AS: Aortic Valve Area (Gorlin)

Estimate aortic valve area

AS: Aortic Valve Area (Gorlin)

Estimate aortic valve area

AS: Aortic Valve Area (Gorlin)

Estimate aortic valve area

AS: Aortic Valve Area (Gorlin)

Estimate aortic valve area

1.Cardiac Output?
2.Systolic Ejection Period?
3.Mean Valvular Gradient?
4.Heart Rate?
Created by on 14/02/2016

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About this Calculator

The Gorlin Equation relies on the ratio of peak-to-peak instantaneous gradients. In mild-moderate stenosis the peak-to-peak gradient, does not reflect mean gradient however it is often close to mean gradient for severe stenosis. In low-flow states (CO < 2.5 L/min) as the Gorlin equation tends to overestimate the degree of stenosis.

The normal aortic valve area is 3-4 cm2. Symptoms tend to not be apparent until the AS is severe (<1cm2). If a patient presents with symptoms and the AVA is measured in the mild-moderate range alternative causes should be explored before attributing them to AS alone.

1. Cardiac Output?

mL/min
Created by on 14/02/2016

By using this site you acknowledge that you have read, understand, and agree to be bound by our terms of use and privacy policy. All content and tools are for educational use only, are not meant to be a substitute for professional advice and should not be used for medical diagnosis and/or medical treatment.

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