[Cardiac resynchronization in congestive heart failure: role of Doppler echocardiography in patient selection]

Cardiac echodoppler is an efficient tool to analyse cardiac mechanic loop. Diastolic and systolic desynchronisation criteria are analysed. It should allow a more efficient selection of patients who could take benefit of resynchronization therapy, but also to choose resynchronization system, to program optimal atrioventricular delay, interventricular delay and to evaluate resynchronization efficiency. However, this tool should be evaluated in large studies in order to compare it to electrocardiogram.