Significant increase of flow kinetic energy in "nonresponders" patients to cardiac resynchronization therapy.

Backgrounds: It's still unclear if different patterns of intraventricular flow dynamics may be detected in patients nonresponders to cardiac resynchronization therapy (CRT) as compared to responders ones. Aim of this study was to evaluate the characteristics of left ventricular (LV) flow dynamics 6-months after CRT to identify Echo-particle imaging velocity (PIV) patterns were more frequently detected in nonresponders patients.

Methods: Thirty-two patients with dilated cardiomyopathy, undergoing CRT, were enrolled in this study.