Table 1.

Baseline Clinical Characteristics and Echocardiographic Dyssynchrony

Dyssynchrony Index	Cut-Off	n	Age (years)	Female (%)	EF (%)	MR (degree)	QRS (ms)	Ischemic Etiology (%)
IVMD	≥ 40 ms	83	65±11	38	23±7	1.5±1.2	171±27	43
	< 40 ms	97	67±11	23	24±6	1.4±1.3	147±21*	69*
TDI Opposing Wall Delay	≥ 65 ms	160	65±12	34	24±7	1.4±1.1	159±25	53
	< 65 ms	45	67±11	18	25±6	1.4±1.2	159±30	71*
TDI Opposing Wall Delay	≥ 80 ms	142	66±12	36	24±7	1.4±1.1	160±25	50
	< 80 ms	63	66±11	18	24±6	1.4±1.2	157±29	73*
TDI Yu Index	≥ 32 ms	148	65±12	35	24±7	1.3±1.1	161±25	51
	< 32 ms	57	67±10	20	24±6	1.5±1.3	156±29	73*
Radial Strain Anteroseptal to Posterior Wall Delay	≥ 130 ms	150	65±11	34	24±6	1.5±1.2	161±26	50
	< 130 ms	47	66±13	18	24±7	1.3±1.1	148±23*	76*

IVMD = Interventricular mechanical delay, EF= ejection fraction TDI = tissue Doppler imaging, MR = mitral regurgitation; semi-quantitatively graded: 0 = none, 1 = mild, 2 = moderate, 3 = moderately severe, 4 = severe.

^*p<0.05 vs. patients with corresponding dyssynchrony variable. All data are presented as mean ± standard deviation.