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Implantable cardioverter

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https://www.readbyqxmd.com/read/28641397/myocardial-scar-location-as-detected-by-cardiac-magnetic-resonance-is-associated-with-the-outcome-in-heart-failure-patients-undergoing-surgical-ventricular-reconstruction
#1
Serenella Castelvecchio, Giulia Careri, Federico Ambrogi, Antonia Camporeale, Lorenzo Menicanti, Francesco Secchi, Massimo Lombardi
OBJECTIVES: Post-infarction myocardial scar causes adverse left ventricular remodelling and negatively affects the prognosis. We sought to investigate whether scar extent and location obtained by cardiac magnetic resonance may affect the reverse remodelling and survival of heart failure patients undergoing surgical ventricular reconstruction. METHODS: From January 2011 to December 2015, 151 consecutive patients with previous myocardial infarction and left ventricular remodelling underwent surgical ventricular reconstruction at our Institution, of which 88 (58%) patients had a preoperative protocol-standardized late gadolinium enhancement (LGE)-cardiac magnetic resonance examination during the week before surgery...
June 21, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28636098/repeated-procedures-at-the-generator-pocket-are-a-determinant-of-implantable-cardioverter-defibrillator-infection
#2
Eduardo Arana-Rueda, Alonso Pedrote, Manuel Frutos-López, Juan Acosta, Beatriz Jauregui, Lorena García-Riesco, Álvaro Arce-León, Federico Gómez-Pulido, Juan A Sánchez-Brotons, Encarnación Gutiérrez-Carretero, Arístides de Alarcón-González
BACKGROUND: Rates of cardiac-device infections have increased in recent years, but the current incidence and risk factors for infection in patients with implantable cardioverter-defibrillators (ICDs) are not well known. HYPOTHESIS: The increasing number of ICD infections is related to accumulated pocket manipulations over time. METHODS: This single-center, prospective study included patients that underwent ICD implantation from 2008 to 2015...
June 21, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28633728/bilateral-large-pneumothoraxes-following-implantable-cardioverter-defibrillator-generator-change-a-case-report-of-an-uncommon-event-complicating-a-common-procedure
#3
Ritin Bomb, Sunil K Jha
INTRODUCTION: A bilateral large spontaneous pneumothorax to our knowledge has never been reported after a device implantation. We report an unusual case of a patient developing spontaneous bilateral large pneumothoraxes after an implantable cardioverter-defibrillator generator and lead revision without evidence of any obvious traumatic cardiac injury. CASE PRESENTATION: A 79-year-old white man was scheduled for implantable cardioverter-defibrillator generator change and addition of an atrial lead...
2017: Permanente Journal
https://www.readbyqxmd.com/read/28633348/lifelong-arrhythmic-risk-stratification-in-arrhythmogenic-right-ventricular-cardiomyopathy-distribution-of-events-and-impact-of-periodical-reassessment
#4
Chiara Cappelletto, Davide Stolfo, Antonio De Luca, Bruno Pinamonti, Giulia Barbati, Alberto Pivetta, Marco Gobbo, Francesca Brun, Marco Merlo, Gianfranco Sinagra
Aims: The arrhythmic risk stratification of arrhythmogenic right ventricular cardiomyopathy (ARVC) remains controversial. We evaluated the long-term distribution of life-threatening arrhythmic events assessing the impact of periodical risk reassessment. Methods and results: Ninety-eight ARVC patients with no previous major ventricular arrhythmias were retrospectively analysed. Patients were assessed at baseline, at 22 [inter-quartile range (IQR) 16-26], 49 (IQR 41-55) and 97 months (IQR 90-108)...
June 13, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28632280/implantable-cardioverter-defibrillators-for-primary-prevention-in-patients-with-ischemic-or-nonischemic-cardiomyopathy-a-systematic-review-and-meta-analysis
#5
Michalina Kolodziejczak, Felicita Andreotti, Mariusz Kowalewski, Antonino Buffon, Marco Matteo Ciccone, Gianfranco Parati, Pietro Scicchitano, Julia M Uminska, Stefano De Servi, Kevin P Bliden, Jacek Kubica, Alessandro Bortone, Filippo Crea, Paul Gurbel, Eliano P Navarese
Background: Implantable cardioverter-defibrillators (ICDs) have a role in preventing cardiac arrest in patients at risk for life-threatening ventricular arrhythmias. Purpose: To compare ICD therapy with conventional care for the primary prevention of death of various causes in adults with ischemic or nonischemic cardiomyopathy. Data Sources: MEDLINE, Cochrane Central Register of Controlled Trials, Google Scholar, and EMBASE databases, as well as several Web sites, from 1 April 1976 through 31 March 2017...
June 27, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28630173/primary-prevention-of-sudden-cardiac-death-early-post-myocardial-infarction-root-cause-analysis-for-implantable-cardioverter-defibrillator-failure-and-currently-available-options
#6
REVIEW
Claude S Elayi, Richard J Charnigo, Paula M Heron, Byron K Lee, Jeffrey E Olgin
No abstract text is available yet for this article.
June 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28626201/survival-and-heart-failure-hospitalization-in-patients-with-cardiac-resynchronization-therapy-with-or-without-a-defibrillator-for-primary-prevention-in-japan%C3%A3-analysis-of-the-japan-cardiac-device-treatment-registry-database
#7
Hisashi Yokoshiki, Akihiko Shimizu, Takeshi Mitsuhashi, Hiroshi Furushima, Yukio Sekiguchi, Tetsuyuki Manaka, Nobuhiro Nishii, Takeshi Ueyama, Norishige Morita, Hideo Okamura, Takashi Nitta, Kenzo Hirao, Ken Okumura
BACKGROUND: Randomized control trials comparing the effectiveness of cardiac resynchronization therapy devices, with (CRT-D) or without (CRT-P) a defibrillator, are scarce in heart failure patients with no prior sustained ventricular tachyarrhythmias.Methods and Results:The Japan Cardiac Device Treatment Registry (JCDTR) has data for 2714 CRT-D and 555 CRT-P recipients for primary prevention with an implantation date between January 2011 and August 2015. Of these patients, follow-up data were available for 717...
June 13, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28625728/treatment-of-persistent-ventricular-tachycardia-drugs-or-ablation
#8
REVIEW
Ciorsti J MacIntyre, John L Sapp
Implantable cardioverter defibrillators (ICDs) reduce the mortality risk associated with recurrent ventricular tachycardia (VT) and can frequently terminate VT episodes painlessly, but do not prevent recurrent episodes. For patients with symptomatic recurrences, frequent asymptomatic recurrences, ICD shocks, or VT storm, most clinicians recommend strategies to suppress VT. The proarrhythmic mortality risk of antiarrhythmic drugs (AADs) may be mitigated by the presence of an ICD, but these medications are limited by high recurrence rates, and unfavorable side effect profiles...
May 10, 2017: Trends in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28625400/successful-treatment-of-ventricular-fibrillation-storm-triggered-by-short-long-short-sequence-time-to-avoid-managed-ventricular-pacing
#9
Hilmi Alnsasra, Yuval Konstantino, Sergiy Bereza, Moti Haim
Sudden cardiac death (SCD) in hypertrophic cardiomyopathy (HCM) is caused by ventricular tachyarrhythmia that can be effectively treated by implantable cardioverter defibrillator (ICD) therapy. We report of a 28-year-old man with HCM and a dual chamber ICD, originally implanted for primary prevention of SCD, (programmed to AAI(R)-DDD(R); managed ventricular pacing (MVP) mode, Medtronic Inc. St Paul, MN USA). He presented with recurrent ICD shocks due to ventricular fibrillation (VF) despite antiarrhythmic therapy...
June 8, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28625384/effects-of-implantable-cardioverter-defibrillator-shock-and-antitachycardia-pacing-on-anxiety-and-quality-of-life-a-madit-rit-substudy
#10
Alessandro Paoletti Perini, Valentina Kutyifa, Peter Veazie, James P Daubert, Claudio Schuger, Wojciech Zareba, Scott McNitt, Spencer Rosero, Christine Tompkins, Luigi Padeletti, Arthur J Moss
Effects of implantable cardioverter/defibrillator (ICD) shocks and antitachycardia pacing (ATP) on anxiety and quality of life (QoL) in ICD patients are poorly understood. METHODS: We evaluated changes in QoL from baseline to 9-month follow-up using the EQ-5D questionnaire in patients enrolled in the Multicenter Automatic Defibrillator Implantation Trial-Reduce Inappropriate Therapy (MADIT-RIT) (n=1,268). We assessed anxiety levels using the Florida Shock Anxiety Scale (1-10 score) in patients with appropriate or inappropriate shocks or ATP compared to those with no ICD therapy during the first 9 months postimplant...
July 2017: American Heart Journal
https://www.readbyqxmd.com/read/28625372/multicenter-automatic-defibrillator-implantation-trial-subcutaneous-implantable-cardioverter-defibrillator-madit-s-icd-design-and-clinical-protocol
#11
Valentina Kutyifa, Christopher Beck, Mary W Brown, David Cannom, James Daubert, Mark Estes, Henry Greenberg, Ilan Goldenberg, Stephen Hammes, David Huang, Helmut Klein, Reinoud Knops, Mikhail Kosiborod, Jeanne Poole, Claudio Schuger, Jagmeet P Singh, Scott Solomon, David Wilber, Wojciech Zareba, Arthur J Moss
Patients with diabetes mellitus, prior myocardial infarction, older age, and a relatively preserved left ventricular ejection fraction remain at risk for sudden cardiac death that is potentially amenable by the subcutaneous implantable cardioverter defibrillator with a good risk-benefit profile. The launched MADIT S-ICD study is designed to test the hypothesis that post-myocardial infarction diabetes patients with relatively preserved ejection fraction of 36%-50% will have a survival benefit from a subcutaneous implantable cardioverter defibrillator...
July 2017: American Heart Journal
https://www.readbyqxmd.com/read/28624663/role-of-exercise-electrocardiogram-to-screen-for-t-wave-oversensing-after-implantation-of-subcutaneous-implantable-cardioverter-defibrillator
#12
Muhammad R Afzal, Christopher Evenson, Auroa Badin, Dilesh Patel, Hemant Godara, Michael Essandoh, Toshimasa Okabe, Jaret Tyler, Mahmoud Houmsse, Ralph Augostini, John Hummel, Steven Kalbfleisch, Emile G Daoud, Raul Weiss
BACKGROUND: During early experience with subcutaneous implantable cardioverter defibrillator (S-ICD(TM)), several patients had inappropriate shocks from TWOS during exercise. This prompted some operators to perform routine treadmill exercise test after implantation of S-ICD to screen for TWOS. Meanwhile, improvements have been made in the detection algorithms by the manufacturer. OBJECTIVE: To assess whether routine treadmill exercise post S-ICD(TM) implantation is warranted...
June 14, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28623036/-arrhythmogenic-right-ventricular-cardiomyopathy-dysplasia-literature-review-and-case-report
#13
William Alejandro Camargo-Ariza, Silvia Juliana Galvis-Blanco, Tatiana Del Pilar Camacho-Enciso, Carlos Alberto Quiroz-Romero, Juan José Bermudez-Echeverry
Arrhythmogenic right ventricular cardiomyopathy/dysplasia is an inherited autosomal dominant pathology with an estimated prevalence of 1:2,500 to 1:5,000, being higher in males (3:1). It is characterized histologically by replacement of cardiomyocytes by fibro-adipose tissue, which predisposes to ventricular arrhythmias, right ventricular failure, and sudden cardiac death. The main goal of treatment is to reduce the risk of sudden death and improve the quality of life of patients. We present the case of a 23 year old woman whose clinical symptoms started with palpitations, chest pain with physical activity, syncope and headache 6 years ago during her first pregnancy...
June 13, 2017: Archivos de Cardiología de México
https://www.readbyqxmd.com/read/28618061/electrical-storm-in-a-patient-with-duchenne-muscular-dystrophy-cardiomyopathy-triggered-by-abrupt-%C3%AE-blocker-interruption
#14
Nikolaos Fragakis, Melani Sotiriadou, Lydia Krexi, Vassilios Vassilikos
We present a case of a young man with Duchenne muscular dystrophy cardiomyopathy (DMDC) having an implantable cardioverter defibrillator for secondary prevention, who presented with electrical storm shortly after β-blocker interruption. The patient was stabilized and remained free of ventricular arrhythmias soon after reinitiating b-adrenoreceptor antagonists. The present case highlights the importance of sympathetic blockage in patients with DMDC due to existing pathophysiology of excess diastolic Ca(2+) leak from sarcoplasmic reticulum as a result of ryanodine receptor dysfunction...
June 15, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28616729/prediction-of-the-estimated-5-year-risk-of-sudden-cardiac-death-and-syncope-or-non-sustained-ventricular-tachycardia-in-patients-with-hypertrophic-cardiomyopathy-using-late-gadolinium-enhancement-and-extracellular-volume-cmr
#15
Maxim Avanesov, Julia Münch, Julius Weinrich, Lennart Well, Dennis Säring, Christian Stehning, Enver Tahir, Sebastian Bohnen, Ulf K Radunski, Kai Muellerleile, Gerhard Adam, Monica Patten, Gunnar Lund
OBJECTIVES: To evaluate the ability of late gadolinium enhancement (LGE) and mapping cardiac magnetic resonance (CMR) including native T1 and global extracellular volume (ECV) to identify hypertrophic cardiomyopathy (HCM) patients at risk for sudden cardiac death (SCD) and to predict syncope or non-sustained ventricular tachycardia (VT). METHODS: A 1.5-T CMR was performed in 73 HCM patients and 16 controls. LGE size was quantified using the 3SD, 5SD and full width at half maximum (FWHM) method...
June 14, 2017: European Radiology
https://www.readbyqxmd.com/read/28614834/left-ventricular-mechanical-reverse-remodelling-not-followed-by-electrical-reverse-remodelling-a-case-report
#16
Sandra Amorim, Raquel Garcia, Teresa Pinho, João Rodrigues, Filipe Macedo, José Silva-Cardoso, M Júlia Maciel
Patients with severely depressed left ventricular ejection fractions (LVEFs) receive implantable cardioverter-defibrillators (ICDs) for the primary prevention of sudden death. However, in some patients, LVEFs may improve or even normalize over time, and these patients would no longer be qualified for ICD implantation based on the original criteria for which they have initially received an ICD. We report a patient with idiopathic dilated cardiomyopathy whose LVEF recovered to normal values after pharmacological therapy...
June 15, 2017: Cardiology
https://www.readbyqxmd.com/read/28614597/esc-sudden-death-risk-model-in-hypertrophic-cardiomyopathy-incremental-value-of-quantitative-contrast-enhanced-cmr-in-intermediate-risk-patients
#17
Rocio Hinojar, José Luis Zamorano, Ariana Gonzalez Gómez, Maria Plaza Martin, Amparo Esteban, Luis Miguel Rincón, Juan Carlos Portugal, José Julio Jimenez Nácher, Covadonga Fernández-Golfín
BACKGROUND: Hypertrophic cardiomyopathy (HCM) remains the most common cause of sudden cardiac death (SCD) in the young; however, current strategies do not identify all HCM patients at risk. A novel validated algorithm was proposed by the last European Society of Cardiology guidelines to guide implantable cardioverter-defibrillator (ICD) therapy. Recently, extensive myocardial fibrosis was independently associated with increased risk of SCD events. This study aimed to establish the relation between myocardial fibrosis (late gadolinium enhancement [LGE] extension) and the novel SCD risk-prediction model in a real population of HCM to evaluate its potential additional value in the different risk groups...
June 14, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28613082/impact-of-the-implantable-cardioverter-defibrillator-on-confidence-to-undertake-physical-activity-in-inherited-heart-disease-a-cross-sectional-study
#18
Joanna Sweeting, Kylie Ball, Julie McGaughran, John Atherton, Christopher Semsarian, Jodie Ingles
BACKGROUND: Physical activity is associated with improved quality of life. Patients with an implantable cardioverter defibrillator (ICD) face unique clinical and psychological challenges. Factors such as fear of ICD shock may negatively impact on physical activity, while a sense of protection gained from the ICD may instil confidence to be active. AIM: We aimed to examine the impact of an ICD on physical activity levels and factors associated with amount of activity...
June 1, 2017: European Journal of Cardiovascular Nursing
https://www.readbyqxmd.com/read/28612995/the-patient-perspective-on-remote-monitoring-of-patients-with-an-implantable-cardioverter-defibrillator-narrative-review-and-future-directions
#19
REVIEW
I Timmermans, M Meine, E Zitron, J Widdershoven, G Kimman, S Prevot, T Rauwolf, F Anselme, I Szendey, J Romero Roldán, P Mabo, B Schaer, J Denollet, H Versteeg
BACKGROUND: Studies have shown that remote monitoring (RPM) of implantable cardioverter defibrillators (ICDs) is at least comparable to in-clinic follow-up with regard to clinical outcomes and might be cost-effective, yet RPM is not standard clinical practice within Europe. Better insight into the patient perspective on RPM may aid in its acceptance, implementation and reimbursement. This narrative review 1) summarizes existing evidence on the impact of RPM on patient reported outcomes and 2) discusses future directions in examining the patient perspective...
June 14, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28607621/epicardially-placed-implantable-cardioverter-defibrillator-for-a-child-with-congenital-long-qt-syndrome
#20
Hirotaro Sugiyama, Motomi Tachibana, Hiroshi Morita, Nobuhiro Nishii, Akihito Miyoshi, Hiroyasu Sugiyama, Koji Nakagawa, Atsuyuki Watanabe, Kazufumi Nakamura, Hiroshi Ito
A 7-year-old boy presented at our hospital with syncope. At birth, electrocardiography had shown a long QT interval with torsade de pointes (TdP). Congenital long QT syndrome (LQTS) had been diagnosed by genetic testing, and was successfully controlled with oral propranolol. At age 7, TdP had recurred with syncope. Electrocardiography revealed a prominent long QT interval with T-wave alternans. The propranolol dose was increased, but TdP remained uncontrolled. A cardioverter-defibrillator (ICD) was implanted epicardially, and TdP completely resolved with atrial pacing...
June 2017: Journal of Arrhythmia
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