Table 1.
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) | |||||
| Age, y, mean±SD | 69±10 | 66±12 | 68±12 | 62±13 | 67±12 | 0.234 |
| Male sex, % | 21 (96) | 41 (93) | 23 (92) | 18 (95) | 62 (94) | 0.715 |
| Ischemic cardiomyopathy, % | 16 (73) | 29 (66) | 16 (64) | 13 (68) | 45 (68) | 0.575 |
| Previous VT ablation, % | 7 (32) | 15 (34) | 7 (28) | 8 (42) | 22 (33) | 0.854 |
| LVEF, % | 25±10 | 29±15 | 33±14 | 23±13 | 28±13 | 0.213 |
| ICU status, % | 13 (59) | 19 (43) | 9 (36) | 10 (53) | 32 (49) | 0.223 |
| No. of ICD shocks, mean±SD | 11±10 | 11±9.7 | 7±8 | 17±9 | 11±10 | 0.911 |
| No. of ATP, mean±SD | 28±23 | 26±29 | 24±35 | 29±18 | 27±27 | 0.756 |
| No. of AADs failed, mean±SD | 1.8±1.0 | 2.0±1.0 | 1.4±1.0 | 2.6±0.6 | 1.9±1.0 | 0.260 |
AAD indicates antiarrhythmic drug; ATP, antitachycardia pacing; CRT-D, cardiac resynchronization therapy-defibrillator; IABP, intra-aortic balloon pump; ICD, implantable cardiac defibrillator; ICU, intensive care unit; LVEF, left ventricular ejection fraction; and VT, ventricular tachycardia.