What is preserved lv funcation?

Preserved left ventricular (LV) function refers to a condition where the heart's left ventricle maintains its ability to pump blood effectively despite the presence of certain cardiovascular diseases, such as heart failure. In this scenario, the ejection fraction, a measure of how much blood the left ventricle pumps out with each contraction, remains within the normal range (typically above 50-55%). This can occur in patients with heart failure with preserved ejection fraction (HFpEF), where symptoms of heart failure arise without a significant reduction in LV function. It highlights the importance of other factors, such as diastolic dysfunction, in the overall cardiac performance.