Left Ventricular Catecholamine Storage Capacity
| Parameter | Overall (n = 22) | No diabetes (n = 12) | Diabetes (n = 10) |
|---|---|---|---|
| Extent of restored innervation (% of left ventricle) | 12.6 ± 17.0 | 19.1 ± 20.6 | 4.7 ± 5.3* |
| Restoration rate (% of left ventricle/y) | 4.7 ± 8.2 | 8.0 ± 10.1 | 0.8 ± 1.0* |
| Global 11C-epinephrine retention index (%/min) | 6.8 ± 2.6 | 7.6 ± 3.3 | 5.8 ± 1.0 |
| 11C-Epinephrine retention index, LAD territory (%/min) | 8.5 ± 4.2 | 9.7 ± 5.2 | 7.0 ± 1.9 |
| 11C-Epinephrine retention index, LCX territory (%/min) | 5.6 ± 1.9 | 6.2 ± 2.4 | 4.9 ± 0.6 |
| 11C-Epinephrine retention index, RCA territory (%/min) | 5.4 ± 1.5 | 5.8 ± 1.9 | 5.0 ± 0.7 |
| Maximal 11C-epinephrine retention index (%/min) | 13.7 ± 6.7 | 15.4 ± 8.2 | 11.7 ± 3.7 |
| Totally denervated patients | 8 (36%) | 4 (33%) | 4 (40%) |
↵* P = 0.04 vs. no diabetes.
LAD = left anterior descending coronary artery; LCX = left circumflex coronary artery; RCA = right coronary artery.