What Is Normal Aortic Valve Index?

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By Ralph Torres

The aortic valve is a crucial part of the human heart, responsible for regulating blood flow from the left ventricle to the aorta. The normal functioning of this valve is essential for maintaining good heart health. In this article, we’ll discuss the normal aortic valve index and how it impacts heart health.

What is Aortic Valve Index?

The aortic valve index (AVI) refers to the size of the aortic valve opening relative to the size of an individual’s body. It’s calculated by dividing the area of the aortic valve opening by an individual’s body surface area (BSA). AVI is expressed in units of cm²/m².

Why is Aortic Valve Index Important?

AVI plays an essential role in determining if an individual has normal or abnormal blood flow through their heart. If AVI is too small, it can cause obstruction to blood flow and lead to conditions like aortic stenosis. On the other hand, if AVI is too large, it can contribute to regurgitation or backflow of blood into the left ventricle.

What is Normal Aortic Valve Index?

The normal range for AVI varies depending on age and gender. In adults, a normal AVI typically falls between 0.6 and 1.1 cm²/m². However, in children and adolescents, this range can differ based on age and developmental factors.

It’s crucial to note that even though an individual may fall within the normal range for AVI, this doesn’t necessarily mean they have optimal heart health. Other factors like blood pressure, cholesterol levels, and lifestyle habits also play significant roles in maintaining good cardiovascular health.


In conclusion, understanding your aortic valve index is essential for maintaining good heart health. A healthy AVI ensures that blood flow through the heart is optimal, reducing the risk of cardiovascular disease. If you’re concerned about your AVI, it’s essential to speak with your healthcare provider to evaluate your heart health comprehensively.