Hyperdynamic Left Ventricular Ejection Fraction

Definition and Characteristics

A hyperdynamic LVEF is defined as a greater than normal proportion of blood within the left ventricular cavity being ejected during systole, typically characterized by an ejection fraction above 70%, according to the American College of Cardiology guidelines 1, 2
The American College of Cardiology/American Heart Association/American Society of Echocardiography guidelines describe hyperdynamic LVEF as a qualitative description of left ventricular systolic function where a greater than normal proportion of blood is ejected from the left ventricle during systole 1, 2

Hyperdynamic LVEF has important clinical implications, including association with diastolic dysfunction, worse outcomes, and impaired ventriculo-arterial coupling, although specific data is not provided in the given references

Hyperdynamic LVEF can occur due to several mechanisms, including increased contractility, reduced afterload, and altered ventricular geometry, although specific references are not provided for these conditions