROUND: Radical cystectomy (RC) is delayed in a subset of patients who respond poorly to neoadjuvant chemotherapy (NAC). The present study investigated the clinicopathologic characteristics predicting extravesical disease at RC and the factors associated with NAC tolerability to improve patient selection and the sequence of definitive therapy. MATERIALS AND METHODS: Patients with cT2 urothelial carcinoma of the bladder who underwent NAC were stratified by the final pathologic stage: complete (ypT0N0), partial (≤ pT2), and nonresponse (> pT2 and/or N+)...
February 22, 2018: Clinical Genitourinary Cancer
Johannes Stein, Stefan Latz, Jörg Ellinger, Guido Fechner, Maher Safi, Philipp Krausewitz, Simone Müller, Karin Weyer, Stefan C Müller
BACKGROUND: Renal fungal bezoars are remarkably rare and mostly occur in immunodeficient patients. Only a small number of cases with immunocompetent patients have been published so far. The published treatment approaches comprised systemic antimycotic therapy and surgical or minimal invasive removal of the fungal balls. In some cases irrigation of the renal duct system with amphotericin B was performed. By obstruction of the urinary tract bezoars can lead to infected hydronephrosis and severe urosepsis with high lethality...
March 16, 2018: BMC Urology
Takamitsu Inoue, Jun Miyazaki, Daishi Ichioka, Shintaro Narita, Susumu Kageyama, Mikio Sugimoto, Koji Mitsuzuka, Yusuke Shiraishi, Hidefumi Kinoshita, Hironobu Wakeda, Takeshi Nomoto, Eiji Kikuchi, Yoshiyuki Matsui, Keiko Fujie, Tomonori Habuchi, Hiroyuki Nishiyama
BACKGROUND: To compare the prevalence of nephrotoxicity between patients with a solitary-functioning kidney versus those with bilateral-functioning kidneys during the administration of cisplatin-based chemotherapy for advanced urothelial carcinoma. METHODS: We retrospectively analyzed 244 advanced urothelial carcinoma patients treated with cisplatin-based chemotherapy between 2004 and 2010 at 17 institutes in Japan. The 24 h creatinine clearance, Cockcroft-Gault formula, and estimated glomerular filtration rate equation (eGFR), were compared before all chemotherapies...
March 14, 2018: BMC Cancer
Karine Sahakyan, Melissa R Spevak, Harvey A Ziessman, Michael A Gorin, Steven P Rowe
The "drooping lily" sign is identified on intravenous urography or voiding cystourethrography in patients with a duplicated renal collecting system and refers to inferolateral displacement of a functioning lower pole moiety by an obstructed upper pole collecting system. In this case, a 2-month-old girl with a prenatal diagnosis of hydronephrosis was found to have a "scintigraphic drooping lily" sign on Tc-dimercaptosuccinic acid renal scan. Evaluation with ultrasound and voiding cystourethrography confirmed a duplicated collecting system and obstructed upper pole moiety...
March 13, 2018: Clinical Nuclear Medicine
Hanan Goldberg, Gil N Bachar, Riad Majadla, Ofer Yossepowitch, Jack Baniel, Edward Ram
BACKGROUND: Right hydronephrosis secondary to acute appendicitis is an under-reported phenomenon with only several case reports published. OBJECTIVES: To assess the incidence of this phenomenon in our database of patients diagnosed with acute appendicitis. METHODS: Data were collected on 1092 patients who underwent surgery due to acute appendicitis between 2003 and 2007 in our tertiary medical center. The data entailed demographic, surgical, and hospitalization parameters including ultrasound or computed tomography examinations and presence of right hydronephrosis prior to surgery...
March 2018: Israel Medical Association Journal: IMAJ
Wesley Baas, Blake O'Connor, Ahmed El-Zawahry
A 57-year-old African American male presented with vague abdominal pain and bilateral flank pain. The patient was found to have bilateral hydronephrosis and significant renal function impairment secondary to pelvic lipomatosis. Pelvic lipomatosis represents a clinically-diagnosed unique cause of ureteral obstruction and subsequent renal impairment. We present a case report of newly diagnosed pelvic lipomatosis, the clinical and imaging characteristics for diagnosis, and its conservative management with serial ureteral stent exchanges...
February 2018: Canadian Journal of Urology
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
Dapeng Jiang, Zhoutong Chen, Houwei Lin, Maosheng Xu, Hongquan Geng
OBJECTIVES: This study was performed to analyze the predictive factors of a contralateral operation after initial pyeloplasty in patients with antenatally detected bilateral ureteropelvic junction obstruction. METHODS: Patients with prenatally diagnosed bilateral ureteropelvic junction obstruction who underwent initial pyeloplasty (aged <12 months at initial pyeloplasty) were offered to participate in the study. Patients were recruited from January 2012 to December 2015...
March 8, 2018: Urologia Internationalis
Satoshi Inoue, Hiroki Ide, Kazutoshi Fujita, Taichi Mizushima, Guiyang Jiang, Takashi Kawahara, Seiji Yamaguchi, Hiroaki Fushimi, Norio Nonomura, Hiroshi Miyamoto
Using preclinical models, we have recently found that ELK1, a transcriptional factor that activates downstream targets, including c-fos proto-oncogene, induces bladder cancer outgrowth. Here, we immunohistochemically determined the expression status of phospho-ELK1, an activated form of ELK1, in upper urinary tract urothelial carcinoma (UUTUC). Overall, phospho-ELK1 was positive in 47 (47.5%; 37 weak (1+) and 10 moderate (2+)) of 99 UUTUCs, which was significantly ( P = 0.002) higher than in benign urothelium (21 (25...
March 8, 2018: International Journal of Molecular Sciences
Shigeki Matsubara, Tatsuo Morita, Shigeaki Muto, Tatsuya Suzuki
No abstract text is available yet for this article.
March 7, 2018: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
Wei Li, Sheng Zhao, Fan Cheng, Ting Rao, Weimin Yu, Yuan Ruan, Run Yuan, Xiaobing Yao
The influence of intraabdominal pressure which is necessary to maintain the operating area during the surgery cannot be ignored especially on the kidneys. Many articles have reported the effect of intraabdominal pressure on normal kidneys. However, the influence of intraabdominal pressure on hydronephrosis kidneys is rarely studied. The aim of the present study was to clarify whether intraabdominal pressure tolerance is modified in various degrees of kidney hydronephrosis by evaluating oxidative damage and mitochondrial injuries...
March 1, 2018: Molecular Medicine Reports
Hikmat Jabrayilov, Murat Yavuz Koparal, Serhat Gürocak, Bora Küpeli, Mustafa Özgür Tan
In this study, we aimed to determine factors affecting the success rate of percutaneous nephrolithotomy (PNL) in children. The series consisted of 41 consecutive children operated on by the same surgical team for renal calculi with PNL between June 2002 and May 2015 in our institution. A single calyx or pelvic stone was described as simple, while calculi located in more than one location (calyx and pelvis or more than one calices) or staghorn stones were described as complex. The procedure was deemed successful if the patient was completely stone-free (SF) or had residual fragments <4 mm...
March 4, 2018: Journal of Clinical Medicine
Jennifer E Melvin, Michael C Ost, Jennifer R Marin
We present 2 cases of patients with abdominal trauma who were found to have hydronephrosis on point-of-care ultrasound secondary to previously undiagnosed ureteropelvic junction obstructions. We review the ultrasound findings, technique, and relevant literature regarding renal point-of-care ultrasound and ureteropelvic junction obstruction.
March 5, 2018: Pediatric Emergency Care
Cosimo Bleve, Valeria Bucci, Maria Luisa Conighi, Francesco Battaglino, Lorenzo Costa, Lorella Fasoli, Elisa Zolpi, Salvatore Fabio Chiarenza
Horseshoe kidney (HSK) is a congenital defect of the urinary tract that occurs in 0.25% of the general population. Laparoscopic Vascular Hitch (LVH) according to Hellstrom-Chapman represent an alternative approach in treatment of extrinsic hydronephrosis by crossing vessels (CV) in pediatric age. In our Department from 2006 to 2016, 36 children with extrinsic-Uretero-Pelvic-Junction (UPJ)-Obstruction (UPJO) underwent laparoscopic vessels transposition. Over the last 4years, we have treated three patients with extrinsic hydronephrosis in HSK; two males and one female respectively of 6, 7 and 8years...
December 13, 2017: La Pediatria Medica e Chirurgica: Medical and Surgical Pediatrics
Wei Shan Lim, Kenneth Chen, Tsung Wen Chong, Gordon Minru Xiong, William R Birch, Jisheng Pan, Bae Hoon Lee, Pei Shan Er, Abhijit Vijay Salvekar, Subbu S Venkatraman, Yingying Huang
A bilayer swellable drug-eluting ureteric stent (BSDEUS) is engineered and implemented, as a sustained drug delivery platform technology that enhances localized drug delivery to the highly impermeable urothelium, for the treatment of urothelial diseases such as strictures and carcinomas. On deployment, the device swells to co-apt with the ureteric wall and ensure drug availability to these tissues. BSDEUS consists of a stent spray-coated with a polymeric drug containing polylactic acid-co-caprolactone (PLC) layer which is overlaid by a swellable polyethylene glycol diacrylate (PEGDA) based hydrogel...
February 20, 2018: Biomaterials
Christina P Carpenter, Ashley Rawson, David S Hains, Dana W Giel
Nephrogenic diabetes insipidus (NDI), a rare cause of polyuria and polydipsia in children, is usually managed with medications and careful monitoring of water intake. We present a child who was incidentally found to have right hydronephrosis secondary to ureteropelvic junction obstruction, and was subsequently also diagnosed with NDI. After being medically managed, he underwent open right pyeloplasty. His polydipsia abated within one month of surgery, and he has done well off of medications since that time...
February 27, 2018: Urology
Alissa C Deming, Kathleen M Colegrove, Padraig J Duignan, Ailsa J Hall, James F X Wellehan, Frances M D Gulland
Urogenital carcinoma is common in wild California sea lions ( Zalophus californianus) along the west coast of the US. From 1979 to 1994, this cancer was observed in 18% (66/370) of necropsied subadult and adult sea lions at The Marine Mammal Center in Sausalito, California. A retrospective review of records from 1 January 2005 to 31 December 2015 was performed to characterize prevalence and characteristics of cancer over this decade. Fourteen percent (263/1917) of necropsied sea lions had cancer, of which 90% (237/263) were urogenital carcinoma...
March 2, 2018: Journal of Wildlife Diseases
Laurel Willig, Erin Paquette, D Micah Hester, Bradley A Warady, John D Lantos
A 3-month-old boy with failure to thrive was referred to a nephrology clinic after a diagnostic workup for failure to thrive revealed a serum urea nitrogen level of 95 mg/dL and creatinine level of 3.6 mg/dL. A renal ultrasound revealed marked bilateral hydronephrosis with little remaining renal cortex in either kidney. A voiding cystourethrogram revealed evidence of posterior urethral valves. The child had no evident comorbidities. Fulguration of the valves was successfully performed but did not lead to improvement in kidney function...
February 28, 2018: Pediatrics
Giulia I Lane, Ronak A Gor, Jenna Katorski, Sean P Elliott
AIMS: Neurogenic bladders (NGB) with detrusor leak point pressures >40 cm H2 O (dLPP > 40) have been associated with deterioration of renal function in children with myelomeningocele. For these children, careful pressure management preserves renal function. However, similar evidence is lacking in adult congenital urology (ACU) patients with NGB. We describe renal functional outcomes of non-surgical management of adults with dLPP > 40 or premicturition detrusor pressure (PMDP) >40 cm H2 O, consisting of close follow-up with urodynamic studies (UDS) and renal ultrasound (RUS), paired with adjustments to clean intermittent catheterization (CIC) frequency, anticholinergics, and addition of onabotulinumtoxinA toxin (BTX) injection...
February 28, 2018: Neurourology and Urodynamics
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"