Table 3.
Hemodynamic results during pacing in failing hearts
| RR, ms | QRSd, ms | LVEDP, mmHg | LVPmax, mmHg | dP/dtmax, mmHg/s | dP/dtmin, mmHg/s | Stroke Volume, ml | Ejection Fraction, % | |
|---|---|---|---|---|---|---|---|---|
| DYSS | 471 ± 18 | 124 ± 9 | 13.4 ± 0.9 | 77.3 ± 4.3 | 1,062 ± 129 | −923 ± 70 | 6.1 ± 1.1 | 13.8 ± 2.3 |
| ENDO | 469 ± 17 | 86 ± 9* | 13.1 ± 1.0 | 83.9 ± 3.9 | 1,327 ± 147† | −1,179 ± 98† | 7.5 ± 1.1† | 17.2 ± 3.1† |
| EPI | 471 ± 17 | 101 ± 10 | 13.2 ± 4.2 | 81.7 ± 3.7 | 1,246 ± 152 | −1,078 ± 95 | 6.7 ± 1.0 | 15.7 ± 3.0 |
Values are means ± SE; n = 6.
*
P < 0.01, ENDO vs. EPI;
†
P < 0.05, ENDO vs. EPI (comparisons performed with a two-way repeated measures ANOVA and Tukey's post hoc tests).