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Michael Pinsky RV function under pressure

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Question: Does <strong>RV</strong> Afterload<br />

Change Independent of Pressure<br />

• Afterload is wall stress and varies<br />

with wall tension<br />

– LaPlace’s Law:<br />

Tension = Pressure x radius of<br />

curvature<br />

• Decreasing <strong>RV</strong> radius of curvature<br />

should reduce <strong>RV</strong> afterload<br />

r<br />

P

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