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https://www.readbyqxmd.com/read/28289531/critical-analysis-of-ineffective-post-implantation-implantable-cardioverter-defibrillator-testing
#1
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/28229200/-current-impact-of-cardiac-implantable-electronic-devices
#2
J Kuschyk, B Rudic, M Borggrefe, I Akin
Sudden cardiac death and chronic heart failure are among the main contributors to persisting high mortality rates in Germany. In addition to removal of causal factors and guideline-conform pharmacological therapy, therapy with cardiac implantable electronic devices (CIED) is of undisputed importance. Subcutaneous defibrillators have the advantage that they do not have intracardiac electrodes but still have the same efficacy and safety. For patients with a wide QRS complex and reduced ejection fraction, cardiac resynchronization has led to a reduction of morbidity and mortality...
February 22, 2017: Herz
https://www.readbyqxmd.com/read/28217234/inappropriate-shocks-from-a-subcutaneous-implantable-cardioverter-defibrillator-due-to-oversensing-during-periods-of-rate-related-bundle-branch-block
#3
Maria João Sousa, Tim Betts
The subcutaneous implantable cardioverter-defibrillator (S-ICD) is a novel technology with proven efficacy in sudden cardiac death prevention; however, there is a lack of long-term safety data. We describe the case of a 55-year-old female patient implanted with an S-ICD due to idiopathic ventricular fibrillation, who subsequently presented with inappropriate shocks leading to ventricular fibrillation that was successfully terminated by another shock. Inappropriate shocks were due to intermittent T wave oversensing during periods of rate-dependent right bundle branch block...
February 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28217231/successful-intermuscular-implantation-of-subcutaneous-implantable-cardioverter-defibrillator-in-a-japanese-patient-with-pectus-excavatum
#4
Yusuke Kondo, Marehiko Ueda, Joachim Winter, Miyo Nakano, Masahiro Nakano, Masayuki Ishimura, Kazuo Miyazawa, Kaoru Tateno, Yoshio Kobayashi
The entirely subcutaneous implantable cardioverter-defibrillator (ICD) system was developed to provide a life-saving defibrillation therapy that does not affect the heart and vasculature. The subcutaneous ICD is preferred over the transvenous ICD for patients with a history of recurrent infection presenting major life-threatening rhythms. In this case report, we describe the first successful intermuscular implantation of a completely subcutaneous ICD in a Japanese patient with pectus excavatum. There were no associated complications with the device implantation or lead positioning...
February 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28185354/eligibility-of-pacemaker-patients-for-subcutaneous-implantable-cardioverter-defibrillators
#5
James E Ip, Michael S Wu, Peter J Kennel, George Thomas, Christopher F Liu, Jim W Cheung, Steven M Markowitz, Bruce B Lerman
INTRODUCTION: The subcutaneous implantable cardioverter defibrillator (ICD) has emerged as a viable therapeutic option for patients who are deemed high risk for sudden cardiac death. Previous studies have shown that 7-15% of patients are not candidates for the S-ICD based on their intrinsic QRS/T-wave morphology. Presently, it is not known if the S-ICD can be considered as supplementary therapy in patients who are ventricularly paced. We sought to determine the proportion of ventricularly paced patients who would qualify for an S-ICD...
February 10, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28185283/discrimination-between-qrs-and-t-waves-using-a-right-parasternal-lead-for-s-icd-in-a-patient-with-a-single-ventricle
#6
Takahiko Nishiyama, Takehiro Kimura, Nobuhiro Nishiyama, Yoshiyasu Aizawa, Keiichi Fukuda, Seiji Takatsuki
The subcutaneous implantable cardioverter-defibrillator (S-ICD) is a useful option for patients with a single ventricle (SV) in which transvenous leads are contraindicated because of intracardiac shunts. We report a case in which a right parasternal lead placement was indicated for an S-ICD in a resuscitated patient with an SV. There were significant changes in the magnitude of R to T waves ratio in the right compared to left parasternal lead position. Screening in the right parasternal position is effective for selecting appropriate patients with CHD for S-ICD implantations...
February 9, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28185079/-a%C3%A2-life-saving-shock-from-a%C3%A2-subcutaneous-icd-during-skydiving
#7
Stefan Baumann, Susanne Roeger, Tobias Becher, Ibrahim Akin, Martin Borggrefe, Juergen Kuschyk
We report the case of a 38-year-old man who was implanted a subcutaneous implantable cardioverter-defibrillator (S-ICD) and then performed a skydive from a height of 3000 m. During the jump, he lost consciousness due to ventricular fibrillation (VF). The S‑ICD detected the VF properly and successfully shocked the arrhythmia. Our illustrative case emphasizes the S‑ICD as an appropriate therapy in patient with life-threatening arrhythmias even under extreme conditions.
February 9, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28182232/the-subcutaneous-implantable-cardioverter-defibrillator
#8
Jan Steffel
No abstract text is available yet for this article.
January 21, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28182222/the-subcutaneous-implantable-cardioverter-defibrillator-state-of-the-art-review
#9
Christopher J McLeod, Lucas Boersma, Hideo Okamura, Paul A Friedman
No abstract text is available yet for this article.
January 21, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28163146/the-subcutaneous-icd-as-an-alternative-to-the-conventional-icd-system-initial-experience-in-greece-and-review-of-the-literature
#10
REVIEW
Skevos Sideris, Stefanos Archontakis, Konstantinos A Gatzoulis, Aristotelis Anastasakis, Ilias Sotiropoulos, Petros Arsenos, Alexandros Kasiakogias, Dimitrios Terentes, Konstantinos Trachanas, Eleftherios Paschalidis, Dimitrios Tousoulis, Ioannis Kallikazaros
The introduction of the implantable cardioverter defibrillator (ICD) in clinical practice has revolutionized our therapeutic approach for sudden cardiac death (SCD) both in the context of primary and secondary prevention, since it has proven to be superior to medical therapy in treating potentially life-threatening ventricular arrhythmias, resulting in reduced mortality rates. However, conventional ICDs' implantation carries a not negligible risk of periprocedural and long-term complications associated with the transvenous ICD leads...
February 2, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28148576/lead-or-be-led-an-update-on-leadless-cardiac-devices-for-general-physicians
#11
Benedict M Wiles, Paul R Roberts
Implantable cardiac devices have an increasingly important role. Pacemakers remain the only effective treatment for symptomatic bradycardia; cardiac resynchronisation therapy is a proven treatment for heart failure; and implantable cardioverter defibrillators (ICD) are superior to medical therapy in prevention of sudden cardiac death. Our ageing population has led to a rising number of device implants. Physicians in all specialties increasingly encounter patients with cardiac devices and require an understanding of their capabilities and functions...
February 2017: Clinical Medicine: Journal of the Royal College of Physicians of London
https://www.readbyqxmd.com/read/28073910/implantation-of-the-subcutaneous-implantable-cardioverter-defibrillator-an-evaluation-of-4-implantation-techniques
#12
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/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)...
March 15, 2017: International Journal of Cardiology
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
#14
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
https://www.readbyqxmd.com/read/28034580/canadian-cardiovascular-society-canadian-heart-rhythm-society-2016-implantable-cardioverter-defibrillator-guidelines
#15
Matthew Bennett, Ratika Parkash, Pablo Nery, Mario Sénéchal, Blandine Mondesert, David Birnie, Laurence D Sterns, Claus Rinne, Derek Exner, François Philippon, Debra Campbell, Jafna Cox, Paul Dorian, Vidal Essebag, Andrew Krahn, Jaimie Manlucu, Franck Molin, Michael Slawnych, Mario Talajic
Sudden cardiac death is a major public health issue in Canada. However, despite the overwhelming evidence to support the use of implantable cardioverter defibrillators (ICDs) in the prevention of cardiac death there remains significant variability in implantation rates across Canada. Since the most recent Canadian Cardiovascular Society position statement on ICD use in Canada in 2005, there has been a plethora of new scientific information to assist physicians in their discussions with patients considered for ICD implantation to prevent sudden cardiac death due to ventricular arrhythmias...
February 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28034575/complete-right-bundle-branch-block-and-qrs-t-discordance-can-be-the-initial-clue-to-detect-s-icd-ineligibility
#16
Motomi Tachibana, Nobuhiro Nishii, Yoshimasa Morimoto, Satoshi Kawada, Akihito Miyoshi, Hiroyasu Sugiyama, Koji Nakagawa, Atsuyuki Watanabe, Kazufumi Nakamura, Hiroshi Morita, Hiroshi Ito
BACKGROUND: In order to minimize inappropriate shocks of subcutaneous implantable cardioverter-defibrillators (S-ICD), it is important to recognize who is suitable for S-ICD indication. This study aimed to clarify what types of cardiac disease are likely to fulfill the S-ICD screening criteria and ineligible factors for S-ICD in the standard 12-lead electrocardiogram (ECG). METHODS: A total of 348 patients with heart disease were enrolled. They were assessed by supine and standing ECG recording to simulate the 3 S-ICD sensing vectors and standard 12-lead ECG, simultaneously...
December 26, 2016: Journal of Cardiology
https://www.readbyqxmd.com/read/28011803/the-italian-subcutaneous-implantable-cardioverter-defibrillator-survey-s-icd-why-not
#17
Giovanni Luca Botto, Giovanni B Forleo, Alessandro Capucci, Francesco Solimene, Antonello Vado, Giovanni Bertero, Pietro Palmisano, Ennio Pisanò, Antonio Rapacciuolo, Tommaso Infusino, Alessandro Vicentini, Miguel Viscusi, Paola Ferrari, Antonello Talarico, Giovanni Russo, Giuseppe Boriani, Luigi Padeletti, Mariolina Lovecchio, Sergio Valsecchi, Antonio D'Onofrio
AIMS: A recommendation for a subcutaneous-implantable cardioverter-defibrillator (S-ICD) has been added to recent European Society of Cardiology Guidelines. However, the S-ICD is not ideally suitable for patients who need pacing. The aim of this survey was to analyse the current practice of ICD implantation and to evaluate the actual suitability of S-ICD. METHODS AND RESULTS: The survey 'S-ICD Why Not?' was an independent initiative taken by the Italian Heart Rhythm Society (AIAC)...
December 23, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28007749/intermuscular-technique-for-implantation-of-the-subcutaneous-implantable-cardioverter-defibrillator-long-term-performance-and-complications
#18
Joachim Winter, Markus Siekiera, Dong-In Shin, Christian Meyer, Patric Kröpil, Harald Clahsen, Stephen O'Connor
AIMS: The subcutaneous cardioverter defibrillator was designed to overcome electrode complications of transvenous defibrillation systems. While largely achieved, pocket complications have increased. Subcutaneous implantation of the pulse generator leaves it prone to erosion, extrusion, discomfort, and poor cosmesis. METHODS AND RESULTS: We use a demonstration electrode and pulse generator with fluoroscopy, prior to prepping and draping, to maximize the left ventricular mass between them...
December 22, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27943358/intermuscular-two-incision-technique-for-subcutaneous-implantable-cardioverter-defibrillator-implantation-results-from-a-multicenter-registry
#19
Federico Migliore, Giuseppe Allocca, Vittorio Calzolari, Martino Crosato, Domenico Facchin, Elisabetta Daleffe, Massimo Zecchin, Mauro Fantinel, Sergio Cannas, Rocco Arancio, Procolo Marchese, Francesco Zanon, Alessandro Zorzi, Sabino Iliceto, Emanuele Bertaglia
BACKGROUND: The traditional technique for subcutaneous implantable cardioverter defibrillator (S-ICD) implantation, which involves three incisions and a subcutaneous pocket, is associated with possible complications, including inappropriate interventions. The aim of this prospective multicenter study was to evaluate the efficacy and safety of an alternative intermuscular two-incision technique for S-ICD implantation. METHODS: The study population included 36 consecutive patients (75% male, mean age 44 ± 12 years [range 20-69]) who underwent S-ICD implantation using the intermuscular two-incision technique...
March 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/27943348/the-design-of-the-understanding-outcomes-with-the-s-icd-in-primary-prevention-patients-with-low-ef-study-untouched
#20
MULTICENTER STUDY
Michael R Gold, Reinoud Knops, Martin C Burke, Pier D Lambiase, Andrea M Russo, Maria Grazia Bongiorni, Jean-Claude Deharo, Johan Aasbo, Mikhael F El Chami, Michael Husby, Nathan Carter, Lucas Boersma
BACKGROUND: The UNTOUCHED study will assess the safety and efficacy of the subcutaneous implantable cardioverter defibrillator (S-ICD) in the most common cohort of patients receiving ICDs. The primary goal is to evaluate the inappropriate shock (IAS)-free rate in primary prevention patients with a reduced ejection fraction (EF) and compare with a historical control of transvenous ICD patients with similar programming. METHODS AND RESULTS: The UNTOUCHED study is a global, multicenter, prospective, nonrandomized study of patients undergoing de novo S-ICD implantation for primary prevention of sudden cardiac death with a left ventricular EF ≤35%...
January 2017: Pacing and Clinical Electrophysiology: PACE
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