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Ecg in AMI
- 1. ECG in Acute Myocardial infarction & culprit artery localisation Dr.Nagaraj Moorthy SJIC 04-04-08
- 15. Grading of ischemia- Sclarrovsky Birnbaum
- 19. Reciprocal and Indicative Changes
- 22. Pericarditis
- 23. L V aneurysm
- 25. Reciprocal ST segment depression
- 27. Resolution of changes in ST segment and T waves
- 28. RVMI
- 31. Transmural and subendocardial MI Q-MI does not always correlate with transmural MI Non-Q-MI does not always correlate with subendocardial MI
- 33. Sampling through electrically “ silent” area into the cavity. In the cavity, all initial wavefronts are directed away Q wave Transmural Injury Q wave
- 36. Regions of the Myocardium Inferior II, III, aVF Lateral I, AVL, V5-V6 Anterior / Septal V1-V4
- 41. Localisation of culprit vessel in AMI
- 47. Lesions in LAD D1 S1 D1
- 48. Proximal LAD
- 55. Proximal to D1
- 58. Distal LAD
- 66. Value RV4
- 75. LBBB with MI
- 80. LBBB with AMI
- 84. ? RVMI
- 85. ?RVMI
- 100. Post MI Risk Stratification Role of Electrocardiogram
- 105. THANK YOU
Notas del editor
- Terms transmural and non-transmural MI are appropriate only for pathological studies. Q-MI on ECG do not correspond with transmural MI and non-Q-MI do not correspond with subendocardial MI. That is why we advise to use terms Q-MI and Non-Q-MI to describe ECGs.
- Myocardial necrosis consist mainly of electrically inert tissue (loss of electrical potential). Dominant electrical forces will be forces of the opposite wall (directed to the opposite direction) and that is why the overlying electrodes inscribe negative initial deflection (Q wave). If the size of MI is small, reduction of R wave is occur instead of Q wave.
- First part of this slide contains the definition of pathological Q wave. However, Q wave is not pathological if it is confined only to lead III or to lead aVL. When the Q wave is inscribed in leads V1 and V2, Q-MI cannot be excluded but many other abnormalities can cause the same pattern.