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Echocardiographic observations in a patient with acute myocardial infarction with a nondiagnostic electrocardiogram
Mayo Clinic Proceedings
|May 1, 1976
Insights
Echocardiography detected significant heart wall motion abnormalities in a patient with acute myocardial infarction, despite normal electrocardiogram results. Left ventricular angiography confirmed these cardiac findings.
Area of Science:
- Cardiology
- Diagnostic Imaging
Background:
- Acute myocardial infarction (MI) diagnosis typically relies on electrocardiographic (ECG) changes and cardiac enzyme levels.
- ECG abnormalities are a cornerstone in identifying myocardial ischemia and infarction.
Observation:
- A patient presented with clinical and enzymatic evidence of acute myocardial infarction.
- Standard electrocardiography (ECG) failed to show diagnostic changes indicative of myocardial infarction.
- Echocardiography revealed a persistent, large segment of dyskinesis (impaired wall motion) in the posterolateral wall.
Findings:
- Echocardiography identified significant left ventricular dyskinesis in the posterolateral wall.
- Left ventricular angiography corroborated the echocardiographic findings of regional wall motion abnormality.
- The study highlights a discordance between clinical/enzymatic diagnosis and ECG findings in acute MI.
Implications:
- Echocardiography can be crucial for diagnosing acute myocardial infarction when ECG is non-diagnostic.
- This case underscores the importance of considering advanced imaging in suspected MI with atypical presentations.
- Findings suggest that echocardiography may reveal myocardial damage not evident on standard ECGs.
Abstract:
Echocardiography revealed a persistent large segment of dyskinesis of the posterolateral wall in a patient with clinical an enzyme evidence of acute myocardial infarction but without diagnostic electrocardiographic changes. A left ventricular angiogram confirmed the echocardiographic findings.