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Renal Ultrasound

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https://www.readbyqxmd.com/read/28447112/-imaging-diagnostics-of-breast-metastases-from-extramammary-tumors
#1
REVIEW
S Wienbeck, S Nemat, J Lotz, A Surov
Breast metastases of solid extramammary tumors are very rare in comparison to primary malignancies of the breast and account for only 0.33-6.3% of all malignant neoplasms of the breast. The most common primary tumors are malignant melanoma, distant sarcomas, lung cancer, ovarian cancer, renal cell cancer and thyroid cancer in decreasing order of frequency. This review article summarizes the clinical features and the different imaging findings of breast metastases from different extramammary solid tumors. Breast metastases are often incidental findings in computed tomography (CT) or positron emission tomography CT (PET-CT) imaging...
April 26, 2017: Der Radiologe
https://www.readbyqxmd.com/read/28442139/intraoperative-ultrasound-assisted-approach-for-endoscopic-treatment-of-vesicoureteral-reflux-in-children
#2
Elisa Zambaiti, Maria Sergio, Alessandra Casuccio, Sergio Salerno, Marcello Cimador
PURPOSE: Despite minimal invasiveness and high success rate, guidelines still prescribe voiding Cystourethrogram (VCUG) after endoscopic treatment for vesicoureteral reflux (VUR) in children. The aim of this paper was to analyze whether intraoperative ultrasound (IO-US) could improve surgical accuracy and perioperative counseling, thus potentially decreasing the need for postoperative VCUG. METHODS: We selected children treated for moderate to high grade VUR, renal scarring or repeated infections under antibiotic prophylaxis from January to December 2015...
April 18, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28441700/ultrasound-based-renal-sympathetic-denervation-for-the-treatment-of-therapy-resistant-hypertension-a-single-center-experience
#3
Karl Fengler, Robert Höllriegel, Thomas Okon, Thomas Stiermaier, Karl-Philipp Rommel, Stephan Blazek, Christian Besler, Max von Roeder, Martin Petzold, Gerhard Schuler, Philipp Lurz
INTRODUCTION: The effectiveness of renal sympathetic denervation (RDN) as a treatment for therapy-resistant hypertension has been doubted as the Simplicity-HTN-3 trial was unable to show any treatment benefit over sham procedure. This might partly be explained by a high procedural variability in treatment with radiofrequency-based catheters. Recently, newer systems for RDN, like ultrasound-based devices, have been introduced into practice. To date however, data on their effectiveness for the treatment of resistant hypertension are scarce...
June 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28441172/intravascular-ultrasound-and-outcomes-after-drug-eluting-stent-implantation
#4
Gary S Mintz
There have been nine published randomized trials and 30 registry studies comparing intravascular ultrasound (IVUS)-guided drug-eluting stent implantation versus conventional angiographic guidance. These trials and registries have been evaluated and summarized in (i) eight meta-analyses that included from nine to 18 registries and from one to seven randomized trials and (ii) four meta-analyses that included from three to eight randomized trials. Although with one exception no two meta-analyses have included the same trials or studies, in each meta-analysis, IVUS guidance was associated with a reduction in major adverse cardiac events as well as secondary hard endpoints of death (primarily cardiovascular mortality), myocardial infarction, and stent thrombosis, especially in randomized trial meta-analyses...
June 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28437563/selective-imaging-modalities-after-first-pyelonephritis-failed-to-identify-significant-urological-anomalies-despite-normal-antenatal-ultrasounds
#5
Gylli Mola, Therese Ramstad Wenger, Petra Salomonsson, Inge Jenny Dahl Knudsen, Jan Lysgaard Madsen, Søren Møller, Beth Härstedt Olsen, Pablo Gustavo Vinicoff, Jorgen Thorup, Dina Cortes
AIM: We investigated the consequences of applying different imaging guidelines for urological anomalies after first pyelonephritis in children with normal routine antenatal ultrasounds. METHODS: The cohort comprised 472 children treated for their first culture positive pyelonephritis and investigated with ultrasound and renal scintigraphy. We excluded patients with known urological anomalies and patients born before routine antenatal ultrasound. We followed the cohort for a median of 5...
April 24, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28435035/the-expanding-role-of-advanced-practice-providers-in-urologic-procedural-care
#6
Joshua P Langston, Richard Duszak, Venetia L Orcutt, Heather Schultz, Brad Hornberger, Lawrence C Jenkins, Jennifer Hemingway, Danny R Hughes, Raj S Pruthi, Matthew E Nielsen
OBJECTIVE: To understand the role of Advanced Practice Providers (APPs) in urologic procedural care, and its change over time. As the population ages and the urologic workforce struggles to meet patient access demands, the role of APPs in the provision of all aspects of urologic care is increasing. However, little is currently known about their role in procedural care. MATERIALS AND METHODS: Commonly performed urologic procedures were linked to Current Procedural Terminology (CPT) codes from 1994 to 2012...
April 20, 2017: Urology
https://www.readbyqxmd.com/read/28432469/renal-findings-in-patients-with-mulibrey-nanism
#7
Johanna Sivunen, Susann Karlberg, Jouko Lohi, Niklas Karlberg, Marita Lipsanen-Nyman, Hannu Jalanko
BACKGROUND: Mulibrey nanism (MUL) is a rare inherited disease caused by genetic defects affecting peroxisomal TRIM37 protein. MUL affects multiple organs, leading to growth retardation and early onset type 2 diabetes. We aimed to characterize the structure and function of kidneys and the urinary tract in a large cohort of Finnish MUL patients. METHODS: Ultrasound, magnetic resonance imaging (MRI), and autopsy findings of the kidneys and urinary tract from 101 MUL patients were retrospectively analyzed...
April 22, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28429575/recovery-from-talaromyces-marneffei-involving-the-kidney-in-a-renal-transplant-recipient-a-case-report-and-literature-review
#8
Juan Peng, Zhiyong Chen, Ruiming Cai, Xianen Huang, Liying Lin, Weixiang Liang, Zhongtang Xiong, Juan Chen, Hui Chen, Yuexin Yang, Shaoyan Liu, Qingping Jiang
Talaromyces marneffei is an emerging opportunistic infection among immunocompromised patients. We observe the first native case of disseminated T. marneffei involving the kidney in a renal transplant recipient in mainland China. We describe the comprehensive clinical course, and ultrasound imaging of renal transplant biopsy, pathologic images, and electron microscopy observation of the biopsy specimen, highlighting the relevance of biopsy findings and the blood culture. We also focus on the treatment and good outcome of the patient...
April 21, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28429490/contrast-enhanced-ultrasound-classification-of-previously-indeterminate-renal-lesions
#9
Jessica G Zarzour, Mark E Lockhart, Janelle West, Eric Turner, Bradford E Jackson, John V Thomas, Michelle L Robbin
OBJECTIVES: To determine the utility of contrast-enhanced ultrasound (US) for characterizing renal lesions that were indeterminate on prior imaging. METHODS: This Institutional Review Board-approved retrospective diagnostic accuracy study evaluated all patients who underwent renal contrast-enhanced US examinations from 2006 to 2015 at our tertiary care hospital. We compared the number of lesions definitively characterized by contrast-enhanced US with the indeterminate lesions by prior imaging...
April 21, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28427905/abdominal-aortic-aneurysm-screening-practices-impact-of-the-2014-u-s-preventive-services-task-force-recommendations
#10
Evan J Zucker, Alexander S Misono, Anand M Prabhakar
PURPOSE: To assess changes in abdominal aortic aneurysm (AAA) ultrasound screening associated with the release of revised U.S. Preventive Services Task Force (USPSTF) recommendations on June 24, 2014. METHODS: All AAA screening ultrasound examinations performed in the Massachusetts General Hospital radiology department in the 15 months before and after the new guidelines were retrospectively reviewed to assess changes in examination volume and appropriateness, demographics, aneurysm detection rate and size at diagnosis, frequency and type of incidental findings, and radiologist recommendations...
April 17, 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28427645/ultrasound-assisted-extraction-of-achyrocline-satureioides-prevents-contrast-induced-nephropathy-in-mice
#11
Ketheley L Guss, Stefano Pavanni, Bruno Prati, Lucas Dazzi, Jairo P de Oliveira, Breno V Nogueira, Thiago M C Pereira, Marcio Fronza, Denise C Endringer, Rodrigo Scherer
Achyrocline satureioides or Macela, has been largely used in traditional folk medicine in Brazil as an anti-inflammatory agent and to treat various digestive disorders. The aim of the present study was to evaluate the preventive action of the extracts of A. satureioides obtained by maceration and ultrasound-assisted extraction, quercetin and N-acetylcysteine against contrast-induced nephropathy in mice. The antioxidant activity, cytotoxicity and inhibition of nitric oxide (NO) production in macrophages were evaluated...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28427128/-the-application-value-of-contrast-enhanced-ultrasound-in-the-surgery-of-renal-masses
#12
M H Liu, J H Shi, Q M H Wangqi, Y Q Lin, Z X Sun
Objective: To investigate the clinical value of contrast-enhanced ultrasound in the diagnosis of renal masses. Methods: A total of 50 patients with renal masses who underwent partial nephrectomy were analyzed from January 2014 to October 2016 in the Department of Urology of China-Japan Union Hospital of Jilin University.In the intraoperative contrast-enhanced ultrasound, the characteristics of ultrasound imaging were recorded including location, size, boundary, echo, real-time internal and peripheral blood and renal pelvis distance, artery, guidance on the selection of surgical methods, intraoperative real-time estimation of the extent of tumor resection...
April 18, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28426815/using-controlled-attenuation-parameter-combined-with-ultrasound-to-survey-non-alcoholic-fatty-liver-disease-in-hemodialysis-patients-a-prospective-cohort-study
#13
Yi-Hao Yen, Jin-Bor Chen, Ben-Chung Cheng, Jung-Fu Chen, Kuo-Chin Chang, Po-Lin Tseng, Cheng-Kun Wu, Ming-Chao Tsai, Ming-Tsung Lin, Tsung-Hui Hu
BACKGROUND AND AIMS: Controlled attenuation parameter (CAP) is a non-invasive method for measuring hepatic steatosis (HS). Non-alcoholic fatty liver disease (NAFLD) is closely related to cardiovascular diseases (CVDs). CVDs are the leading cause of morbidity and mortality in hemodialysis patients. The aim of this study was to investigate the prevalence of NAFLD in hemodialysis patients. METHOD: We prospectively enrolled patients undergoing chronic hemodialysis, as well as patients with normal renal function who served as controls...
2017: PloS One
https://www.readbyqxmd.com/read/28426695/a-comparative-study-of-pediatric-open-pyeloplasty-laparoscopy-assisted-extracorporeal-pyeloplasty-and-robot-assisted-laparoscopic-pyeloplasty
#14
Sang Hoon Song, Chanwoo Lee, Jaeyoon Jung, Sung Jin Kim, Sungchan Park, Hyungkeun Park, Kun Suk Kim
PURPOSE: To compare the outcomes of open pyeloplasty (OP), laparoscopy-assisted extracorporeal (LEXP), and robotic-assisted laparoscopic pyeloplasty (RALP) for ureteropelvic junction obstruction in pediatric patients. METHODS: We retrospectively reviewed the age-matched cohort of 30 children who underwent OP, 30 who underwent LEXP, and 10 who underwent RALP at a single institution, from 1996 to 2014. Pre- and post-operative variables including success rate were compared among surgical groups...
2017: PloS One
https://www.readbyqxmd.com/read/28422037/ureteral-meatotomy-as-an-option-in-the-management-of-primary-obstructive-megaureter-in-neonates-and-infants
#15
Priscila Cardoso Braz, Fernanda Ghilardi Leão, Jovelino Quintino de Souza Leão, Luciano Silveira Onofre, Giselle Machado Campos de Oliveira, José Carnevale, Carlos Miguélez Lago
Differentiating between the cases of megaureter that require surgery and the ones in whom treatment can be delayed is challenging. A large number of surgical techniques for the treatment of POM been proposed aiming mainly to reduce renal damage by relieving the affected ureter. Resection of the affected ureteral segment followed by vesicoureteral reimplantation either with or without reduction ureteroplasty is the classic treatment, however posing a high rate of complications when performed in patients aged less than one year...
April 2017: Archivos Españoles de Urología
https://www.readbyqxmd.com/read/28420029/interlobar-artery-resistive-index-predicts-acute-on-chronic-liver-failure-syndrome-in-cirrhotic-patients-with%C3%A2-acute-decompensation
#16
Pablo A Solís-Muñoz, Christopher Willars, Julia Wendon, George Auzinger, Michael A Heneghan, Maria De la Flor-Robledo, José A Solís-Herruzo
Introduction Patients with acutely decompensated (AD) cirrhosis are at risk for developing acute-on-chronic liver failure (ACLF) syndrome. This syndrome is associated with a high short-term mortality rate. The aim of our study was to identify reliable early predictors of developing ACLF in cirrhotic patients with AD. Patients and Methods We assessed 84 cirrhotic patients admitted for AD without ACLF on admission. We performed routine blood testing and detailed ultrasound Doppler studies of systemic arteries and mayor abdominal veins and arteries...
April 18, 2017: Ultraschall in der Medizin
https://www.readbyqxmd.com/read/28419771/aspects-of-carotid-structure-and-function-in-health-and-different-stages-of-chronic-kidney-disease
#17
Anna M Asp, Carin Wallquist, Anette Rickenlund, Britta Hylander, Stefan H Jacobson, Kenneth Caidahl, Maria J Eriksson
INTRODUCTION: Arterial remodelling and stiffening have been demonstrated in end-stage renal disease (ESRD). The presence of vascular alterations in earlier-stage chronic kidney disease (CKD) is less studied. We evaluated vascular structure and function in mild-to-moderate CKD (stages 2-3) compared with healthy subjects and advanced CKD (stages 4-5). METHODS: Carotid ultrasound was performed in 103 non-dialysis CKD patients and 54 healthy controls. Carotid intima-media thickness (CIMT) and common carotid artery (CCA) diameter were measured...
April 16, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28419667/a-simple-risk-score-for-prediction-of-hemorrhagic-complications-after-a-percutaneous-renal-biopsy
#18
Juan M Mejía-Vilet, Manuel A Márquez-Martínez, Bertha M Cordova-Sanchez, Mónica Chapa Ibargüengoitia, Ricardo Correa-Rotter, Luis E Morales-Buenrostro
AIM: To derive a simple risk score to predict the individual risk of major complications for patients undergoing a percutaneous renal biopsy procedure of native kidneys. METHODS: The risk score was derived from a cohort of 1,205 adult patients subject to percutaneous renal biopsy and assigned to training and validation datasets. Factors associated with major complications were derived from univariate analysis and then modeled by stepwise multivariate logistic regression...
April 16, 2017: Nephrology
https://www.readbyqxmd.com/read/28418995/kidney-biopsy-yield-an-examination-of-influencing-factors
#19
Miroslav Sekulic, Gretchen S Crary
Kidney biopsies are conducted under varying scenarios, presenting variables that could potentially influence yield and adequacy of tissue collected. We retrospectively reviewed 636 native and allograft kidney biopsies, and compared tissue collected between differing practitioners performing the biopsy (nephrologists or radiologists), imaging modalities for guidance (ultrasound or computed tomography), gauge needle used (18 or 16 G), and between on-site evaluators of biopsy adequacy conducted at the time of biopsy (general pathologists, renal pathologists, nephrologists)...
April 17, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28418451/cost-effectiveness-of-common-diagnostic-approaches-for-evaluation-of-asymptomatic-microscopic-hematuria
#20
Joshua A Halpern, Bilal Chughtai, Hassan Ghomrawi
Importance: Asymptomatic microscopic hematuria (AMH) is highly prevalent and may signal occult genitourinary (GU) malignant abnormality. Common diagnostic approaches differ in their costs and effectiveness in detecting cancer. Given the low prevalence of GU malignant abnormality among patients with AMH, it is important to quantify the cost implications of detecting cancer for each approach. Objective: To estimate the effectiveness, costs, and incremental cost per cancer detected (ICCD) for 4 common diagnostic approaches evaluating AMH...
April 17, 2017: JAMA Internal Medicine
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