Gianni Pastore, Massimiliano Maines, Lina Marcantoni, Francesco Zanon, Franco Noventa, Giorgio Corbucci, Enrico Baracca, Silvio Aggio, Claudio Picariello, Daniela Lanza, Gianluca Rigatelli, Mauro Carraro, Loris Roncon, S Serge Barold
BACKGROUND: Estimating left ventricular electrical delay (Q-LV) from a 12-lead ECG may be important in evaluating cardiac resynchronization therapy (CRT). OBJECTIVE: The purpose of this study was to assess the impact of Q-LV interval on ECG configuration. METHODS: One hundred ninety-two consecutive patients undergoing CRT implantation were divided electrocardiographically into 3 groups: left bundle branch block (LBBB), right bundle branch block (RBBB), and nonspecific intraventricular conduction delay (IVCD)...
December 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society