Why the study?
Does Doppler echocardiography detect and predict the severity of Björk-Shiley mitral valve dysfunction in patients with a Björk-Shiley mitral valve?
Population
58 patients with a Björk-Shiley (B-S) mitral valve
Design
Cohort
Authors
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High resting gradients associated with impaired exercise hemodynamics in Björk-Shiley mitral prostheses; hypothesis-generating for Doppler thresholds guiding reoperation.
Does Doppler echocardiography detect and predict the severity of Björk-Shiley mitral valve dysfunction in patients with a Björk-Shiley mitral valve?
Doppler echocardiography can identify prosthetic mitral valve dysfunction by detecting high pressure gradients and poor hemodynamic response to exercise, allowing for timely reoperation.
Shigenobu et al. (1994) studied this question.
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