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"Cardiac magnetic resonance"

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https://www.readbyqxmd.com/read/29166721/-a-preliminary-study-on-the-relationship-between-idiopathic-arrhythmia-and-cardiac-magnetic-resonance-imaging-defined-cardiac-features-in-patients-with-straight-back-syndrome
#1
L Chen, X H Ma, L Zhao, R Bai, S N Li, L Wang, H Chen, Z M Fan, M W Lou, Y D Niu
Objective: To retrospectively analyze the potential correlation between cardiac magnetic resonance (CMR) imaging and clinical features and idiopathic arrhythmia in patients with straight back syndrome (SBS). Methods: Patients receiving CMR imaging examination from April 2015 to March 2016 at our department (n=1 432) were screened, 76 patients met the diagnosis criteria of flat chest (anteroposterior diameter/transthoracic diameter (APD/TTD) ratio<0.37 at the T8 vertebra). After excluding 33 patients with structural heart disease, 43 SBS patients were divided into two groups: SBS without obvious morphological change in the heart (group A, n=19) and SBS with morphological change of the heart (group B, n=24)...
November 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29166391/early-kinetics-of-serum-interleukine-17a-and-infarct-size-in-patients-with-reperfused-acute-st-elevated-myocardial-infarction
#2
Thomas Bochaton, Nathan Mewton, NDieme Thiam, Fabien Lavocat, Delphine Baetz, Nathalie Dufay, Cyril Prieur, Eric Bonnefoy-Cudraz, Pierre Miossec, Michel Ovize
BACKGROUND: Recently, it was shown that interleukin-17A (IL-17A) is involved in the pathophysiology of reperfusion injury and associated with infarct size (IS) in experimental models of myocardial infarction. Our aim was to evaluate whether the IL-17A serum level and the IL-17A active fraction was correlated with IS in humans. METHODS: 101 patients presenting with a ST-elevated Myocardial Infarction (STEMI) referred for primary percutaneous coronary intervention (PPCI) and 10 healthy controls were included...
2017: PloS One
https://www.readbyqxmd.com/read/29165554/the-effect-of-1-5%C3%A2-t-cardiac-magnetic-resonance-on-human-circulating-leucocytes
#3
William R Critchley, Anna Reid, Julie Morris, Josephine H Naish, John P Stone, Alexandra L Ball, Triin Major, David Clark, Nick Waldron, Christien Fortune, Jakub Lagan, Gavin A Lewis, Mark Ainslie, Erik B Schelbert, Daniel M Davis, Matthias Schmitt, James E Fildes, Christopher A Miller
Aims: Investigators have proposed that cardiovascular magnetic resonance (CMR) should have restrictions similar to those of ionizing imaging techniques. We aimed to investigate the acute effect of 1.5 T CMR on leucocyte DNA integrity, cell counts, and function in vitro, and in a large cohort of patients in vivo. Methods and results: In vitro study: peripheral blood mononuclear cells (PBMCs) were isolated from healthy volunteers, and histone H2AX phosphorylation (γ-H2AX) expression, leucocyte counts, and functional parameters were quantified using flow cytometry under the following conditions: (i) immediately following PBMC isolation, (ii) after standing on the benchside as a temperature and time control, (iii) after a standard CMR scan...
November 18, 2017: European Heart Journal
https://www.readbyqxmd.com/read/29164584/cardiac-magnetic-resonance-in-systemic-sclerosis-patients-with-cardiac-symptoms
#4
A Meduri, D V Di Molfetta, L Natale, R Manfredi
OBJECTIVE: Systemic sclerosis (SSc) is characterized by widespread vascular lesions and skin and internal organs fibrosis, including the heart; all cardiac layers, endocardium, myocardium, and pericardium, may be involved. We report the relevance of cardiac MRI findings in scleroderma patients with cardiac symptoms. PATIENTS AND METHODS: 50 patients, all fulfilling the ACR SSc criteria (19 with limited and 31 with diffused skin involvement) were evaluated using a 1...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29158437/cardiac-magnetic-resonance-imaging-in-myocarditis-reveals-persistent-disease-activity-despite-normalization-of-cardiac-enzymes-and-inflammatory-parameters-at-3-month-follow-up
#5
Jan Berg, Jan Kottwitz, Nora Baltensperger, Christine K Kissel, Marina Lovrinovic, Tarun Mehra, Frank Scherff, Christian Schmied, Christian Templin, Thomas F Lüscher, Bettina Heidecker, Robert Manka
BACKGROUND: There is a major unmet need to identify high-risk patients in myocarditis. Although decreasing cardiac and inflammatory markers are commonly interpreted as resolving myocarditis, this assumption has not been confirmed as of today. We sought to evaluate whether routine laboratory parameters at diagnosis predict dynamic of late gadolinium enhancement (LGE) as persistent LGE has been shown to be a risk marker in myocarditis. METHODS AND RESULTS: Myocarditis was diagnosed based on clinical presentation, high-sensitivity troponin T, and cardiac magnetic resonance imaging, after exclusion of obstructive coronary artery disease by angiography...
November 2017: Circulation. Heart Failure
https://www.readbyqxmd.com/read/29154434/right-ventricular-involvement-in-cardiac-sarcoidosis-demonstrated-with-cardiac-magnetic-resonance
#6
Jan-Peter Smedema, Robert-Jan van Geuns, Gillian Ainslie, Joris Ector, Hein Heidbuchel, Harry J G M Crijns
AIMS: Cardiac involvement in sarcoidosis is reported in up to 30% of patients. Left ventricular involvement demonstrated by contrast-enhanced cardiac magnetic resonance has been well validated. We sought to determine the prevalence and distribution of right ventricular late gadolinium enhancement in patients diagnosed with pulmonary sarcoidosis. METHODS AND RESULTS: We prospectively evaluated 87 patients diagnosed with pulmonary sarcoidosis with contrast-enhanced cardiac magnetic resonance for right ventricular involvement...
November 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/29154430/lower-than-expected-burden-of-premature-ventricular-contractions-impairs-myocardial-function
#7
Øyvind H Lie, Jørg Saberniak, Lars A Dejgaard, Mathis K Stokke, Finn Hegbom, Ole-Gunnar Anfinsen, Thor Edvardsen, Kristina H Haugaa
AIMS: We aimed to explore the burden of frequent premature ventricular contractions (PVCs) associated with myocardial dysfunction in patients with outflow tract arrhythmia (OTA). We hypothesized that this threshold is lower than the previously suggested threshold of 24 000 PVCs/24 h (24%PVC) when systolic function is assessed by strain echocardiography. Furthermore, we aimed to characterize OTA patients with malignant arrhythmic events. METHODS AND RESULTS: We included 52 patients referred for OTA ablation (46 ± 12 years, 58% female)...
November 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/29154426/microvascular-dysfunction-and-cardiac-fibrosis-in-heart-failure-with-preserved-ejection-fraction-a-case-report
#8
Nikhil Narang, Diego Medvedofsky, Kathryn Dryer, Sanjiv J Shah, Charles J Davidson, Amit R Patel, John E A Blair
We report the case of a 55-year-old woman with heart failure with preserved ejection fraction (HFpEF), who presented with hypertensive urgency and pulmonary oedema. The patient was medically optimized and underwent cardiac catheterization revealing pulmonary hypertension, elevated pulmonary capillary wedge pressure, normal cardiac index, and non-obstructive coronary disease. Invasive evaluation of coronary flow revealed blunted coronary flow reserve and increased index of microvascular resistance. Cardiac magnetic resonance imaging demonstrated reduced global myocardial perfusion and diffuse interstitial fibrosis...
November 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/29154424/acute-fulminant-necrotizing-eosinophilic-myocarditis-early-diagnosis-and-treatment
#9
Paul David Callan, Aigul Baltabaeva, Mohammed Kamal, Joyce Wong, Rebecca Lane, Jan Lukas Robertus, Nicholas R Banner
Necrotizing eosinophilic myocarditis is a rare but potentially fatal condition that requires prompt recognition and treatment. We describe a case of a young athlete presenting with chest pain and breathlessness, with evidence of rapidly deteriorating cardiac function. The condition was successfully treated with corticosteroids, with no evidence of residual myocardial damage. This is the first reported case to demonstrate the utility of cardiac magnetic resonance imaging for diagnosis and monitoring response to treatment...
November 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/29153657/cardiac-magnetic-resonance-imaging-in-myocardial-inflammation-in-autoimmune-rheumatic-diseases-an-appraisal-of-the-diagnostic-strengths-and-limitations-of-the-lake-louise-criteria
#10
Sophie Mavrogeni, Juerg Schwitter, Albert van Rossum, Robin Nijveldt, Antony Aletras, Genovefa Kolovou, Gerald Pohost, Joao Lima
Myocardial inflammation in autoimmune rheumatic diseases (ARDs) is the endpoint of various pathophysiologic processes. The Lake Louise-criteria is the most popular approach for the diagnosis of myocarditis. However, due to the diversity of myocardial inflammation in ARDs, some issues should be acknowledged. Of the three Lake Louise indices, early and late gadolinium enhancement (EGE and LGE respectively) measurements may be affected by co-existing disease processes or be present due to a fibrotic ARD like systemic sclerosis, leaving T2-ratio as the only uniformly robust measurement across ARDs...
November 14, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29153575/persistent-iron-within-the-infarct-core%C3%A2-after-st-segment-elevation-myocardial-infarction-implications-for-left-ventricular-remodeling-and-health%C3%A2-outcomes
#11
Jaclyn Carberry, David Carrick, Caroline Haig, Nadeem Ahmed, Ify Mordi, Margaret McEntegart, Mark C Petrie, Hany Eteiba, Stuart Hood, Stuart Watkins, Mitchell Lindsay, Andrew Davie, Ahmed Mahrous, Ian Ford, Naveed Sattar, Paul Welsh, Aleksandra Radjenovic, Keith G Oldroyd, Colin Berry
OBJECTIVES: This study sought to determine the incidence and prognostic significance of persistent iron in patients post-ST-segment elevation myocardial infarction (STEMI). BACKGROUND: The clinical significance of persistent iron within the infarct core after STEMI complicated by acute myocardial hemorrhage is poorly understood. METHODS: Patients who sustained an acute STEMI were enrolled in a cohort study (BHF MR-MI [Detection and Significance of Heart Injury in ST Elevation Myocardial Infarction])...
November 10, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29153572/prognostic-value-of-quantitative-stress-perfusion-cardiac-magnetic-resonance
#12
Eva C Sammut, Adriana D M Villa, Gabriella Di Giovine, Luke Dancy, Filippo Bosio, Thomas Gibbs, Swarna Jeyabraba, Susanne Schwenke, Steven E Williams, Michael Marber, Khaled Alfakih, Tevfik F Ismail, Reza Razavi, Amedeo Chiribiri
OBJECTIVES: This study sought to evaluate the prognostic usefulness of visual and quantitative perfusion cardiac magnetic resonance (CMR) ischemic burden in an unselected group of patients and to assess the validity of consensus-based ischemic burden thresholds extrapolated from nuclear studies. BACKGROUND: There are limited data on the prognostic value of assessing myocardial ischemic burden by CMR, and there are none using quantitative perfusion analysis. METHODS: Patients with suspected coronary artery disease referred for adenosine-stress perfusion CMR were included (n = 395; 70% male; age 58 ± 13 years)...
November 10, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29153564/sex-dimorphism-in-the-myocardial-response-to-aortic-stenosis
#13
Thomas A Treibel, Rebecca Kozor, Marianna Fontana, Camilla Torlasco, Patricia Reant, Sveeta Badiani, Maria Espinoza, John Yap, Javier Diez, Alun D Hughes, Guy Lloyd, James C Moon
OBJECTIVES: The goal of this study was to explore sex differences in myocardial remodeling in aortic stenosis (AS) by using echocardiography, cardiac magnetic resonance (CMR), and biomarkers. BACKGROUND: AS is a disease of both valve and left ventricle (LV). Sex differences in LV remodeling are reported in AS and may play a role in disease phenotyping. METHODS: This study was a prospective assessment of patients awaiting surgical valve replacement for severe AS using echocardiography, the 6-min walking test, biomarkers (high-sensitivity troponin T and N-terminal pro-brain natriuretic peptide), and CMR with late gadolinium enhancement and extracellular volume fraction, which dichotomizes the myocardium into matrix and cell volumes...
November 10, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29153562/noncontrast-myocardial-t1-mapping-by-cardiac-magnetic-resonance-predicts-outcome-in-patients-with-aortic-stenosis
#14
Heesun Lee, Jun-Bean Park, Yeonyee E Yoon, Eun-Ah Park, Hyung-Kwan Kim, Whal Lee, Yong-Jin Kim, Goo-Yeong Cho, Dae-Won Sohn, Andreas Greiser, Seung-Pyo Lee
OBJECTIVES: The aim of this study was to evaluate whether native T1 value of the myocardium on cardiac magnetic resonance (CMR) could predict clinical events in patients with significant aortic stenosis (AS). BACKGROUND: Although previous studies have demonstrated the prognostic value of focal fibrosis using late gadolinium enhancement (LGE) by CMR in AS patients, the prognostic implication of diffuse myocardial fibrosis by noninvasive imaging remains unknown. METHODS: A prospective observational longitudinal study was performed in 127 consecutive patients with moderate or severe AS (68...
November 10, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29151526/recent-inferior-myocardial-infarction-complicated-with-a-right-ventricular-thrombus-detected-by-three-cardiac-imaging-modalities
#15
Toshiki Kuno, Syohei Imaeda, Kenji Hashimoto, Toshinobu Ryuzaki, Tetsuya Saito, Hiroyuki Yamazaki, Ryota Tabei, Masaki Kodaira, Manabu Hase, Yohei Numasawa
We report the case of a 71-year-old woman diagnosed with recent inferior myocardial infarction complicated with right ventricular infarction and a right ventricular thrombus. Three-dimensional transthoracic echocardiography, contrast-enhanced computed tomography, and cardiac magnetic resonance imaging clearly detected a thrombus. We consider cases with a recent right ventricular infarction to require assessment for thrombus formations in the right ventricle. Fortunately, vigorous anticoagulation therapy resolved the thrombi in both the right ventricle and right coronary artery...
November 20, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29150492/predictors-of-mortality-in-patients-with-severe-ischemic-cardiomyopathy-undergoing-surgical-mitral-valve-intervention
#16
Kenya Kusunose, Nancy A Obuchowski, Marc Gillinov, Zoran B Popovic, Scott D Flamm, Brian P Griffin, Deborah H Kwon
BACKGROUND: Ischemic mitral regurgitation is associated with substantial risk of death. Although surgical mitral valve intervention (MVi) may improve symptoms, it has not been shown to improve survival. The aim of this study was to identify predictors of mortality in patients with ischemic mitral regurgitation and MVi. METHODS AND RESULTS: We evaluated 117 consecutive patients (age, 65±10 years) with advanced ischemic cardiomyopathy who underwent cardiac magnetic resonance and subsequent MVi between January 1, 2002 and January 1, 2012...
November 17, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29146749/statins-promote-cardiac-infarct-healing-by-modulating-endothelial-barrier-function-revealed-by-contrast-enhanced-magnetic-resonance-imaging
#17
Geert J Leenders, Mirjam B Smeets, Maaike van den Boomen, Monique Berben, Miranda Nabben, Dianne van Strijp, Gustav J Strijkers, Jeanine J Prompers, Fatih Arslan, Klaas Nicolay, Katrien Vandoorne
OBJECTIVE: The endothelium has a crucial role in wound healing, acting as a barrier to control transit of leukocytes. Endothelial barrier function is impaired in atherosclerosis preceding myocardial infarction (MI). Besides lowering lipids, statins modulate endothelial function. Here, we noninvasively tested whether statins affect permeability at the inflammatory (day 3) and the reparative (day 7) phase of infarct healing post-MI using contrast-enhanced cardiac magnetic resonance imaging...
November 16, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29146587/prognostic-stratification-of-patients-with-st-segment-elevation-myocardial-infarction-prospect-a-cardiac-magnetic-resonance-study
#18
Gianluca Pontone, Andrea I Guaricci, Daniele Andreini, Giovanni Ferro, Marco Guglielmo, Andrea Baggiano, Laura Fusini, Giuseppe Muscogiuri, Valentina Lorenzoni, Saima Mushtaq, Edoardo Conte, Andrea Annoni, Alberto Formenti, Maria Elisabetta Mancini, Patrizia Carità, Massimo Verdecchia, Silvia Pica, Fabio Fazzari, Nicola Cosentino, Giancarlo Marenzi, Mark G Rabbat, Piergiuseppe Agostoni, Antonio L Bartorelli, Mauro Pepi, Pier Giorgio Masci
BACKGROUND: Cardiac magnetic resonance (CMR) is a robust tool to evaluate left ventricular ejection fraction (LVEF), myocardial salvage index, microvascular obstruction, and myocardial hemorrhage in patients with ST-segment-elevation myocardial infarction. We evaluated the additional prognostic benefit of a CMR score over standard prognostic stratification with global registry of acute coronary events (GRACE) score and transthoracic echocardiography LVEF measurement. METHODS AND RESULTS: Two hundred nine consecutive patients with ST-segment-elevation myocardial infarction (age, 61...
November 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29146416/fulminant-adrenergic-myocarditis-complicated-by-pulmonary-edema-cardiogenic-shock-and-cardiac-arrest
#19
Pawel Rostoff, Bohdan Nessler, Patrycja Pikul, Karolina Golinska-Grzybala, Tomasz Miszalski-Jamka, Jadwiga Nessler
Adrenergic myocarditis is an uncommon presentation of pheochromocytoma and extremely rare cause of de novo acute heart failure (AHF). We present a case of a 31-year-old Caucasian woman with a history of hypertension and recurrent occipital headaches who was admitted to the emergency department due to severe de novo AHF presenting as pulmonary edema and cardiogenic shock. During the hospital admission the patient experienced asystolic cardiac arrest and was successfully resuscitated, intubated, and mechanically ventilated...
November 10, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29145950/a-combination-of-allogeneic-stem-cells-promotes-cardiac-regeneration
#20
Makoto Natsumeda, Victoria Florea, Angela C Rieger, Bryon A Tompkins, Monisha N Banerjee, Samuel Golpanian, Julia Fritsch, Ana Marie Landin, Nilesh D Kashikar, Vasileios Karantalis, Viky Y Loescher, Kostas E Hatzistergos, Luiza Bagno, Cristina Sanina, Muzammil Mushtaq, Jose Rodriguez, Marcos Rosado, Ariel Wolf, Kevin Collon, Louis Vincent, Anthony J Kanelidis, Ivonne H Schulman, Raul Mitrani, Alan W Heldman, Wayne Balkan, Joshua M Hare
BACKGROUND: The combination of autologous mesenchymal stem cells (MSCs) and cardiac stem cells (CSCs) synergistically reduces scar size and improves cardiac function in ischemic cardiomyopathy. Whereas allogeneic (allo-)MSCs are immunoevasive, the capacity of CSCs to similarly elude the immune system remains controversial, potentially limiting the success of allogeneic cell combination therapy (ACCT). OBJECTIVES: This study sought to test the hypothesis that ACCT synergistically promotes cardiac regeneration without provoking immunologic reactions...
November 14, 2017: Journal of the American College of Cardiology
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