From: Fusion beat in patients with heart failure treated with left ventricular pacing: may ECG morphology relate to mechanical synchrony? A pilot study
Age, yrs
66 ± 10
Males, N (%)
15 (63%)
Females, N (%)
9 (37%)
QRS width, ms
166 ± 17
NYHA class, N
2.73 ± 0.46
EF, %
28 ± 5
Post_MI Cardiopathy, N (%)
16 (67%)
Valvular Cardiopathy, N (%)
1 (4%)
Idiopathic Dilated Cardiomyopathy, N (%)
7 (29%)