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Clinical Course and Quality of Life in High-Risk Patients With Hypertrophic Cardiomyopathy and Implantable Cardioverter-Defibrillators [Original Articles]
Conclusions: In HCM, unlike ischemic heart disease, prevention of sudden death with ICD therapy is unassociated with significant increase in cardiovascular morbidity or mortality, or transformation to heart failure deterioration. ICD therapy does not substantially impair overall psychological and physical well-being. (Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - April 6, 2018 Category: Cardiology Authors: Maron, B. J., Casey, S. A., Olivotto, I., Sherrid, M. V., Semsarian, C., Autore, C., Ahmed, A., Boriani, G., Francia, P., Winters, S. L., Giudici, M., Koulova, A., Garberich, R., Rowin, E. J., Sears, S. F., Maron, M. S., Spirito, P. Tags: Catheter Ablation and Implantable Cardioverter-Defibrillator, Sudden Cardiac Death, Cardiomyopathy Original Articles Source Type: research

Characteristics of Ice Impedance Recorded From a Ring Electrode Placed at the Anterior Surface of the Cryoballoon: Novel Approach to Define Ice Formation and Pulmonary Vein Isolation [Original Articles]
Conclusions: Impedance rise of 500 at <90 seconds with freeze time of 90 seconds resulted in 100% PVI. Impedance measurements from the nose of the balloon is a direct measure of ice formation on the balloon. It provides real-time feedback on the quality of the ablation and defines the cryoapplication termination time based on ice formation, limiting ice expansion to extracardiac tissues. (Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - April 4, 2018 Category: Cardiology Authors: Avitall, B., Kalinski, A., Kocheril, G. S., Lizama, K. S., Coulombe, N., Laske, T. Tags: Electrophysiology, Atrial Fibrillation Original Articles Source Type: research

Differentiating Ventricular From Supraventricular Arrhythmias Using the Postpacing Interval After Failed Antitachycardia Pacing [Original Articles]
Conclusions: The ATP response, specifically the PPI–TCL, can further discriminate ventricular from supraventricular arrhythmias in patients with implantable cardioverter defibrillators when the currently available discriminators fail. Clinical Trial Registration: URL: https://www.clinicaltrials.gov. Unique identifier: NCT00251251. (Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - April 4, 2018 Category: Cardiology Authors: Bennett, M. T., Leader, N., Sapp, J., Parkash, R., Gardner, M., Healey, J. S., Thibault, B., Sterns, L., Essebag, V., Birnie, D., Sivakumaran, S., Nery, P., Andrade, J. G., Krahn, A. D., Tang, A. Tags: Arrhythmias, Catheter Ablation and Implantable Cardioverter-Defibrillator, Electrophysiology Original Articles Source Type: research

Novel Measure of Local Impedance Predicts Catheter-Tissue Contact and Lesion Formation [Original Articles]
Conclusions: LI recorded from miniature electrodes provides a valuable measure of catheter–tissue coupling, and LI is predictive of lesion formation during radiofrequency ablation. (Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - April 4, 2018 Category: Cardiology Authors: Sulkin, M. S., Laughner, J. I., Hilbert, S., Kapa, S., Kosiuk, J., Younan, P., Romero, I., Shuros, A., Hamann, J. J., Hindricks, G., Bollmann, A. Tags: Catheter Ablation and Implantable Cardioverter-Defibrillator Original Articles Source Type: research

April 2nd Question [Challenge of the Week]
(Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - April 2, 2018 Category: Cardiology Authors: Santangeli, P. Tags: Arrhythmias, Electrophysiology Challenge of the Week Source Type: research

March 26th Question [Challenge of the Week]
(Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - March 26, 2018 Category: Cardiology Authors: Santangeli, P. Tags: Arrhythmias, Electrophysiology Challenge of the Week Source Type: research

In This Issue: March [In This Issue: March]
(Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - March 20, 2018 Category: Cardiology Tags: In This Issue: March Source Type: research

March 19th Question [Challenge of the Week]
(Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - March 19, 2018 Category: Cardiology Authors: Noheria, A. Tags: Arrhythmias, Electrophysiology, Electrocardiology (ECG) Challenge of the Week Source Type: research

Ventricular Arrhythmias From the Infundibular Muscles: Another Step in Understanding the Complex Right Ventricular Anatomy [Editorial]
(Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - March 16, 2018 Category: Cardiology Authors: Enriquez, A., Garcia, F. Tags: Catheter Ablation and Implantable Cardioverter-Defibrillator Editorial Source Type: research

Resetting the Bar to Reduce Radiation Exposure During Ablation of Cardiac Arrhythmias [Editorial]
(Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - March 16, 2018 Category: Cardiology Authors: Lindsay, B. D. Tags: Arrhythmias, Catheter Ablation and Implantable Cardioverter-Defibrillator, Atrial Fibrillation Editorial Source Type: research

Bronchial Injury After Atrial Fibrillation Ablation Using the Second-Generation Cryoballoon [Research Letter]
(Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - March 16, 2018 Category: Cardiology Authors: Bellmann, B., Hubner, R.-H., Lin, T., Paland, M., Steiner, F., Krause, P., Tscholl, V., Nagel, P., Roser, M., Suttorp, N., Landmesser, U., Rillig, A. Tags: Arrhythmias, Electrophysiology, Atrial Fibrillation Research Letter Source Type: research

Can We Use the Intrinsic Left Ventricular Delay (QLV) to Optimize the Pacing Configuration for Cardiac Resynchronization Therapy With a Quadripolar Left Ventricular Lead? [Original Articles]
Conclusions: The large variation in acute hemodynamic response indicates that the choice of the stimulated electrode on a quadripolar lead is important. Although QLV/QRSd was associated with acute hemodynamic response at group level, it cannot be used to select the optimal electrode in the individual patient. (Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - March 16, 2018 Category: Cardiology Authors: van Everdingen, W. M., Zweerink, A., Cramer, M. J., Doevendans, P. A., Nguyen, U. C., van Rossum, A. C., Prinzen, F. W., Vernooy, K., Allaart, C. P., Meine, M. Tags: Heart Failure, Pacemaker Original Articles Source Type: research

Idiopathic Ventricular Arrhythmias Originating From the Infundibular Muscles: Prevalence, Electrocardiographic and Electrophysiological Characteristics, and Outcome of Catheter Ablation [Original Articles]
Conclusions: Idiopathic VAs originating from the IFMs are rare (PB>SB). Catheter ablation of these IFMs VAs was challenging, requiring a large amount of the radiofrequency energy delivery for a successful ablation with a relatively high recurrence rate. (Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - March 16, 2018 Category: Cardiology Authors: Yamada, T., Yoshida, N., Litovsky, S. H., Itoh, T., Doppalapudi, H., Kay, G. N. Tags: Catheter Ablation and Implantable Cardioverter-Defibrillator Original Articles Source Type: research

Sex Differences in Cardiac Arrhythmias: Clinical and Research Implications [Review]
(Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - March 16, 2018 Category: Cardiology Authors: Ehdaie, A., Cingolani, E., Shehata, M., Wang, X., Curtis, A. B., Chugh, S. S. Tags: Arrhythmias, Electrophysiology, Women Review Source Type: research

Predictors of Zero X-Ray Ablation for Supraventricular Tachycardias in a Nationwide Multicenter Experience [Original Articles]
Conclusions: The use of 3-dimensional mapping system completely avoided the use of fluoroscopy in most cases, with very low fluoroscopy time in the remaining and high safety and effectiveness profiles. Achievement of ZFL was predicted by the type of arrhythmia, operator’s experience, and patient’s age. (Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - March 16, 2018 Category: Cardiology Authors: Pani, A., Giuseppina, B., Bonanno, C., Grazia Bongiorni, M., Bottoni, N., Brambilla, R., Ceglia, S. d., Della Bella, P., Vito, G. d., Malaspina, D., Menardi, E., Napoli, V., Negroni, M. S., Ocello, S., Orsida, D., Pandozi, C., Pedretti, S., Penela, D., Pe Tags: Arrhythmias, Catheter Ablation and Implantable Cardioverter-Defibrillator Original Articles Source Type: research