Does ejection fraction gradually decrease after a heart attack?

Aug 02, 2023 Source: Cainiu Health
Dr. Tian Hongbo
Introduction
Myocardial infarction refers to acute myocardial infarction. In general, ejection fraction may gradually decline after acute myocardial infarction. Patients with acute myocardial infarction often develop acute heart failure, especially those with extensive acute myocardial infarction. The main mechanism is that when acute myocardial infarction occurs, the myocardium in the infarcted area loses its ability to contract and relax.

Myocardial infarction refers to acute myocardial infarction. Under normal circumstances, ejection fraction may gradually decrease after an acute myocardial infarction. The detailed analysis is as follows:

Patients with acute myocardial infarction often develop acute heart failure, especially those suffering from large-area infarctions. The main mechanism is that when acute myocardial infarction occurs, the myocardial tissue in the affected area loses its ability to contract and relax, significantly impairing the overall contractile and relaxation functions of the heart. As a result, the heart's ejection fraction and cardiac output markedly decline. A large amount of blood accumulates within the blood vessels and the heart chambers, further deteriorating cardiac function. This vicious cycle ultimately leads to heart failure.

In summary, ejection fraction tends to progressively decline following an acute myocardial infarction. Therefore, it is crucial to seek timely medical treatment at a正规 hospital to avoid missing the optimal window for intervention.


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