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https://www.readbyqxmd.com/read/28525585/the-effects-of-gender-on-electrical-therapies-for-the-heart-physiology-epidemiology-and-access-to-therapies-a-report-from-the-xii-congress-of-the-italian-association-on-arrhythmology-and-cardiostimulation-aiac
#1
Giuseppe Boriani, Stefano Lorenzetti, Elisabetta Cerbai, Giuseppe Oreto, Gabriele Bronzetti, Vincenzo Livio Malavasi, Alessandro Biffi, Luigi Padeletti, Gianluca Botto, Igor Diemberger
The difference between men and women is clear even just by looking at an electrocardiogram: females present higher resting heart rate, a shorter QRS complex length and greater corrected QT interval. The development of these differences from pubertal age onward suggests that sexual hormones play a key role, although their effect is far from being completely understood. Different incidences between sexes have been reported for many arrhythmias, both ventricular and supraventricular, and also for sudden cardiac death...
May 19, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28521022/management-of-untreatable-ventricular-arrhythmias-during-pharmacologic-challenges-with-sodium-channel-blockers-for-suspected-brugada-syndrome
#2
Stefano Poli, Mauro Toniolo, Massimo Maiani, Davide Zanuttini, Luca Rebellato, Igor Vendramin, Ermanno Dametto, Guglielmo Bernardi, Flavio Bassi, Carlo Napolitano, Ugolino Livi, Alessandro Proclemer
Pharmacologic challenge with sodium channel blockers is part of the diagnostic workout in patients with suspected Brugada syndrome. The test is overall considered safe but both ajmaline and flecainide detain well known pro-arrhythmic properties. Moreover, the treatment of patients with life-threatening arrhythmias during these diagnostic procedures is not well defined. Current consensus guidelines suggest to adopt cautious protocols interrupting the sodium channel blockers as soon as any ECG alteration appears...
May 17, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28511997/thorough-qt-tqt-studies-concordance-with-torsadogenesis-and-an-evolving-cardiac-safety-testing-paradigm
#3
Barbara Wiśniowska, Zofia Tylutki, Sebastian Polak
Since 2005, when the International Conference on Harmonisation (ICH) E14 guideline was adopted, no drug has been withdrawn because of QTc prolongation or torsade de pointes arrhythmia. There are, however, costs associated with this success. In addition to the time and money invested, thorough QT (TQT) studies have limited the efficiency of the drug development pipeline. In this paper, we discuss the relevance of TQT trials as a tool for proarrhythmic risk prediction as a part of the debate regarding their usefulness...
May 13, 2017: Drug Discovery Today
https://www.readbyqxmd.com/read/28509703/pathway-for-the-management-of-atrial-fibrillation-and-atrial-flutter
#4
Eyal Herzog, Edgar Argulian, Steven B Levy, Emad F Aziz
Atrial fibrillation (AF) is the most common cardiac rhythm disturbance encountered in clinical practice, and its prevalence is increasing as the population ages. The American College of Cardiology, the American Heart Association, and the European Society of Cardiology established guidelines for the management of patients with AF. Atrial flutter (Afl) is less common and is often associated with or preceded by AF or occurs in an isolated pattern. A major limitation of the currently published guidelines for the management of patients with AF and Afl is their complexity, the fact that official guidelines are published separately for each of these arrhythmias, and that they were published several years ago...
June 2017: Critical Pathways in Cardiology
https://www.readbyqxmd.com/read/28508269/erratum-to-guidelines-in-review-comparison-between-aha-acc-and-esc-guidelines-for-the-management-of-patients-with-ventricular-arrhythmias-and-the-prevention-of-sudden-cardiac-death
#5
Alejandro Velasco, Jim Stirrup, Eliana Reyes, Fadi G Hage
No abstract text is available yet for this article.
May 15, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28500753/a-0h-1h-protocol-for-safe-early-discharge-of-chest-pain-patients
#6
Arash Mokhtari, Bertil Lindahl, Alexandru Schiopu, Troels Yndigegn, Ardavan Khoshnood, Patrik Gilje, Ulf Ekelund
OBJECTIVES: Guidelines recommend a 0h/1h high-sensitivity cardiac troponin T (hs-cTnT) diagnostic strategy in acute chest pain patients. There is however little data on the performance of this strategy when combined with clinical risk stratification. We aimed to evaluate the diagnostic accuracy of an accelerated diagnostic protocol (ADP) using the 0h/1h hs-cTnT strategy together with an adapted Thrombolysis In Myocardial Infarction (TIMI) score and ECG for ruling out major adverse cardiac events (MACE) within 30 days...
May 13, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28500480/-pulmonary-vein-isolation-for-atrial-fibrillation-findings-from-long-term-follow-up
#7
C-H Heeger, K-H Kuck, F Ouyang
Atrial fibrillation is by far the most common cardiac arrhythmia in humans. The incidence of atrial fibrillation increases with age and will increase even more in the future due to the demographic changes in the population. Therefore, this arrhythmia will have a growing clinical and socioeconomic impact. Although there are established pharmaceutical treatment options, atrial fibrillation is one of the major causes of stroke, heart failure and cardiovascular morbidity and mortality. The latest guidelines recommend the invasive procedure of circumferential pulmonary vein isolation (PVI) as an effective treatment of paroxysmal and persistent atrial fibrillation...
May 12, 2017: Herz
https://www.readbyqxmd.com/read/28497823/natural-products-modulating-the-herg-channel-heartaches-and-hope
#8
REVIEW
Jadel M Kratz, Ulrike Grienke, Olaf Scheel, Stefan A Mann, Judith M Rollinger
Covering: 1996-December 2016The human Ether-à-go-go Related Gene (hERG) channel is a voltage-gated potassium channel playing an essential role in the normal electrical activity in the heart. It is involved in the repolarization and termination of action potentials in excitable cardiac cells. Mutations in the hERG gene and hERG channel blockage by small molecules are associated with increased risk of fatal arrhythmias. Several drugs have been withdrawn from the market due to hERG channel-related cardiotoxicity...
May 12, 2017: Natural Product Reports
https://www.readbyqxmd.com/read/28492564/-heart-rate-as-a-therapeutic-target-after-acute-coronary-syndrome-and-in-chronic-coronary-heart-disease
#9
Marco Ambrosetti, Giuseppe Scardina, Giuseppe Favretto, Pier Luigi Temporelli, Pompilio Massimo Faggiano, Cesare Greco, Roberto Franco Pedretti
For patients with stable coronary artery disease (SCAD), either after hospitalization for acute cardiac events or in the chronic phase, comprehensive treatment programs should be devoted to: (i) reducing mortality and major adverse cardiovascular events, (ii) reducing the ischemic burden and related symptoms, and (iii) increasing exercise capacity and quality of life.Heart rate (HR) has demonstrated to have prognostic value and patients beyond the limit of 70 bpm display increased risk of all the above adverse outcomes, even after adjustment for parameters such as the extension of myocardial infarction and the presence of heart failure...
March 2017: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/28476519/the-underutilisation-of-dual-antiplatelet-therapy-in-acute-coronary-syndrome
#10
Malcolm Anastasius, Jerrett K Lau, Karice Hyun, Mario D'Souza, Anushka Patel, Jamie Rankin, Darren Walters, Craig Juergens, Bernadette Aliprandi-Costa, Andrew T Yan, Shaun G Goodman, Derek Chew, David Brieger
BACKGROUND: Despite guideline recommendation of dual antiplatelet therapy (DAPT) in treating ACS, DAPT is underutilized. Our objective was to determine independent predictors of DAPT non-prescription in ACS and describe pattern of DAPT prescription over time. METHODS: Patients presenting to 41 Australian hospitals with an ACS diagnosis between 2009 and 2016 were stratified according to discharge prescription with DAPT and single antiplatelet therapy (SAPT) or no antiplatelet therapy...
April 25, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28473068/acr-appropriateness-criteria-%C3%A2-dyspnea-suspected-cardiac-origin
#11
Jens Vogel-Claussen, Amany S M Elshafee, Jacobo Kirsch, Richard K J Brown, Lynne M Hurwitz, Cylen Javidan-Nejad, Paul R Julsrud, Christopher M Kramer, Rajesh Krishnamurthy, Archana T Laroia, Jonathon A Leipsic, Kalpesh K Panchal, Amar B Shah, Richard D White, Pamela K Woodard, Suhny Abbara
This article discusses imaging guidelines for five dyspnea variants: (1) dyspnea due to heart failure, ischemia not excluded; (2) dyspnea due to suspected nonischemic heart failure, ischemia excluded; (3) dyspnea due to suspected valvular heart disease, ischemia excluded; (4) dyspnea due to suspected cardiac arrhythmia, ischemia excluded; and (5) dyspnea due to suspected pericardial disease, ischemia excluded. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel...
May 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28465975/review-in-translational-cardiology-micrornas-and-myocardial-fibrosis-in-aortic-valve-stenosis-a-deep-insight-on-left-ventricular-remodeling
#12
REVIEW
Fabiani Iacopo, Conte Lorenzo, Enrico Calogero, Passiatore Matteo, Pugliese Nicola Riccardo, Santini Veronica, Barletta Valentina, Liga Riccardo, Scatena Cristian, Mazzanti Chiara Maria, Di Bello Vitantonio
MicroRNAs (miRNAs) are a huge class of noncoding RNAs that regulate protein-encoding genes (degradation/inhibition of translation). miRNAs are nowadays recognized as regulators of biological processes underneath cardiovascular disorders including hypertrophy, ischemia, arrhythmias, and valvular disease. In particular, circulating miRNAs are promising biomarkers of pathology. This review gives an overview of studies in aortic valve stenosis (AS), exclusively considering myocardial remodeling processes. We searched through literature (till September 2016), all studies and reviews involving miRNAs and AS (myocardial compartment)...
October 2016: Journal of Cardiovascular Echography
https://www.readbyqxmd.com/read/28454796/atrial-fibrillation-detected-by-continuous-electrocardiographic-monitoring-using-implantable-loop-recorder-to-prevent-stroke-in-individuals-at-risk-the-loop-study-rationale-and-design-of-a-large-randomized-controlled-trial
#13
Søren Zöga Diederichsen, Ketil Jørgen Haugan, Lars Køber, Søren Højberg, Axel Brandes, Christian Kronborg, Claus Graff, Anders Gaarsdal Holst, Jonas Bille Nielsen, Derk Krieger, Jesper Hastrup Svendsen
Atrial fibrillation (AF) increases the rate of stroke 5-fold, and AF-related strokes have a poorer prognosis compared with non-AF-related strokes. Atrial fibrillation and stroke constitute an intensifying challenge, and health care organizations are calling for awareness on the topic. Previous studies have demonstrated that AF is often asymptomatic and consequently undiagnosed. The implantable loop recorder (ILR) allows for continuous, long-term electrocardiographic monitoring with daily transmission of arrhythmia information, potentially leading to improvement in AF detection and stroke prevention...
May 2017: American Heart Journal
https://www.readbyqxmd.com/read/28447282/guidelines-in-review-comparison-between-aha-acc-and-esc-guidelines-for-the-management-of-patients-with-ventricular-arrhythmias-and-the-prevention-of-sudden-cardiac-death
#14
Alejandro Velasco, Jim Stirrup, Eliana Reyes, Fadi G Hage
No abstract text is available yet for this article.
April 26, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28416976/rationale-and-design-of-assaf-k-a-study-of-the-safety-and-efficacy-of-anticoagulant-therapy-in-the-treatment-of-atrial-fibrillation-in-kanagawa
#15
Yutaka Hatori, Hiroyuki Sakai, Tomoyuki Kunishima, Nobuo Hatori, Lin Chen, Tomoaki Ishigami, Naoki Satoh
BACKGROUND: Atrial fibrillation (AF) is one of the most prevalent cardiac arrhythmias associated with substantially increased risks of ischemic stroke and thromboembolism. Oral anticoagulants (OACs) are the cornerstone of AF management and effectively prevent AF-related stroke. As new non-vitamin K antagonist OACs (NOACs) have become available, the landscape of stroke prevention in AF has changed. However, there are considerable gaps between daily clinical practice and current guideline-based recommendations for anticoagulant therapy in Japan...
April 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28413184/risk-of-ischemic-stroke-in-patients-with-non-valvular-atrial-fibrillation-not-receiving-oral-anticoagulants%C3%A3-korean-nationwide-population-based-study
#16
Si-Hyuck Kang, Eue-Keun Choi, Kyung-Do Han, So-Ryoung Lee, Woo-Hyun Lim, Myung-Jin Cha, Youngjin Cho, Il-Young Oh, Seil Oh
BACKGROUND: Atrial fibrillation, the most common cardiac arrhythmia, is associated with an elevated thromboembolic risk, including ischemic stroke. Guidelines recommend the stratification of individual stroke risk and tailored antithrombotic therapy. This study investigated the demographics, comorbidities, and prognosis of non-valvular AF (NVAF) in Korean patients.Methods and Results:We extracted data on 10,846 patients with newly diagnosed NVAF who were naïve to oral anticoagulants from the National Health Insurance Service-National Sample Cohort...
April 12, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28397186/managing-cardiovascular-risk-of-macrolides-systematic-review-and-meta-analysis
#17
REVIEW
Angel Y S Wong, Esther W Chan, Shweta Anand, Alan J Worsley, Ian C K Wong
INTRODUCTION: It was postulated that antibiotics including macrolides could be used for the secondary prevention of coronary heart disease but recent studies showed that macrolides increase the cardiovascular risk. We aimed to review the evidence of cardiovascular risk associated with macrolides regarding duration of effect and risk factors; and to explore the potential effect of statins for the prevention of cardiovascular events as a result of macrolide use. METHODS: Several electronic databases (PubMed, EMBASE, Cochrane library) were searched to identify eligible studies...
April 10, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28395912/dobutamine-stress-echocardiography-impact-of-abnormal-blood-potassium-levels-on-cardiac-arrhythmias
#18
Jared G Bird, Robert B McCully, Patricia A Pellikka, Garvan C Kane
BACKGROUND: Guidelines suggest that an abnormal blood potassium level is a relative contraindication to performing dobutamine stress echocardiography (DSE). However, this has not been previously studied. METHODS: We reviewed a consecutive series of patients who had potassium testing within 48 hours of undergoing DSE for the evaluation of myocardial ischemia over a 10-year period (N = 13,198). Normal potassium range in our laboratory is 3.6-5.2 mmol/L. Hemolyzed samples were not included...
April 7, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28372463/patient-centred-care-of-patients-with-ventricular-arrhythmias-and-risk-of-sudden-cardiac-death-what-do-the-2015-european-society-of-cardiology-guidelines-add
#19
Tone M Norekvål, Paulus Kirchhof, Donna Fitzsimons
Nurses and allied professionals are at the forefront of care delivery in patients with arrythmogenic risk and have a responsibility to deliver care that is focused on their individual needs. The 2015 European Society of Cardiology guideline on prevention of ventricular arrhythmia and sudden cardiac death heralds a step-change in patient and family focus and interdisciplinary involvement. This development reflects a recognition within the European Society of Cardiology that chronic care of patients with cardiovascular conditions can be improved by involving all stakeholders, making use of multidisciplinary interventions, and placing the patient at the centre of the care process...
March 1, 2017: European Journal of Cardiovascular Nursing
https://www.readbyqxmd.com/read/28365181/sudden-death-in-ischemic-heart-disease-2017
#20
Alfred E Buxton
At this time, we find ourselves with an abundance of guidelines for management of patients with manifest ventricular tachyarrhythmias, or at risk for such arrhythmias, in patients with coronary heart disease (CHD). The guidelines are focused primarily on the "appropriate use" of the implantable cardioverter/defibrillator (ICD). Unfortunately, the bulk of the guidelines have very little basis in the underlying pathophysiology responsible for sudden cardiac death (SCD) in patients with CHD. Rather, they are based primarily on the results of randomized clinical trials that merely sought to take broad populations at elevated total mortality risk and determining whether the ICD can reduce overall mortality...
March 10, 2017: International Journal of Cardiology
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