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AV block ecg analysis

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AV block ecg analysis

  1. 1. Atrio-Ventricular Block ECG Analysis Shubhendu Sharma 1
  2. 2. AV Block  Partial delays or complete interruptions in the cardiac conduction pathway between the atria and ventricles  The degree of block defines the type and classification of heart block 2
  3. 3. AV Block  Common causes: ◦ Ischemia ◦ Myocardial necrosis ◦ Degenerative disease of the conduction system ◦ Congenital anomalies ◦ Drugs (especially digitalis preparations) 3
  4. 4. AV Block  1st-degree AV heart block  2nd-degree AV heart block, Mobitz type I (Wenckebach)  2nd-degree AV heart block, Mobitz type II  3rd-degree AV heart block 4
  5. 5. AV Block 5
  6. 6. 1st-degree AV heart block  Not a true block  Is a consistent delay of conduction at the level of the AV node 6
  7. 7. 1st-degree AV heart block 7
  8. 8. 1st-degree AV heart block ECG description 8
  9. 9. 2nd-Degree AV Heart Block, Mobitz Type I  Intermitt ent block at the level of the AV node  Also referred to as Wencke bach 12
  10. 10. 2nd-Degree AV Heart Block, Mobitz Type I  More P waves than QRS complexes and the rhythm has patterned irregularity  PR interval increases until a QRS complex is dropped  After dropped beat the next PR interval is shorter  As each subsequent impulse generated there is a progressively longer PR interval until again, a QRS is dropped 13
  11. 11. 2nd-Degree AV Heart Block, Mobitz Type I 14
  12. 12. 2nd-Degree AV Heart Block, Mobitz Type II  Intermitten t block at the level of the bundle of His or bundle branches resulting in atrial impulses that are not conducted to the 16
  13. 13. 2nd-Degree AV Heart Block, Mobitz Type II 17
  14. 14. 3rd-Degree AV Heart Block  Complete block of conduction at or below the AV node  Impulses from atria cannot reach ventricles 18
  15. 15. 3rd-Degree AV Heart Block 19
  16. 16. 3rd-Degree AV Heart Block 20
  17. 17. Differences Between AV Heart Blocks 21
  18. 18. Practice makes ECG Easy  Determine the type of dysrhythmia 22
  19. 19. Practice makes ECG Easy  Determine the type of dysrhythmia 23
  20. 20. Practice makes ECG Easy  Determine the type of dysrhythmia 24
  21. 21. Practice makes ECG Easy  Determine the type of dysrhythmia 25
  22. 22. Practice makes ECG Easy  Determine the type of dysrhythmia 26
  23. 23. Practice makes ECG Easy  Determine the type of dysrhythmia 27
  24. 24. Practice makes ECG Easy  Determine the type of dysrhythmia 28
  25. 25. Practice makes ECG Easy  Determine the type of dysrhythmia 29
  26. 26. Practice makes ECG Easy  Determine the type of dysrhythmia 30
  27. 27. Practice makes ECG Easy  Determine the type of dysrhythmia 31
  28. 28. Practice makes ECG Easy  Determine the type of dysrhythmia 32
  29. 29. Practice makes ECG Easy  Determine the type of dysrhythmia 33
  30. 30. Practice makes ECG Easy  Determine the type of dysrhythmia 34
  31. 31. Practice makes ECG Easy  Determine the type of dysrhythmia 35
  32. 32. Practice makes ECG Easy  Determine the type of dysrhythmia 36
  33. 33. Practice makes ECG Easy  Determine the type of dysrhythmia 37
  34. 34. Practice makes ECG Easy  Determine the type of dysrhythmia 38
  35. 35. Practice makes ECG Easy  Determine the type of dysrhythmia 39
  36. 36. Practice makes ECG Easy  Determine the type of dysrhythmia 40
  37. 37. Practice makes ECG Easy  Determine the type of dysrhythmia 41
  38. 38. Practice makes ECG Easy  Determine the type of dysrhythmia 42
  39. 39. Practice makes ECG Easy  Determine the type of dysrhythmia 43
  40. 40. Practice makes ECG Easy  Determine the type of dysrhythmia 44
  41. 41. Practice makes ECG Easy  Determine the type of dysrhythmia 45
  42. 42. Practice makes ECG Easy  Determine the type of dysrhythmia 46
  43. 43. Practice makes ECG Easy  Determine the type of dysrhythmia 47
  44. 44. Practice makes ECG Easy  Determine the type of dysrhythmia 48
  45. 45. Practice makes ECG Easy  Determine the type of dysrhythmia 49
  46. 46. Practice makes ECG Easy  Determine the type of dysrhythmia 50
  47. 47. Practice makes ECG Easy  Determine the type of dysrhythmia 51
  48. 48. Practice makes ECG Easy  Determine the type of dysrhythmia 52
  49. 49. Practice makes ECG Easy  Determine the type of dysrhythmia 53
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