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[Relation of elevated ST segment in the electrocardiogram to echocardiography determined wall kinetics in patients
1Abteilung Kardiologie-Angiologie, des Bezirkskrankenhauses Gera.
Insights
Electrocardiogram (ECG) findings correlate with cardiac kinetics after myocardial infarction. ST-segment elevation often indicates ischemia and anterior wall akinesia, identifying patients at risk for dyskinesias and aneurysms.
Area of Science:
- Cardiology
- Medical Imaging
- Clinical Electrophysiology
Context:
- Myocardial infarction (MI) significantly impacts cardiac function and kinetics.
- Assessing post-MI cardiac health requires integrating multiple diagnostic modalities.
- Understanding the relationship between ECG markers and wall motion abnormalities is crucial for patient management.
Purpose:
- To investigate the correlation between electrocardiogram (ECG) findings and left ventricular kinetic disturbances following myocardial infarction.
- To evaluate the diagnostic value of resting and exercise ECG in conjunction with echocardiography for identifying post-MI complications.
Summary:
- This study analyzed 104 patients post-myocardial infarction, correlating ECG parameters with echocardiographic findings at hospital discharge and 3 months later.
- ST-segment elevation after anterior-wall MI was primarily linked to ischemia and anterior wall akinesia.
- Specific ECG criteria (e.g., significant ST elevation, reduced exercise capacity with ST changes, arrhythmias) identified patients with dyskinesias and aneurysms.
Impact:
- Provides insights into the prognostic value of specific ECG patterns in post-myocardial infarction patients.
- Highlights the utility of combined ECG and echocardiography for risk stratification.
- Aids in identifying patients requiring closer monitoring for adverse cardiac remodeling and complications.
Abstract:
The connection of ECG findings and disturbances of the kinetics after myocardial infarction was controlled on 104 patients in correlation to the echocardiography. The investigations were performed at discharge from hospital and in the 3rd month after infarction by means of ECG at rest and exercise electrocardiogramme as well as echocardiography. In this case was shown that the elevation of the ST-segment after anterior-wall infarction was above all the expression of an ischaemia and was in most cases accompanied by an akinesia of the anterior wall. Only patients with a precordial ST-elevation over 2 mm at rest with increase to more than 4 mm under exercise or patients with a smaller ST-elevation, but a symptom-limited performance to 50 Watt, connected with ST-elevation, ventricular extrasystoles or pathological diastolic pressure of the pulmonary arteries as withdrawal criterion belonged to the group with dyskinesias and aneurysms, respectively.