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Implantable cardioverter defibrillator

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https://www.readbyqxmd.com/read/28101964/patient-outcome-after-implant-of-a-cardioverter-defibrillator-in-the-real-world-the-key-role-of-co-morbidities
#1
EDITORIAL
Giuseppe Boriani, Vincenzo Livio Malavasi
No abstract text is available yet for this article.
January 19, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28100976/ventricular-tachycardia-in-fabry-disease-detected-in-a-50-year-old-woman-during-14-day-continuous-cardiac-monitoring
#2
Jaime Silva-Gburek, Laura Rochford, Robert Hopkin, John L Jefferies
Fabry disease is an X-linked lysosomal storage disorder. Female carriers were long thought to be asymptomatic; however, research has revealed the opposite. Cardiac conditions are the chief causes of death in women with Fabry disease. Although ventricular tachycardia has been reported in male patients with Fabry disease, it is not thought to be a frequent finding in females. We describe the case of a 50-year-old woman in whom we used 14-day continuous electrocardiographic monitoring to identify nonsustained ventricular tachycardia, after electrocardiograms and 24-hour Holter monitoring failed to detect the arrhythmia...
December 2016: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28096098/avoiding-untimely-implantable-cardioverter-defibrillator-implantation-by-intensified-heart-failure-therapy-optimization-supported-by-the-wearable-cardioverter-defibrillator-the-prolong-study
#3
David Duncker, Thorben König, Stephan Hohmann, Johann Bauersachs, Christian Veltmann
BACKGROUND: Optimal timing of implantation of an implantable cardioverter/defibrillator (ICD) after newly diagnosed heart failure is unclear given that late reverse remodelling may occur. We aimed to analyze left ventricular ejection fraction (LVEF) after diagnosis of an LVEF ≤35% during optimization of heart failure drug therapy. METHODS AND RESULTS: One hundred fifty-six patients with newly diagnosed LVEF ≤35% receiving a wearable cardioverter/defibrillator (WCD) were analyzed...
January 17, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28089072/the-role-of-implantable-cardioverter-defibrillators-in-patients-bridged-to-transplantation-with-a-continuous-flow-left-ventricular-assist-device-a-propensity-score-matched-analysis
#4
Kevin J Clerkin, Veli K Topkara, Donna M Mancini, Melana Yuzefpolskaya, Ryan T Demmer, Jose M Dizon, Koji Takeda, Hiroo Takayama, Yoshifumi Naka, Paolo C Colombo, A Reshad Garan
BACKGROUND: Implantable cardioverter defibrillators (ICDs) provide a significant mortality benefit for appropriately selected patients with advanced heart failure. ICDs are associated with a mortality benefit when used in patients with a pulsatile left ventricular assist device (LVAD). It is unclear whether patients with a continuous-flow LVAD (CF-LVAD) derive the same benefit. We sought to determine if the presence of an ICD provided a mortality benefit during CF-LVAD support as a bridge to transplantation...
December 1, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28088306/ventricular-fibrillation-occurring-after-atrioventricular-node-ablation-despite-minimal-difference-between-pre-and-post-ablation-heart-rates
#5
F Squara, G Theodore, D Scarlatti, E Ferrari
We report the case of an 82-year-old man presenting with ventricular fibrillation (VF) occurring acutely after atrioventricular node (AVN) ablation. This patient had severe valvular cardiomyopathy, chronic atrial fibrillation (AF), and underwent prior to the AVN ablation a biventricular implantable cardiac defibrillator positioning. The VF was successfully cardioverted with one external electrical shock. What makes this presentation original is that the pre-ablation spontaneous heart rate in AF was slow (84 bpm), and that VF occurred after ablation despite a minimal heart rate drop of only 14 bpm...
January 11, 2017: Annales de Cardiologie et D'angéiologie
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
#6
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/28079553/end-of-life-decisions-in-heart-failure-to-turn-off-the-intracardiac-device-or-not
#7
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
#8
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/28077815/the-j-wave-as-a-predictor-of-life-threatening-arrhythmia-in-icd-patients
#9
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
#10
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
#11
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
#12
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
#13
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/28065904/increasing-sex-differences-in-the-use-of-cardiac-resynchronization-therapy-with-or-without-implantable-cardioverter-defibrillator
#14
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
#15
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
#16
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/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
#17
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/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
#18
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
https://www.readbyqxmd.com/read/28048561/su-f-t-452-influence-of-dose-calculation-algorithm-and-heterogeneity-correction-on-risk-categorization-of-patients-with-cardiac-implanted-electronic-devices-undergoing-radiotherapy
#19
P Iwai, L Nadler Lins
PURPOSE: There is a lack of studies with significant cohort data about patients using pacemaker (PM), implanted cardioverter defibrillator (ICD) or cardiac resynchronization therapy (CRT) device undergoing radiotherapy. There is no literature comparing the cumulative doses delivered to those cardiac implanted electronic devices (CIED) calculated by different algorithms neither studies comparing doses with heterogeneity correction or not. The aim of this study was to evaluate the influence of the algorithms Pencil Beam Convolution (PBC), Analytical Anisotropic Algorithm (AAA) and Acuros XB (AXB) as well as heterogeneity correction on risk categorization of patients...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045761/the-selective-late-sodium-current-inhibitor-eleclazine-unlike-amiodarone-does-not-alter-defibrillation-threshold-or-dominant-frequency-of-ventricular-fibrillation
#20
Ana F G Silva, Rodolfo Bonatti, Julio Batatinha, Bruce D Nearing, Dewan Zeng, Luiz Belardinelli, Richard L Verrier
INTRODUCTION: We examined effects of the selective late INa inhibitor eleclazine on the 50% probability of successful defibrillation (DFT50) before and after administration of amiodarone to determine its suitability for use in patients with implantable cardioverter-defibrillators (ICDs). METHODS AND RESULTS: In 20 anesthetized pigs, transvenous active-fixation cardiac defibrillation leads were fluoroscopically positioned into right ventricular apex via jugular vein...
December 28, 2016: Journal of Cardiovascular Pharmacology
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