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[A postinfarct heart aneurysm: its removal or revascularization?]
Insights
Chronic heart failure in patients with postinfarction left ventricular aneurysm is linked to myocardial ischemia, not the aneurysm itself. Revascularization improves blood flow, normalizing left ventricle geometry and improving outcomes.
Area of Science:
- Cardiology
- Cardiac Surgery
- Heart Failure
Background:
- Postinfarction left ventricular aneurysm can lead to chronic heart failure.
- The hemodynamic significance of aneurysms >30% of the left ventricle surface requires further investigation.
- Differentiating the cause of heart failure (aneurysm vs. ischemia) is crucial for effective treatment.
Purpose of the Study:
- To determine the hemodynamic significance of large postinfarction left ventricular aneurysms.
- To elucidate the primary cause of chronic heart failure in patients with these aneurysms.
- To evaluate the impact of myocardial revascularization on left ventricle geometry and function.
Main Methods:
- Analysis of pre- and post-operative myocardial contractility and hemodynamic indices.
- Comparison of 49 patients with postinfarction left ventricular aneurysm (main group) and 26 patients with ischemic heart disease without aneurysm (control group).
Main Results:
- Hemodynamically insignificant aneurysms do not directly cause chronic heart failure; myocardial ischemia is the primary driver.
- Revascularization of the myocardium led to improved blood supply.
- Normalization of left ventricle geometry was observed post-revascularization.
Conclusions:
- The size of the aneurysm is less critical than the underlying myocardial ischemia in causing heart failure.
- Myocardial revascularization is an effective strategy for improving cardiac function and geometry in these patients.
- Treatment should focus on addressing myocardial ischemia to manage heart failure associated with left ventricular aneurysms.
Abstract:
A conclusion about the hemodynamic significance of aneurysm having the area of more than 30% of the left ventricle surface is made on the basis of an analysis of the pre- and post-operative parameters of the myocardium contractility and hemodynamic indices in 49 patients with postinfarction aneurysm of the left ventricle (main group) and 26 patients with ischemic heart disease without this complication (control group). Formation of the syndrome of chronic insufficiency of blood circulation in hemodynamically insignificant aneurysm results from ischemia of the myocardium, rather than the aneurysm as such. Improvement of blood supply to the myocardium as a result of its revascularization in such patients led to normalization of the left ventricle geometry.