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https://www.readbyqxmd.com/read/28087564/right-ventricular-ejection-fraction-is-incremental-to-left-ventricular-ejection-fraction-for-the-prediction-of-future-arrhythmic-events-in-patients-with-systolic-dysfunction
#1
Yoko Mikami, Umjeet Jolly, Bobak Heydari, Mingkai Peng, Fahad Almehmadi, Mohammed Zahrani, Mahmoud Bokhari, John Stirrat, Carmen P Lydell, Andrew G Howarth, Raymond Yee, James A White
BACKGROUND: Left ventricular ejection fraction remains the primary risk stratification tool used in the selection of patients for implantable cardioverter defibrillator therapy. However, this solitary marker fails to identify a substantial portion of patients experiencing sudden cardiac arrest. In this study, we examined the incremental value of considering right ventricular ejection fraction for the prediction of future arrhythmic events in patients with systolic dysfunction using the gold standard of cardiovascular magnetic resonance...
January 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28087286/incidence-and-survival-outcome-according-to-heart-rhythm-during-resuscitation-attempt-in-out-of-hospital-cardiac-arrest-patients-with-presumed-cardiac-etiology
#2
Shahzleen Rajan, Fredrik Folke, Steen Møller Hansen, Carolina Malta Hansen, Kristian Kragholm, Thomas A Gerds, Freddy K Lippert, Lena Karlsson, Sidsel Møller, Lars Køber, Gunnar H Gislason, Christian Torp-Pedersen, Mads Wissenberg
BACKGROUND: Knowledge about heart rhythm conversion from non-shockable to shockable rhythm during resuscitation attempt after out-of-hospital cardiac arrest (OHCA) and following chance of survival is limited and inconsistent. METHODS: We studied 13,860 patients with presumed cardiac-caused OHCA not witnessed by the emergency medical services from the Danish Cardiac Arrest Register (2005-2012). Patients were stratified according to rhythm: shockable, converted shockable (based on receipt of subsequent defibrillation) and sustained non-shockable rhythm...
January 10, 2017: Resuscitation
https://www.readbyqxmd.com/read/28079553/end-of-life-decisions-in-heart-failure-to-turn-off-the-intracardiac-device-or-not
#3
Bilal Ayach, Amrit Malik, Colette Seifer, Shelley Zieroth
PURPOSE OF REVIEW: Heart failure is a significant public health concern around the world. Implantable cardioverter defibrillators with or without cardiac resynchronization therapy (CRT-D) have proven survival benefit. As patients progress to end-stage disease, management shifts to palliative care, and cardiologists are often confronted with how to best manage these devices. RECENT FINDINGS: Studies suggest that up to one-third of patients with an implantable cardioverter defibrillator receive painful shocks in the last 24 h of life...
January 11, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28079110/left-ventricular-noncompaction-cardiomyopathy-cardiac-neuromuscular-and-genetic-factors
#4
REVIEW
Josef Finsterer, Claudia Stöllberger, Jeffrey A Towbin
Left ventricular hypertrabeculation (LVHT) or noncompaction is a myocardial abnormality of unknown aetiology, frequently associated with monogenic disorders, particularly neuromuscular disorders, or with chromosomal defects. LVHT is diagnosed usually by echocardiography by the presence of a bilayered myocardium consisting of a thick, spongy, noncompacted endocardial layer and a thin, compacted, epicardial layer. The pathogenesis of LVHT is unsolved, and the diagnostic criteria, prognosis, and optimal treatment of patients with LVHT are under debate...
January 12, 2017: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/28078074/fes-in-europe-and-beyond-current-translational-research
#5
Christine Azevedo Coste, Winfried Mayr, Manfred Bijak, Antonio Musarò, Ugo Carraro
Capacity of adult neural and muscle tissues to respond to external Electrical Stimulation (ES) is the biological basis for the development and implementation of mobility impairment physiotherapy protocols and of related assistive technologies, e.g, Functional Electrical Stimulation (FES). All body tissues, however, respond to electrical stimulation and, indeed, the most successful application of FES is electrical stimulation of the heart to revert or limit effects of arrhythmias (Pace-makers and Defibrillators)...
September 15, 2016: European Journal of Translational Myology
https://www.readbyqxmd.com/read/28077815/the-j-wave-as-a-predictor-of-life-threatening-arrhythmia-in-icd-patients
#6
Naruya Ishizue, Shinichi Niwano, Hidehira Fukaya, Hironori Nakamura, Tazuru Igarashi, Tamami Fujiishi, Jun Oikawa, Jun Kishihara, Masami Murakami, Hiroe Niwano, Junya Ako
The J-wave has been reported to be associated with life-threatening ventricular arrhythmia. However, the clinical implication of the J-wave is still unclear in patients with an implantable cardioverter defibrillator (ICD).The study population consisted of 170 ICD patients (age, 56 ± 16 years, 79.4% male) treated at Kitasato University Hospital between 2003 and 2014. Ventricular fibrillation (VF) and ventricular tachycardia (VT) events were documented via ICD interrogation, and the patients were divided into 3 groups: 1) VF event group, 2) VT event group, and 3) No-event group...
January 11, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28075105/heart-failure-due-to-reduced-ejection-fraction-medical-management
#7
William E Chavey, Robrt V Hogikyan, R Van Harrison, John M Nicklas
Heart failure is an increasingly common condition resulting in high rates of morbidity and mortality. For patients who have heart failure and reduced ejection fraction, randomized clinical trials demonstrate consistent mortality benefit from angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, direct-acting vasodilators, beta blockers, and aldosterone antagonists. Additionally, some data show benefits from two new classes of drugs: angiotensin receptor blocker/neprilysin inhibitor and sinus node modulator...
January 1, 2017: American Family Physician
https://www.readbyqxmd.com/read/28073910/implantation-of-the-subcutaneous-implantable-cardioverter-defibrillator-an-evaluation-of-4-implantation-techniques
#8
Tom F Brouwer, Marc A Miller, Anne-Floor B E Quast, Chandrasekar Palaniswamy, Srinivas R Dukkipati, Vivek Reddy, Arthur A Wilde, Jonathan M Willner, Reinoud E Knops
BACKGROUND: Alternative techniques to the traditional 3-incision subcutaneous implantation of the subcutaneous implantable cardioverter-defibrillator may offer procedural and cosmetic advantages. We evaluate 4 different implant techniques of the subcutaneous implantable cardioverter-defibrillator. METHODS AND RESULTS: Patients implanted with subcutaneous implantable cardioverter-defibrillators from 2 hospitals between 2009 and 2016 were included. Four implantation techniques were used depending on physician preference and patient characteristics...
January 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28073883/infective-endocarditis-and-risk-of-death-after-cardiac-implantable-electronic-device-implantation-a-nationwide-cohort-study
#9
Cengiz Özcan, Jakob Raunsø, Morten Lamberts, Lars Køber, Tommi Bo Lindhardt, Niels Eske Bruun, Marie Louise Laursen, Christian Torp-Pedersen, Gunnar Hilmar Gislason, Morten Lock Hansen
AIMS: To determine the incidence, risk factors, and mortality of infective endocarditis (IE) following implantation of a first-time, permanent, cardiac implantable electronic device (CIED). METHODS AND RESULTS: From Danish nationwide administrative registers (beginning in 1996), we identified all de-novo permanent pacemakers (PMs) and implantable cardioverter defibrillators (ICDs) together with the occurrence of post-implantation IE-events in the period from 2000-2012...
January 10, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28073660/effectiveness-of-subcutaneous-implantable-cardioverter-defibrillator-testing-in-patients-with-hypertrophic-cardiomyopathy
#10
Niccoló Maurizi, Ilaria Tanini, Iacopo Olivotto, Ernesto Amendola, Giuseppe Limongelli, Maria Angela Losi, Giuseppe Allocca, Giovanni Battista Perego, Paolo Pieragnoli, Giuseppe Ricciardi, Paolo De Filippo, Paola Ferrari, Giovanni Quarta, Stefano Viani, Antonio Rapacciuolo, Maria Grazia Bongiorni, Franco Cecchi
BACKGROUND: Subcutaneous ICD (S-ICD) is a promising option for Hypertrophic Cardiomyopathy (HCM) patients at risk of Sudden Cardiac Death (SCD). However, its effectiveness in terminating ventricular arrhythmias in HCM is yet unresolved. METHODS: Consecutive HCM patients referred for S-ICD implantation were prospectively enrolled. Patients underwent one or two attempts of VF induction by the programmer. Successful conversion was defined as any 65J shock that terminated VF (not requiring rescue shocks)...
January 4, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28069274/extended-bipolar-left-ventricular-pacing-as-a-possible-therapy-for-late-electrical-storm-induced-by-cardiac-resynchronization-therapy
#11
Dimitrios Asvestas, Richard Balasubramaniam, Mark Sopher, John Paisey, Girish G Babu
Although cardiac resynchronization therapy (CRT) has become a well-established treatment option for patients with drug-refractory severe systolic heart failure, there has been some evidence of adverse proarrhythmic events. We report a case of a patient with ischemic cardiomyopathy who underwent CRT with a defibrillator for primary prevention of sudden cardiac death. Two years after the implantation, the patient presented with electrical storm, which was completely terminated by modifying the left ventricular (LV) pacing configuration from true to extended bipolar LV pacing...
December 30, 2016: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28065904/increasing-sex-differences-in-the-use-of-cardiac-resynchronization-therapy-with-or-without-implantable-cardioverter-defibrillator
#12
Neal A Chatterjee, Rasmus Borgquist, Yuchiao Chang, Jennifer Lewey, Vicki A Jackson, Jagmeet P Singh, Joshua P Metlay, Charlotta Lindvall
AIMS: Previous studies have identified sex disparities in the use of cardiac resynchronization therapy (CRT) and implantable cardioverter defibrillators (ICD), although the basis of underutilization in women remains poorly understood. The aim of this study was to assess sex differences in patterns of CRT use with our without ICD. METHODS AND RESULTS: In this cross-sectional study using the National Inpatient Sample database we identified 311 009 patients undergoing CRT implantation in the United States between 2006 and 2012...
January 8, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28065887/procedural-outcomes-and-long-term-survival-following-trans-venous-defibrillator-lead-extraction-in-patients-with-end-stage-renal-disease
#13
Anand D Shah, Lakshmi P Peddareddy, Maher A Addish, Kimberly Kelly, Adarsh U Patel, Mary Casey, Abhinav Goyal, Angel R Leon, Mikhael F El-Chami, Faisal M Merchant
AIMS: End-stage renal disease (ESRD) increases the risk of implantable cardioverter-defibrillator (ICD) infection. We sought to define outcomes of lead extraction in patients with ESRD. METHODS AND RESULTS: Implantable cardioverter-defibrillator lead extractions at our institution from January 2006 to March 2014 were stratified by absence (Control-Ex, n = 465) or presence (ESRD-Ex, n = 43) of ESRD. Procedural outcomes and survival were determined by medical records review...
January 8, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28064433/magnetic-vt-study-a-prospective-multicenter-post-market-randomized-controlled-trial-comparing-vt-ablation-outcomes-using-remote-magnetic-navigation-guided-substrate-mapping-and-ablation-versus-manual-approach-in-a-low-lvef-population
#14
Luigi Di Biase, Roderick Tung, Tamás Szili-Torok, J David Burkhardt, Peter Weiss, Rene Tavernier, Adam E Berman, Erik Wissner, William Spear, Xu Chen, Petr Neužil, Jan Skoda, Dhanunjaya Lakkireddy, Bruno Schwagten, Ken Lock, Andrea Natale
PURPOSE: Patients with ischemic cardiomyopathy (ICM) are prone to scar-related ventricular tachycardia (VT). The success of VT ablation depends on accurate arrhythmogenic substrate localization, followed by optimal delivery of energy provided by constant electrode-tissue contact. Current manual and remote magnetic navigation (RMN)-guided ablation strategies aim to identify a reentry circuit and to target a critical isthmus through activation and entrainment mapping during ongoing tachycardia...
January 7, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28064156/high-prevalence-of-baffle-leaks-in-adults-after-atrial-switch-operations-for-transposition-of-the-great-arteries
#15
Gabriella De Pasquale, Francesca Bonassin Tempesta, Bruno Santos Lopes, Daniela Babic, Angela Oxenius, Theresa Seeliger, Christiane Gruner, Felix C Tanner, Patric Biaggi, Christine Attenhofer Jost, Matthias Greutmann
AIMS: To determine the prevalence of baffle leaks in adults after atrial switch operations for transposition of the great arteries, as these may predispose to paradoxical embolic events, particularly in patients with transvenous pacemaker or defibrillator leads. METHODS AND RESULTS: We routinely perform contrast echocardiography with agitated saline in all patients after atrial switch operations. For this study, we analysed patients who had saline contrast echocardiography between 2010 and 2012...
January 6, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28064030/discrepancies-in-the-u-s-and-european-guidelines-involving-the-implantable-cardioverter-defibrillator-and-cardiac-resynchronization-therapy-need-for-a-single-shared-international-publication
#16
EDITORIAL
Valentina Kutyifa, David Cannom, Helmut U Klein, Arthur J Moss
No abstract text is available yet for this article.
January 4, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28063720/a-case-of-cardiac-arrest-that-occurred-on-a-high-mountain-in-which-a-favorable-outcome-was-obtained
#17
Youichi Yanagawa, Kazuhiko Omori, Ikuto Takeuchi, Kei Jitsuiki, Toshihiko Yoshizawa, Kouhei Ishikawa, Yumi Kando, Mutsumu Fukata, Hiromichi Ohsaka
A 36-year-old man started to climb Mount Fuji (3776m above sea level: ASL), from the Gotemba new fifth station (2400m ASL). He had no significant medical history, and this was his first attempt to climb such a high mountain. He began feeling chest discomfort but continued to climb. When he reached the ninth station of the mountain (3600mASL), he lost consciousness. One individual immediately provided basic life support using an automated external defibrillator (AED) that was located in the station. After electroshocks, he regained consciousness...
October 24, 2016: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28062467/basic-life-support-education-in-secondary-schools-a-cross-sectional-survey-in-london-uk
#18
Justin D Salciccioli, Dominic C Marshall, Mark Sykes, Alexander D Wood, Stephanie A Joppa, Madhurima Sinha, P Boon Lim
OBJECTIVES: Basic life support (BLS) training in schools is associated with improved outcomes from cardiac arrest. International consensus statements have recommended universal BLS training for school-aged children. The current practice of BLS training in London schools is unknown. The aim of this study was to assess current practices of BLS training in London secondary schools. SETTING, POPULATION AND OUTCOMES: A prospective audit of BLS training in London secondary schools was conducted...
January 6, 2017: BMJ Open
https://www.readbyqxmd.com/read/28061923/electromagnetic-interference-in-implantable-defibrillators-in-single-engine-fixed-wing-aircraft
#19
Alexandra A J de Rotte, Peter van der Kemp, Peter A Mundy, Rienk Rienks, August A de Rotte
BACKGROUND: Little is known about the possible electromagnetic interferences (EMI) in the single-engine fixed-wing aircraft environment with implantable cardio-defibrillators (ICDs). Our hypothesis is that EMI in the cockpit of a single-engine fixed-wing aircraft does not result in erroneous detection of arrhythmias and the subsequent delivery of an inappropriate device therapy. METHODS: ICD devices of four different manufacturers, incorporated in a thorax phantom, were transported in a Piper Dakota Aircraft with ICAO type designator P28B during several flights...
January 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28058848/implantable-cardioverter-defibrillator-and-survival-after-out-of-hospital-cardiac-arrest-due-to-acute-myocardial-infarction-in-denmark-in-the-years-2001-2012-a-nationwide-study
#20
Matilde Winther-Jensen, Jesper Kjaergaard, Jens F Lassen, Lars Køber, Christian Torp-Pedersen, Steen M Hansen, Freddy Lippert, Kristian Kragholm, Erika F Christensen, Christian Hassager
AIM: The purpose of this study was to describe the implantation of implantable cardioverter defibrillator after out-of-hospital cardiac arrest caused by myocardial infarction in Denmark 2001-2012 and subsequent survival. METHODS: The Danish Cardiac Arrest Registry was used to identify patients ⩾18 years surviving to discharge without prior implantable cardioverter defibrillator. Information on cardioverter defibrillator implantation was obtained from the National Patient Registry...
January 1, 2017: European Heart Journal. Acute Cardiovascular Care
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