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Renal artery stenosis

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https://www.readbyqxmd.com/read/29784504/balloon-angioplasty-of-renal-artery-stenosis-due-to-takayasu-arteritis-in-a-2-year-old-child
#1
Alimujiang Abudoureyimu, Xingwei He, Jiangtao Yan, Chang Xu, Liru Qiu, Hesong Zeng
The aim of this report is to demonstrate a 2-year-2-month-old child who presented with a history of malignant hypertension. He was made the diagnosis of Takayasu arteritis by laboratory tests and angiography; we initiated a treatment with sequential balloon predilation. The patient's blood pressure improved dramatically, and patency of renal artery was demonstrated with renal arteriography over 8 months after the balloon predilation.
April 25, 2018: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/29780893/have-you-seen-sam
#2
S Fleming, R Tang, J Ferguson, R Kwok, S Jansen
Introduction: Segmental arterial mediolysis (SAM) is a rare, non-atherosclerotic, non-inflammatory vascular disease mostly affecting medium to large sized abdominal arteries which may cause aneurysms, stenosis, and haemorrhage. Report: A case is reported of a patient with SAM affecting the renal arteries bilaterally, where the diagnosis was made by excluding other inflammatory, immunological, and infectious mimickers. Discussion: As SAM carries a significant mortality and morbidity from end organ ischaemia, infarction, or haemorrhage, it should be considered in any patient presenting with abdominal pain...
2018: EJVES Short Reports
https://www.readbyqxmd.com/read/29778671/international-study-of-comparative-health-effectiveness-with-medical-and-invasive-approaches-ischemia-trial-rationale-and-design
#3
David J Maron, Judith S Hochman, Sean M O'Brien, Harmony R Reynolds, William E Boden, Gregg W Stone, Sripal Bangalore, John A Spertus, Daniel B Mark, Karen P Alexander, Leslee Shaw, Jeffrey S Berger, T Bruce Ferguson, David O Williams, Robert A Harrington, Yves Rosenberg
BACKGROUND: Prior trials comparing a strategy of optimal medical therapy with or without revascularization have not shown that revascularization reduces cardiovascular events in patients with stable ischemic heart disease (SIHD). However, those trials only included participants in whom coronary anatomy was known prior to randomization and did not include sufficient numbers of participants with significant ischemia. It remains unknown whether a routine invasive approach offers incremental value over a conservative approach with catheterization reserved for failure of medical therapy in patients with moderate or severe ischemia...
April 21, 2018: American Heart Journal
https://www.readbyqxmd.com/read/29760312/change-in-cerebral-blood-flow-after-palliative-percutaneous-angioplasty-and-timing-of-second-stage-carotid-artery-stenting-in-staged-angioplasty
#4
Hisashi Nagashima, Kazuhiro Hongo, Alhusain Nagm
The purpose of this study is to elucidate the hemodynamic changes after palliative angioplasty and the timing of second stage carotid artery stenting (CAS) in staged angioplasty for patients with severe hemodynamically compromised carotid artery stenosis. Among consecutive 111 patients with carotid artery stenosis, chronological changes in the cerebral blood flow of all 11 hemodynamically compromised patients treated with CAS were evaluated with single photon emission computed tomogram (SPECT) in each stage of the treatment...
May 11, 2018: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/29756199/borderline-bilateral-renal-artery-stenosis-assessed-with-high-resolution-angiography-intravascular-ultrasound-and-renal-fractional-flow-reserve-in-a-patient-with-renovascular-hypertension
#5
Kamil Zieliński, Łukasz Kalińczuk, Jacek Kądziela, Adam Witkowski
No abstract text is available yet for this article.
2018: Kardiologia Polska
https://www.readbyqxmd.com/read/29754726/-doppler-ultrasonography-of-the-renal-artery-guidelines-and-predictive-factors-for-the-presence-of-a-tight-stenosis-retrospective-analysis-of-450-consecutive-examinations
#6
C Dejerome, C Grange, L De Laforcade, O Bonin, M Laville, P Lermusiaux, A Long
Duplex ultrasonography screening for renal artery stenosis has been the object of guidelines published by four societies designed to optimize the cost-effectiveness of the examination. OBJECTIVES: To determine how well guideline indications for ultrasonography matched with requests and results in our university hospital; to determine whether compliance with guidelines was predictive of renal artery stenosis; to identify guidelines predictive of presence of stenosis; and to determine whether other predictive factors can be recognized...
May 2018: Journal de Médecine Vasculaire
https://www.readbyqxmd.com/read/29743023/three-years-outcomes-of-diabetic-patients-treated-with-coronary-bioresorbable-scaffolds
#7
Remzi Anadol, Katharina Schnitzler, Liv Lorenz, Melissa Weissner, Helen Ullrich, Alberto Polimeni, Thomas Münzel, Tommaso Gori
BACKGROUND: Diabetes is among the strongest predictors of outcome after coronary artery stenting and the incidence of negative outcomes is still high in this specific group. Data of long-term outcomes comparing diabetic patients with non-diabetic patients treated with bioresorbable scaffolds are still incomplete. This work evaluates the long-term outcomes after implantation of a coronary bioresorbable scaffold (BRS) in diabetic patients compared to non-diabetics. METHODS: Patients who received at least one Absorb BRS in the time of May 2012 to December 2014 were enrolled into this single-center registry...
May 10, 2018: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29742686/a-rare-case-report-of-one-stage-surgical-treatment-for-left-renal-cell-carcinoma-with-level-iv-intravenous-tumor-thrombus-combined-with-severe-coronary-artery-stenosis
#8
Zhenqing Wang, Keqin Zhang, Hui Zhang, Dingqi Sun, Yong Li, Qi Tan, Qiang Fu
RATIONALE: Renal cell carcinoma (RCC) exhibits a natural tendency to extend from the kidney into inferior vena cava (IVC) and growing into the right atrium is a rare complication. We report a 65-year-old patient with an RCC with intravascular extension through renal vein into the IVC and right atrial combined with severe coronary artery disease. This case has not been described in the literature and there is no treatment guideline for it. PATIENT CONCERNS: A 65-year-old patient was admitted to our clinic with complaints of edema of both lower extremities...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29737481/a-case-of-ischemic-gastroduodenal-disease-in-a-patient-who-was-receiving-hemodialysis-treatment-that-was-managed-by-conservative-treatment
#9
Ko Tomishima, Sho Sato, Nozomi Amano, Ayato Murata, Hironori Tsuzura, Shunsuke Sato, Yoshio Kanemitsu, Yuji Shimada, Katsuyori Iijima, Takuya Genda, Ryo Wada, Akihito Nagahara
A 69-year-old man was under maintenance dialysis due to diabetic renal failure. He had a drop in blood pressure during dialysis, developed hematemesis, and was transported to our hospital. Emergency upper gastrointestinal endoscopy revealed diffuse erosion, mucosal sloughing, and edematous mucosa in the upper body of the stomach to the posterior wall of the antrum and to the greater curvature, which were considered to be an ischemic change. His underlying diseases included diabetic renal failure, chronic arteriosclerosis obliterans, cerebral infarction, internal carotid artery stenosis, hypertension, and myocardial infarction...
May 8, 2018: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/29730854/renal-involvement-in-antiphospholipid-syndrome
#10
REVIEW
Francisco Vileimar Andrade de Azevedo, Diego Germano Maia, Jozelio Freire de Carvalho, Carlos Ewerton Maia Rodrigues
This is a review of scientific publications on renal involvement in antiphospholipid syndrome (APS), with focus on clinical and histopathological findings and treatment. A search for English-language articles on renal involvement in APS covering the period 1980-2017 was conducted in Medline/PubMed and Scopus databases using the MeSH terms "antiphospholipid syndrome", "antiphospholipid antibodies", "glomerulonephritis" and "thrombotic microangiopathy" (TMA). APS nephropathy is primarily the result of thromboses in renal arteries or veins, intraparenchymatous arteries and glomerular capillaries...
May 5, 2018: Rheumatology International
https://www.readbyqxmd.com/read/29730345/hemiarch-reconstruction-vs-clamped-aortic-anastomosis-for-concomitant-ascending-aortic-aneurysm
#11
Ibrahim Sultan, Valentino Bianco, Ibrahim Yajzi, Arman Kilic, Keith Dufendach, Arturo Cardounel, Andrew D Althouse, Ahmad Masri, Forozan Navid, Thomas G Gleason
BACKGROUND: Deep hypothermic circulatory arrest (DHCA) is often avoided in patients with concomitant ascending aortic pathology when treating other cardiac disease to avoid increased risk of morbidity and mortality. We hypothesized that the use of DHCA with retrograde cerebral perfusion (RCP) does not add incremental risk to ascending aortic replacement alone in the setting of concomitant cardiac surgery. METHODS: 408 ascending aortic ± hemiarch replacements and aortic (root)/mitral/tricuspid valve(s), CABG, or MAZE procedures were performed for concomitant cardiac disease...
May 3, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29727402/targeted-imaging-of-renal-fibrosis-using-antibody-conjugated-gold-nanoparticles-in-renal-artery-stenosis
#12
Xiang-Yang Zhu, Xiangyu Zou, Rahul Mukherjee, Zhicong Yu, Christopher M Ferguson, Wei Zhou, Cynthia H McCollough, Lilach O Lerman
OBJECTIVES: The ability to determine the severity of renal fibrosis, which is involved in most chronic kidney diseases, may be beneficial for monitoring disease progression and management. The aim of this study was to assess a new method involving gold nanoparticles conjugated to an anti-collagen-I antibody (Co-I-AuNPs) as a computed tomography (CT) imaging contrast for the evaluation of renal fibrosis in situ. MATERIALS AND METHODS: Gold nanoparticles conjugated to an anti-collagen-I antibody were prepared using gold chloride reduction with sodium citrate and coated with polyethylene glycol (PEG), and their size was determined by electron microscopy and nanoparticle tracking analysis...
April 28, 2018: Investigative Radiology
https://www.readbyqxmd.com/read/29709926/a-unique-case-of-renovascular-hypertension-due-to-fibromuscular-dysplasia-in-an-extra-renal-artery
#13
Ikki Sakuma, Jun Saito, Yoko Matsuzawa, Masao Omura, Seiji Matsui, Tetsuo Nishikawa
A 33-year-old man was admitted to our hospital to undergo an evaluation to determine the cause of secondary hypertension. Computerized tomography angiography (CTA) showed bilateral multiple renal arteries with significant stenosis of the right extra-renal artery due to fibromuscular dysplasia and segmental impairment of renal perfusion. Although the plasma aldosterone concentration and plasma renin activity were within the normal ranges, percutaneous balloon dilatation of the stenotic lesion resolved his hypertension, leading to a diagnosis of renovascular hypertension caused by segmental renal ischemia due to extra-renal artery stenosis...
April 27, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29701389/coronary-allograft-vasculopathy-after-cardiac-transplantation-prevalence-prognostic-and-risk-factors
#14
André Antunes, David Prieto, Carlos Pinto, Carlos Branco, Pedro Correia, Manuel Batista, Manuel Antunes
INTRODUCTION: Coronary allograft vasculopathy (CAV) is still a serious long-term complication after cardiac transplantation. PURPOSE: To evaluate the prevalence of CAV in a single institution, its impact on survival and to explore associated risk factors. METHODS: From November-2003 through June-2016, 316 patients were submitted to cardiac transplantation. After excluding those with paediatric age (n=8), those with previous renal or hepatic transplantation (n=2) and those who didn't survive the first year after cardiac transplantation (n=40), the study population resulted in 266 patients...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29701366/cardiac-surgery-with-synchronous-carotid-angioplasty-our-experience
#15
Carlos Pinto, Marco Costa, Hilario Oliveira, Manuel Antunes
INTRODUCTION: The identification of carotid stenosis in patients proposed for coronary artery bypass grafting, proves that atherosclerosis is a systemic disease. In patients with carotid disease and in need of cardiac surgery, there are still questions about the best method of treatment - medical, surgical or percutaneous, the degree of stenosis considered for intervention and the best time for treatment (pre, peri or postoperative heart surgery). The surgical treatment of the carotid stenosis is currently the gold standard...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29700591/the-role-of-mr-imaging-in-the-assessment-of-renal-allograft-vasculature
#16
REVIEW
Raj Gondalia, Federica Vernuccio, Daniele Marin, Mustafa R Bashir
Renal allograft dysfunction after transplantation is a relatively common occurrence with various potential etiologies. Vascular etiologies are of particular importance as early surgical or minimally invasive intervention can, in some cases, salvage the graft. Diagnosis of vascular pathology resulting in allograft dysfunction requires a thorough workup, of which imaging is a key component. Generally, ultrasound is the first-line imaging modality. More recently, MRI has been shown to be an effective and safe modality for diagnosis of vascular pathology after renal transplantation, particularly for diagnosis of transplant renal artery stenosis...
April 26, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29693449/a-translational-model-of-chronic-kidney-disease-in-swine
#17
Alejandro R Chade, Maxx L Williams, Jason E Engel, Erika Guise, Taylor W Harvey
Animal models of chronic kidney disease (CKD) are critical for understanding its pathophysiology and for therapeutic development. The cardiovascular and renal anatomy and physiology of the pig are virtually identical to humans. This study aimed to develop a novel translational model of CKD that mimics the pathological features of CKD in humans. CKD was induced in 7 domestic pigs by bilateral renal artery stenosis and diet-induced dyslipidemia. Animals were observed for a total of 14 weeks. Renal hemodynamics and function were quantified in vivo using multi-detector CT after 6, 10, and 14 weeks of CKD...
April 25, 2018: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/29687696/long-term-prognostic-impact-of-non-invasive-follow-up-with-computed-tomography-angiography-in-patients-with-left-main-coronary-artery-stenting
#18
Gerard Roura, Josep Gomez-Lara, Lara Fuentes Castillo, Josè L Ferreiro, Rafael Romaguera, Luis Teruel, Montserrat Gracida Blancas, Elena Carreño, Joan A Gomez-Hospital, Angel Cequier
BACKGROUND: Left main coronary artery (LMCA) stenting is an evolving technique. Whether follow-up computed tomography angiography (CTA) might have clinical impact in these patients is controversial. The aim of present study is to compare clinical outcomes of patients with LMCA stenting followed with CTA versus patients with conventional clinical follow-up. METHODS: From 2003 to 2014 all consecutive patients with unprotected LMCA stenosis treated with single DES implantation were prospectively included...
April 20, 2018: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/29682104/predictors-of-perioperative-stroke-death-after-carotid-artery-stenting-a-review-article
#19
REVIEW
Ali F AbuRahma
Carotid artery stenting (CAS) has been recommended as an alternative treatment to carotid endarterectomy for patients with significant carotid stenosis. Only a few studies have analyzed clinical/anatomical and technical variables that affect perioperative outcomes of CAS. Following a comprehensive Medline search, it was reported that clinical factors, including age of >80 years, chronic renal failure, diabetes mellitus, symptomatic indications, and procedures performed within 2 weeks of transient ischemic attack symptoms, are associated with high perioperative stroke and death rates...
March 25, 2018: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/29666993/non-contrast-enhanced-magnetic-resonance-angiography-a-reliable-clinical-tool-for-evaluating-transplant-renal-artery-stenosis
#20
Long Jiang Zhang, Jin Peng, Jiqiu Wen, U Joseph Schoepf, Akos Varga-Szemes, L Parkwood Griffith, Yuan Meng Yu, Shu Min Tao, Yan Jun Li, Xue Feng Ni, Jian Xu, Dong Hong Shi, Guang Ming Lu
PURPOSE: To evaluate image quality of non-contrast-enhanced magnetic resonance angiography (MRA) and compare transplant renal artery stenosis (TRAS) seen by non-contrast-enhanced MRA with digital subtraction angiography (DSA) as the gold standard. MATERIALS AND METHODS: 330 patients receiving 369 non-contrast-enhanced MRA examinations from July 2014 to June 2017 were included. Thirty patients received at least two MRA examinations. Image quality was independently assessed by two radiologists...
April 17, 2018: European Radiology
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