The use of echocardiography for the evaluation of dyssynchrony.
Tissue Doppler imaging (TDI), is a new imaging tool that allows measurement of dyssynchrony. In several small studies, TDI predicted clinical response and reverse remodeling after cardiac resynchronization therapy (CRT). Moreover, it allowed detection of mechanical dyssynchrony in heart failure patients with narrow QRS. Using TDI, the selection criteria for CRT might be changed to include heart failure patients with narrow QRS. Furthermore, it will help predict responders to this therapy, hence decreasing the percentage of nonresponders and allowing a more cost-effective use of this new technology.
El-Chami
Mikhael F
MF
Department of Cardiology, Emory University School of Medicine, and Emory University Hospital, Atlanta, Georgia 30322, USA.
Pernetz
Maria Alexandra
MA
Howell
Sharon
S
Arita
Takishi
T
Martin
Randolph P
RP
Lerakis
Stamatios
S
D001145:Arrhythmias, Cardiac / Q000000981:diagnostic imaging* / Q000503:physiopathology; D015150:Echocardiography, Doppler; D005069:Evaluation Studies as Topic; D006329:Heart Conduction System / Q000000981:diagnostic imaging* / Q000503:physiopathology; D006801:Humans; D011237:Predictive Value of Tests