Dynamic relationship of left-ventricular dyssynchrony and contractile reserve in patients undergoing cardiac resynchronization therapy
Stankovic, Ivan Aarones, Marit Smith, Hans-Jørgen Vörös, Gábor Kongsgaard, Erik Neskovic, Aleksandar N Willems, Rik Aakhus, Svend Voigt, Jens-Uwe # ×
Oxford University Press
European Heart Journal vol:35 issue:1 pages:48-55
Contradicting reports have been published regarding the relation between a dobutamine-induced increase in either cardiac dyssynchrony or left-ventricular ejection fraction (LVEF) and the response to cardiac resynchronization therapy (CRT). Using apical rocking (ApRock) as surrogate dyssynchrony parameter, we investigated the dobutamine stress echocardiography (DSE)-induced changes in left-ventricular (LV) dyssynchrony and LVEF and their potential pathophysiological interdependence.