Intermuscular pocket for subcutaneous implantable cardioverter defibrillator: Single-center experience
Publication date: Available online 23 February 2016 Source:Journal of Arrhythmia Author(s): Paola Ferrari, Fabrizio Giofrè, Paolo De Filippo The subcutaneous implantable cardioverter defibrillator (S-ICD) is a novel device now accepted in clinical practice for treating ventricular arrhythmias. In 14 consecutive patients, S-ICD devices were placed in the virtual space between the anterior surface of the serratus anterior muscle and the posterior surface of the latissimus dorsi muscle. During a mean follow up of 9 months, no dislocations, infections, hematoma formations, or skin erosions were observed. Intermuscul...
Source: Journal of Arrhythmia - February 24, 2016 Category: Cardiology Source Type: research

Eccentric scar formation around a pulmonary vein after cryo-balloon ablation in a patient with atrial fibrillation: A case report
Publication date: Available online 23 February 2016 Source:Journal of Arrhythmia Author(s): Kunihiko Kiuchi, Koji Fukuzawa, Akinori Matsumoto The impact of a cryoballoon ablation is reported to be similar to that of a radiofrequency (RF) ablation in patients with atrial fibrillation. Delayed enhancement magnetic resonance imaging (DE-MRI) could visualize the scar region induced by the cryoballoon ablation as well as RF ablation. Cryoballoon ablation could induce extensive scar lesions around the PVs. However, the distribution of the scar lesions after the cryoballoon ablation has not been well discussed. We, here...
Source: Journal of Arrhythmia - February 24, 2016 Category: Cardiology Source Type: research

Radiofrequency catheter ablation of left-sided accessory pathways via retrograde aortic approach in children
Conclusions The retrograde aortic approach can be safely employed with a high success rate for ablation of left-sided accessory pathways in children. (Source: Journal of Arrhythmia)
Source: Journal of Arrhythmia - February 12, 2016 Category: Cardiology Source Type: research

Ischemic Brugada phenocopy during ablation of ventricular tachycardia
Publication date: Available online 9 February 2016 Source:Journal of Arrhythmia Author(s): Byron H. Gottschalk, Daniel D. Anselm, Adrian Baranchuk (Source: Journal of Arrhythmia)
Source: Journal of Arrhythmia - February 10, 2016 Category: Cardiology Source Type: research

Atrial arrhythmias in inherited arrhythmogenic disorders
Publication date: Available online 9 February 2016 Source:Journal of Arrhythmia Author(s): Can Hasdemir Atrial arrhythmias are being increasingly recognized in inherited arrhythmogenic disorders particularly in patients with Brugada syndrome and short QT syndrome. Atrial arrhythmias in inherited arrhythmogenic disorders have significant epidemiologic, clinical, and prognostic implications. There has been progress in the understanding of underlying genetic characteristics and the mechanistic link between atrial arrhythmias and inherited arrhythmogenic disorders. Appropriate management of these patients is of paramount...
Source: Journal of Arrhythmia - February 10, 2016 Category: Cardiology Source Type: research

A multicenter observational study of the effectiveness of antiarrhythmic agents in ventricular arrhythmias: A propensity-score adjusted analysis
Conclusion Amiodarone and nifekalant are similarly effective in preventing VT recurrence, but their impact on survival rate is minimal. These data indicate that both nifekalant and amiodarone can be used for treatment of refractory VT. (Source: Journal of Arrhythmia)
Source: Journal of Arrhythmia - February 10, 2016 Category: Cardiology Source Type: research

Alternative approach for management of an electrical storm in Brugada syndrome:Importance of primary ablation within a narrow time window
We report an alternative approach whereby, before ICD implantation, emergency catheter ablation of the VF-triggering premature ventricular contraction (PVC) resulted in long-term VF-free survival. The results suggest that, because VF triggers appear in a narrow time window, ablation of the culprit PVCs that initiate VF before the index PVCs subside is a reasonable alternative approach. (Source: Journal of Arrhythmia)
Source: Journal of Arrhythmia - February 9, 2016 Category: Cardiology Source Type: research

Successful dual chamber ICD implantation via a persistent left superior vena cava after ratchet syndrome
Publication date: Available online 6 February 2016 Source:Journal of Arrhythmia Author(s): Naofumi Anjo, Shiro Nakahara, Tohru Kamijima, Yuichi Hori, Ayako Nakagawa, Naoki Nishiyama, Kouta Yamada, Takaaki Komatsu, Sayuki Kobayashi, Yoshihiko Sakai, Isao Taguchi (Source: Journal of Arrhythmia)
Source: Journal of Arrhythmia - February 8, 2016 Category: Cardiology Source Type: research

Recent advances in genetic testing and counseling for inherited arrhythmias
This article discusses indications for genetic testing of patients with inherited arrhythmias. Further, it describes the benefits and challenges that we face in the era of next generation sequencing. Finally, it briefly discusses genetic counseling, in which a multidisciplinary approach is required due to the increased complexity of the genetic information related to inherited arrhythmias. (Source: Journal of Arrhythmia)
Source: Journal of Arrhythmia - February 6, 2016 Category: Cardiology Source Type: research

Clinical and electrocardiographic predictors of T wave oversensing in patients with subcutaneous ICD
Conclusion In this study, younger age, higher ejection fraction, and lower QRS amplitude were associated with TWOS. These findings could help identify patients referred for S-ICD at high-risk of TWOS. (Source: Journal of Arrhythmia)
Source: Journal of Arrhythmia - February 6, 2016 Category: Cardiology Source Type: research

Localized rotors and focal impulse sources within the left atrium in human atrial fibrillation: A phase analysis of contact basket catheter electrograms
Conclusion Localized rotors and focal impulses can be identified on phase maps of atrial fibrillation in a small number of patients. (Source: Journal of Arrhythmia)
Source: Journal of Arrhythmia - February 4, 2016 Category: Cardiology Source Type: research

Histological examination of the right atrial appendage after failed catheter ablation for focal atrial tachycardia complicated by cardiogenic shock in a post-partum patient
Publication date: Available online 3 February 2016 Source:Journal of Arrhythmia Author(s): Akira Mizukami, Makoto Suzuki, Rena Nakamura, Shunsuke Kuroda, Maki Ono, Yuya Matsue, Ryota Iwatsuka, Taishi Yonetsu, Akihiko Matsumura, Yuji Hashimoto A 26-year-old woman in her first pregnancy presented with persistent atrial tachycardia (AT). AT was resistant to medications, cardioversions, and the first attempt of catheter ablation. Two months after delivery she developed severe systolic dysfunction and circulatory collapse. Emergent catheter ablation was performed with the support of percutaneous cardiopu...
Source: Journal of Arrhythmia - February 4, 2016 Category: Cardiology Source Type: research

2015 HRS/EHRA/APHRS/SOLAECE expert consensus statement on optimal implantable cardioverter-defibrillator programming and testing
Publication date: Available online 1 February 2016 Source:Journal of Arrhythmia Author(s): Bruce L. Wilkoff, Laurent Fauchier, Martin K. Stiles, Carlos A. Morillo, Sana M. Al-Khatib, Jesœs Almendral, Luis Aguinaga, Ronald D. Berger, Alejandro Cuesta, James P. Daubert, Sergio Dubner, Kenneth A. Ellenbogen, N.A. Mark Estes, Guilherme Fenelon, Fermin C. Garcia, Maurizio Gasparini, David E. Haines, Jeff S. Healey, Jodie L. Hurtwitz, Roberto Keegan, Christof Kolb, Karl-Heinz Kuck, Germanas Marinskis, Martino Martinelli, Mark McGuire, Luis G. Molina, Ken Okumura, Alessan...
Source: Journal of Arrhythmia - February 1, 2016 Category: Cardiology Source Type: research

Molecular pathogenesis of long QT syndrome type 1
Publication date: Available online 27 January 2016 Source:Journal of Arrhythmia Author(s): Jie Wu, Wei-Guang Ding, Minoru Horie Long QT syndrome type 1 (LQT1) is a subtype of a congenital cardiac syndrome caused by mutation in the KCNQ1 gene, which encodes the α-subunit of the slow component of delayed rectifier K+ current (I Ks) channel. Arrhythmias in LQT1 are characterized by prolongation of the QT interval on ECG, as well as the occurrence of life-threatening cardiac events, frequently triggered by adrenergic stimuli (e.g., physical or emotional stress). During the past two decades, much advancement has been...
Source: Journal of Arrhythmia - January 29, 2016 Category: Cardiology Source Type: research

Impact of transesophageal echocardiography during transseptal puncture on atrial fibrillation ablation
Conclusions TEE-guided TP for AF ablation is associated with shorter fluoroscopy time, shorter total cryoablation time, and shorter total procedural time. Importantly, TEE-guided TP facilitates cryoablation of the inferior pulmonary veins. (Source: Journal of Arrhythmia)
Source: Journal of Arrhythmia - January 29, 2016 Category: Cardiology Source Type: research