Question 9#
The Doppler profile shown below is taken from a patient presenting with breathlessness.
What is this Doppler profile least likely to be compatible with?
A. Chronic secondary mitral regurgitationB. Severe mitral stenosis
C. Aortic stenosis with concentric LVH
D. Cardiac amyloidosis
E. Diasystolic dysfuntion
Correct Answer is B
Comment:
The E:A ratio is >2 with a deceleration time of <150 ms in keeping with severe diastolic dysfunction. Assessment of the severity of mitral stenosis using pressure half-time (PHT) should be performed with continuous-wave (CW) Doppler. The PHT in severe MR is long (>220 ms). The mitral valve area can be calculated using the formula MVA = 220/PHT. Although the Doppler trace shown in question is a pulsed wave (PW) of LV inflow. It would be unusual to obtain this pattern in severe MS.