Why the study?
Does the interval between A2 and cessation of mitral retrograde flow on Doppler echocardiography predict the need for valve operation in patients with mitral regurgitation?
Does the interval between A2 and cessation of mitral retrograde flow on Doppler echocardiography predict the need for valve operation in patients with mitral regurgitation?
Doppler echocardiographic measurement of the interval between A2 and cessation of mitral retrograde flow (<55 ms) is a highly sensitive and specific predictor for identifying patients with mitral regurgitation who require surgical intervention.
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May support timing of mitral regurgitation surgery; leaves open prospective validation before clinical use.
Bradley et al. (1988) studied this question.
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