S A Chen

Summary

Affiliation: Taipei Veterans General Hospital
Country: Taiwan

Publications

  1. ncbi request reprint Radiofrequency catheter ablation of atrial fibrillation initiated by spontaneous ectopic beats
    S A Chen
    Division of Cardiology, Taipei Veterans General Hospital, 201 Sec 2, Shih Pai Road, Taipei, Taiwan, R O C
    Curr Cardiol Rep 2:322-8. 2000
  2. ncbi request reprint AV nodal reentrant tachycardia with unusual characteristics: lessons from radiofrequency catheter ablation
    S A Chen
    Department of Medicine, National Yang Ming University, School of Medicine, and Veterans General Hospital Taipei, Taiwan, Republic of China
    J Cardiovasc Electrophysiol 9:321-33. 1998
  3. ncbi request reprint Right atrial focal atrial fibrillation: electrophysiologic characteristics and radiofrequency catheter ablation
    S A Chen
    Department of Medicine, National Yang Ming University, School of Medicine, Taipei, Taiwan, Republic of China
    J Cardiovasc Electrophysiol 10:328-35. 1999
  4. ncbi request reprint Radiofrequency catheter ablation of atrial fibrillation initiated by pulmonary vein ectopic beats
    S A Chen
    Department of Medicine, National Yang Ming University, School of Medicine, and Veterans General Hospital Taipei, Taiwan, Republic of China
    J Cardiovasc Electrophysiol 11:218-27. 2000
  5. ncbi request reprint Initiation of atrial fibrillation by ectopic beats originating from the pulmonary veins: electrophysiological characteristics, pharmacological responses, and effects of radiofrequency ablation
    S A Chen
    Division of Cardiology, National Yang Ming University, and Veterans General Hospital Taipei, Taiwan, ROC
    Circulation 100:1879-86. 1999
  6. ncbi request reprint Differentiating the ligament of Marshall from the pulmonary vein musculature potentials in patients with paroxysmal atrial fibrillation: electrophysiological characteristics and results of radiofrequency ablation
    C T Tai
    Department of Medicine, National Yang Ming University School of Medicine, Taipei Veterans General Hospital, Taiwan, R O C
    Pacing Clin Electrophysiol 23:1493-501. 2000
  7. ncbi request reprint Effect of phenylephrine on focal atrial fibrillation originating in the pulmonary veins and superior vena cava
    C T Tai
    Department of Medicine, National Yang Ming University School of Medicine, Taipei Veterans General Hospital, Taiwan, ROC
    J Am Coll Cardiol 36:788-93. 2000
  8. ncbi request reprint Electrophysiologic characteristics in initiation of paroxysmal atrial fibrillation from a focal area
    T M Lu
    Department of Medicine, National Yang-Ming University, School of Medicine, Taipei, Taiwan, Republic of China
    J Am Coll Cardiol 37:1658-64. 2001
  9. ncbi request reprint Effects of cavotricuspid isthmus ablation on atrioventricular node electrophysiology in patients with typical atrial flutter
    C T Tai
    Division of Cardiology, Department of Medicine, Cardiovascular Research Center, National Yang Ming University School of Medicine, and Taipei Veterans General Hospital, Taipei, Taiwan, ROC
    Circulation 104:1501-5. 2001
  10. ncbi request reprint Persistent atrial flutter in patients treated for atrial fibrillation with amiodarone and propafenone: electrophysiologic characteristics, radiofrequency catheter ablation, and risk prediction
    C T Tai
    Department of Medicine, National Yang Ming University, School of Medicine, Veterans General Hospital Taipei, Taiwan, Republic of China
    J Cardiovasc Electrophysiol 10:1180-7. 1999

Collaborators

Detail Information

Publications33

  1. ncbi request reprint Radiofrequency catheter ablation of atrial fibrillation initiated by spontaneous ectopic beats
    S A Chen
    Division of Cardiology, Taipei Veterans General Hospital, 201 Sec 2, Shih Pai Road, Taipei, Taiwan, R O C
    Curr Cardiol Rep 2:322-8. 2000
    ..Owing to the potential risk and complexity of catheter ablation, the ideal candidates should have frequent episodes and drug refractory paroxysmal atrial fibrillation...
  2. ncbi request reprint AV nodal reentrant tachycardia with unusual characteristics: lessons from radiofrequency catheter ablation
    S A Chen
    Department of Medicine, National Yang Ming University, School of Medicine, and Veterans General Hospital Taipei, Taiwan, Republic of China
    J Cardiovasc Electrophysiol 9:321-33. 1998
    ..Application of radiofrequency energy within the AV junctional area should always be performed carefully to achieve a successful ablation procedure and to minimize possible injury of AV nodal conduction...
  3. ncbi request reprint Right atrial focal atrial fibrillation: electrophysiologic characteristics and radiofrequency catheter ablation
    S A Chen
    Department of Medicine, National Yang Ming University, School of Medicine, Taipei, Taiwan, Republic of China
    J Cardiovasc Electrophysiol 10:328-35. 1999
    ..The purposes of this study were to demonstrate the electrophysiologic characteristics and radiofrequency catheter ablation in patients who had right atrial focal AF...
  4. ncbi request reprint Radiofrequency catheter ablation of atrial fibrillation initiated by pulmonary vein ectopic beats
    S A Chen
    Department of Medicine, National Yang Ming University, School of Medicine, and Veterans General Hospital Taipei, Taiwan, Republic of China
    J Cardiovasc Electrophysiol 11:218-27. 2000
    ..This article describes the conceptual approach to mapping, interpretation of different electrograms, and ablation of AF initiated by PV ectopic beats...
  5. ncbi request reprint Initiation of atrial fibrillation by ectopic beats originating from the pulmonary veins: electrophysiological characteristics, pharmacological responses, and effects of radiofrequency ablation
    S A Chen
    Division of Cardiology, National Yang Ming University, and Veterans General Hospital Taipei, Taiwan, ROC
    Circulation 100:1879-86. 1999
    ....
  6. ncbi request reprint Differentiating the ligament of Marshall from the pulmonary vein musculature potentials in patients with paroxysmal atrial fibrillation: electrophysiological characteristics and results of radiofrequency ablation
    C T Tai
    Department of Medicine, National Yang Ming University School of Medicine, Taipei Veterans General Hospital, Taiwan, R O C
    Pacing Clin Electrophysiol 23:1493-501. 2000
    ..In conclusion, differentiating the LAT from the PV potentials for initiation of PAF is feasible by an electrophysiological approach, and may be important for radiofrequency ablation of PAF...
  7. ncbi request reprint Effect of phenylephrine on focal atrial fibrillation originating in the pulmonary veins and superior vena cava
    C T Tai
    Department of Medicine, National Yang Ming University School of Medicine, Taipei Veterans General Hospital, Taiwan, ROC
    J Am Coll Cardiol 36:788-93. 2000
    ..This study was aimed at evaluating the effects of phenylephrine infusion on the occurrence of focal atrial fibrillation (AF)...
  8. ncbi request reprint Electrophysiologic characteristics in initiation of paroxysmal atrial fibrillation from a focal area
    T M Lu
    Department of Medicine, National Yang-Ming University, School of Medicine, Taipei, Taiwan, Republic of China
    J Am Coll Cardiol 37:1658-64. 2001
    ..Moreover, the electrophysiologic characteristics in the initiation of AF originating from the SVC were also different from those of AF initiating from the PVs...
  9. ncbi request reprint Effects of cavotricuspid isthmus ablation on atrioventricular node electrophysiology in patients with typical atrial flutter
    C T Tai
    Division of Cardiology, Department of Medicine, Cardiovascular Research Center, National Yang Ming University School of Medicine, and Taipei Veterans General Hospital, Taipei, Taiwan, ROC
    Circulation 104:1501-5. 2001
    ..The atrial musculature in the cavotricuspid isthmus is a part of posterior inputs to the AV node. In patients with typical atrial flutter, effects of radiofrequency ablation of this isthmus on AV node conduction are still unknown...
  10. ncbi request reprint Persistent atrial flutter in patients treated for atrial fibrillation with amiodarone and propafenone: electrophysiologic characteristics, radiofrequency catheter ablation, and risk prediction
    C T Tai
    Department of Medicine, National Yang Ming University, School of Medicine, Veterans General Hospital Taipei, Taiwan, Republic of China
    J Cardiovasc Electrophysiol 10:1180-7. 1999
    ..Furthermore, the determinants of the development of persistent atrial flutter in patients treated for atrial fibrillation with antiarrhythmic drugs are still unknown...
  11. ncbi request reprint Acquired pulmonary vein stenosis after radiofrequency catheter ablation of paroxysmal atrial fibrillation
    W C Yu
    Department of Medicine, National Yang-Ming University, and Taipei Veterans General Hospital, Taiwan, Republic of China
    J Cardiovasc Electrophysiol 12:887-92. 2001
    ..However, ablation within multiple PVs might cause pulmonary hypertension and should be considered a limiting factor in this procedure...
  12. ncbi request reprint Electrophysiologic characteristics and radiofrequency catheter ablation in patients with multiple atrioventricular nodal reentry tachycardias
    C T Tai
    Department of Medicine, National Yang Ming University, School of Medicine, Taipei, Taiwan, Republic of China
    Am J Cardiol 77:52-8. 1996
    ..Radiofrequency catheter ablation was safe and effective in eliminating the slow and intermediate pathways for maintenance of multiple AV nodal reentry tachycardias...
  13. ncbi request reprint Mechanism of spontaneous transition from typical atrial flutter to atrial fibrillation: role of ectopic atrial fibrillation foci
    M H Hsieh
    Division of Cardiology, Department of Medicine, National Yang-Ming University, School of Medicine, and Taipei Veterans General Hospital, Taiwan, ROC
    Pacing Clin Electrophysiol 24:46-52. 2001
    ....
  14. ncbi request reprint Complex electrophysiological characteristics in atrioventricular nodal reentrant tachycardia with continuous atrioventricular node function curves
    C T Tai
    Division of Cardiology, School of Medicine, National Yang Ming University, Taipei, Taiwan, ROC
    Circulation 95:2541-7. 1997
    ..Significant shortening of the maximal AH interval during atrial pacing after radiofrequency ablation suggests successful elimination of AVNRT...
  15. ncbi request reprint Radiofrequency catheter ablation of common atrial flutter: comparison of electrophysiologically guided focal ablation technique and linear ablation technique
    S A Chen
    Division of Cardiology, Department of Medicine, Veterans General Hospital Taipei, Taiwan, Republic of China
    J Am Coll Cardiol 27:860-8. 1996
    ..Radiofrequency ablation of the common atrial flutter circuit was safe and effective with either the electrophysiologically guided focal ablation or linear ablation technique. However, the linear ablation technique was time-saving...
  16. ncbi request reprint Role of right middle pulmonary vein in patients with paroxysmal atrial fibrillation
    H M Tsao
    Department of Medicine, National Yang-Ming University, School of Medicine, Taiwan, Republic of China
    J Cardiovasc Electrophysiol 12:1353-7. 2001
    ..CONCLUSION: RMPV was detected by MRA in >80% of paroxysmal AF patients. Ectopy from RMPV can initiate AF, and radiofrequency ablation of RMPV foci is feasible and safe...
  17. ncbi request reprint Pulmonary vein dilation in patients with atrial fibrillation: detection by magnetic resonance imaging
    H M Tsao
    Department of Medicine, National Yang-Ming University, School of Medicine, and Taipei Veterans General Hospital, Taiwan, Republic of China
    J Cardiovasc Electrophysiol 12:809-13. 2001
    ..Only 28% patients showed arrhythmogenic foci from the largest PV. CONCLUSION: Significant dilation of both superior PVs with simultaneous LA enlargement was demonstrated i..
  18. ncbi request reprint Mechanisms of transition between double paroxysmal supraventricular tachycardias
    J Y Kuo
    Department of Medicine, National Yang-Ming University, School of Medicine, and Veterans General Hospital-Taipei, Taiwan
    J Cardiovasc Electrophysiol 12:1339-45. 2001
    ..CONCLUSION: Double supraventricular tachycardias with similar tachycardia cycle lengths are vulnerable to transition between different tachycardias...
  19. ncbi request reprint Hyperventilation facilitates induction of supraventricular tachycardia: a novel method and the possible mechanism
    C C Chen
    Show-Chwan Memorial Hospital, Changhua, Taiwan, Republic of China
    J Cardiovasc Electrophysiol 12:1242-6. 2001
    ..CONCLUSION: Hyperventilation can facilitate induction of SVT. Improvement of conduction properties and changes of autonomic function are the possible mechanisms...
  20. ncbi request reprint Prolonged fractionation of paced right atrial electrograms in patients with atrial flutter and fibrillation
    C T Tai
    Department of Medicine, National Yang Ming University School of Medicine, Taipei Veterans General Hospital, Taiwan
    J Am Coll Cardiol 37:1651-7. 2001
    ..This study investigated the extent of fractionation of paced right atrial electrograms in patients with and without paroxysmal atrial flutter (AFL) or atrial fibrillation (AF)...
  21. pmc Effect of K201, a novel antiarrhythmic drug on calcium handling and arrhythmogenic activity of pulmonary vein cardiomyocytes
    Y J Chen
    Division of Cardiovascular Medicine, Taipei Medical University Wan Fang Hospital, Taipei, Taiwan
    Br J Pharmacol 153:915-25. 2008
    ..The purpose of this study was to investigate the effects of K201 on the arrhythmogenic activity and calcium regulation of pulmonary vein cardiomyocytes...
  22. pmc Mechanoelectrical feedback regulates the arrhythmogenic activity of pulmonary veins
    S L Chang
    Division of Cardiology and Cardiovascular Research Center, National Yang Ming University School of Medicine and Veterans General Hospital, Taipei, Taiwan
    Heart 93:82-8. 2007
    ..Atrial fibrillation is commonly associated with dilated pulmonary veins. Stretch has been shown to have mechano-electrical effects...
  23. pmc Termination of digitalis-induced ventricular tachycardias by clonidine involves central alpha 2-adrenoceptors in cats
    S A Chen
    Division of Cardiology, Taipei Veterans General Hospital, Taiwan
    Br J Pharmacol 103:1114-8. 1991
    ..Since small doses of Clon administered i.a. act predominantly on the central nervous system, we suggest that its antiarrhythmic effect is likely to be on central alpha 2-adrenoceptors in the central nervous system...
  24. ncbi request reprint Genistein directly induces cardiac CFTR chloride current by a tyrosine kinase-independent and protein kinase A-independent pathway in guinea pig ventricular myocytes
    C E Chiang
    Division of Cardiology, Veterans General Hospital Taipei and National Yang Ming University School of Medicine, Taiwan, Republic of China
    Biochem Biophys Res Commun 235:74-8. 1997
    ..It is possible that genistein opens the channels directly or inhibits the dephosphorylation process of CFTR, which is not sensitive calyculin A...
  25. ncbi request reprint Atypical atrial flutter involving the isthmus between the right pulmonary veins and fossa ovalis
    C T Tai
    Division of Cardiology, Department of Medicine, National Yang Ming University School of Medicine, Taipei Veterans General Hospital, Taiwan, R O C
    Pacing Clin Electrophysiol 24:384-7. 2001
    ..Entrainment mapping demonstrated a protected isthmus between the right pulmonary veins and the fossa ovalis. Radiofrequency ablation of this isthmus terminated atrial flutter without recurrence during the follow-up period...
  26. ncbi request reprint Effects of rapid atrial pacing on the arrhythmogenic activity of single cardiomyocytes from pulmonary veins: implication in initiation of atrial fibrillation
    Y J Chen
    Department of Medicine, Institute of Clinical Medicine, Cardiovascular Research Center, National Yang-Ming University School of Medicine, Veterans General Hospital-Taipei, Taipei, Taiwan
    Circulation 104:2849-54. 2001
    ..CONCLUSIONS: PVs contain multiple cardiomyocytes with distinct electrophysiological characteristics. RAP changes the electrophysiological characteristics and arrhythmogenic activity of PVs...
  27. ncbi request reprint A randomized, prospective comparison of anterior and posterior approaches to atrioventricular junction modification of medically refractory atrial fibrillation
    S H Lee
    Shin Kong Wu Ho Su Memorial Hospital, National Yang Ming University, Taipei, Taiwan
    Pacing Clin Electrophysiol 23:966-74. 2000
    ....
  28. ncbi request reprint Sudden changes in heart rate variability during the 1999 Taiwan earthquake
    J L Huang
    Institute of Clinical Medicine of National Yang-Ming University, School of Medicine, and Department of Medicine, Taichung-Veterans General Hospital, Taiwan
    Am J Cardiol 87:245-8, A9. 2001
    ..Sympathovagal imbalance resulting from reactions to an earthquake was not prominent in patients who were taking beta-blockers...
  29. ncbi request reprint Effect of nitric oxide on strophanthidin-induced ventricular tachycardia
    Y J Chen
    Division of Cardiovascular Medicine, Taipei Medical College and affiliated Wan Fang Hospital, Taipei, Taiwan
    Pharmacology 62:213-7. 2001
    ..These findings suggest that L-arginine was effective in treating strophanthidin-induced ventricular tachycardia in vivo and that the underlying mechanism is through a NO pathway...
  30. ncbi request reprint Clinical and electrophysiological characteristics in children with atrioventricular nodal reentrant tachycardia
    P C Lee
    Department of Pediatrics, Taipei Veterans General Hospital and National Yang Ming University, Taipei, Taiwan
    Pediatr Cardiol 24:6-9. 2003
    ..This study demonstrated that pediatric patients have different electrophysiologic characteristics from those of adult patients...
  31. ncbi request reprint Mechanisms of antiarrhythmic drug action on termination of atrial flutter
    C T Tai
    Division of Cardiology, Department of Medicine, National Yang Ming University School of Medicine, Taipei Veterans General Hospital, Taiwan, R O C
    Pacing Clin Electrophysiol 24:824-34. 2001
    ..Because ventricular proarrhythmia is a major concern with ibutilide or dofetilide therapy, development of new drugs with more specific target profiles is a future direction for treatment of human atrial flutter...
  32. doi request reprint Long-term follow-up of arrhythmia characteristics and clinical outcomes in heart transplant patients
    H Y Chang
    Division of Cardiology, Cheng Hsin General Hospital, Taipei, Taiwan
    Transplant Proc 45:369-75. 2013
    ..This study sought to investigate the characteristics of the arrhythmias among biatrial orthotopic HT patients during long-term follow-up...
  33. ncbi request reprint Intravenous amiodarone for prevention of atrial fibrillation after coronary artery bypass grafting
    S H Lee
    Division of Cardiology, Shin Kong Wu Ho Su Memorial Hospital, and National Yang Ming University, Taipei, Taiwan
    Ann Thorac Surg 70:157-61. 2000
    ..This prospective study assesses the safety and efficacy of low-dose intravenous amiodarone in the prevention of atrial fibrillation after coronary artery bypass grafting...