Table 1

Baseline clinical characteristics of patient group

Patient	Age (years)	EF (%)	HR (beats/min)	QRS (ms)	NYHA class	Type	LBBB
1	69	29	83	200	IV	ICM	+
2	75	32	72	200	IV	ICM	(RBBB)
3	63	21	84	178	III	ICM	+
4	42	18	98	240	IV	IDC	+
5	67	26	64	165	IV	ICM	+
6	59	27	96	161	III	AO	+
7	57	33	71	196	III	ICM	+
8	64	21	85	200	III	ICM	+
9	76	26	53	160	III	IDC	+
10	66	16	88	180	III	ICM	+
11	52	26	82	180	IV	ICM	+
12	66	32	92	180	IV	ICM	+
13	72	32	74	165	III	ICM	+
14	66	35	56	145	III	IDC	+
15	59	21	91	180	III	ICM	+
Mean (SD)	63.5 (8.9)	26.4 (5.9)	79.3 (13.9)	182 (23)

AO, aortic valve replacement caused by stenosis; EF, ejection fraction; HR, sinus rhythm heart rate; ICM, ischaemic cardiomyopathy; IDC, idiopathic dilated cardiomyopathy; LBBB, left bundle branch block; NYHA, New York Heart Association; QRS, mean duration; RBBB right bundle-branch block.