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Journal of Cardiovascular Electrophysiology

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https://www.readbyqxmd.com/read/28429542/study-of-the-wearable-cardioverter-defibrillator-in-advanced-heart-failure-patients-swift
#1
Alon Barsheshet, Valentina Kutyifa, Theodora Vamvouris, Arthur J Moss, Yitschak Biton, Leway Chen, Eugene Storozynsky, Chingping Wan, Steven J Szymkiewicz, Ilan Goldenberg
INTRODUCTION: The wearable cardioverter defibrillator (WCD) may allow stabilization until reassessment for an implantable cardioverter defibrillator (ICD) among high-risk HF patients. However, there are limited data on the WCD benefit in the acute decompensated HF setting. METHODS AND RESULTS: The Study of the Wearable Cardioverter Defibrillator in Advanced Heart-Failure Patients (SWIFT) was a prospective clinical trial carried out at two medical centers. Patients hospitalized with advanced HF symptoms and reduced left ventricular ejection function (LVEF) were enrolled and prescribed a WCD prior to discharge for a total of 3 months...
April 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28429537/preliminary-findings-on-the-safety-of-1-5-and-3-tesla-magnetic-resonance-imaging-in-cardiac-pacemaker-patients
#2
V F van Dijk, P P H M Delnoy, J J J Smit, R A Ramdat Misier, A Elvan, H W van Es, B J W M Rensing, G Raciti, L V A Boersma
INTRODUCTION: Modern pacemakers are designed to allow patients to undergo Magnetic Resonance Imaging(MRI) under a set of specific conditions. Aim of this study is to provide confirmatory evidence of safety and performance of a new pacing system (ImageReady™, Boston Scientific) in patients undergoing 1.5 and 3 Tesla(T) MRI. METHODS AND RESULTS: Two prospective, non-randomized, single-arm studies were designed to provide confirmatory data of no impact of MRI on device function, lead parameters and patient conditions in subjects implanted with the system undergoing a clinically non-indicated 1...
April 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28429529/impaired-left-atrial-function-predicts-inappropriate-shocks-in-primary-prevention-implantable-cardioverter-defibrillator-candidates
#3
Susumu Tao, Hiroshi Ashikaga, Luisa A Ciuffo, Kihei Yoneyama, Joao A C Lima, Terry F Frank, Robert G Weiss, Gordon F Tomaselli, Katherine C Wu
INTRODUCTION: Inappropriate implantable cardioverter-defibrillator (ICD) shocks, commonly caused by atrial fibrillation (AF), are associated with an increased mortality. Because impaired left atrial (LA) function predicts development of AF, we hypothesized that impaired LA function predicts inappropriate shocks beyond a history of AF. METHODS AND RESULTS: We prospectively analyzed the association between LA function and incident inappropriate shocks in primary prevention ICD candidates...
April 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28429528/use-of-adenosine-to-shorten-the-post-ablation-waiting-period-for-cavotricuspid-isthmus-dependent-atrial-flutter
#4
Gustavo Morales, Yousef H Darrat, Nicolas Lellouche, Sun Moon Kim, Muhammad Butt, Katrina Bidwell, William Lippert, Gbolahan Ogunbayo, David Hamon, Luigi Di Biase, Andrea Natale, Kevin Parrott, Claude S Elayi
BACKGROUND: Dormant conduction unmasked by adenosine predicts clinical recurrences of cavotricuspid isthmus (CTI) dependent atrial flutter following catheter ablation. Conventional practice involves a waiting period of 20 to 30 minutes after achievement of a bidirectional line of block (BDB) to monitor for recovery of conduction. OBJECTIVE: Assess whether abolition of dormant conduction with adenosine immediately after CTI ablation and BDB can predict the lack of CTI conduction recovery during the following 30 minutes...
April 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28429512/tailored-approach-for-management-of-ventricular-tachycardia-in-cardiac-sarcoidosis
#5
Sachin Yalagudri, Ngwe Zin Thu, Soumen Devidutta, Daljeet Saggu, Ajit Thachil, Sridevi Chennapragada, Calambur Narasimhan
INTRODUCTION: Treating ventricular tachycardia (VT) in patients with cardiac sarcoidosis (CS) is challenging as patients present in different phase of the disease (inflammatory, scar or sometimes both). A customized approach to treatment is required for better outcomes. We describe our experience in the management of VT in CS based on the phase of the disease. METHODS AND RESULTS: Patients were considered to have myocardial inflammation if there was an increased myocardial (18) Fluoro Deoxy Glucose (FDG) uptake in PET-CT scan of the chest (n=14)...
April 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28429499/atrial-fibrillation-patients-with-isolated-pulmonary-veins-is-sinus-rhythm-achievable
#6
Judit Szilágyi, Gregory M Marcus, Nitish Badhwar, Byron K Lee, Randall J Lee, Vasanth Vedantham, Zian H Tseng, Tomos Walters, Melvin Scheinman, Jeffrey Olgin, Edward P Gerstenfeld
BACKGROUND: The cornerstone of atrial fibrillation (AF) ablation is isolation of the pulmonary veins (PVs). Patients with recurrent AF undergoing repeat ablation usually have PV reconnection (PVr). The ablation strategy and outcome of patients undergoing repeat ablation who have persistent isolation of all PVs (PVi) at the time of repeat ablation is unknown. METHODS AND RESULTS: We studied consecutive patients with recurrent AF undergoing repeat ablation and compared patients with PVi to those with PVr...
April 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28422368/safety-and-efficacy-of-pulmonary-vein-isolation-using-a-surround-flow-catheter-with-contact-force-measurement-capabilities-a-multicenter-registry
#7
Giuseppe Stabile, Paolo Di Donna, Vincenzo Schillaci, Antonio Di Monaco, Assunta Iuliano, Domenico Caponi, Francesco Urraro, Francesco Solimene, Massimo Grimaldi, Marco Scaglione
INTRODUCTION: Pulmonary vein (PV) isolation is the cornerstone of catheter ablation in patients with atrial fibrillation (AF). Surround flow and contact force (CF) measurement capabilities might enhance procedure efficacy and safety. We report on the safety and mid-term efficacy of a novel ablation catheter for PV isolation in patients with AF. METHODS AND RESULTS: Two hundred thirty-three consecutive patients (57±11 years, 76% males, 51% with structural heart disease) referred for paroxysmal (157) or persistent (76) AF, underwent PV isolation by a surround flow catheter with CF measurement capability in 4 centers...
April 19, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28422349/effects-of-extrinsic-cardiac-nerve-stimulation-on-atrial-fibrillation-inducibility-the-regulatory-role-of-the-spinal-cord
#8
Zixuan Dai, Congxin Huang, Qingyan Zhao, Shujuan Zhang, Hongyi Zhao, Youjing Zhang, Yongsheng Qian, Yanhong Tang
OBJECTIVE: To investigate the effect of the mutual regulation of the extrinsic cardiac nerves on atrial electrophysiology and atrial fibrillation (AF) vulnerability. METHODS AND RESULTS: Fourteen dogs were randomly divided into 2 groups: spinal cord stimulation (SCS) group (n = 7) and spinal cord block (SCB) group (n = 7). SCS was performed with 90% of the threshold voltage stimulating the T1 -T2 spinal level, while SCB was performed by injecting 2% lidocaine into the epidural space at the T2-3 level...
April 19, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28422348/para-hisian-pacing-maneuver-a-pitfall-in-the-pitfall
#9
LETTER
Hussam Ali, Riccardo Cappato
No abstract text is available yet for this article.
April 19, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28422337/in-vivo-validation-of-a-novel-algorithm-for-automatic-premature-ventricular-contractions-recognition
#10
Jedrzej Kosiuk, Guilherme Portugal, Sebastian Hilbert, Silke John, Mario Oliveira, Gerhard Hindricks, Andreas Bollmann
INTRODUCTION: Template-matching algorithms are routinely used in the catheter ablation of patients with premature ventricular contractions (PVCs). However, systematic analysis of the accuracy and spatial resolution of such systems is lacking. Therefore, the aim of this evaluation was to perform a systematic in-vivo validation of performance of a novel automated template-matching algorithm. METHODS AND RESULTS: In a porcine model, paced beats simulating PVCs from different origins were investigated...
April 19, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28417526/response-to-letter-to-editor-titled-para-hisian-pacing-maneuver-a-pitfall-in-the-pitfall
#11
LETTER
Krishna Kumar Mohanan Nair, Anees Thajudeen, Narayanan Namboodiri, Ajitkumar Valaparambil
No abstract text is available yet for this article.
April 18, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28419605/radiofrequency-catheter-ablation-of-atrial-fibrillation-electrical-modification-suggesting-transmurality-is-faster-achieved-with-remote-magnetic-catheter-in-comparison-with-contact-force-use
#12
Sok-Sithikun Bun, Anis Ayari, Decebal Gabriel Latcu, Abdelkarim Errahmouni, Nadir Saoudi
BACKGROUND: Remote magnetic navigation (RMN) and contact force (CF) sensing catheters are available technologies for radiofrequency (RF) catheter ablation of atrial fibrillation (AF). Our purpose was to compare time to electrogram (EGM) modification suggesting transmural lesions between RMN and CF-guided AF ablation. METHODS AND RESULTS: 1008 RF applications were analyzed in 21 patients undergoing RMN (n = 11) or CF-guided ablation (n = 10) for paroxysmal AF. All procedures were performed in sinus rhythm during general anaesthesia...
April 17, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28419604/predicting-the-difficulty-of-a-transvenous-lead-extraction-procedure-validation-of-the-led-index
#13
Luca Bontempi, Francesca Vassanelli, Manuel Cerini, Lorenza Inama, Francesca Salghetti, Daniele Giacopelli, Alessio Gargaro, Abdallah Raweh, Antonio Curnis
INTRODUCTION: A Lead Extraction Difficulty (LED) score was proposed to predict the difficult transvenous lead extraction (TLE) procedures, defined by means of the fluoroscopy time. The aim of this study was to validate the estimation model based on the LED index above 10 on an independent data set of TLE cases. METHODS: Consecutive patients undergoing TLE between January 2014 and January 2016 were included in this analysis. The fluoroscopy time related to the leads removal was dichotomized as above or below its 90(th) percentile (PCTL)...
April 17, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28419594/catheter-ablation-for-the-treatment-of-atrial-fibrillation-is-associated-with-a-reduction-in-health-care-resource-utilization
#14
Michelle Samuel, Meytal Avgil Tsadok, Jacqueline Joza, Hassan Behlouli, Atul Verma, Vidal Essebag, Louise Pilote
BACKGROUND: Catheter ablation (CA) is superior to antiarrhythmic therapy at reducing recurrence of atrial fibrillation (AF); however, there is limited data regarding whether this decrease translates into a reduction in health care resource utilization. OBJECTIVE: To evaluate the impact of AF ablation on long-term health care resource utilization. METHODS: A population-based cohort was constructed to include patients who underwent CA for AF in Quebec, Canada between April 2005 and March 2011...
April 17, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28387480/what-happens-during-the-blanking-period-does-not-stay-in-the-blanking-period
#15
EDITORIAL
Nishant Verma, Bradley P Knight
No abstract text is available yet for this article.
April 7, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28387465/qt-interval-correction-in-lbbb-improving-the-accuracy-of-an-imperfect-measurement
#16
EDITORIAL
Basil Abu-El-Haija, J Paul Mounsey
No abstract text is available yet for this article.
April 7, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28387462/identification-and-electrophysiological-characterization-of-early-left-atrial-structural-remodeling-as-a-predictor-for-atrial-fibrillation-recurrence-after-pulmonary-vein-isolation
#17
Atsuhiko Yagishita, Dina Sparano, Ivan Cakulev, J Rod Gimbel, Timothy Phelan, Hossam Mustafa, Samer De Oliveira, Judith Mackall, Mauricio Arruda
BACKGROUND: Voltage-guided substrate ablation following pulmonary vein isolation (PVI) improves atrial fibrillation (AF) ablation outcomes. However, by setting upper voltage cutoff of 0.5 mV during sinus rhythm (SR) to guided substrate ablation using electroanatomic voltage mapping (EAVM), mildly affected low voltage area (maLVA) may be undetected. We sought to determine the optimal bipolar voltage cutoff to identify maLVA, its electrogram complexity, and the implication on ablation outcome...
April 7, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28387431/arrhythmogenic-effects-of-energy-drinks
#18
REVIEW
Andres Enriquez, David S Frankel
Energy drinks (ED) are increasingly popular, especially among adolescents and young adults. They are marketed as enhancers of energy, alertness and physical performance. ED contain high doses of caffeine and other active ingredients. Their safety has come under question due to reports temporally linking ED consumption with serious cardiovascular events, including arrhythmias and sudden cardiac death. In this article, we report two cases of life-threatening ventricular arrhythmias in young patients after consuming ED...
April 7, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28387428/determination-by-termination-use-of-termination-of-atrial-fibrillation-to-determine-comparability-of-methods-to-detect-focal-fibrillation-sources
#19
EDITORIAL
John M Miller
No abstract text is available yet for this article.
April 7, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28370885/mortality-effect-of-icd-in-primary-prevention-of-nonischemic-cardiomyopathy-a-meta-analysis-of-randomized-controlled-trials
#20
Faraz Khan Luni, Hemindermeet Singh, Abdur R Khan, Sonia A Malik, Owais Khawaja, Haris Riaz, Wade Lee, Ameer Kabour, Mark Richards, Johan Aasbo
INTRODUCTION: Implantation of an implantable cardioverter defibrillator (ICD) for primary prevention of sudden cardiac death (SCD) is controversial in view of the recent DANISH trial which suggested no benefit with ICD for primary prevention in patients with non-ischemic cardiomyopathy (NICMP). METHODS: We conducted a meta-analysis of randomized control trials studying the role of ICD in primary prevention of SCD in patients with NICMP. Only six studies were identified after the application of inclusion/exclusion criteria...
March 30, 2017: Journal of Cardiovascular Electrophysiology
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