1. Atrioventricular valve incompetence in 3 patients.

2. An ECG showed a new primary atrioventricular block.

3. Atrioventricular bundle usually occurred in virus myocarditis.

4. Why is atrioventricular canal a concern?

5. Objective:To study the morphological changes of atrioventricular junction area (atrioventricular node and atrioventricular bundle) on the myocardial ischemia model of rat.

6. Methods The structures of rabbit atrioventricular node tissue were observed by semi-thin and ultra-thin sections under light microscope.

7. Results The cell type of atrioventricular node in fetus hearts were composed of light, dark and transitional cells.

8. Objective: To investigate the morphological basis of atrioventricular junctional modification using radiofrequency ablation.

9. Objective To determine the prognostic effect of complete atrioventricular block(CAVB) in patients with acute inferior myocardial infarction(AIMI) with and without right ventricular involvement(RVI).

10. Objective : To investigate the aging changes of atrioventricular node ( AVN ) and His bundle.

11. Methods HE staining was applied on the frozen sections of adult rat heart to identify the sinoatrial node (SAN), atrioventricular node (AVN), and posterior nodal extension (PNE).

12. A 55 - year - old man was admitted to the hospital because of second - degree atrioventricular block.

13. AIM : To summarize the experience of radiofrequency catheter ablation ( RFCA ) in patients with atrioventricular reentry tachycardia.

14. Results: Adrenergic fibers largely exist in adult cardiac conduction system, which mainly located in atrionector, little in atrioventricular node, and less in atrioventricular bundle.

15. Manifest APs were mapped and ablated during sinus rhythm and concealed APs were mapped and ablated during orthodromic atrioventricular reentrant tachycardia (AVRT).

16. Objective: To observe the effect of experimental myocardial lesion on dehydrogenase in rat atrioventricular node area and to discuss the mechanism of arrhythmia induced by myocardial lesion.

17. We report two young male patients with documented tuberculous serositis that were complicated with high-degree atrioventricular block (AV block) during the course of the disease.

18. Conclusion The results suggest that dle effect of parasympathetic nerve activity on atrioventricular node function is larger than that of sinoatrial node.

19. Methods: The hearts of 171 Chinese adults were measured valve regions of the right atrioventricular valve.

20. It is characterized by sinoatrial node dysfunction and often includes atrioventricular node disease and bundle branch block.

21. Long - term isoproterenol infusion also induced premature ventricular contractions and atrioventricular heart block in junction - null mice.

22. Results: 71.2 % patients were recovered within 6 years without any treatment ,() only 1 patient died of atrioventricular block ( AVB ) .

23. Infiltrative myocardial diseases, including amyloidosis, hemochromatosis, and sarcoidosis, may be associated with atrioventricular block.

24. The present results suggest that the parasympathetic fibers in the atrioventricular node and the bundle of His originate from the cholinergic neurons in the interatrial septum.

25. There is this specially adapted system of muscle and nerve tissue in the heart—the sinoatrial (SA) node, the atrioventricular node, and the Purkinje fibers—which sets the rhythm of the heart.

26. The distension of the coronary sinus will appear as a transverse line (roughly parallel to the atrioventricular valve) in the lower aspect of the left atrium.

27. A single lead VDD pacing system (Dromos SL and SL 60/13 up) was implanted in 13 patients with high degree atrioventricular block(AVB) and normal sinoatrial node function.

28. Objective: To investigate the association between gene mutations of ion channel gene KCNQ1 and KCNH2 and familial paroxysmal atrioventricular junctional reentrant tachycardia (FPAVJRT).

29. They can produce a "ball valve" effect by intermittently occluding the atrioventricular valve orifice.

30. Ohjective: To study the morphological aspects corresponding to the complex electrophysiological signs of dual (multi) -pathway and reentry of the atrioventricular node (AVN) area.

31. Accessory Atrioventricular Myocardial Connections in the Developing Human Heart: Relevance for Perinatal Supraventricular Tachycardias.

32. During the ablation procedure , there were 3 patients complicated with ～ transient atrioventricular block ( AVB ).

33. Conduction block. A block of your heart's electrical pathways can occur in or near the atrioventricular node, which lies on the pathway between your atria and your ventricles.

34. However, another kind of SSS associated with sinus node and atrioventricular node dysfunction, characterized by long P-R interval, has not yet been reported in the literature.

35. The conduction system in the avian heart is specialized and contains a recurrent bundle branch that innervates the right atrioventricular valve.

36. Objective To offer anatomic parameters for diagnosing and treating the diseases about right atrioventricular valve.

37. The atrioventricular septums were observed in 32 human hearts with in-situ-dissection and histological-section.

38. Care should be taken to avoid injury of atrioventricular node and coronary vessels.

39. Conclusion In patients with dual atrioventricular node pathways and a documented but noninducible PSVT(), catheter ablation of slow-pathway is highly effective in preventing the tachycardia.

40. Results The right atrioventricular valve can be divided into rough region, transparent region and basin region.

41. ECG showed first degree atrioventricular block and ST segment elevations.

42. Methods: DCG monitoring was performed in 84 cases with DAVNP and atrioventricular nodal reentrant tachycardia ( AVNRT ).

43. All cases were confirmed with echocardiography and featured changes including characteristic aortic valve and(or) atrioventricular valve degenerative changes.

44. Objective To report the experience of radiofrequency catheter ablation ( RFCA ) for atrioventricular reentrant tachycardia ( AVRT ).

45. Comparative studies between the sinus node and the atrioventricular node have revealed relatively few histological differences.

46. Short - term isoproterenol stimulation elicited arrhythmias, including premature entricular contractions, atrioventricular heart block, and entricular tachycardia.

47. Objective To evaluate the safety and efficacy of the procedure with atrioventricular node ablation and pacemaker implantation in patients with refractory atrial flutter and atrial fibrillation.

48. The complications included high degree atrioventricular block ( AVB, 6 cases )(http://), hemolysis ( 2 cases ) and occluder displaced ( 1 case ).

49. The atrioventricular block animal model after cell transplantation can confirm that the sinoatrial node pacemaker cell can work effectively.

50. Methods The hearts of 171 Chinese adults were measured for the forms of the valve regions of the right atrioventricular valve.

51. Objective To study the ultrastructure of the atrioventricular node in normal adult human heart.

52. Conclusion: The regulating function of vagus nerve on atrioventricular conduction is augmented after acute ischemia related to the right coronary artery.

53. Background - Fetal atrioventricular AV block is an uncommon lesion with significant mortality.

54. The ultra-structures and the connection patterns of the conduction relevant cells in different layers of the rabbit atrioventricular node were investigated.

55. Atrioventricular (AV) node ablation has been used to treat symptomatic atrial fibrillation with poor rate control, although these studies have contained few subjects with low ejection fractions (EFs).

56. Objective To investigate the protective effects of Digoxin on atrioventricular function in rats after simulated weightlessness.

57. Objective To investigate cell type and size of fetus atrioventricular node.

58. Atrioventricular valves lie between the atria and ventricles, and semilunar valves are located at the bases of the two large vessels leaving the heart.

59. Objective To illustrate the adaptation of effective refractory period of His-Purkinje system during atrioventricular nodal reentrant tachycardia(AVNRT) and to discuss the possible mechanisms.

60. She subsequently developed complete atrioventricular block and a temporary intravenous pacemaker was applied.

61. Objective To investigate the characteristics and therapy of atrioventricular block ( AVB ) caused by acute viral myocarditis.

62. Objective To assess the properties of atrioventricular nodal reentrant tachycardias ( AVNRT ).

63. We report a case of second degree AV ( atrioventricular ) block due to topical administration of carteolol.

64. Results: Compared with myocardial, the levels of SDH and LDH in atrioventricular node area in model group and control group were lower.

65. Objective To evaluate the effect of RVOTS spiral electrode pacing on hemodynamics in the treatment by atrioventricular sequential pacing.

66. At a subsequent syncopal attack, 24 hours ambulatory ECG was repeated and found intermittent complete atrioventricular block with prolonged ventricular asystole up to 19.4 sec.