Table I.
Sham | MI | TAC | ||||
---|---|---|---|---|---|---|
| ||||||
Placebo (N=10) | E2 (N=8) | Placebo (N=21) | E2 (N=21) | Placebo (N=20) | E2 (N=18) | |
Infarct Size (%) | 28.4±1.5 | 31.3±1.6 | ||||
HR (bpm) | 529±14 | 530±19 | 507±11 | 564±6* | 554±10 | 580±6† |
LVSP (mmHg) | 94.6±2.2 | 95.0±3.1 | 89.0±1.4 | 84.9±2.1† | 149±2‡ | 144±3‡ |
Gradient (mmHg) | 4.4±2.1 | 4.0±4.0 | - | - | 64.2±3.1† | 55.1±6.5† |
LVEDP (mmHg) | 3.1±1.0 | 2.7±1.4 | 7.3±0.8† | 9.3±1.3† | 11.8±1.4† | 12.4±1.5† |
+dP/dt (mmHg s−1) | 10452±535 | 9575±315 | 8378±211† | 6734±289†* | 8836±190† | 8467±213† |
All data are means±sem. HR=heart rate, LVSP=LV systolic pressure; Gradient refers to systolic pressure drop across the aortic stricture in TAC animals. LVEDP=LV end diastolic pressure; +dP/dt=peak positive dP/dt derived from the first differential of the LV pressure tracing.
p<0.05 vs. Placebo-MI,
p<0.05 vs. the respective sham group.
p<0.01 vs. the respective sham and MI group.