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Dive into the research topics where Ta-Chuan Tuan is active.

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Featured researches published by Ta-Chuan Tuan.


Journal of Cardiovascular Electrophysiology | 2009

Efficacy of Additional Ablation of Complex Fractionated Atrial Electrograms for Catheter Ablation of Nonparoxysmal Atrial Fibrillation

Yenn-Jiang Lin; Ching-Tai Tai; Shih-Lin Chang; Li-Wei Lo; Ta-Chuan Tuan; Wanwarang Wongcharoen; Ameya R. Udyavar; Yu-Feng Hu; Chien-Jung Chang; Wen-Chin Tsai; Tsair Kao; Satoshi Higa; F.H.R.S. Shih-Ann Chen M.D.

Background: The efficacy of ablation of complex fractionated atrial electrograms (CFEs) in the single ablation procedure for nonparoxysmal atrial fibrillation (AF) patients is not well demonstrated. The aim of this study was to compare the ablation strategies of pulmonary vein isolation (PVI) plus linear ablation with and without additional ablation of CFEs in these patients.


Journal of Cardiovascular Electrophysiology | 2007

The Efficacy of Inducibility and Circumferential Ablation with Pulmonary Vein Isolation in Patients with Paroxysmal Atrial Fibrillation

Shih-Lin Chang; Ching-Tai Tai; Yenn-Jiang Lin; Wanwarang Wongcharoen; Li-Wei Lo; Ta-Chuan Tuan; Ameya R. Udyavar; Sheng-Hsiung Chang; Hsuan-Ming Tsao; Ming-Hsiung Hsieh; Yu-Feng Hu; Yi-Jen Chen M.D.; Shih-Ann Chen

Introduction: Some conflicting results of the efficacy of the inducibility test used in the catheter ablation of atrial fibrillation (AF) have been reported. The aim of this study was to investigate the inducibility and efficacy of circumferential ablation with pulmonary vein isolation (PVI) in patients with paroxysmal AF and its relationship to the atrial substrate.


Journal of Cardiovascular Electrophysiology | 2007

Biatrial substrate properties in patients with atrial fibrillation.

Shih-Lin Chang; Ching-Tai Tai; Yenn-Jiang Lin; Wanwarang Wongcharoen; Li-Wei Lo; Ta-Chuan Tuan; Ameya R. Udyavar; Sheng-Hsiung Chang; Hsuan-Ming Tsao; Ming-Hsiung Hsieh; Yu-Feng Hu; Yi-Jen Chen; Shih-Ann Chen

Introduction: The atrial substrate plays an important role in the maintenance of atrial fibrillation (AF). Further investigation of the biatrial substrate may be helpful for understanding the mechanism of AF. The aim of this study was to investigate the properties of right and left atrial (RA and LA) substrate in AF patients and their impact on the catheter ablation.


Journal of Cardiovascular Electrophysiology | 2007

Progressive Remodeling of the Atrial Substrate—A Novel Finding from Consecutive Voltage Mapping in Patients with Recurrence of Atrial Fibrillation After Catheter Ablation

Li-Wei Lo; Ching-Tai Tai; Yenn-Jiang Lin; Shih-Lin Chang; Wanwarang Wongcharoen; Sheng-Hsiung Chang; Ming-Hsiung Hsieh; Ta-Chuan Tuan; Ameya R. Udyavar; Yi-Jen Chen M.D.; Hsuan-Ming Tsao; Shih-Ann Chen

Background: Atrial substrate properties have been demonstrated to be related to atrial arrhythmias. This study investigated whether the atrial substrate exhibits progressive remodeling in patients with recurrence of atrial fibrillation (AF) after catheter ablation.


Journal of Cardiovascular Electrophysiology | 2010

The Impact of Age on the Electroanatomical Characteristics and Outcome of Catheter Ablation in Patients with Atrial Fibrillation

Ta-Chuan Tuan; Shih-Lin Chang; Hsuan-Ming Tsao; Ching-Tai Tai; Yenn-Jiang Lin; Yu-Feng Hu; Li-Wei Lo; Ameya R. Udyavar; Chien-Jong Chang; Wen-Chin Tsai; Wei-Hua Tang; Kazuyoshi Suenari; Shih-Yu Huang; Pi-Change Lee; Shih-Ann Chen

Age and Atrial Fibrillation.u2002u2002Background: Previous studies have indicated that atrial fibrillation (AF) in patients over the age of 60 at diagnosis is a risk factor for a substantial increase in cardiovascular events. However, information about the impact of age on the atrial substrate and clinical outcome after catheter ablation of AF is limited.


Journal of Cardiovascular Electrophysiology | 2005

Catheter ablation of atrial fibrillation versus atrioventricular junction ablation plus pacing therapy for elderly patients with medically refractory paroxysmal atrial fibrillation.

Ming-Hsiung Hsieh; Ching-Tai Tai; Shih-Huang Lee; Huan-Ming Tsao; Yung-Kuo Lin; Jin-Long Huang; Paul Chan; Yi-Jen Chen; Jen-Yuan Kuo; Ta-Chuan Tuan; Tsui-Lieh Hsu; Chi-Woon Kong; Shih-Lin Chang; Shih-Ann Chen

Background: Catheter ablation of atrial fibrillation (AF) has become another nonpharmacologic therapeutic option for medically refractory paroxysmal AF. Whether this method is better than atrioventricular (AV) junction ablation plus pacing therapy is unknown. The purpose of this study was to compare the very long‐term (longer than 4 years) clinical outcomes of the 2 methods in elderly patients (>65 years old) with medically refractory paroxysmal AF.


Journal of Cardiovascular Electrophysiology | 2008

The important role of pulmonary vein carina ablation as an adjunct to circumferential pulmonary vein isolation.

Ameya R. Udyavar; Shih-Lin Chang; Ching-Tai Tai; Yenn-Jiang Lin; Li-Wei Lo; Ta-Chuan Tuan; Hsuan-Ming Tsao; Ming-Hsiung Hsieh; Yu-Feng Hu; Shuo-Ju Chiang; Yi-Jen Chen; Wanwarang Wongcharoen; Satoshi Higa; Kwo-Chang Ueng; Shih-Ann Chen

Objectives and Background: The success rate of achieving electrical isolation by circumferential pulmonary vein ablation (CPVA) varies from 32% to 88%. We carried out ablation at the pulmonary vein carina to evaluate the elimination rates of the pulmonary vein potentials (PVPs) after one round of CPVA had failed to eliminate all the PVPs in the patients with atrial fibrillation (AF).


Journal of Cardiovascular Electrophysiology | 2009

Induced atrial tachycardia after circumferential pulmonary vein isolation of paroxysmal atrial fibrillation: Electrophysiological characteristics and impact of catheter ablation on the follow-up results

Shih-Lin Chang; Yenn-Jiang Lin; Ching-Tai Tai; Li-Wei Lo; Ta-Chuan Tuan; Ameya R. Udyavar; Yu-Feng Hu; Shuo-Ju Chiang; Wanwarang Wongcharoen; Hsuan-Ming Tsao; Kwo-Chang Ueng; Satoshi Higa; Pi-Chang Lee; Shih-Ann Chen

Introduction: Atrial tachycardia (AT), including focal and reentrant AT, can occur after circumferential pulmonary vein isolation (CPVI). The aim of this study was to investigate the electrophysiological characteristics of induced AT and its clinical outcome.


Journal of Cardiovascular Electrophysiology | 2007

Mechanisms of Recurrent Atrial Fibrillation: Comparisons Between Segmental Ostial Versus Circumferential Pulmonary Vein Isolation

Li-Wei Lo; Ching-Tai Tai; Yenn-Jiang Lin; Shih-Lin Chang; Wanwarang Wongcharoen; Ming-Hsiung Hsieh; Ta-Chuan Tuan; Ameya R. Udyavar; Yu-Feng Hu; Yi-Jen Chen Md; Hsuan-Ming Tsao; Shih-Ann Chen

Background: Electrical isolation of pulmonary veins (PVs) is an effective therapy for atrial fibrillation (AF). Both segmental ostial PV ablation and circumferential ablation with PV–left atrial (LA) block have been implicated to eliminate AF. However, the mechanism of the recurrent AF after undergoing either strategy remains unclear.


Journal of Cardiovascular Electrophysiology | 2008

Electrophysiological Characteristics and Catheter Ablation in Patients with Paroxysmal Supraventricular Tachycardia and Paroxysmal Atrial Fibrillation

Shih-Lin Chang; Ching-Tai Tai; Yenn-Jiang Lin; Li-Wei Lo; Ta-Chuan Tuan; Ameya R. Udyavar; Hsuan-Ming Tsao; Ming Hsiung Hsieh; Yu-Feng Hu; Shuo-Ju Chiang; Yi-Jen Chen; Wanwarang Wongcharoen; Kwo-Chang Ueng; Shih-Ann Chen

Introduction: Paroxysmal supraventricular tachycardia (PSVT) is often associated with paroxysmal atrial fibrillation (AF). However, the relationship between PSVT and AF is still unclear. The aim of this study was to investigate the clinical and electrophysiological characteristics in patients with PSVT and AF, and to demonstrate the origin of the AF before the radiofrequency (RF) ablation of AF.

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Shih-Lin Chang

Taipei Veterans General Hospital

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Li-Wei Lo

National Yang-Ming University

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Shih-Ann Chen

Taipei Veterans General Hospital

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Yenn-Jiang Lin

Taipei Veterans General Hospital

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Yu-Feng Hu

Taipei Veterans General Hospital

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Ching-Tai Tai

Taipei Veterans General Hospital

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Hsuan-Ming Tsao

National Yang-Ming University

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Ameya R. Udyavar

Taipei Veterans General Hospital

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