Question

Doppler evaluation of a prosthetic mitral valve should include all the following EXCEPT:

A. Effective orifice area (continuity equation)
B. Peak A velocity
C. Peak and mean pressure gradients
D. Pressure half-time

Answer 1

The Doppler evaluation of a prosthetic mitral valve should include effective orifice area, peak A velocity, and peak and mean pressure gradients.

Step-by-step explanation:

The Doppler evaluation of a prosthetic mitral valve should include the following parameters:

1. Effective orifice area (continuity equation): This measures the area of the prosthetic valve and helps assess its functioning.
2. Peak A velocity: This parameter measures the peak velocity of blood flow in the left atrium during ventricular filling.
3. Peak and mean pressure gradients: These measurements provide information about the pressure difference across the mitral valve, which can indicate the severity of valve dysfunction.

However, the Doppler evaluation of a prosthetic mitral valve does not typically include the Pressure half-time. Pressure half-time is a parameter used to assess the severity of a stenotic (narrowed) native mitral valve but is not as applicable to prosthetic valves.