endocardial mapping during vt showed that the earliest site of activation was at the apical inferior portion of the left ventricle in 14 patients whose qrs morphology during vt showed a right bundle branch block pattern and left-axis deviation , but at the apical anterosuperior portion of the left ventricle in two patients whose qrs morphology during vt showed a right bundle branch block and right-axis deviation .
C0042514
vt
C0039231
vt