This document provides guidance on using echocardiography to assess aortic valve disease. It outlines key measurements and criteria for determining the severity of aortic regurgitation and stenosis based on guidelines from the American Heart Association and American College of Cardiology. Parameters like jet width, vena contracta, flow reversal, and regurgitant volume are described for diagnosing severe aortic regurgitation. Thresholds for aortic valve area, velocity, and mean pressure gradient are defined to identify different types of severe aortic stenosis.

1. E C H O C A R D I O G R A P H Y A S S E S S M E N T I N
A O R T I C VA LV E D I S E A S E
N AV Y L A K S M O N O

2. A N AT O M Y

3. E C H O A N AT O M Y

4. T E E

5. M E A S U R E M E N T O F A O R TA

6. A O R T I C R E G U R G I TAT I O N
• Severe AR*
• Jet width > 65% LVOT
• Vena contracta >0.6cm
• Holodiastolic flow reversal in
proximal abdominal aorta
• RVol > 60 ml/beat
• RF > 50%
• ERO > 0.3 cm2
• LV dilation
*2017 AHA/ACC Guideline for the Management
of Patients With Valvular Heart Disease
(2014 guideline with 2017 focused update
incorporated)

7. A O R T I C R E G U R G I TAT I O N

8. A O R T I C S T E N O S I S
• Low flow low gradient severe AS with
normal LVEF*
• AVA < 1 cm2, Aortic Vmax <4m/s,
Mean PG <40
• Index AVA < 0.6 cm2/m2, SV index
<35 ml/m2 with normotensive
(Systolic BP <140mmhg)
*2017 AHA/ACC Guideline for the Management
of Patients With Valvular Heart Disease
(2014 guideline with 2017 focused update
incorporated)
• High gradient severe AS*
• AVA < 1 cm2, Aortic Vmax > 4m/s,
Mean PG > 40
• Low flow low gradient severe AS with
reduced LVEF*
• AVA < 1 cm2, Aortic Vmax <4m/s, Mean
PG < 40
• DSE show AVA < 1 cm2 with Vmax > 4m/s

11. T H A N K Y O U