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Cardioverter defibrillator

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https://www.readbyqxmd.com/read/29028784/manufacturer-change-and-risk-of-system-related-complications-after-implantable-cardioverter-defibrillator-replacement-physicians-survey-and-data-from-the-detect-long-term-complications-after-implantable-cardioverter-defibrillator-replacement-registry
#1
Mauro Biffi, Endrj Menardi, Maria L Narducci, Ernesto Ammendola, Loredana Messano, Fabrizio Giofrè, Claudia Baiocchi, Davide Saporito, Fabio Lissoni, Matteo Bertini, Attilio Pierantozzi, Gianluca Zingarini, Maurizio Malacrida, Matteo Ziacchi
AIMS: Some barriers seem to exist in changing implantable cardioverter defibrillator (ICD) manufacturer at the time of device replacement. We sought to understand the obstacles to changing ICD manufacturer within the cohort of patients enrolled in the Detect Long-term Complications After ICD Replacement Registry. METHODS: We analyzed 784 consecutive ICD/cardiac resynchronization therapy defibrillator (CRT-D) device replacements within a 1.5-year time-frame in 36 Italian centers to evaluate potential factors associated with changing manufacturers and system-related complications...
October 11, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/29025556/patients-with-brugada-syndrome-and-implanted-cardioverter-defibrillators-long-term-follow-up
#2
Jaime Hernandez-Ojeda, Elena Arbelo, Roger Borras, Paola Berne, Jose M Tolosana, Andrea Gomez-Juanatey, Antonio Berruezo, Oscar Campuzano, Georgia Sarquella-Brugada, Lluis Mont, Ramon Brugada, Josep Brugada
BACKGROUND: Implantable cardioverter-defibrillator (ICD) indications for primary prevention in Brugada syndrome (BrS) are still debated. OBJECTIVES: The authors investigated the long-term outcome after ICD implantation in a large cohort of BrS patients. METHODS: Of a total of 370 patients with BrS in follow-up (age 43 ± 14 years; 74% male), 104 patients (28.1%) were treated with ICDs. The authors analyzed the long-term incidence of shocks and complications...
October 17, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29025554/cardiac-mr-with-late-gadolinium-enhancement-in-acute-myocarditis-with%C3%A2-preserved-systolic-function-itamy-study
#3
Giovanni Donato Aquaro, Matteo Perfetti, Giovanni Camastra, Lorenzo Monti, Santo Dellegrottaglie, Claudio Moro, Alessia Pepe, Giancarlo Todiere, Chiara Lanzillo, Alessandra Scatteia, Mauro Di Roma, Gianluca Pontone, Martina Perazzolo Marra, Andrea Barison, Gianluca Di Bella
BACKGROUND: The prognostic role of cardiac magnetic resonance (CMR) and late gadolinium enhancement (LGE) has not been clarified in acute myocarditis (AM) with preserved left ventricular (LV) ejection fraction (EF). OBJECTIVES: This study sought to evaluate the role of CMR and LGE in the prognosis of AM with preserved LVEF. METHODS: This study analyzed data from ITAMY (ITalian multicenter study on Acute MYocarditis) and evaluated CMR results from 386 patients (299 male; mean age 35 ± 15 years) with AM and preserved LVEF...
October 17, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29021865/minimally-invasive-pericardial-implantable-cardioverter-defibrillator-placement-in-a-young-child
#4
Wakana Maki, Hiroko Asakai, Kazuhiro Shiraga, Takahiro Shindo, Yoichiro Hirata, Ryo Inuzuka, Yasutaka Hirata, Akira Oka
We report the successful minimally invasive placement of a pericardial implantable cardioverter-defibrillator (ICD) in a 16-kg child. A transvenous ICD dual coil was advanced through a small subxiphoid incision and screwed into the oblique sinus pericardium under fluoroscopic guidance. An additional sense-pace lead was sutured onto the right ventricular apex, and the generator was placed in the upper abdominal wall through the same incision. Threshold testing demonstrated successful defibrillation at 15 J...
October 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/29021862/adaptive-cardiac-resynchronization-therapy-for-dilated-cardiomyopathy-with-functional-mitral-regurgitation
#5
Yoshiki Nagata, Yoichiro Nakagawa, Yusuke Takeda, Kenji Emoto, Masaki Kinoshita, Akio Chikata, Michiro Maruyama, Kazuo Usuda
We report the case of a man in his 60s who had dilated cardiomyopathy with severe functional mitral regurgitation. Four years after a cardiac resynchronization therapy (CRT) device with an implantable cardioverter defibrillator was implanted, this device was replaced with an adaptive CRT device because of battery consumption. Seven months after replacement of this device, the left ventricular pacing to right ventricular activation and the atrioventricular delay from automatic adjustments contributed to less functional mitral regurgitation...
October 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/29021858/landiolol-suppression-of-electrical-storm-of-torsades-de-pointes-in-patients-with-congenital-long-qt-syndrome-type-2-and-myocardial-ischemia
#6
Ryota Kitajima, Takeshi Aiba, Tsukasa Kamakura, Kohei Ishibashi, Mitsuru Wada, Yuko Inoue, Koji Miyamoto, Hideo Okamura, Takashi Noda, Satoshi Nagase, Yu Kataoka, Yasuhide Asaumi, Teruo Noguchi, Satoshi Yasuda, Kengo Kusano
A 76-year-old man who had been diagnosed with long-QT syndrome type 2 had frequent syncopal attacks. The electrocardiogram was monitored, and frequent torsades de pointes (TdP) was detected despite administration of conventional medications: oral propranolol, verapamil, intravenous magnesium sulfate, verapamil, and lidocaine. In contrast, 2 μg/kg/min landiolol could completely suppress TdP. Subsequently, an implantable cardioverter defibrillator was placed, and he was diagnosed with silent myocardial ischemia using myocardial perfusion scintigraphy and coronary angiography...
October 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/29021851/cardiac-troponin-t-as-a-predictor-of-cardiac-death-in-patients-with-left-ventricular-dysfunction
#7
Hironori Nakamura, Shinichi Niwano, Hidehira Fukaya, Masami Murakami, Jun Kishihara, Akira Satoh, Tomoharu Yoshizawa, Jun Oikawa, Naruya Ishizue, Tazuru Igarashi, Tamami Fujiishi, Junya Ako
BACKGROUND: Cardiac troponin T (cTnT) has been reported to be associated with cardiac mortality. In the present study, we evaluated the role of routine assessment of cTnT as a predictor of future cardiac death in patients with left ventricular (LV) dysfunction. METHODS: Patients who were eligible for prophylactic implantable cardioverter defibrillator (ICD) were included from cardiac catheterization database. Inclusion criteria were patients with LV ejection fraction of ≤ 35% and with New York Heart Association (NYHA) ≥class II...
October 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/29021850/long-term-survival-of-implantable-cardioverter-defibrillator-recipients-with-end-stage-renal-disease
#8
Mikhael F El-Chami, Lea Matar, Paige Smith, Mary Casey, Maher A Addish, Kimberly Kelly, Carolyn Wood, John Merlino, Abhinav Goyal, Angel R Leon, Faisal M Merchant
BACKGROUND: The efficacy of implantable cardioverter-defibrillators (ICD) for primary prevention of sudden cardiac death (SCD) has not been studied in patients with end-stage renal disease (ESRD) and left ventricular dysfunction. We sought to identify predictors of long-term survival among ICD recipients with and without ESRD. METHODS: Patients implanted with an ICD at our institution from January 2006 to March 2014 were retrospectively identified. Clinical and demographic characteristics were collected...
October 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/29021842/cardiac-resynchronization-therapy-in-ischemic-and-non-ischemic-cardiomyopathy
#9
REVIEW
Hisashi Yokoshiki, Hirofumi Mitsuyama, Masaya Watanabe, Takeshi Mitsuhashi, Akihiko Shimizu
Cardiac resynchronization therapy (CRT) using a biventricular pacing system has been an effective therapeutic strategy in patients with symptomatic heart failure with a reduced left ventricular ejection fraction (LVEF) of 35% or less and a QRS duration of 130 ms or more. The etiology of heart failure can be classified as either ischemic or non-ischemic cardiomyopathy. Ischemic etiology of patients receiving CRT is prevalent predominantly in North America, moderately in Europe, and less so in Japan. CRT reduces mortality similarly in both ischemic and non-ischemic cardiomyopathy, whereas reverse structural left ventricular remodeling occurs more favorably in non-ischemic cardiomyopathy...
October 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/29020984/fully-digital-data-processing-during-cardiovascular-implantable-electronic-device-follow-up-in-a-high-volume-tertiary-center
#10
Ingo Staudacher, Asha Roy Nalpathamkalam, Lorenz Uhlmann, Claudius Illg, Sebastian Seehausen, Mohammadreza Akhavanpoor, Anke Buchauer, Nicolas Geis, Patrick Lugenbiel, Patrick A Schweizer, Panagiotis Xynogalos, Maura M Zylla, Eberhard Scholz, Edgar Zitron, Hugo A Katus, Dierk Thomas
BACKGROUND: Increasing numbers of patients with cardiovascular implantable electronic devices (CIEDs) and limited follow-up capacities highlight unmet challenges in clinical electrophysiology. Integrated software (MediConnect(®)) enabling fully digital processing of device interrogation data has been commercially developed to facilitate follow-up visits. We sought to assess feasibility of fully digital data processing (FDDP) during ambulatory device follow-up in a high-volume tertiary hospital to provide guidance for future users of FDDP software...
October 11, 2017: European Journal of Medical Research
https://www.readbyqxmd.com/read/29018520/prophylactic-catheter-ablation-for-ventricular-tachycardia-are-we-there-yet
#11
Rahul K Mukherjee, Louisa O'Neill, Mark D O'Neill
Ventricular tachycardia (VT), often degenerating into ventricular fibrillation, is the leading cause of sudden cardiac death. Catheter ablation of VT is associated with relatively low, long-term success rates, while the optimal timing of ablation in patients with ischaemic and non-ischaemic cardiomyopathy remains unclear. Contemporary practice in most centres is to consider ablation late in the disease process following the failure of anti-arrhythmic medications and/or following recurrent implantable cardioverter-defibrillator shocks...
August 2017: Arrhythmia & Electrophysiology Review
https://www.readbyqxmd.com/read/29018006/%C3%AE-galactosidase-a-genotype-n215s-induces-a-specific-cardiac-variant-of-fabry-disease
#12
Daniel Oder, Dan Liu, Kai Hu, Nurcan Üçeyler, Tim Salinger, Jonas Müntze, Kristina Lorenz, Reinhard Kandolf, Hermann-Josef Gröne, Claudia Sommer, Georg Ertl, Christoph Wanner, Peter Nordbeck
BACKGROUND: Hypertrophic cardiomyopathy is the most common type of cardiomyopathy, but many patients lack sarcomeric/myofilament mutations. We studied whether cardio-specific α-galactosidase A gene variants are misinterpreted as hypertrophic cardiomyopathy because of the lack of extracardiac organ involvement. METHODS AND RESULTS: All subjects who tested positive for the N215S genotype (n=26, 13 females, mean age 49±17 [range, 14-74] years) were characterized in this prospective monocentric longitudinal cohort study to determine genotype-specific clinical characteristics of the N215S (c...
October 2017: Circulation. Cardiovascular Genetics
https://www.readbyqxmd.com/read/29017930/cardiac-magnetic-resonance-imaging-using-wideband-sequences-in-patients-with-non-conditional-cardiac-implanted-electronic-devices
#13
Duc H Do, Vaughn Eyvazian, Aileen J Bayoneta, Peng Hu, J Paul Finn, Jason S Bradfield, Kalyanam Shivkumar, Noel G Boyle
BACKGROUND: Magnetic resonance imaging (MRI) has been performed safely in patients without MRI-conditional cardiac implantable electronic devices (CIED), but experience specifically with cardiac magnetic resonance imaging (CMR) is limited in this patient population. OBJECTIVE: Evaluate the safety of CMR in non-MRI-conditional CIED and the interpretability of images using wideband sequences. METHODS: We performed 114 consecutive CMR studies in 111 patients (mean age 59±14 years with 12 pacemakers, 73 implantable cardioverter defibrillators, 29 biventricular defibrillators) utilizing a wideband pulse sequence for late gadolinium enhancement (LGE) imaging...
October 7, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29017928/the-implantable-cardioverter-defibrillator-computed-respiratory-disturbance-index-accurately-identifies-severe-sleep-apnea-the-dasap-hf-study
#14
Antonio D'Onofrio, Maria Teresa La Rovere, Michele Emdin, Alessandro Capucci, Gianfranco Sinagra, Valter Bianchi, Ennio Pisanò, Paolo Pieragnoli, Maurizio Tespili, Mario Luzi, Antonello Talarico, Massimo Zecchin, Antonio Rapacciuolo, PhD Marcello Piacenti, Ciro Indolfi, Miguel Angel Arias, Igor Diemberger, Catia Checchinato, Giuseppe Boriani, Luigi Padeletti
BACKGROUND: Sleep apnea (SA) is a relevant issue in the management of heart failure patients for risk stratification and for implementing treatment strategies. OBJECTIVE: To evaluate in patients with implantable cardioverter defibrillators (ICDs) the performance of the Respiratory Disturbance Index (RDI) computed by the ApneaScan™ algorithm (Boston Scientific Inc., Natick, MA, USA), as a discriminator of severe SA. METHODS: ICD indicated patients with left ventricular ejection fraction ≤35% were enrolled...
October 7, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29016986/retained-pacemaker-and-implantable-cardioverter-defibrillator-components-after-heart-transplantation-are-common-and-may-lead-to-adverse-events
#15
Stephen J Pettit, Mateusz Orzalkiewicz, Muhammad A Nawaz, Clive Lewis, Jayan Parameshwar, Steven Tsui
Aims: Many patients have a cardiac implantable electronic device (CIED) extracted at the time of heart transplantation. CIED components may be retained after heart transplantation, but their frequency, nature, and clinical significance is uncertain. Methods and results: Consecutive patients that underwent heart transplantation over 10 years from 1 January 2007 until 1 January 2017 were identified from the unit database. Pre- and post-operative chest radiographs were reviewed by two independent observers for the presence of CIED components...
July 19, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29016960/validation-of-the-hcm-risk-scd-model-in-patients-with-hypertrophic-cardiomyopathy-following-alcohol-septal-ablation
#16
Max Liebregts, Lothar Faber, Morten K Jensen, Pieter A Vriesendorp, Peter R Hansen, Hubert Seggewiss, Dieter Horstkotte, Radka Adlova, Michelle Michels, Henning Bundgaard, Jurriën M Ten Berg, Josef Veselka
Aims: The HCM Risk-SCD model for prediction of sudden cardiac death (SCD) in hypertrophic cardiomyopathy recommended by the 2014 European Society of Cardiology (ESC) guidelines has not been validated after septal reduction therapy. The aim of this study was to validate the HCM Risk-SCD model in patients undergoing alcohol septal ablation (ASA) and to compare its performance to previous models. Methods and result: A total of 844 ASA patients without prior SCD event were included...
September 18, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29016950/hypersensitivity-to-material-and-environmental-burden-as-a-possible-cause-of-late-complications-of-cardiac-implantable-electronic-devices
#17
Jan Manoušek, Irena Andršová, Vera Stejskal, Jitka Vlašínová, Milan Sepši, Jan Kuta, Jana Klánová, Michal Mazík, Jirí Jarkovský, Lenka Šnajdrová, Klára Benešová, Tomáš Novotný, Andrea Zadáková, Jindrich Špinar
Aims: To evaluate whether patients with late complications of pacemakers or implantable cardioverter-defibrillators have hypersensitivity reactions to some of the materials used in generators or in electrodes, or to environmental metal burden. Methods and results: The cohort consisted of 20 men and 4 women (mean age: 62.3 ± 17.2 years) who had a history of late complications of implanted devices. The control group involved 25 men and 8 women (mean age: 64...
August 2, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29016907/clinical-value-of-different-qrs-t-angle-expressions
#18
Katerina Hnatkova, Joachim Seegers, Petra Barthel, Tomas Novotny, Peter Smetana, Markus Zabel, Georg Schmidt, Marek Malik
Aims: Increased spatial angle between QRS complex and T wave loop orientations has repeatedly been shown to predict cardiac risk. However, there is no consensus on the methods for the calculation of the angle. This study compared the reproducibility and predictive power of three most common ways of QRS-T angle assessment. Methods and results: Electrocardiograms of 352 healthy subjects, 941 survivors of acute myocardial infarction (MI), and 605 patients recorded prior to the implantation of automatic defibrillator [implantable cardioverter defibrillator (ICD)] were used to obtain QRS-T angle measurements by the maximum R to T (MRT), area R to T (ART), and total cosine R to T (TCRT) methods...
September 13, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29016878/automatic-remote-monitoring-utilizing-daily-transmissions-transmission-reliability-and-implantable-cardioverter-defibrillator-battery-longevity-in-the-trust-trial
#19
Niraj Varma, Charles J Love, Robert Schweikert, Philip Moll, Justin Michalski, Andrew E Epstein
Aims: Benefits of automatic remote home monitoring (HM) among implantable cardioverter defibrillator (ICD) patients may require high transmission frequency. However, transmission reliability and effects on battery longevity remain uncertain. We hypothesized that HM would have high transmission success permitting punctual guideline based follow-up, and improve battery longevity. This was tested in the prospective randomized TRUST trial. Methods and results: Implantable cardioverter defibrillator patients were randomized post-implant 2:1 to HM (n = 908) (transmit daily) or to Conventional in-person monitoring [conventional management (CM), n = 431 (HM disabled)]...
May 10, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29016821/super-response-to-cardiac-resynchronization-therapy-reduces-appropriate-implantable-cardioverter-defibrillator-therapy
#20
Ammar M Killu, Anna Mazo, Avishay Grupper, Malini Madhavan, Tracy Webster, Kelly L Brooke, David O Hodge, Samuel J Asirvatham, Paul A Friedman, Michael Glikson, Yong-Mei Cha
Aims: To determine the frequency of implantable cardioverter defibrillator (ICD) therapy following cardiac resynchronization therapy (CRT-D) implantation in super and non-super responders and whether greater improvement in left ventricular (LV) function after CRT is associated with a reduced burden in ICD therapy. Methods and results: This is a two-centre, retrospective study between January 2002 and September 2011. Patients were classified as non-super responders and super-responders based on the post-CRT ejection fraction (EF) of < 50% and ≥50%, respectively...
August 4, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
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