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What is mitral stenosis?
Calcifcation or thickening of the mitral leaflets
What is a normal pressure half time?
What is a normal mitral valve area?
Equation for Mitral Valve Area:
MVA = 220/Pressure half time
What does 7Vmax represent?
1/2 P max
What are the different ways to assess MS?
Pulse wave through MV
Inflow - Pressure half time (has some problems)
Continuous wave through MV
Planimetry (has some problems)
How does continuous wave help with MS?
Assess gradient distal to the valvue (indications of how well valve opens)
A gradient and peak can be proportionally linked to severity of stenosis
How is a gradient across mitral valve usually calculated?
Continuous wave sample at tips of mitral valve
Trace around the E/A complex
What are the effects of MS:
Increase in pulmonary pressure and LA pressure (increased by capillary wedge test)
Shortness of Breath
AF (due to dilation of LA)