non-Q-wave myocardial infarction
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Pathology
- patients with non-Q-wave MI tend to develop platelet-rich (white) subocclusive thrombi in contrast to larger, occlusive erythrocyte-rich thrombi of Q-wave MI
Laboratory
- markers of myocardial infarction
- diagnosis is commonly made only retrospectively on the basis of elevated cardiac enzyme levels after the event
Diagnostic procedures
- electrocardiogram
- not associated with evolution of new Q waves
Management
- non-Q-wave MI tends to respond more favorably to thrombolytic therapy
- also see myocardial infarction
Notes
- the diagnosis of non-Q-ave MI is often difficult to make soon after the event & is commonly made only retrospectively on the basis of elevated cardiac enzyme levels