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DR Medhat MRCP

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Pathology myocardium Clinical<br />

syndromes<br />

Resting ECG<br />

Cardiac<br />

enzymes<br />

No myocardial<br />

necrosis<br />

Stable angina<br />

(angina of effort)<br />

Usually NAD<br />

Normal<br />

Atheromatous<br />

plaque<br />

No myocardial<br />

necrosis<br />

unstable angina<br />

- Usually NAD but may be<br />

new S-T or T<br />

Normal<br />

Erosion of<br />

atheromatus<br />

plaque &nonocclusive<br />

thrombus<br />

formation<br />

Partial (nontransmural)<br />

myocardial<br />

necrosis<br />

Non S-T MI<br />

- Usually NAD but may be<br />

new S-T or T<br />

- No S-T<br />

Rising<br />

Enlarged but still<br />

non-occlusive<br />

thrombus<br />

Large completetly<br />

occlusive thrombus<br />

Full thickness<br />

(transmural)<br />

myocardial<br />

necrosis (if<br />

prolonged<br />

obstruction with<br />

poor collaterals)<br />

S-T MI<br />

S-T<br />

Rising<br />

3

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