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6. Valvular Heart Disease1/6 Exercise Stress Echo (Pulmonary pressure) dPmax = 64 mmHg dPmax = 110 mmHg RestPeak
6. Valvular Heart Disease2/6 Exercise Stress Echo (Mitral Regurgitation) Aliasing velocity = 38.4 cm/s PISA radius = 0.5cm Peak MR velocity = 500cm/s VTI MR = 175cm ERO = 2 x 0.9 2 x 38.4 / 570 = 0.12cm 2 Regurgitant volume = 175 x 0.12 = 21ml Aliasing velocity = 38.4 cm/s PISA radius = 0.9cm Peak MR velocity = 570cm/s VTI MR = 195cm ERO = 2 x 0.9 2 x 38.4 / 570 = 0.34cm 2 Regurgitant volume = 195 x 0.34 = 66ml RestPeak
6. Valvular Heart Disease3/6 Dobutamine Stress Echo (True Aortic Stenosis) REST Peak V = 3.5 m/s Mean P = 32 mmHg AVA = 0.7 cm2 DOBUTAMINE Peak V = 4.9 m/s Mean P = 56 mmHg AVA = 0.7 cm2
6. Valvular Heart Disease4/6 Dobutamine Stress Echo (Aortic Pseudostenosis) REST Peak V = 3.5 m/s Mean P = 32 mmHg AVA = 0.7 cm2 DOBUTAMINE Peak V = 4.0 m/s Mean P = 36 mmHg AVA = 1.1 cm2
6. Valvular Heart Disease5/6 Mitral stenosis peak 2DColor MV CWTR CW rest
6. Valvular Heart Disease6/6 peak 2DColorMV CWTR CW rest dPmean=4mmHg dPmean=9mmHg dP=36mmHg dP=64mmHg Mitral stenosis
Date of download: 6/29/2016 Copyright © The American College of Cardiology. All rights reserved. From: The Emerging Role of Exercise Testing and Stress.
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Date of download: 7/7/2016 Copyright © The American College of Cardiology. All rights reserved. From: ACC/AHA guidelines for the management of patients.
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