Table 3.
Comparison of Baseline Characteristics of Patients Undergoing Ventricular Tachycardia Ablation With Different Percutaneous Left Ventricular Assist Devices
| IABP (N=22) | Non-IABP Combined (N=44) |
Non-IABP Subgroups | Total (N=66) |
P Value (IABP vs Non-IABP) |
||
|---|---|---|---|---|---|---|
| Impella (N=25) | TandemHeart (N=19) | |||||
| Inducible VTs at the end of the procedure, mean±SD | 0.32±0.48 | 0.32±0.46 | 0.35±0.47 | 0.26±0.45 | 0.31±0.46 | 0.853 |
| Acute success, % | 19 (86) | 39 (89) | 21 (84) | 18 (95) | 58 (88) | 0.790 |
| Major complications, % | 3 (14) | 14 (32) | 9 (36) | 5 (19) | 17 (26) | 0.143 |
| Hematoma | 2 (10) | 6 (14) | 4 (16) | 2 (11) | 8 (12) | |
| Pericardial tamponade | 1 (5) | 5 (11) | 4 (16) | 1 (5) | 6 (9) | |
| Arteriovenous fistula | 0 | 1 (2) | 0 | 1 (5) | 1 (2) | |
| Myocardial infarction | 0 | 1 (2) | 1 (5) | 0 | 1 (2) | |
| Death in the EP laboratory | 0 | 1 (2) | 0 | 1 (5) | 1 (2) | |
| Days in the hospital, mean±SD | 7.2±3.9 | 8.2±7.7 | 8.1±9.2 | 8.4±5.3 | 7.9±6.7 | 0.561 |
| Death in the hospital, % | 5 (23) | 6 (14) | 3 (12) | 3 (16) | 11 (17) | 0.350 |
| Recurrence of VT, % | 11 (50) | 18 (42) | 11 (46) | 7 (37) | 29 (45) | 0.532 |
| Repeat VT ablation, % | 7 (32) | 7 (16) | 4 (16) | 3 (16) | 14 (21) | 0.136 |
| Death in 12 mo, % | 8 (36) | 12 (36) | 8 (32) | 4 (21) | 20 (30) | 0.449 |
IABP indicates intra-aortic balloon pump; EP, electrophysiology; and VT, ventricular tachycardia.