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Ventricular Tachycardia Ablation in the Elderly: An International Ventricular Tachycardia Center Collaborative Group Analysis [Original Articles]
Conclusion VT ablation in the elderly is feasible and reasonably safe with a modestly higher in-hospital and 1-year mortality, with similar rates of VT recurrence at 1 year compared with younger patients. Successful VT ablation, that is, lack of VT recurrence, is strongly associated with improved survival even in this elderly subgroup. (Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - December 18, 2017 Category: Cardiology Authors: Vakil, K., Garcia, S., Tung, R., Vaseghi, M., Tedrow, U., Della Bella, P., Frankel, D. S., Vergara, P., Di Biase, L., Nagashima, K., Nakahara, S., Tzou, W. S., Burkhardt, J. D., Dickfeld, T., Weiss, J. P., Bunch, J., Callans, D., Lakkireddy, D., Natale, A Tags: Arrhythmias, Catheter Ablation and Implantable Cardioverter-Defibrillator, Sudden Cardiac Death, Heart Failure Original Articles Source Type: research

Age of First Arrhythmic Event in Brugada Syndrome: Data From the SABRUS (Survey on Arrhythmic Events in Brugada Syndrome) in 678 Patients [Original Articles]
Conclusions SABRUS (Survey on Arrhythmic Events in Brugada Syndrome) presents the first analysis on the age distribution of AE in Brugada syndrome, suggesting 2 age cutoffs (16 and 70 years) that might be important for decision-making. It also allows gaining insights on the influence of mode of arrhythmia documentation, patient sex, and ethnic origin on the age at AE. (Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - December 18, 2017 Category: Cardiology Authors: Milman, A., Andorin, A., Gourraud, J.-B., Sacher, F., Mabo, P., Kim, S.-H., Maeda, S., Takahashi, Y., Kamakura, T., Aiba, T., Conte, G., Juang, J. J. M., Leshem, E., Rahkovich, M., Hochstadt, A., Mizusawa, Y., Postema, P. G., Arbelo, E., Huang, Z., Denjoy Tags: Arrhythmias, Sudden Cardiac Death Original Articles Source Type: research

Ablation of Atrial Arrhythmias in Postoperative Congenital Heart Disease Patients: Have We Reached the Upper Limit of Success or Is It Time for a Paradigm Shift in Strategy? [Editorial]
(Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - December 15, 2017 Category: Cardiology Authors: Moak, J. P. Tags: Arrhythmias, Catheter Ablation and Implantable Cardioverter-Defibrillator, Congenital Heart Disease Editorial Source Type: research

Ventricular Fibrillation: Rotors or Foci? Both! [Editorial]
(Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - December 15, 2017 Category: Cardiology Authors: Aras, K. K., Kay, M. W., Efimov, I. R. Tags: Arrhythmias, Electrophysiology, Sudden Cardiac Death, Ventricular Fibrillation Editorial Source Type: research

More Bubble, More Trouble?: Insights into Microembolic Events During Left Atrial Ablation [Editorial]
(Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - December 15, 2017 Category: Cardiology Authors: Schmidt, B., Chun, K. R. J. Tags: Atrial Fibrillation Editorial Source Type: research

Thromboembolic Risks of the Procedural Process in Second-Generation Cryoballoon Ablation Procedures: Analysis From Real-Time Transcranial Doppler Monitoring [Original Articles]
Conclusions A significant number of MESs and SCE/silent cerebral lesion occurrences were observed during second-generation cryoballoon ablation procedures. MESs were recorded during a variety of steps throughout the procedure; however, the majority occurred during phases with a high probability of gaseous emboli. (Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - December 15, 2017 Category: Cardiology Authors: Miyazaki, S., Watanabe, T., Kajiyama, T., Iwasawa, J., Ichijo, S., Nakamura, H., Taniguchi, H., Hirao, K., Iesaka, Y. Tags: Catheter Ablation and Implantable Cardioverter-Defibrillator, Atrial Fibrillation Original Articles Source Type: research

Endocardial Activation Drives Activation Patterns During Long-Duration Ventricular Fibrillation and Defibrillation [Original Articles]
Conclusions The results showed that the chaotic pattern was predominant in early VF, but the regular pattern emerges as VF progressed. The synchronized pattern only emerged occasionally during late VF. Failed defibrillation shocks changed chaotic and regular activation patterns to synchronized patterns in LDVF but not in short-duration VF. The regular and synchronized patterns of activation were driven by rapid activations on the endocardial surface that blocked and broke up transmurally, leading to an endocardial to epicardial activation rate gradient as LDVF progressed. (Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - December 15, 2017 Category: Cardiology Authors: Panitchob, N., Li, L., Huang, J., Ranjan, R., Ideker, R. E., Dosdall, D. J. Tags: Arrhythmias, Electrophysiology, Ventricular Fibrillation, Animal Models of Human Disease Original Articles Source Type: research

Radiofrequency Catheter Ablation of Atrial Tachycardias in Congenital Heart Disease: Results With Special Reference to Complexity of Underlying Anatomy [Original Articles]
Conclusions Acute procedural success of atrial tachycardia ablation in congenital heart patients was not influenced by complexity of CHD. Long-term outcome with regard to tachycardia recurrence was worse in patients with complex surgical atrial anatomy. (Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - December 15, 2017 Category: Cardiology Authors: Klehs, S., Schneider, H. E., Backhoff, D., Paul, T., Krause, U. Tags: Arrhythmias, Catheter Ablation and Implantable Cardioverter-Defibrillator, Congenital Heart Disease Original Articles Source Type: research

Time-to-Effect-Based Dosing Strategy for Cryoballoon Ablation in Patients With Paroxysmal Atrial Fibrillation: Results of the plusONE Multicenter Randomized Controlled Noninferiority Trial [Original Articles]
Conclusions The new time-to-effect–based cryotherapy dosage protocol led to shorter cryotherapy and procedure times, with equal safety, and similar acute and 1-year follow-up results, compared with the conventional approach. Clinical Trial Registration URL: https://clinicaltrials.gov. Unique identifier: NCT02789358. (Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - December 15, 2017 Category: Cardiology Authors: Ferrero-de-Loma-Osorio, A., Garcia-Fernandez, A., Castillo-Castillo, J., Izquierdo-de-Francisco, M., Ibanez-Criado, A., Moreno-Arribas, J., Martinez, A., Bertomeu-Gonzalez, V., Lopez-Mases, P., Ajo-Ferrer, M., Nunez, C., Bondanza-Saavedra, L., Sanchez-Gom Tags: Arrhythmias, Catheter Ablation and Implantable Cardioverter-Defibrillator, Electrophysiology, Atrial Fibrillation Original Articles Source Type: research

Near-Field Ultrasound Imaging of Ablation Lesion Formation: More Than Meets the Eye? [Editorial]
(Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - December 14, 2017 Category: Cardiology Authors: Zipse, M. M., Nguyen, D. T. Tags: Arrhythmias, Catheter Ablation and Implantable Cardioverter-Defibrillator Editorial Source Type: research

Near-Field Ultrasound Imaging During Radiofrequency Catheter Ablation: Tissue Thickness and Epicardial Wall Visualization and Assessment of Radiofrequency Ablation Lesion Formation and Depth [Original Articles]
Conclusions NFUS catheter imaging reliably assesses electrode-tissue contact and wall thickness. Its use during radiofrequency catheter ablation may allow the operator to assess the depth of ablation required for transmural lesion formation to optimize power delivery. (Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - December 14, 2017 Category: Cardiology Authors: Haines, D. E., Wright, M., Harks, E., Deladi, S., Fokkenrood, S., Brink, R., Belt, H., Kolen, A. F., Mihajlovic, N., Zuo, F., Rankin, D., Stoffregen, W., Cockayne, D., Cefalu, J. Tags: Arrhythmias, Catheter Ablation and Implantable Cardioverter-Defibrillator Original Articles Source Type: research

Significance of Inducible Nonsustained Ventricular Tachycardias After Catheter Ablation for Ventricular Tachycardia in Ischemic Cardiomyopathy [Original Articles]
Conclusions Inducible nonsustained VT postablation suggests the continued presence of functional arrhythmia substrate. Further trials are needed to assess whether additional ablation would improve outcome in this group. (Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - December 13, 2017 Category: Cardiology Authors: Fujii, A., Nagashima, K., Kumar, S., Tanigawa, S., Baldinger, S. H., Michaud, G. F., John, R. M., Koplan, B. A., Tokuda, M., Inada, K., Tedrow, U. B., Stevenson, W. G. Tags: Arrhythmias, Catheter Ablation and Implantable Cardioverter-Defibrillator Original Articles Source Type: research

Laser Balloon or Wide-Area Circumferential Irrigated Radiofrequency Ablation for Persistent Atrial Fibrillation: A Multicenter Prospective Randomized Study [Original Articles]
Conclusions An LB-guided strategy was associated with similar efficacy as wide-area circumferential pulmonary vein isolation using irrigated RF in patients with persistent AF. Clinical Trial Registration https://www.clinicaltrials.org. Unique identifier: NCT01863472. (Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - December 7, 2017 Category: Cardiology Authors: Schmidt, B., Neuzil, P., Luik, A., Osca Asensi, J., Schrickel, J. W., Deneke, T., Bordignon, S., Petru, J., Merkel, M., Sediva, L., Klostermann, A., Perrotta, L., Cano, O., Chun, K. R. J. Tags: Arrhythmias, Catheter Ablation and Implantable Cardioverter-Defibrillator, Atrial Fibrillation Original Articles Source Type: research

Atrial Fibrillation: Once Again Not So Easy to Prevent [Editorial]
(Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - December 6, 2017 Category: Cardiology Authors: McCaffrey, J. A., Tracy, C. M. Tags: Atrial Fibrillation, ACE/Angiotensin Receptors/Renin Angiotensin System, Primary Prevention Editorial Source Type: research

Pharmacologic Prevention of Incident Atrial Fibrillation: Long-Term Results From the ALLHAT (Antihypertensive and Lipid-Lowering Treatment to Prevent Heart Attack Trial) [Original Articles]
Conclusions Compared with chlorthalidone, treatment with lisinopril is not associated with a meaningful reduction in incident AF or AFL among older adults with a history of hypertension. Clinical Trial Registration URL: http://www.clinicaltrials.gov. Unique identifier: NCT00000542. (Source: Circulation: Arrhythmia and Electrophysiology)
Source: Circulation: Arrhythmia and Electrophysiology - December 6, 2017 Category: Cardiology Authors: Dewland, T. A., Soliman, E. Z., Yamal, J.-M., Davis, B. R., Alonso, A., Albert, C. M., Simpson, L. M., Haywood, L. J., Marcus, G. M., for the ALLHAT Collaborative Research Group Tags: Atrial Fibrillation, ACE/Angiotensin Receptors/Renin Angiotensin System, Epidemiology, Primary Prevention Original Articles Source Type: research