Comparison of Echocardiographic and Electrocardiographic Mapping for Cardiac Resynchronisation Therapy Optimisation

Table 3

Ventricular activation times acquired under the different AVD values tested.

	AVD (ms)	VaT10-90 index (ms)	TVaT (ms)
	200	81 ± 21	139 ± 24
	180	69 ± 21	136 ± 24
	160	73 ± 21	141 ± 23
	140	68 ± 19	141 ± 30
	130	66 ± 21	133 ± 29
	120	65 ± 21	135 ± 29
	110	67 ± 23	138 ± 29
	100	62 ± 20	135 ± 30
	80	64 ± 18	141 ± 24
	60	67 ± 19	147 ± 26
AVD echo-optimal (ms)		62 ± 27	139 ± 37
AVD ECM optimal (ms)		49 ± 24	111 ± 23

Values represent means ± SD. AVD, atrioventricular delay; echo, echocardiographic mapping; ECM, electrocardiographic mapping; TVaT, total ventricular activation Time; VaT_10-90, ventricular activation time_10-90. Values were compared by ANOVA and the Kruskal–Wallis test. No between-group comparisons were significant (Tukey’s HSD).