The document discusses different types of bradyarrhythmias, which are abnormally slow heart rhythms. It defines the normal heart rates for the sinoatrial node, atrioventricular node, and ventricles. It then explains different types of conduction blocks that can occur, including first-degree atrioventricular block, Mobitz type I second-degree block, Mobitz type II second-degree block, high-grade block, and complete heart block. It also discusses the diagnosis and treatment of bradyarrhythmias using ECGs, Holter monitors, pacemakers, medications, and other methods. The document contains many images to illustrate the anatomy and physiology of the heart's conduction system and examples of

1. Pusong Low Batt!
B r adyarrhythmias

3. Image of heart: Public Domain. Image of Conduction system from Wikimedia user Madhero88:
https://commons.wikimedia.org/wiki/File:Electrical_conduction_system_of_the_heart.svg

5. SA node: 60 to 100
bpm
AV Junction: 40 to 60
bpm
Ventricle: <40 bpm

6. Image from Ed Burns, Life in the Fast Lane: http://lifeinthefastlane.com/ecg-library/sinus-bradycardia/

7. •
•
•
Image from ECGpedia,.org: http://en.ecgpedia.org/wiki/File:Ecgfreq.png

9. Images from Wikimedia User Fae: https://upload.wikimedia.org/wikipedia/commons/6/6d/A_doctor_taking_the_pulse_of_a_gouty_bachelor_surrounded_by_Wellcome_V0010995.jpg and
https://upload.wikimedia.org/wikipedia/commons/6/69/A_physician_taking_the_pulse_of_a_female_patient_who_is_touc_Wellcome_V0016032.jpg

10. x Impulse Formation
x Impulse Conduction

11. •
•
•
•

12. Public Domain Image: https://commons.wikimedia.org/wiki/File:12_lead_sinus_bradycardia.JPG

13. Image from Ed Burns, Life in the Fast Lane: http://lifeinthefastlane.com/ecg-library/sinus-bradycardia/

14. Image from Ed Burn, Life in the Fast Lane: http://lifeinthefastlane.com/ecg-library/sick-sinus/

15. Image from Ed Burn, Life in the Fast Lane: http://lifeinthefastlane.com/ecg-library/sick-sinus/

16. Public Domain Image from https://commons.wikimedia.org/wiki/File:Treadmills_at_gym.jpg

17. x Impulse Conduction

18. Image of heart: Public Domain. Image of Conduction system from Wikimedia user Madhero88:
https://commons.wikimedia.org/wiki/File:Electrical_conduction_system_of_the_heart.svg

19. Sinoatrialexitblock:http://commons.wikimedia.org/wiki/User:Jer5150

20. From ECGPedia User DrJ: http://en.ecgpedia.org/wiki/File:Sa_exit_blok2.png

21. Image of heart: Public Domain. Image of Conduction system from Wikimedia user Madhero88:
https://commons.wikimedia.org/wiki/File:Electrical_conduction_system_of_the_heart.svg

22. First degree AV block: http://www.flickr.com/photos/popfossa/

23. •
•
•

24. •
Image from Ed Burns: http://cdn.lifeinthefastlane.com/wp-content/uploads/2011/04/ECG_wenckebach.jpg

25. Second Degree AV block Mobitz Type 1: http://commons.wikimedia.org/wiki/User:Jer5150

26. •
•
Image from Ed Burns: http://cdn.lifeinthefastlane.com/wp-content/uploads/2011/04/Mobitz_II.gif

27. Image from Ed Burns: http://cdn.lifeinthefastlane.com/wp-content/uploads/2011/04/mobitz_II_rhythm_strip.jpg

28. Mobitz type 2 and 2:1: http://commons.wikimedia.org/wiki/User:Jer5150

29. Image from Ed Burns: http://lifeinthefastlane.com/ecg-library/basics/fixed-ratio-blocks/

30. •
•
•

31. Image from Ed Burns: http://lifeinthefastlane.com/ecg-library/basics/high-grade-block/

32. •
•
•

33. Image of heart: Public Domain. Image of Conduction system from Wikimedia user Madhero88:
https://commons.wikimedia.org/wiki/File:Electrical_conduction_system_of_the_heart.svg

34. SA node: 60 to 100
bpm
AV Junction: 40 to
60 bpm
Ventricle: <40 bpm

35. Image from Ed Burns: http://lifeinthefastlane.com/ecg-library/basics/complete-heart-block/

36. Image from Ed Burns: http://lifeinthefastlane.com/ecg-library/basics/complete-heart-block/

37. SA node: 60 to 100
bpm
AV Junction: 40 to
60 bpm
Ventricle: <40 bpm

39. Complete heart block: http://commons.wikimedia.org/wiki/User:Jer5150

40. •
•
•
•
Complete heart block strip from Wikimedia user MoodyGroove: http://en.wikipedia.org/wiki/User:MoodyGroove

41. •
–
–
•
–

42. Image from Ed Burns: http://lifeinthefastlane.com/ecg-library/basics/complete-heart-block/

43. Image from Ed Burns: http://lifeinthefastlane.com/ecg-library/basics/complete-heart-block/

44. Images in Cardiovascular Medicine. From Bad to Worse. Circulation
April 18, 2006 vol. 113 no. 15 e707-e708

45. Image from Flickr User Helge V. Keltel: https://www.flickr.com/photos/17088227@N00/7147926407

46. Image from Ed Burns: http://lifeinthefastlane.com/ecg-library/basics/complete-heart-block/

47. From https://en.wikipedia.org/wiki/Dialysis#/media/File:Patient_receiving_dialysis_03.jpg

48. Pills Image from https://www.flickr.com/photos/emagineart

49. Diagnosis and Management of Cardiac Amyloidoses. Circulation.
2005; 112: 2047-2060

50. Image from wikimedia User Kalumet:
https://commons.wikimedia.org/wiki/File:Dilated_cardiomyopathy_B-Mode.jpg

51. Holter image from Wikimedia user Misscurry:
https://en.wikipedia.org/wiki/Holter_monitor#/media/File:Alex_CM4000.jpg

52. Brignole et al. J Am Coll Cardiol 2011;58:167–73

53. Image from Wikimedia user Intropin:
https://commons.wikimedia.org/wiki/File:Atropine_(1).JPG

54. From Wikimedia User
PhilippN.
https://commons.wikimedia.
org/wiki/File:Defibrillation_El
ectrode_Position.jpg

55. Image from From Wikimedia user:
https://commons.wikimedia.org/wiki/User:Stevenfruitsmaak

56. Public Domain image from https://commons.wikimedia.org/wiki/File:Pacemaker_NIH.jpg Image from Wikimedia User Lucien Monfils:
https://commons.wikimedia.org/wiki/File:Herzschrittmacher_auf_Roentgenbild.jpg

57. •
•
•
•

58. •
•
–
–
–
–

59. •
•
•

60. •

61. •
•

62. •
•
•
•
•
•

63. Pusong Low Batt!
B r adyarrhythmias

64. •
•
•
•

67. •
•

70. •
•
•
•

73. •
•
•

77. You are free to:
Share — copy and redistribute the material in any medium or format
Adapt — remix, transform, and build upon the material
The licensor cannot revoke these freedoms as long as you follow the license terms.
This slideshow is under a
Attribution-NonCommercial-
ShareAlike 4.0 International
Creative Commons license.
Under the following terms:
Attribution — You must give appropriate credit, provide a link to the license,
andindicate if changes were made. You may do so in any reasonable manner, but
not in any way that suggests the licensor endorses you or your use.
NonCommercial — You may not use the material for commercial purposes.
ShareAlike — If you remix, transform, or build upon the material, you must
distribute your contributions under the same license as the original.
No additional restrictions — You may not apply legal terms or technological
measures that legally restrict others from doing anything the license permits.