Myocardial Infarction: Difference between revisions

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|+'''Evolution of the ECG during a myocardial infarct'''
|+'''Evolution of the ECG during a myocardial infarct'''
|-
|-
!
!Time from onset of symptoms
!see figure
!ECG
!change
!Changes in the heart
|-
|-
!minutes
!minutes
| not in figure
| hyperacute T waves (tall T waves), ST-elevation
b
| reversible ischemic damage
| hyperacute T waves (peaked T waves)
ST-elevation
|-
|-
!hours
!hours
| c
| ST-elevation, with terminal negative T waves, negative T waves (these can last for days to months)
d
| onset of myocardial necrosis [[Image:Heart_ant_wall_infarction.jpg|left|150px|Thumb|An acute anterior myocardial infarction typically shows ST elevation on the ECG]]
| ST-elevation, with terminal negative T wave
negative T wave (these can last for months)
|-
|-
!days
!days
| e
| [[Pathologic Q Waves]]
| [[Pathologic_Q_Waves|Pathologic Q Waves]]
| scar formation [[Image:Heart_ant_wall_scar_sa.jpg|left|150px|Thumb|A transmural anterior myocardial infarction with scar formation and [[Pathologic Q Waves]]]]
|-
|-
|}
|}
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