Table 4.
Regional differences in the mean change in ΔΑRI within patients with cardiomyopathy
| Intervention | Site | Mean Difference in ΔARI, ms | SE | P Value |
|---|---|---|---|---|
| Isoproterenol | CM-NL vs. border zones | 18.8 | 4.9 | 0.0002 |
| Isoproterenol | CM-NL vs. scar | 8.0 | 4.8 | 0.096 |
| Isoproterenol | Border zones vs. scar | −11.0 | 4.3 | 0.014 |
| Nitroprusside | CM-NL vs. border zones | −12.0 | 4.8 | 0.016 |
| Nitroprusside | CM-NL vs. scar | −4.4 | 4.8 | 0.36 |
| Nitroprusside | Border zones vs. scar | 7.3 | 4.2 | 0.08 |
CM-NL, viable tissue with normal voltage in postinfarct cardiomyopathy patients.