Idiopathic Ventricular Arrhythmias Originating From the Aortic Root

• Published in: Journal of the American College of Cardiology 2008-07, Vol.52 (2), p.139-147
• Main Authors: Yamada, Takumi, MD, McElderry, H. Thomas, MD, Doppalapudi, Harish, MD, Murakami, Yoshimasa, MD, Yoshida, Yukihiko, MD, Yoshida, Naoki, MD, Okada, Taro, MD, Tsuboi, Naoya, MD, Inden, Yasuya, MD, Murohara, Toyoaki, MD, Epstein, Andrew E., MD, Plumb, Vance J., MD, Singh, Satinder P., MD, Kay, G. Neal, MD
• Format: Article
• Language: English
• Subjects: aortic root; Cardiovascular; characteristics; Internal Medicine; prevalence; radiofrequency catheter ablation; ventricular arrhythmia
• ISSN: 0735-1097; 1558-3597
• DOI: 10.1016/j.jacc.2008.03.040

Idiopathic Ventricular Arrhythmias Originating From the Aortic Root: Prevalence, Electrocardiographic and Electrophysiologic Characteristics, and Results of Radiofrequency Catheter Ablation Takumi Yamada, H. Thomas McElderry, Harish Doppalapudi, Yoshimasa Murakami, Yukihiko Yoshida, Naoki Yoshida, Taro Okada, Naoya Tsuboi, Yasuya Inden, Toyoaki Murohara, Andrew E. Epstein, Vance J. Plumb, Satinder P. Singh, G. Neal Kay The present study revealed the prevalence and electrocardiographic and electrophysiologic characteristics of the ventricular arrhythmias (VAs) originating from the aortic root. The R-wave amplitude ratio in leads II and III and local ventricular activation time relative to the QRS onset in the His bundle region were helpful for differentiating VAs with the 2 major aortic root origins of the left and right coronary cusps. The findings in this study may address the concept of VAs arising from the aortic root or left ventricular ostium instead of from the aortic sinus cusp, as usually used.