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https://www.readbyqxmd.com/read/28543134/-real-life-longevity-of-implantable-cardioverter-defibrillator-devices
#1
Antonis S Manolis, Themistoklis Maounis, Spyridon Koulouris, Vassilios Vassilikos
BACKGROUND: Manufacturers of implantable cardioverter-defibrillators (ICDs) promise a 5- to 9-year projected longevity; however, real-life data indicate otherwise. The aim of the present study was to assess ICD longevity among 685 consecutive patients over the last 20 years. HYPOTHESIS: Real-life longevity of ICDs may differ from that stated by the manufacturers. METHODS: The study included 601 men and 84 women (mean age, 63.1 ± 13.3 years)...
May 22, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28532779/meta-analysis-of-risk-of-ventricular-arrhythmias-after-improvement-in-left-ventricular-ejection-fraction-during-follow-up-in-patients-with-primary-prevention-implantable-cardioverter-defibrillators
#2
Aiman Smer, Alok Saurav, Muhammad Soubhi Azzouz, Mohsin Salih, Mohamed Ayan, Ahmed Abuzaid, Abhilash Akinapelli, Arun Kanmanthareddy, Lynda E Rosenfeld, Faisal M Merchant, Hussam Abuissa
Implantable cardioverter defibrillators (ICDs) reduce the risk of sudden cardiac death in patients with impaired left ventricular ejection fraction (LVEF). However, there are limited data on the long-term benefit of ICD therapy in patients whose LVEF subsequently improves. We conducted a meta-analysis to evaluate the effect of LVEF improvement on ICD therapy during follow-up. Incidence rate ratios (IRRs) with 95% confidence intervals (CIs) were calculated using random-effects modeling. Sixteen studies with 3,959 patients were included in our analysis...
April 27, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28512364/-radiographic-implications-of-procedures-involving-cardiac-implantable-electronic-devices-cieds-selected-aspects
#3
Roman Steckiewicz, Dariusz Artur Kosior, Elżbieta Barbara Świętoń, Marek Rosiak, Bartosz Lange, Przemysław Stolarz
BACKGROUND: Some cardiac implantable electronic device (CIED) implantation procedures require the use of X-rays, which is reflected by such parameters as total fluoroscopy time (TFT) and dose-area product (DAP - defined as the absorbed dose multiplied by the area irradiated). MATERIAL AND METHODS: This retrospective study evaluated 522 CIED implantation (424 de novo and 98 device upgrade and new lead placement) procedures in 176 women and 346 men (mean age 75±11 years) over the period 2012-2015...
May 16, 2017: Medycyna Pracy
https://www.readbyqxmd.com/read/28506978/addition-of-blood-pressure-and-weight-transmissions-to-standard-remote-monitoring-of-implantable-defibrillators-and-its-association-with-mortality-and-rehospitalization
#4
M Obadah Al-Chekakie, Haikun Bao, Paul W Jones, Kenneth M Stein, Lucas Marzec, Paul D Varosy, Frederick A Masoudi, Jeptha P Curtis, Joseph G Akar
BACKGROUND: Among patients with implantable defibrillators (ICD), use of remote patient monitoring (RPM) is associated with lower risk of death and rehospitalization. Standard ICD RPM can be supplemented with weight and blood pressure data. It is not known whether standard RPM plus routine weight and blood pressure transmission (RPM+) is associated with better outcomes. METHODS AND RESULTS: RPM+ patients (n=4106) were compared with patients who only transmitted standard ICD RPM data (n=14 183)...
May 2017: Circulation. Cardiovascular Quality and Outcomes
https://www.readbyqxmd.com/read/28500812/the-prevalence-of-chagas-disease-among-latin-american-immigrants-with-pacemakers-in-los-angeles-california
#5
Sandy Park, Daniel R Sanchez, Mahmoud I Traina, Jason S Bradfield, Salvador Hernandez, Alvaro Joaquin Altamirano Ufion, Jalal Dufani, Patrick Bergin, Robin Y Wachsner, Sheba K Meymandi
AbstractChagas disease (CD), with associated conduction abnormalities, is a common indication for pacemaker implantation in Latin America. The prevalence of CD in Latin American immigrants with pacemakers residing in the United States has never been studied. This single-center cross-sectional study included pacemaker patients who were aged 18 years or more with a previous residence in Latin America for at least 6 months. Patients with an implantable cardioverter-defibrillator, cardiac resynchronization therapy, or iatrogenic and/or congenital heart block were excluded...
May 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28496929/management-of-patients-with-atrial-fibrillation-focus-on-treatment-options
#6
REVIEW
Pawel Matusik, Jacek Lelakowski, Barbara Malecka, Jacek Bednarek, Remigiusz Noworolski
Atrial fibrillation (AF) is leading cardiac arrhythmia with important clinical implications. Its diagnosis is usually made on the basis on 12-lead ECG or 24-hour Holter monitoring. More and more clinical evidence supports diagnostic use of cardiac event recorders and cardiovascular implantable electronic devices (CIED). Treatment options in patients with atrial fibrillation are extensive and are based on chosen rhythm and/or rate control strategy. The use and selected contraindications to AF related pharmacotherapy, including anticoagulants are shown...
October 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/28494974/multiple-comorbidities-and-response-to-cardiac-resynchronization-therapy-madit-crt-long-term-follow-up
#7
Emily P Zeitler, Daniel J Friedman, James P Daubert, Sana M Al-Khatib, Scott D Solomon, Yitschak Biton, Scott McNitt, Wojciech Zareba, Arthur J Moss, Valentina Kutyifa
BACKGROUND: Data regarding cardiac resynchronization therapy (CRT) in patients with multiple comorbidities are limited. OBJECTIVES: This study evaluated the association of multiple comorbidities with the benefits of CRT over implantable cardioverter-defibrillator (ICD) alone. METHODS: We examined 1,214 MADIT-CRT (Multicenter Automatic Defibrillator Implantation Trial with Cardiac Resynchronization Therapy) study patients with left bundle branch block (LBBB) and 0, 1, 2, or ≥3 comorbidities, including renal dysfunction, hypertension (HTN), diabetes, coronary artery disease, history of atrial arrhythmias, history of ventricular arrhythmias, current smoking, and cerebrovascular accident...
May 16, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28490521/survival-in-women-versus-men-following-implantation-of-pacemakers-defibrillators-and-cardiac-resynchronization-therapy-devices-in-a-large-nationwide-cohort
#8
Niraj Varma, Suneet Mittal, Julie B Prillinger, Jeff Snell, Nirav Dalal, Jonathan P Piccini
BACKGROUND: Whether outcomes differ between sexes following treatment with pacemakers (PM), implantable cardioverter defibrillators, and cardiac resynchronization therapy (CRT) devices is unclear. METHODS AND RESULTS: Consecutive US patients with newly implanted PM, implantable cardioverter defibrillators, and CRT devices from a large remote monitoring database between 2008 and 2011 were included in this observational cohort study. Sex-specific all-cause survival postimplant was compared within each device type using a multivariable Cox proportional hazards model, stratified on age and adjusted for remote monitoring utilization and ZIP-based socioeconomic variables...
May 10, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28484841/-bundle-branch-reentry-vt-diagnosis-mapping-and-ablation
#9
REVIEW
Christopher Reithmann
Macroreentry in the His-Purkinje system can result in sustained ventricular tachycardia (VT) termed bundle branch reentry VT. Bundle branch reentry is usually associated with His-Purkinje disease and depressed left ventricular function. In the case of typical bundle branch reentry, the right bundle is activated in the anterograde direction and ventricular depolarization begins at the distal end of the right bundle on the ventricular septum generating a typical left bundle branch block QRS morphology. However, atypical surface ECGs can also be found in patients with severe left ventricular dysfunction and involvement of the right ventricle complicating the diagnosis of bundle branch reentry VT...
May 8, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28471012/effects-of-epicardial-versus-transvenous-left-ventricular-lead-placement-on-left-ventricular-function-and-cardiac-perfusion-in-cardiac-resynchronisation-therapy-a-randomized-clinical-trial
#10
Vincent F van Dijk, Jim Fanggiday, Jippe C Balt, Maurits C E F Wijffels, Edgar J Daeter, J C Kelder, Lucas V A Boersma
INTRODUCTION: Optimal left ventricular (LV) lead position in patients undergoing cardiac resynchronization therapy(CRT) is crucial to achieve an optimal effect on hemodynamics. Due to various difficulties, up to 30% of transvenous LV lead placements fail, or a suboptimal position is achieved. Surgical epicardial LV lead placement could be performed at a position anticipated to be the optimal site. This could have a more favorable effect, which may be expressed by increased improvement in left ventricular ejection fraction(LVEF) and cardiac perfusion...
May 4, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28464008/frequency-and-clinical-impact-of-retained-implantable-cardioverter-defibrillator-lead-materials-in-heart-transplant-recipients
#11
Jun Kim, Jongmin Hwang, Jin Hee Choi, Hyo-In Choi, Min-Seok Kim, Sung-Ho Jung, Gi-Byoung Nam, Kee-Joon Choi, Jae Won Lee, You-Ho Kim, Jae-Joong Kim
End-stage heart failure patients with implantable cardioverter-defibrillator (ICD) with/without cardiac resynchronization therapy (CRT-D) often require heart transplantation (HTPL) as a last-resort treatment. We aimed to assess the frequency and clinical impact of retained ICD lead materials in HTPL patients. In this retrospective single center study, we examined the clinical records and chest radiographs of patients with ICD and CRT-D who underwent HTPL between January 1992 and July 2014. Of 40 patients with ICD and CRT-D at HTPL, 19 (47...
2017: PloS One
https://www.readbyqxmd.com/read/28451588/lead-extraction-of-cardiac-rhythm-devices-a-report-of-a-single-center-experience
#12
Ana Isabel Azevedo, João Primo, Helena Gonçalves, Marco Oliveira, Luís Adão, Elisabeth Santos, José Ribeiro, Marlene Fonseca, Adelaide V Dias, Luís Vouga, Vasco Gama Ribeiro
INTRODUCTION AND OBJECTIVES: The rate of implanted cardiac electronic devices is increasing as is the need to manage long-term complications. Lead removal is becoming an effective approach to treat such complications. We present our experience in lead removal using different approaches, analyzing the predictors of the use of mechanical extractors/surgical removal. METHODS: Retrospective analysis of lead extractions in a series of 76 consecutive patients (mean age 70...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28449799/impact-of-current-versus-previous-cardiac-resynchronization-therapy-guidelines-on-the-proportion-of-patients-with-heart%C3%A2-failure-eligible-for-therapy
#13
REVIEW
Kristin J Lyons, Justin A Ezekowitz, Li Liang, Paul A Heidenreich, Clyde W Yancy, Adam D DeVore, Adrian F Hernandez, Gregg C Fonarow
OBJECTIVES: This study sought to ascertain the impact of heart failure (HF) guideline change on the number of patients eligible to undergo cardiac resynchronization therapy (CRT). BACKGROUND: The 2013 HF guideline of the American College of Cardiology Foundation and American Heart Association (ACCF/AHA) narrowed the recommendations for CRT. The impact of this guideline change on the number of eligible patients for CRT has not been described. METHODS: Using data from Get With The Guidelines-Heart Failure between 2012 and 2015, this study evaluated the proportion of hospitalized patients with HF who were eligible for CRT on the basis of historical and current guideline recommendations...
May 2017: JACC. Heart Failure
https://www.readbyqxmd.com/read/28432849/upper-extremity-deep-venous-thrombosis-and-stenosis-after-implantation-of-pacemakers-and-defibrillators-a-prospective-study
#14
Morteza Safi, Mohammad Ali Akbarzadeh, Azadeh Azinfar, Mohammad Hasan Namazi, Isa Khaheshi
BACKGROUND: Obstruction of the access vein following cardiac pacemaker and defibrillator implantation is a common complication. However, the exact incidence and contributing risk factors are unknown. The aim of this study is to determine the incidence and analyze the contribution of each risk factor. METHODS: 57 consecutive patients candidate for their first transvenous pacemaker, implantable cardioverter-defibrillator (ICD), or cardiac resynchronization therapy device implantation were enrolled...
April 22, 2017: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
https://www.readbyqxmd.com/read/28431056/long-term-outcome-of-transvenous-pacemaker-implantation-in-infants-a-retrospective-cohort-study
#15
Laura M Vos, Janneke A E Kammeraad, Matthias W Freund, Andreas C Blank, Johannes M P J Breur
Aim: Evaluation of long-term outcome of transvenous pacemaker (PM) implantation in infants. Methods and Results: A retrospective analysis of all transvenous PM implantations in infants <10 kg between September 1997 and October 2001 was made. Indications for PM implantation, age at implantation, and determinants of long-term outcome including cardiac function, PM function, and PM (system) complications were noted. Seven patients underwent transvenous VVI(R) PM implantation...
April 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28431009/artefact-free-late-gadolinium-enhancement-imaging-in-patients-with-implanted-cardiac-devices-using-a-modified-broadband-sequence-current-strategies-and-results-from-a-real-world-patient-cohort
#16
Sebastian Hilbert, Alexander Weber, Kay Nehrke, Peter Börnert, Bernhard Schnackenburg, Sabrina Oebel, Ricardo Spampinato, Cathleen Rogge, Sergio Richter, Gerhard Hindricks, Ingo Paetsch, Cosima Jahnke
Aims: Cardiac magnetic resonance (CMR) imaging in patients with implanted cardiac devices is often limited by device-related imaging artefacts. Limitations can potentially be overcome by employing a broadband late gadolinium enhancement (LGE)-CMR imaging technique. The purpose of this study was to investigate the relationship between implanted cardiac devices and the optimal frequency offset on broadband LGE-CMR imaging to increase the artefact-free visibility of myocardial segments. Methods and results: A phantom study was performed to characterize magnetic field disturbances related to 15 different cardiac devices...
April 18, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28430113/should-physicians-instead-of-industry-representatives-be-the-main-actor-of-cardiac-implantable-electronic-device-follow-up-super-follow-up
#17
Çağın Mustafa Üreyen, Cem Yunus Baş, İsa Öner Yüksel, Görkem Kuş, Göksel Çağırcı, Şakir Arslan
OBJECTIVE: This retrospective study sought to research the adequacy of the follow-up and optimization of cardiac implantable electronic devices (CIEDs) performed by industry representatives. METHODS: A total of 403 consecutive patients (35% females; median age, 67 years; age range 18-97 years) with either pacemakers (n=246), implantable cardioverter-defibrillators (ICDs), (n=117) or cardiac resynchronization therapy with defibrillator (CRT-D) (n=40) applied to our hospital's outpatient pacemaker clinic for follow-up...
April 19, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28428881/nano-pulse-stimulation-is-a-physical-modality-that-can-trigger-immunogenic-tumor-cell-death
#18
Richard Nuccitelli, Amanda McDaniel, Snjezana Anand, John Cha, Zachary Mallon, Jon Casey Berridge, Darrin Uecker
BACKGROUND: We have been developing a non-thermal, drug-free tumor therapy called Nano-Pulse Stimulation (NPS) that delivers ultrashort electric pulses to tumor cells which eliminates the tumor and inhibits secondary tumor growth. We hypothesized that the mechanism for inhibiting secondary tumor growth involves stimulating an adaptive immune response via an immunogenic form of apoptosis, commonly known as immunogenic cell death (ICD). ICD is characterized by the emission of danger-associated molecular patterns (DAMPs) that serve to recruit immune cells to the site of the tumor...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28428489/superior-rhythm-discrimination-with-the-smartshock-technology-algorithm%C3%A3-results-of-the-implantable-defibrillator-with-enhanced-features-and-settings-for-reduction-of-inaccurate-detection-defense-trial
#19
Yasushi Oginosawa, Ritsuko Kohno, Toshihiro Honda, Kan Kikuchi, Masatsugu Nozoe, Takayuki Uchida, Hitoshi Minamiguchi, Koichiro Sonoda, Masahiro Ogawa, Takeshi Ideguchi, Yoshihisa Kizaki, Toshihiro Nakamura, Kageyuki Oba, Satoshi Higa, Keiki Yoshida, Soichi Tsunoda, Yoshihisa Fujino, Haruhiko Abe
BACKGROUND: Shocks delivered by implanted anti-tachyarrhythmia devices, even when appropriate, lower the quality of life and survival. The new SmartShock Technology(®)(SST) discrimination algorithm was developed to prevent the delivery of inappropriate shock. This prospective, multicenter, observational study compared the rate of inaccurate detection of ventricular tachyarrhythmia using the SST vs. a conventional discrimination algorithm.Methods and Results:Recipients of implantable cardioverter defibrillators (ICD) or cardiac resynchronization therapy defibrillators (CRT-D) equipped with the SST algorithm were enrolled and followed up every 6 months...
April 20, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28427578/implantable-cardioverter-defibrillators-with-versus-without-resynchronization-therapy-in-patients-with-a-qrs-duration%C3%A2-180-ms
#20
Varun Sundaram, Jayakumar Sahadevan, Albert L Waldo, George J Stukenborg, Yogesh N V Reddy, Samuel J Asirvatham, Judith A Mackall, Anselma Intini, Brigid Wilson, Daniel I Simon, Kenneth C Bilchick
BACKGROUND: More than 20% of Medicare beneficiaries receiving cardiac resynchronization therapy defibrillators (CRT-D) have a very wide (≥180 ms) QRS complex duration (QRSD). Outcomes of CRT-D in these patients are not well-established because they have been underrepresented in clinical trials. OBJECTIVES: This study examined outcomes in patients with CRT-D in a very wide QRSD with left bundle branch block (LBBB) versus those without LBBB. METHODS: Medicare patients from the Implantable Cardioverter Defibrillator Registry (January 1, 2005, through April 30, 2006) with a CRT-D and confirmed Class I or IIa indications for CRT-D were matched to implantable cardioverter-defibrillator (ICD) patients without CRT despite having Class I or IIa indications for CRT...
April 25, 2017: Journal of the American College of Cardiology
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