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World Journal of Cardiology

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https://www.readbyqxmd.com/read/28400927/importance-of-a-second-spasm-provocation-test-four-cases-with-an-initial-negative-spasm-provocation-test
#1
Hiroki Teragawa, Yuichi Fujii, Yuko Uchimura, Tomohiro Ueda
The spasm provocation test (SPT) is an important test in the diagnosis of vasospastic angina (VSA). In many cases, this test is performed as the gold standard test, and VSA is considered not present if the SPT is negative. However, some patients continue to experience chest symptoms despite a negative SPT. In this study, we report four cases in which SPT was repeated to evaluate chest symptoms despite the negative results of the first SPT. Two men in their 70s, one woman in her 60s, and one woman in her 70s, all with chest symptoms, underwent a second SPT at 4, 3, 2, and 3 years, respectively, after the first SPT, which was negative...
March 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28400926/early-stent-thrombosis-secondary-to-food-allergic-reaction-kounis-syndrome-following-rice-pudding-ingestion
#2
Georgios Tzanis, Maria Bonou, Nikolaos Mikos, Smaragda Biliou, Ioanna Koniari, Nicholas G Kounis, John Barbetseas
Kounis syndrome is the concurrence of coronary spasm, acute myocardial infarction or stent thrombosis, with allergic reactions in the setting of mast-cell and platelet activation. In this report Kounis syndrome manifesting as stent thrombosis with left ventricular thrombus formation was triggered by a food-induced allergic reaction. The allergic reaction to food was confirmed by oral rice pudding ingredients challenge test while skin tests were inconclusive. To our knowledge, this is first report of early stent thrombosis secondary to food allergic reaction in a 70-year-old man patient who was found to have left ventricular thrombus and undiagnosed hypertrophic cardiomyopathy...
March 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28400925/children-with-transposition-of-the-great-arteries-should-they-actually-be-born-in-nigeria
#3
Barakat Adeola Animasahun, Akpoembele Deborah Madise-Wobo, Henry Olusegun Gbelee, Samuel Ilenre Omokhodion
AIM: To describe the clinical and echocardiographic features of Nigerian children with transposition of the great arteries and emphasize the need for collaboration with cardiac centres in the developed countries to be able to salvage the children. METHODS: Prospective and cross sectional involving consecutive patients diagnosed with transposition of the great arteries using clinical evaluation and echocardiography at the Paediatric Department of Lagos State University Teaching Hospital, Lagos Nigeria as part of a large study between January 2007 and December 2015...
March 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28400924/risk-of-ventricular-arrhythmia-in-patients-with-myocardial-infarction-and-non-obstructive-coronary-arteries-and-normal-ejection-fraction
#4
Loïc Bière, Marjorie Niro, Hervé Pouliquen, Jean-Baptiste Gourraud, Fabrice Prunier, Alain Furber, Vincent Probst
AIM: To assess the arrhythmic determinants and prognosis of patients presenting with myocardial infarction and non-obstructive coronary arteries (MINOCA) with normal ejection fraction (EF). METHODS: This is an observational analysis of 131 MINOCA patients with normal EF. Three cardiac magnetic resonance (CMR) diagnosis classes were recognized according to the late gadolinium enhancement (LGE) pattern: Myocardial infarction (MI) (n = 34), myocarditis (n = 47), and "no LGE" (n = 50)...
March 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28400923/significance-of-inferior-wall-ischemia-in-non-dominant-right-coronary-artery-anatomy
#5
Ali Osama Malik, Oliver Abela, Subodh Devabhaktuni, Arhama Aftab Malik, Gayle Allenback, Chowdhury H Ahsan, Sanjay Malhotra, Jimmy Diep
AIM: To investigate the relationship of inferior wall ischemia on myocardial perfusion imaging in patients with non-dominant right coronary artery anatomy. METHODS: This was a retrospective observational analysis of consecutive patients who presented to the emergency department with primary complaint of chest pain. Only patients who underwent single photon emission computed tomography (SPECT) myocardial perfusion imaging (MPI) were included. Patients who showed a reversible defect on SPECT MPI and had coronary angiography during the same hospitalization was analyzed...
March 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28400922/pheochromocytoma-and-stress-cardiomyopathy-insight-into-pathogenesis
#6
Sahil Agrawal, Jamshid Shirani, Lohit Garg, Amitoj Singh, Santo Longo, Angelita Longo, Mark Fegley, Lauren Stone, Muhammad Razavi, Nicoleta Radoianu, Sudip Nanda
AIM: To investigate the occurrence of cardiomyopathy (CMP) in a cohort of patients with histologically proven pheochromocytoma (pheo), and to determine if catecholamine excess was causative of the left ventricular (LV) dysfunction. METHODS: A retrospective chart review spanning years 1998 through 2014 was undertaken and patients with a diagnosis of pheo confirmed with histopathologic examination were included. Presenting electrocardiograms and cardiac imaging studies were reviewed...
March 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28400921/validity-of-electrocardiographic-criteria-for-increased-left-ventricular-mass-in-young-patients-in-the-general-population
#7
Eduard Sklyar, Paul Ginelli, Aaron Barton, Richard Peralta, Jonathan N Bella
AIM: To investigate validity of electrocardiographic (ECG) criteria for left ventricular hypertrophy (LVH) in young adults. METHODS: Retrospectively, echocardiograms showing LVH and concomitant electrocardiograms were collected in patients 18 to 39 years old. A control group of patients without LVH was collected. Using echocardiogram as the gold standard, electrocardiograms were analyzed using common voltage criteria. RESULTS: Study included 100 subjects (52% male, mean age = 28 ± 6...
March 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28400920/accuracy-of-gestalt-perception-of-acute-chest-pain-in-predicting-coronary-artery-disease
#8
Cláudio Marcelo Bittencourt das Virgens, Laudenor Lemos, Márcia Noya-Rabelo, Manuela Campelo Carvalhal, Antônio Maurício Dos Santos Cerqueira Junior, Fernanda Oliveira de Andrade Lopes, Nicole Cruz de Sá, Jéssica Gonzalez Suerdieck, Thiago Menezes Barbosa de Souza, Vitor Calixto de Almeida Correia, Gabriella Sant'Ana Sodré, André Barcelos da Silva, Felipe Kalil Beirão Alexandre, Felipe Rodrigues Marques Ferreira, Luís Cláudio Lemos Correia
AIM: To test accuracy and reproducibility of gestalt to predict obstructive coronary artery disease (CAD) in patients with acute chest pain. METHODS: We studied individuals who were consecutively admitted to our Chest Pain Unit. At admission, investigators performed a standardized interview and recorded 14 chest pain features. Based on these features, a cardiologist who was blind to other clinical characteristics made unstructured judgment of CAD probability, both numerically and categorically...
March 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28400919/paroxysmal-atrial-fibrillation-ablation-achieving-permanent-pulmonary-vein-isolation-by-point-by-point-radiofrequency-lesions
#9
REVIEW
Alonso Pedrote, Juan Acosta, Beatriz Jáuregui-Garrido, Manuel Frutos-López, Eduardo Arana-Rueda
Pulmonary vein isolation by point-by-point radiofrequency catheter ablation constitutes the cornerstone of catheter ablation strategies for the treatment of atrial fibrillation. However, despite advances in pulmonary vein isolation ablation strategies, long-term success rates after ablation remain suboptimal, which highlights the need to develop techniques to achieve more durable lesions. Strategies proposed to improve the durability of pulmonary vein isolation can be divided into two groups: Those addressed to improving the quality of the lesion and those that optimize the detection of acute PV reconnection during the ablation procedure...
March 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28400918/patient-selection-for-transcatheter-aortic-valve-replacement-a-combined-clinical-and-multimodality-imaging-approach
#10
REVIEW
Rosangela Cocchia, Antonello D'Andrea, Marianna Conte, Massimo Cavallaro, Lucia Riegler, Rodolfo Citro, Cesare Sirignano, Massimo Imbriaco, Maurizio Cappelli, Giovanni Gregorio, Raffaele Calabrò, Eduardo Bossone
Transcatheter aortic valve replacement (TAVR) has been validated as a new therapy for patients affected by severe symptomatic aortic stenosis who are not eligible for surgical intervention because of major contraindication or high operative risk. Patient selection for TAVR should be based not only on accurate assessment of aortic stenosis morphology, but also on several clinical and functional data. Multi-Imaging modalities should be preferred for assessing the anatomy and the dimensions of the aortic valve and annulus before TAVR...
March 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28400917/coronary-stenting-a-matter-of-revascularization
#11
EDITORIAL
Aldo Bonaventura, Fabrizio Montecucco, Luca Liberale
In the last few decades, the recommended treatment for coronary artery disease has been dramatically improved by percutaneous coronary intervention (PCI) and the use of balloon catheters, bare metal stents (BMSs), and drug-eluting stents (DESs). Catheter balloons were burdened by acute vessel occlusion or target-lesion re-stenosis. BMSs greatly reduced those problems holding up the vessel structure, but showed high rates of in-stent re-stenosis, which is characterized by neo-intimal hyperplasia and vessel remodeling leading to a re-narrowing of the vessel diameter...
March 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28400916/angiotensin-receptor-blocker-drugs-and-inhibition-of-adrenal-beta-arrestin-1-dependent-aldosterone-production-implications-for-heart-failure-therapy
#12
EDITORIAL
Anastasios Lymperopoulos, Beatrix Aukszi
Aldosterone mediates many of the physiological and pathophysiological/cardio-toxic effects of angiotensin II (AngII). Its synthesis and secretion from the zona glomerulosa cells of the adrenal cortex, elevated in chronic heart failure (HF), is induced by AngII type 1 receptors (AT1Rs). The AT1R is a G protein-coupled receptor, mainly coupling to Gq/11 proteins. However, it can also signal through β-arrestin-1 (βarr1) or -2 (βarr2), both of which mediate G protein-independent signaling. Over the past decade, a second, Gq/11 protein-independent but βarr1-dependent signaling pathway emanating from the adrenocortical AT1R and leading to aldosterone production has become appreciated...
March 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28289535/very-late-transcatheter-heart-valve-thrombosis
#13
Etienne L Couture, Serge Lepage, Jean-Bernard Masson, Benoit Daneault
We describe a case of very late transcatheter heart valve (THV) thrombosis of a first-generation SAPIEN prosthesis (Edwards Lifesciences, Irvine, CA) implanted in a 64-year-old woman with severe symptomatic aortic stenosis. More than 54 mo after implantation, she presented with severe symptomatic prosthesis dysfunction (stenosis) which was successfully treated with oral anticoagulation. To our knowledge, this is the tardiest case of THV thrombosis ever reported. This case should increase clinical awareness for THV thrombosis even beyond the first two-year period following implantation...
February 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28289534/dysphagia-after-arteria-lusoria-dextra-surgery-anatomical-considerations-before-redo-surgery
#14
Judith Mayer, Natascha van der Werf-Grohmann, Johannes Kroll, Ute Spiekerkoetter, Brigitte Stiller, Jochen Grohmann
Aberrant right subclavian artery (arteria lusoria) is the most common congenital root anomaly, remaining asymptomatic in most cases. Nevertheless, some of the 20%-40% of those affected present tracheo-esophageal symptoms. We report on a 6-year-old previously healthy girl presenting with progressive dysphagia over 4 wk. Diagnostics including barium swallow, echocardiography and magnetic resonance angiography (MRA) revealed a retro-esophageal compression by an aberrant right subclavian artery. Despite the successful, uneventful transposition of this arteria lusoria to the right common carotid via right-sided thoracotomy, the girl was suffering from persisting dysphagia...
February 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28289533/ivabradine-in-the-treatment-of-systolic-heart-failure-a-systematic-review-and-meta-analysis
#15
Mahesh Anantha Narayanan, Yogesh N V Reddy, Janani Baskaran, Abhishek Deshmukh, David G Benditt, Ganesh Raveendran
AIM: To perform a systematic-review and meta-analysis to compare outcomes of ivabradine combined with beta-blocker to beta-blocker alone in heart failure with reduced ejection fraction (HFrEF). METHODS: We searched PubMed, Cochrane, EMBASE, CINAHL and Web of Science for trials comparing ivabradine + beta-blocker to beta-blocker alone in HFrEF. We performed a systematic-review and meta-analysis of published literature. Primary end-point was combined end point of cardiac death and hospitalization for heart failure...
February 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28289532/association-between-high-cystatin-c-levels-and-carotid-atherosclerosis
#16
Toshiyuki Kobayashi, Hirohide Yokokawa, Kazutoshi Fujibayashi, Tomomi Haniu, Teruhiko Hisaoka, Hiroshi Fukuda, Toshio Naito
AIM: To investigate the association between carotid atherosclerosis and cystatin C (CysC) and to determine the optimal CysC cut-off value. METHODS: One hundred twenty-eight subjects were included in this study. Atherosclerosis was defined as a maximum carotid plaque thickness (MCPT) of greater than 2 mm. A receiver operating characteristic curve analysis was used to determine the diagnostic value of serum CysC for atherosclerosis. The subjects were divided into two groups according to the CysC cut-off value...
February 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28289531/critical-analysis-of-ineffective-post-implantation-implantable-cardioverter-defibrillator-testing
#17
Markus Roos, J Christoph Geller, Marc-Alexander Ohlow
AIM: To test of the implantable-cardioverter-defibrillator is done at the time of implantation. We investigate if any testing should be performed. METHODS: All consecutive patients between January 2006 and December 2008 undergoing implantable cardioverter-defibrillator (ICD) implantation/replacement (a total of 634 patients) were included in the retrospective study. RESULTS: Sixteen patients (2.5%) were not tested (9 with LA/LV-thrombus, 7 due to operator's decision)...
February 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28289530/consumption-of-energy-beverage-is-associated-with-attenuation-of-arterial-endothelial-flow-mediated-dilatation
#18
John P Higgins, Benjamin Yang, Nikki E Herrin, Santi Yarlagadda, George T Le, Brandon L Ortiz, Asif Ali, Stephen C Infanger
AIM: To investigate whether consumption of an energy drink will acutely impair endothelial function in young healthy adults. METHODS: Energy drinks are being consumed more and more worldwide, and have been associated with some deaths in adolescents and young adults, especially when consumed while exercising. After fasting and not smoking for at least 8 h prior, eleven medical students (9 males) received an electrocardiogram, blood pressure and pulse check, and underwent baseline testing (BL) of endothelial function using the technique of endothelium-dependent flow mediated dilatation (FMD) with high-resolution ultrasound (according to recommended guidelines of the University of Wisconsin Atherosclerosis Imaging Research Program Core Laboratory)...
February 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28289529/optimal-timing-of-same-admission-orthotopic-heart-transplantation-after-left-ventricular-assist-device-implantation
#19
Gunsagar Gulati, David Ouyang, Richard Ha, Dipanjan Banerjee
AIM: To investigate the impact of timing of same-admission orthotopic heart transplant (OHT) after left ventricular assist device (LVAD) implantation on in-hospital mortality and post-transplant length of stay. METHODS: Using data from the Nationwide Inpatient Sample from 1998 to 2011, we identified patients 18 years of age or older who underwent implantation of a LVAD and for whom the procedure date was available. We calculated in-hospital mortality for those patients who underwent OHT during the same admission as a function of time from LVAD to OHT, adjusting for age, sex, race, household income, and number of comorbid diagnoses...
February 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28289528/clinical-cardiac-regenerative-studies-in-children
#20
REVIEW
Imre J Pavo, Ina Michel-Behnke
Although the incidence of pediatric heart failure is low, the mortality is relatively high, with severe clinical symptoms requiring repeated hospitalization or intensive care treatment in the surviving patients. Cardiac biopsy specimens have revealed a higher number of resident human cardiac progenitor cells, with greater proliferation and differentiation capacity, in the neonatal period as compared with adults, demonstrating the regeneration potential of the young heart, with rising interest in cardiac regeneration therapy in critically ill pediatric patients...
February 26, 2017: World Journal of Cardiology
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