Table 3.

Overall Changes in Parameters and Changes in Parameters Stratified by Lead Age

Overall Changes in Parameters (n=95)			p-value
Sensing	Pre-LVAD	10.70±5.15	<0.01
	Post-LVAD	9.09±5.87
Impedance	Pre-LVAD	461.69±120.40	0.857
	Post-LVAD	463.36±151.60
Capture Threshold	Pre-LVAD	1.00±0.57	0.017
	Post-LVAD	1.18±0.81
Pulse width	Pre-LVAD	0.46±0.14	0.206
	Post-LVAD	0.49±0.19
High Voltage Impedance	Pre-LVAD	53.21±15.28	<0.01
	Post-LVAD	46.2±17.25
Changes in parameters stratified for RV lead age less or equal to than 2 years (n=33)
Sensing	Pre-LVAD	10.89±4.87	0.537
	Post-LVAD	10.43±6.74
Impedance	Pre-LVAD	458.27±79.84	0.333
	Post-LVAD	445.24±100.87
Capture Threshold	Pre-LVAD	0.96±0.67	0.405
	Post-LVAD	1.03±0.83
Pulse width	Pre-LVAD	0.46±0.12	0.211
	Post-LVAD	0.48±0.17
High Voltage Impedance	Pre-LVAD	56.82±15.41	<0.01
	Post-LVAD	50.85±16.73
Changes in parameters stratified for RV lead age greater than 2 years (n=62)
Sensing	Pre-LVAD	10.60±5.33	<0.01
	Post-LVAD	8.38±5.27
Impedance	Pre-LVAD	463.52±137.78	0.438
	Post-LVAD	474.0±172.64
Capture Threshold	Pre-LVAD	1.03±0.51	0.026
	Post-LVAD	1.25±0.78
Pulse width	Pre-LVAD	0.46±0.15	0.374
	Post-LVAD	0.49±0.19
High Voltage Impedance	Pre-LVAD	51.29±14.98	<0.01
	Post-LVAD	43.73±17.14