Table 1 Hemodynamic and echocardiographic parameters at baseline and after induction of CM
From: Establishment of a canine model of cardiac memory using endocardial pacing via internal jugular vein
Control | Short-term CM | Long-term CM | |||||||
|---|---|---|---|---|---|---|---|---|---|
Baseline | Postoperation | p-value | Baselin | Post CM | p-value | Baselin | Post CM | p-value | |
HR (bpm) | 125 ± 15 | 128 ± 17 | NS | 122 ± 14 | 127 ± 15 | NS | 120 ± 19 | 124 ± 21 | NS |
SBP(mm Hg) | 145 ± 25 | 139 ± 30 | NS | 137 ± 29 | 131 ± 25 | NS | 148 ± 35 | 140 ± 30 | NS |
DBP(mm Hg) | 105 ± 16 | 101 ± 13 | NS | 99 ± 15 | 94 ± 13 | NS | 110 ± 16 | 103 ± 17 | NS |
Echocardiographic parameters | |||||||||
IVSt(mm) | 8.2 ± 1.0 | 8.3 ± 1.2 | NS | 9.0 ± 1.3 | 9.1 ± 1.5 | NS | 8.8 ± 0.9 | 8.8 ± 1.1 | NS |
LVPWt(mm) | 7.3 ± 1.3 | 7.4 ± 1.5 | NS | 8.0 ± 1.1 | 8.1 ± 1.4 | NS | 7.6 ± 1.5 | 7.8 ± 1.4 | NS |
LVEDd (mm) | 36.5 ± 5.5 | 38.4 ± 5.3 | NS | 38.1 ± 6.0 | 38.8 ± 6.2 | NS | 38.0 ± 5.6 | 38.2 ± 5.6 | NS |
RVd (mm) | 16.3 ± 3.4 | 17.1 ± 3.5 | NS | 16.9 ± 3.1 | 17.1 ± 3.3 | NS | 16.5 ± 3.1 | 16.6 ± 3.3 | NS |
LVEF (%) | 59.5 ± 8.6 | 58.0 ± 8.5 | NS | 61.0 ± 9.0 | 62.8 ± 9.2 | NS | 62.1 ± 9.5 | 60.7 ± 8.9 | NS |