Is an ejection fraction of 46% severe? Is it dangerous?
A射血分数 of 46% is usually not severe and not dangerous. Specific details are as follows:
Ejection fraction primarily refers to the percentage of stroke volume relative to the end-diastolic volume of the ventricle, and is mainly assessed through echocardiography. In healthy individuals at rest, the normal ejection fraction typically ranges between 55% and 65%. An ejection fraction below 40% is defined as heart failure with reduced ejection fraction, while a value greater than or equal to 50% is classified as heart failure with preserved ejection fraction. An ejection fraction between 40% and 50% is considered mid-range ejection fraction heart failure. Therefore, an ejection fraction of 46% is generally not serious, although it may indicate mildly reduced left ventricular systolic function, which is commonly seen in conditions such as myocarditis and myocardial infarction.
If patients experience any discomfort, they should promptly seek medical attention. It is important to adjust dietary habits by focusing on low-salt and low-fat foods, avoiding smoking and alcohol consumption, and limiting intake of high-fat foods. Maintaining a positive mental state and avoiding emotional excitement is also recommended.