Question
Persistence appearance of the following sign in ECG in a case of Myocardial infarction is suggestive of :
A. Death of the patient.
B. Left Ventricular Aneurysm.
C. Normal.
D. Ventricular fibrillation.
Show Answer
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Correct Answer » B
Explanation
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Ans: B. Left Ventricular Aneurysm.
ECG in the image shows:Left ventricular Aneurysm
Progression of ECG changes in Myocardial Infarction.
- The earliest presentation of acute myocardial infarction is the hyperacute T wave, which is treated the same as ST segment elevation.
- In practice this is rarely seen, because it only exists for 2–30 minutes after the onset of infarction.Hyperacute T waves need to be distinguished from the peaked T waves associated with hyperkalemia.
- In the first few hours the ST segments usually begin to rise.
- Pathological Q waves may appear within hours or may take greater than 24 hr.
- The T wave will generally become inverted in the first 24 hours, as the ST elevation begins to resolve.
- Long term changes of ECG include persistent Q waves (in 90% of cases) and persistent inverted T waves.
- Persistent ST elevation is rare except in the presence of a Left ventricular aneurysm.
