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Cardiovascular resonance

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https://www.readbyqxmd.com/read/28726262/double-aortic-arch-anomalies-in-children-a-systematic-20-year-single-center-study
#1
M Kaldararova, I Simkova, I Varga, P Tittel, M Kardos, M Ondriska, V Vrsanska, J Masura
INTRODUCTION: Aortic arch anomalies underlie numerous congenital disorders. Effectively diagnosing and treating them requires close understanding of cardiovascular embryology. As our Center serves the entire pediatric population of our country, we performed a comprehensive retrospective analysis of all aortic arch anomalies diagnosed at our Center over the past 20 years. MATERIALS AND METHODS: We analyzed 40 children with aortic arch anomalies, distinguishing two defect types: Group 1 displayed ring-forming anomalies, and Group 2 other types of aortic arch anomalies that did not form a vascular ring...
July 20, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28724650/dynamic-relation-of-changes-in-weight-and-indices-of-fat-distribution-with-cardiac-structure-and-function-the-dallas-heart-study
#2
Bryan Wilner, Sonia Garg, Colby R Ayers, Christopher D Maroules, Roderick McColl, Susan A Matulevicius, James A de Lemos, Mark H Drazner, Ronald Peshock, Ian J Neeland
BACKGROUND: Obesity may increase heart failure risk through cardiac remodeling. Cross-sectional associations between adiposity and cardiac structure and function have been elucidated, but the impact of longitudinal changes in adiposity on cardiac remodeling is less well understood. METHODS AND RESULTS: Participants in the Dallas Heart Study without cardiovascular disease or left ventricular dysfunction underwent assessment of body weight, anthropometrics, and cardiac magnetic resonance imaging at baseline and 7 years later...
July 19, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28724418/improved-recovery-of-regional-left-ventricular-function-after-pci-of-chronic-total-occlusion-in-stemi-patients-a-cardiovascular-magnetic-resonance-study-of-the-randomized-controlled-explore-trial
#3
Joëlle Elias, Ivo M van Dongen, Loes P Hoebers, Dagmar M Ouweneel, Bimmer E P M Claessen, Truls Råmunddal, Peep Laanmets, Erlend Eriksen, René J van der Schaaf, Dan Ioanes, Robin Nijveldt, Jan G Tijssen, Alexander Hirsch, José P S Henriques
BACKGROUND: The Evaluating Xience and left ventricular function in PCI on occlusiOns afteR STEMI (EXPLORE) trial did not show a significant benefit of percutaneous coronary intervention (PCI) of the concurrent chronic total occlusion (CTO) in ST-segment elevation myocardial infarction (STEMI) patients on global left ventricular (LV) systolic function. However a possible treatment effect will be most pronounced in the CTO territory. Therefore, we aimed to study the effect of CTO PCI compared to no-CTO PCI on the recovery of regional LV function, particularly in the CTO territory...
July 19, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28721548/left-atrium-passive-ejection-fraction-is-the-most-sensitive-index-of-type-2-diabetes-mellitus-related-cardiac-changes
#4
Yongning Shang, Xiaochun Zhang, Weiling Leng, Xiaotian Lei, Liu Chen, Ziwen Liang, Jian Wang
The aims of this study were to use cardiovascular magnetic resonance (CMR) cine to assess left atrium (LA) and left ventricle (LV) function and structure in normotensive type 2 diabetes mellitus (T2DM) patients and to identify the most sensitive index of those T2DM-related cardiac changes. Fifty T2DM patients with normotension (25 males, age 54.7 ± 8.7 years, duration of diabetes: 7.5 ± 5.1 years) and 35 controls (16 males, age: 52.2 ± 13.2 years) were prospectively enrolled. All patients were scanned using CMR four- and two-chamber long-axis cine to assess LA and LV structure and function...
July 18, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28720429/stable-isotope-based-flux-studies-in-nonalcoholic-fatty-liver-disease
#5
REVIEW
Arthur McCullough, Stephen Previs, Takhar Kasumov
Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disease and is associated with the worldwide epidemics of obesity, diabetes and cardiovascular diseases. NAFLD ranges from benign fat accumulation in the liver (steatosis) to non-alcoholic steatohepatitis (NASH), and cirrhosis which can progress to hepatocellular carcinoma and liver failure. Mass spectrometry and magnetic resonance spectroscopy-coupled stable isotope-based flux studies provide new insights into the understanding of NAFLD pathogenesis and the disease progression...
July 15, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28720123/cardiovascular-magnetic-resonance-in-an-adult-human-population-serial-observations-from-the-multi-ethnic-study-of-atherosclerosis
#6
REVIEW
Kihei Yoneyama, Bharath A Venkatesh, David A Bluemke, Robyn L McClelland, João A C Lima
The Multi-Ethnic Study of Atherosclerosis (MESA) is the first large-scale multi-ethnic population study in the U.S. to use advanced cardiovascular magnetic resonance (CMR) imaging. MESA participants were free of cardiovascular disease at baseline between 2000 and 2002, and were followed up between 2009 and 2011 with repeated CMR examinations as part of MESA. CMR allows the clinician to visualize and accurately quantify volume and dimensions of all four cardiac chambers; measure systolic and diastolic ventricular function; assess myocardial fibrosis; assess vessel lumen size, vessel wall morphology, and vessel stiffness...
July 18, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28716801/diabetes-mellitus-microalbuminuria-and-subclinical-cardiac-disease-identification-and-monitoring-of-individuals-at-risk-of-heart-failure
#7
Peter P Swoboda, Adam K McDiarmid, Bara Erhayiem, David P Ripley, Laura E Dobson, Pankaj Garg, Tarique A Musa, Klaus K Witte, Mark T Kearney, Julian H Barth, Ramzi Ajjan, John P Greenwood, Sven Plein
BACKGROUND: Patients with type 2 diabetes mellitus and elevated urinary albumin:creatinine ratio (ACR) have increased risk of heart failure. We hypothesized this was because of cardiac tissue changes rather than silent coronary artery disease. METHODS AND RESULTS: In a case-controlled observational study 130 subjects including 50 ACR+ve diabetes mellitus patients with persistent microalbuminuria (ACR >2.5 mg/mol in males and >3.5 mg/mol in females, ≥2 measurements, no previous renin-angiotensin-aldosterone therapy, 50 ACR-ve diabetes mellitus patients and 30 controls underwent cardiovascular magnetic resonance for investigation of myocardial fibrosis, ischemia and infarction, and echocardiography...
July 17, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28716007/silent-myocarditis-in-systemic-sclerosis-detected-by-cardiovascular-magnetic-resonance-using-lake-louise-criteria
#8
Sophie Mavrogeni, Loukia Koutsogeorgopoulou, Georgia Karabela, Efthymios Stavropoulos, Gikas Katsifis, John Raftakis, Sotiris Plastiras, Michel Noutsias, George Markousis-Mavrogenis, Genovefa Kolovou
BACKGROUND: Systemic sclerosis (SSc) is an autoimmune disease characterized by microvascular abnormalities, inflammation and fibrosis. We hypothesized that myocarditis may be diagnosed in asymptomatic SSc, undergoing routine cardio-vascular magnetic resonance (CMR) for fibrosis assessment, using the Lake Louise criteria: T2 ratio, early (EGE) and late gadolinium enhanced (LGE) images. METHODS: Eighty-two asymptomatic SSc, diagnosed according to American College of Rheumatology criteria, aged 43 ± 5 yrs...
July 17, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28713255/the-impact-of-aerobic-exercise-on-fronto-parietal-network-connectivity-and-its-relation-to-mobility-an-exploratory-analysis-of-a-6-month-randomized-controlled-trial
#9
Chun L Hsu, John R Best, Shirley Wang, Michelle W Voss, Robin G Y Hsiung, Michelle Munkacsy, Winnie Cheung, Todd C Handy, Teresa Liu-Ambrose
Impaired mobility is a major concern for older adults and has significant consequences. While the widely accepted belief is that improved physical function underlies the effectiveness of targeted exercise training in improving mobility and reducing falls, recent evidence suggests cognitive and neural benefits gained through exercise may also play an important role in promoting mobility. However, the underlying neural mechanisms of this relationship are currently unclear. Thus, we hypothesize that 6 months of progressive aerobic exercise training would alter frontoparietal network (FPN) connectivity during a motor task among older adults with mild subcortical ischemic vascular cognitive impairment (SIVCI)-and exercise-induced changes in FPN connectivity would correlate with changes in mobility...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28712562/abnormal-right-atrial-performance-in-repaired-tetralogy-of-fallot-a-cmr-feature-tracking-analysis
#10
Shelby Kutty, Quanliang Shang, Navya Joseph, Johannes T Kowallick, Andreas Schuster, Michael Steinmetz, David A Danford, Phillip Beerbaum, Samir Sarikouch
BACKGROUND: We hypothesized that right atrial (RA) performance is abnormal in repaired tetralogy of Fallot (TOF). METHODS: TOF patients were prospectively enrolled for cardiovascular magnetic resonance (CMR), echocardiography and exercise stress following a standardized 14-center protocol. Peak RA longitudinal strain (RALS) and right ventricular longitudinal strain (RVLS) were measured using CMR feature tracking (FT) and correlated to RA and RV end diastolic volumes (EDVi) and ejection fraction (EF)...
July 8, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28707755/non-invasive-detection-of-myocardial-fibrosis-in-pediatric-heart-transplant-recipients-the-role-of-cardiovascular-magnetic-resonance
#11
EDITORIAL
Jonathan H Soslow, Justin Godown
No abstract text is available yet for this article.
August 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28705466/serum-folic-acid-levels-are-associated-with-the-presence-and-severity-of-liver-steatosis-in-chinese-adults
#12
Ming-Feng Xia, Hua Bian, Xiao-Peng Zhu, Hong-Mei Yan, Xin-Xia Chang, Lin-Shan Zhang, Huan-Dong Lin, Xi-Qi Hu, Xin Gao
BACKGROUND & AIMS: Non-alcoholic fatty liver disease (NAFLD) is a common and strong risk factor for cardiovascular disease and hepatocellular carcinoma. The rapid acceleration of the increase in NAFLD prevalence has exceeded the trends observed for obesity, and has been driven by multiple factors. The aim of this study was to investigate the correlation between the serum levels of folic acid, the endogenous source of methyl groups for DNA methylation, and NAFLD in Chinese adults. METHODS: The correlations between the serum folic acid levels and NAFLD were investigated in two independent cohorts of 70 subjects who underwent a liver biopsy and 130 subjects with varying liver fat contents, as measured using proton magnetic resonance spectroscopy ((1)H-MRS)...
June 28, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28705053/cardiac-amyloidosis-pathogenesis-clinical-context-diagnosis-and-management-options
#13
Hassan Alkhawam, Darshan Patel, James Nguyen, Saumya Mariam Easaw, Mohammed Al-Sadawi, Umer Syed, Feras Zaiem, Maher Homsi, Timothy J Vittorio
Amyloidosis covers a group of disorders that can manifest in virtually any organ system in the body and is thought to be secondary to misfolding of extracellular proteins with subsequent deposition in tissues. The precursor protein that is produced in excess defines the specific amyloid type. This requires histopathological confirmation using Congo-red dye with its characteristic demonstration of green birefringence under cross-polarized light. There are three main types of amyloidosis associated with cardiac involvement: light-chain (AL), familial or senile (ATTR), and secondary (AA) amyloidosis...
July 14, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28704533/peripheral-blood-mitochondrial-dna-content-in-relation-to-circulating-metabolites-and-inflammatory-markers-a-population-study
#14
Judita Knez, Vannina G Marrachelli, Nicholas Cauwenberghs, Ellen Winckelmans, Zhenyu Zhang, Lutgarde Thijs, Jana Brguljan-Hitij, Michelle Plusquin, Christian Delles, Daniel Monleon, Josep Redón, Jan A Staessen, Tim S Nawrot, Tatiana Kuznetsova
Mitochondrial DNA (mtDNA) content might undergo significant changes caused by metabolic derangements, oxidative stress and inflammation that lead to development and progression of cardiovascular diseases. We, therefore, investigated in a general population the association of peripheral blood mtDNA content with circulating metabolites and inflammatory markers. We examined 310 subjects (50.6% women; mean age, 53.3 years) randomly selected from a Flemish population. Relative mtDNA content was measured by quantitative real-time PCR in peripheral blood cells...
2017: PloS One
https://www.readbyqxmd.com/read/28704465/lipoprotein-a-in-patients-with-aortic-stenosis-insights-from-cardiovascular-magnetic-resonance
#15
Vassilios S Vassiliou, Paul D Flynn, Claire E Raphael, Simon Newsome, Tina Khan, Aamir Ali, Brian Halliday, Annina Studer Bruengger, Tamir Malley, Pranev Sharma, Subothini Selvendran, Nikhil Aggarwal, Anita Sri, Helen Berry, Jackie Donovan, Willis Lam, Dominique Auger, Stuart A Cook, Dudley J Pennell, Sanjay K Prasad
BACKGROUND: Aortic stenosis is the most common age-related valvular pathology. Patients with aortic stenosis and myocardial fibrosis have worse outcome but the underlying mechanism is unclear. Lipoprotein(a) is associated with adverse cardiovascular risk and is elevated in patients with aortic stenosis. Although mechanistic pathways could link Lipoprotein(a) with myocardial fibrosis, whether the two are related has not been previously explored. In this study, we investigated whether elevated Lipoprotein(a) was associated with the presence of myocardial replacement fibrosis...
2017: PloS One
https://www.readbyqxmd.com/read/28696268/personalizing-risk-stratification-for-sudden-death-in-dilated-cardiomyopathy-the-past-present-and-future
#16
REVIEW
Brian P Halliday, John G F Cleland, Jeffrey J Goldberger, Sanjay K Prasad
Results from the DANISH Study (Danish Study to Assess the Efficacy of ICDs in Patients With Non-Ischemic Systolic Heat Failure on Mortality) suggest that for many patients with dilated cardiomyopathy (DCM), implantable cardioverter-defibrillators do not increase longevity. Accurate identification of patients who are more likely to die of an arrhythmia and less likely to die of other causes is required to ensure improvement in outcomes and wise use of resources. Until now, left ventricular ejection fraction has been used as a key criterion for selecting patients with DCM for an implantable cardioverter-defibrillator for primary prevention purposes...
July 11, 2017: Circulation
https://www.readbyqxmd.com/read/28694111/the-pathophysiology-of-watershed-infarction-a-three-dimensional-time-of-flight-magnetic-resonance-angiography-study
#17
Caroline Weill, Laurent Suissa, Jacques Darcourt, Marie-Hélène Mahagne
BACKGROUND: Most of the time, watershed infarcts (WIs) involve steno-occlusive carotid disease. The pathophysiological mechanism could be predicted by their pattern: internal WIs (IWIs) are thought to be due to hemodynamic impairment in contrast to cortical WIs (CWIs), which are more likely to be caused by microembolic phenomena. We used a 3D time-of-flight (TOF) magnetic resonance angiography (MRA) study to assess this hypothesis. METHODS: In 45 consecutive patients with a recent WI and ipsilateral cervical carotid stenosis, clinical and radiological data were obtained retrospectively...
July 7, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28692957/passive-wearable-skin-patch-sensor-measures-limb-hemodynamics-based-on-electromagnetic-resonance
#18
Kim Cluff, Ryan A Becker, Balakumar Jayakumar, Kiyun Han, Ernie Condon, Kenneth Dudley, George Szatkowski, Iraklis I Pipinos, Ryan Z Amick, Jeremy Patterson
OBJECTIVE: The objectives of this study were to design and develop an open circuit electromagnetic resonant skin patch sensor, characterize the fluid volume and resonant frequency relationship and investigate the sensor's ability to measure limb hemodynamics and pulse volume waveform features. METHODS: The skin patch was designed from an open circuit electromagnetic resonant sensor comprised of a single baseline trace of copper configured into a square planar spiral which had a self-resonating response when excited by an external radio frequency (RF) sweep...
July 4, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28692525/effect-of-adjuvant-chemotherapy-on-left-ventricular-remodeling-in-women-with-newly-diagnosed-primary-breast-cancer-a-pilot-prospective-longitudinal-cardiac-magnetic-resonance-imaging-study
#19
Erick Avelar, Quynh A Truong, David Inyangetor, Ravi Marfatia, Clifford Yang, Electra Kaloudis, Susan Tannenbaum, Guido Rosito, Sheldon Litwin
PURPOSE: The aim of this study was to assess the left ventricular (LV) remodeling response to chemotherapy in low-cardiac-risk women with newly diagnosed nonmetastatic breast cancer. Cardiotoxic effects of chemotherapy are an increasing concern. To effectively interpret cardiac imaging studies performed for screening purposes in patients undergoing cancer therapy it is necessary to understand the normal changes in structure and function that may occur. METHODS: Twenty women without preexisting cardiovascular disease, of a mean age of 50 years, newly diagnosed with nonmetastatic breast cancer and treated with anthracycline or trastuzumab were prospectively enrolled and evaluated at four time points (at baseline, during chemotherapy, 2 weeks after chemotherapy, and 6 months after chemotherapy) using cardiac magnetic resonance imaging, blood samples, and a clinical questionnaire...
July 7, 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28690953/venous-diversion-surgery-revisited-a-baffling-situation
#20
Jessica R Klassen, Davinder S Jassal, Brett Memauri, Malek Kass, James W Tam, Jonathan Windram, David Ross, Nasir Shaikh
With the increasing number of survivors with congenital heart disease (CHD) reaching adulthood, it is important for the clinician to be familiar with the various surgical options performed in this growing patient population. We describe the case of a 65-year-old female who presented with hypoxia and right-to-left shunting following a surgical repair of an atrial septal defect (ASD) secundum and anomalous pulmonary veins with a partial atrial diversion procedure in childhood. The use of multimodality cardiovascular imaging using echocardiography, computed tomography, magnetic resonance imaging, and invasive cardiac catheterization was complementary in the preoperative diagnosis and management of this unique baffling situation...
June 6, 2017: Curēus
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