Does left ventricular dyssynchrony alone predict response to cardiac resynchronization therapy?
Long-axis dyssynchrony measurements alone are insufficient to predict CRT response, missing 40% of responders.
CRT response is dictated by correction of multiple independent mechanisms of which LVDYS is only one. Long-axis DYS measurements alone failed to detect 40% of responders.
Parsai et al. (Tue,) studied this question.