1. Park JH, Kim SK, Pak HN, Park YD, Kim GL, Fang YH, Kim BS, Kim YH. Human mesenchymal stem cell transplantation with electrical pacing express nerve growth factor- and vascular endothelial growth factor by paracrine action, but reduces the expression of connexin 40/43 in dogs. 2007 Seoul Symposium on Stem Cell Research. 2007;2:96.

2. Kim SK, Pak HN, Park JH, Jang JK, Moon JY, Choi JI, Lim HE, Kim YH. Mobilization of CD34 positive bone marrow derived cells after titrated cardiac injury by radiofrequency catheter ablation of atrial fibrillation. 2007 Seoul Symposium on Stem Cell Research. 2007;2:96.

3. Park JH, Pak HN, Ko KJ, Kim SK, Jang JK, Choi JI, Lim HE, Hwang C, Kim YH. Underlying electrophysiologic properties of complex fractionated atrial electrograms in patients with atrial fibrillation. APAFS 2007;3S:353.

4. Park JS, Pak HN, Kim JH, Jang JK, Choi JI, Kim YH. Anti-thrombotic therapy pattern in patients with stroke/ transient ischemic attack and atrial fibrillation. APAFS 2007;3S:342.

5. Choi JI, Pak HN, Park SM, Park JS, Hong SJ, Lim HE, Lim DS, Shim WJ, Kim YH. Impact of radiofrequency catheter ablation for atrial fibrillation on the change in tricuspid regurgitation. APAFS 2007;3S:321.

6. Pak HN, Park JH, Choi EJ, Lee HS, Ko J, Kim SK, Shin SY, Jang JK, Choi JI, Lim HE, Hwang C, Kim YH. Anatomic variation of veins of Marshall affected the completeness of linear lesion at the perimitral isthmus. APAFS 2007;3S:307.

7. Lim HE, Kim YH, Kim SH, Pak HN, Ahn JC, Song WH, Lee JB, Shin C, Kim YH. Impact of obstructive sleep apnea on mechanoelectrical variables of the atrium. APAFS 2007;3S:271.

8. Kim YH, Lim HE, Kim SH, Park MY, Pak HN, Ahn JC, Song WH, Lee JB, Shin C, Kim YH. Mechano-electrical disparity as a parameter indicating the inhomogeneous substrate for atrial fibrillation. APAFS 2007;3S:227.

9. Kim SK, Pak HN, Park JH, Jang JK, Moon JY, Choi JI, Lim HE, Kim YH. Mobilization of CD34 positive bone marrow derived cells after titrated cardiac injury by radiofrequency catheter ablation of atrial fibrillation. APAFS 2007;3S:217.

10. Choi JI, Lim HE, Shin SY, Jan JK, Kim JS, Lee HS, Ko KJ, Moon JY, Pak HN, Kim YH. Does left septal bundle ablation have incremental value in catheter ablation for paroxysmal and persistent atrial fibrillation? APAFS 2007;3S:175.

11. Choi JI, Ryu K, Park EJ, Jang JK, Park JS, Lee HS, Ko KJ, Moon JY, Lim NS, Lim HE, Pak HN, Kim YH. Linear multisite pacing for prevention of atrial fibrillation: comparative effects of single vs. triple site pacing at the area of complex fractionated atrial electrogram. APAFS 2007;3S:160.

12. Pak HN, Hwang C, Lim HE, Kim YH. Hybrid epicardial and endocardial ablation of persistent atrial fibrillation: new approach for difficult cases. APAFS 2007;3S:105.

13. Pak HN, Joo HJ, Shin IY, Kim YH. A case of cerebral venous infarction related to an atrio-esophageal fistula after radiofrequency catheter ablation of atrial fibrillation. APAFS 2007;3S:74.

14. Jang JK, Park JS, Choi JI, Lim HE, Pak HN, Jeong SJ, Kim YH. Spatial distribution of complex fractionated atrial electrogram and dominant frequency area in patients with atrial fibrillation. APAFS 2007;3S:268

15. Pak HN, Lim HE, Kim JS, Kim GI, Weo YS, Fang YH,. Kim BS, Hwang C, Chen PS, Kim YH. Human mesenchymal stem cell transplantation in caninve myocardial infarction model induces NGF- expression by paracrine action resulting in sympathetic nerve sprouting and proarrhythmia. Heart Rhythm. 2007;4:S55.

16. Pak HN, Shin SR, Lim HE, Kim JS, Lee HS, Choi JI, Hwang C, Kim YH. Characteristics of ventricular tachycardia originated from aortic cusp and anterior interventricular epicardium: epicardial conduction properties from aortic cusp and their ablation outcomes. Heart Rhythm. 2007;4:S330.

17. Kim YH, Lim HE, Kim JS, Choi JI, Lee HS, Ko KJ, Pak, HN. Septopulmonary bundle potentials guided linear ablation in interatrial septum in patients with atrial fibrillation. Heart Rhythm. 2007;4:S325.

18. Lim HE, Pak HN, Kim JS, Ahn JC, Song WH, Lee JB, Kim YH. Association of nocturnal arrhythmias with sleep disorderd breathing in middle-aged Korean men and women. Heart Rhythm. 2007;4:S251.

19. Kim YH, Kim JS, Lim HE, Ko KJ, Lee HS, Kim NY, Moon JY, Pak HN. Prospective randomized comparison of tow catheter ablation techniques in AF: circumferential PV anatormical + electrical isolation vs. combination with elimination of residual potentials inside ablation lines. Heart Rhythm. 2007;4:S15.

20. Pak HN, Shin SR, Kim JS, Lim HE, Lee HS, Hwang C, Kim YH. Epicardial conduction property of aortic cusp origin premature ventricular contractions and their ablation outcomes. Europace. 2006;9(1):139.

21. Pak HN, Lim HE, Kim JS, Choi JI, Kim YH. EnSite guided superior vena cava isolation in atrial fibrillation ablation: technique and results. APAFS 2006;2S:67

22. Kim YH, Lim HE, Kim JS, Choi JI, Pak HN. PV isolation and LA substrate ablation using NavX. APAFS 2006;2S:42

23. Lim HE, Pak HN, Ko KJ, Lee HS, Kim JS, Ahn JC, Song WH, Kim YH. Non-pulmonary vein foci of atrial fibrillation. APAFS 2006;2S:109.

24. JS Kim, Pak HN, Lim HE, Choi JI, Lee HS, Kim YH. Is selective pulmonary vein isolation comparable to empirical four pulmonary vein isolation for focally triggered atrial fibrillation? APAFS 2006;2S:112.

25. Lim HE, Pak HN, Ko KJ, Lee HS, Kim JS, Ahn JC, Song WH, Kim YH. Predictors of recurrence of radiofrequency catheter ablation of atrial fibrillation. APAFS 2006;2S:125.

26. Kim YH, Kim JS, Namgoong J, Prak SW, Lim HE, Choi JI, Shin SH, Hong SJ, Pak HN. Prospective comparison of circumferential pulmonary vein anatomical + electrical isolation and elimination of residual potentials inside ablation lines in AF ablation. APAFS 2006;2S:134.

27. Choi JI, Pak HN, Jin JH, Kim JS, Lim HE, Kim YH. Biochemical predictors of recurrence after catheter ablation for atrial fibrillation. APAFS 2006;2S:137.

28. Kim JS, Lim HE, Pak HN, Kim YH. Comparison of 8 mm tip vs. irrigation tip ablation catheters in radiofrequency ablation of atrial fibrillation. APAFS 2006;2S:138.

29. Pak HN, Lim HE, Kim JS, Shin SR, Ko KJ, Choi JI, Kim YH. Relationship between the immediate result of external cardioversion and the long term outcome after catheter ablation of chronic persistent atrial fibrillation. APAFS 2006;2S:133.

30. Pak HN, Kim JS, Fang YH, Kim GI, Lim HE, Ryu JY, Kim BS, Hwang C, Kim YH. Xenograft of human mesenchymal stem cells to canine myocardial infarction model with or without epicardial pacing has no immune rejection, but proarrhythmia and sympathetic nerve sprouting. Circulation. 2006;

31. Kim JS, Pak HN, Lim HE, Jin JH, Kang JW, Ro YM, Kim YH. Immediate effects of circumferential left atial ablation on the left atiral dimension and ejection fraction fraction in patients with atrial fibrillation. Europace. 2006;8:218P17.

32. Lim HE, Pak HN, Ko KJ, Jin JH, Lee HS, Kim JS, Ro YM, Kim YH. Real-time esophagogram during catheter ablation of atrial fibrillation. Eurpace. 2006;8:218P33.

33. Kim Y-H, Pak H-N, Lim HE, Kim JS, Shin SH, Park MY, Shim WJ, Ro YM. Low voltage mapping and dominant frequency analysis of left atiral fibrillation. Heart Rhythm. 2006;3:S328.

34. Pak H-N, Hwang C, Lim HE, Shin DG, Kim Y-H. Pulmonary vein isolation in patient with absent inferior vena cava and paroxysmal atrial fibrillation: superior transseptal approach. APAFS. 2005;1S:108.

35. Pak HN. Can virtual FFT prove driving mechanisms of atrial fibrillation? APAFS. 2005;1S:84.

36. Pak HN, Lim HE, Kim JS, Lee HS, Hwnag C, Ro YM, Kim YH. Focally triggered atrial fibrillation: selective pulmonary vein isolation or empirical four pulmonary vein isolation? APAFS. 2005;1S:198.

37. Lim HE, Pak HN, Kim JS, Ko KJ, Jin JH, Lee HS, Ro YM, Kim YH. Clinical usefulness of inducibility of atrial tachyarrhythmia as a predictor of ling term outcome of catheter ablation of atrial fibrillation. APAFS. 2005;1S:162.

38. Lim HE, Kim EJ, Fang YH, Sun K, Kim JS, Pak HN, Ro YM, Kim YH. Heterogeneity of Gap junction and sympathetic innervation is related to the atrial activation of canine persistent atrial fibrillation induced by rapid atrial pacing. APAFS. 2005;1S:167.

39. Kim JS, Pak HN, Lim HE, Park MY, Shin SH, Shim WJ, Ro YM, Kim YH. Response of pulmonary vein potentials to extrastimulation can predict arrhythmogenic pulmonary vein in patients with paroxysmal atrial fibrillation. APAFS. 2005;1S:183.

40. Kim YH, Lim HE, Pak HN, Kim JS, Park MY, Shin SH, Shim WJ, Ro YM. Clinical outcome of catheter ablation for atrial fibrillation in patients with left ventricular dysfunction. APAFS. 2005;1S:208.

41. Lim HE, Pak HN, Kim JS, Wang YS, Ko KJ, Jin JH, Lee HS, Ro YM, Kim YH. Real-time esophagogram during catheter ablation of atrial fibrillation. APAFS. 2005;1S:209.

42. Lim HE, Pak HN, Kim JS, Ko KJ, Jin JH, Lee HS, Ro YM, Kim YH. Clinical outcome of catheter ablation in patients with tachycardia-bradycardia syndrome related to atrial fibrillation. APAFS. 2005;1S:275.

43. Lim HE, Pak HN, Kim JS, Ko KJ, Jin JH, Lee HS, Ro YM, Kim YH. Cause of recurrent thrombocytopenia after catheter ablation of atrial fibrillation. APAFS. 2005;1S:294.

44. Pak H-N, Lim HE, Ro YM, Kim Y-H. Characteristic of focal atrial tachycardia arising from crist terminalis or coronary sinus with multiple activation sequences. Europace. 2005;7S:104.

45. Oh YS, Pak H-N, Miyauchi Y, Lin Y-B, Hayashi H, Karagueuzian HS, Chen P-S, Lin S-F. Effect of hypothermia on action potential duration restitution and initiation of ventricular arrhythmias in mouse hearts: an optical mapping study. Europace. 2005;7S:16.

46. Lim HE, Pak H-N, Lee HS, Ro YM, Kim Y-H. Radiofrequency catheter ablation of hemodynamically unstable ventricular tachycardia. Europace. 2005;7S:28.

47. Ko KJ, Lim HE, Pak H-N, Lee HS, Jin JH, Ro YM, Kim Y-H. Which factors affect the incidence of atrial fibrillation in patients with sinus node dysfunction after pacemaker implantation? Europace. 2005;7S:174.

48. Pak HN, Kim YH, Lim HE, Chou CC, Miyauchi Y, Fang YH, Sun K, Hwang C, Chen PS. Posterior papillary muscle as an anchor to the reentrant wavefronts during ventricular fibrillation in open chest dogs and swine: effects of catheter ablation. Heart Rhythm. 2005;2:S587.

49. Lim HE, Pak HN, Lee HS, Hwnag C, Ro YM, Kim YH. Significance of atrial flutter after catheter ablation of atrial fibrillation: impact of the different ablation techniques. Heart Rhythm 2005;2:S273.

50. Kim YH, Lim HE, Pak HN, Lee HS, Ko KJ, Jin JG, Shin SH, Park MY, Ro YM, Hwang C. Recurrence of atrial fibrillation after initially successful pulmonary vein isolation. Heart Rhythm. 2005;2:S274.

51. Lim HE, Pak HN, Kim JS, Fang YH, Sun K, Ro YM, Kim YH. Driving mechanisms of acutely onset of canine atrial fibrillation under the vagal stimulation. Heart Rhythm 2005;2:S298.

52. Pak HN, EJ Kim, JW Kim, HS Lee, DS Lim, WJ Shim, YM Ro, Y-H Kim. Effective Segmental Pulmonary Vein Ablation Guided by Mapping of Activations Through Left Atrium-Pulmonary Vein Junction. Circulation 2003;108(17):IV-585.

53. Pak HN, Oh Y, Liu Y-B, Karagueuzian H, Lin S-F, Chen P-S. Catheter ablation of ventricular fibrillation in rabbit ventricles treated with beta-blockers. PACE. 2003;26:911.

54. Chou C-C, Zhou S, Miyauchi Y, Pak HN, Okuyama Y, Chen P-S: Computerized Mapping of Thoracic Veins and Left Atrium During Procainamide Administration in a Canine Model of Chronic Pacing-Induced Sustained Atrial Fibrillation. PACE. 2003:26;950.

55. Kim Y-H, Rha SW, Park SW, Pak HN, Lim DS, Shim WJ, Ro YM. Wave front dynamics during atrial fibrillation with repetitive pulmonary vein tachycardia. PACE. 2003;26:1006.

56. Liu YB, Pak HN, Okuyama Y, Hayashi H, Chen PS, Lin SF. Spatial Heterogeneity of Electrical Restitution During Regional Ischemia in Rabbit Ventricles: Effects on Wavebreaks During Ventricular Fibrillation. J Am Coll Cardiol. 2003;41:734A.

57. Pak H, Liu Y, Hayashi H, Okuyama Y, Chen PS, Lin SF. Ventricular defibrillation by optical recording guided feedback pacing in the excitable gaps. Circulation 2002;106(19):II-128.

58. Okuyama Y, Pak H, Liu Y, Suh G, Miyauchi Y, Park AM, Hayashi H, Chen LS, Fishbein MC, Chen PS. Sympathetic nerve sprouting induced by radiofrequency catheter ablation in dogs. Circulation 2000;106(19):II-177.

59. Liu Y, Pak H, Okuyama Y, Hayashi H, Chen PS, Lin SF. Ischemic region as a source of rapid activation during ventricular fibrillation. Circulation 2002;106(19):II-191.

60. Hamabe A, Okuyama Y, Miyauchi Y, Zhou S, Pak H, Karagueuzian HS, Fishbein MC, Chen PS. Correlation between anatomy and electrical activation in canine pulmonary veins. Circulation 2002;106(19):II-179.

61. Pak H, Qayyum M, Lai AC, Kim T, Hamabe A, Miyauchi Y, Lill MC, Takizawa K, Fishbein MC, Sharifi BG, Chen PS, Makkar R. Mesenchymal stem cell injection induces cardiac nerve sprouting and tenascin expression in a swine model of myocardial infarction. J Am Coll Cardiol. 2002:39(5):445A.

62. Okuyama Y, Miyauchi Y, Park AM, Hamabe A, Zhou S, Hayashi H, Miyauchi M, Omichi C, Pak H, Brodsky L, Karagueuzian HS, Chen PS. High density pulmonary vein mapping showing rapid focal discharges during atrial fibrillation in dogs with pacing induced heart failure. Circulation. 2001;104(17):II-78.

63. Pak HN, Kim Y-H, Lee SC, Lee HS, Shim WJ, Oh DJ, Ro YM. Relationship between action otential duration restitution kinetics and induction of ventricular tachycardia/fibrillation in human. PACE. 2001:24;722.

64. Pak HN, Kim YH, Sun K, Shin SH, Lee SJ, Hwang GS, Shim WJ, Oh DJ, Ro YM. Antiventricular fibrillation and antirestitution properties of sotalol. PACE. 2000;23(4):672.

65. Lee SJ, Kim Y-H, Kim SJ, Lee HS, Pak HN, Kim BS, Hwang GS, Shim WJ, Oh DJ, Ro YM. Restitution properties at the time of initiation and termination of ventricular fibrillation.Japanese Circulation Society 2000 (abstract).