CARDIOLOGY
PROSTHETIC HEART VALVES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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mild
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moderate
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severe
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not enough data
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Detailed explanation-1: -It is classified into: Mild: Peak velocity less than 3m/s and peak gradient is less than 36 mm Hg. Moderate: Peak velocity is 3 to 4m/s and peak gradient is 36 to 64mm Hg.
Detailed explanation-2: -Mild pulmonary stenosis is when the pressure difference is less than 30-40 mmHg, moderate pulmonary stenosis is when the pressure is 40 to 60 mmHg, and severe pulmonary stenosis is when the pressure is greater than 60-70 mmHg.
Detailed explanation-3: -The degree of stenosis is generally classified based on the pressure drop across the pulmonic valve with mild stenosis defined as a gradient less than 30 mmHg, moderate stenosis as a gradient of 30–60 mmHg, and severe stenosis as higher than 60 mmHg.
Detailed explanation-4: -The systolic pulmonary artery pressure (PA pressure, PASP) can be estimated by subtracting the pressure gradient across the valve (P) from right intraventricular pressure.