TABLE 2.
Procedural characteristics by VT recurrence and mortality
| VT Recurrence within 12 Months | Transplant/Death within 12 Months | |||||
|---|---|---|---|---|---|---|
|
|
||||||
| N (%) or median (Q1-Q3) | Yes (N=536) |
No (N=1525) |
p value | Yes (N=273) |
No (N=1788) |
p value |
|
| ||||||
| Hemodynamic Support Device | 32 (7.9) | 63 (5.3) | 0.068 | 39 (19.9) | 56 (4.0) | <0.001 |
| Epicardial Access | 178 (37.5) | 404 (29.3) | 0.001 | 83 (33.7) | 499 (31.1) | 0.440 |
| Ablation | 0.040 | 0.131 | ||||
| Endo | 350 (72.2) | 1049 (75.6) | 186 (74.1) | 1213 (74.8) | ||
| Epi | 24 (4.9) | 94 (6.8) | 9 (3.6) | 109 (6.7) | ||
| Endo+Epi | 106 (21.9) | 236 (17.0) | 54 (21.5) | 288 (17.8) | ||
| Number of VTs Induced | <0.001 | <0.001 | ||||
| 0 | 40 (8.4) | 176 (12.7) | 15 (6.0) | 201 (12.5) | ||
| 1 | 116 (24.4) | 503 (36.2) | 52 (20.8) | 567 (35.2) | ||
| 2 | 131 (27.6) | 318 (22.9) | 72 (28.8) | 377 (23.4) | ||
| ≥3 | 188 (39.6) | 391 (28.2) | 111 (44.4) | 468 (29.0) | ||
| VT Mappability | 0.193 | <0.001 | ||||
| All Unmappable | 149 (40.4) | 394 (38.8) | 93 (46.3) | 450 (38.0) | ||
| All Mappable | 150 (40.7) | 462 (45.5) | 63 (31.3) | 549 (46.4) | ||
| Both Unmappable and | ||||||
| Mappable | 70 (19.0) | 160 (15.7) | 45 (22.4) | 185 (15.6) | ||
| Fastest TCL | 340 (290-394) | 330 (280-392) | 0.563 | 362 (310-428) | 330 (280-390) | <0.001 |
| Slowest TCL | 410 (344-500) | 390 (323-470) | 0.012 | 450 (380-540) | 384 (320-460) | <0.001 |
| Acute Outcome | <0.001 | <0.001 | ||||
| Noninducible | 286 (57.5) | 991 (70.5) | 105 (42.5) | 1172 (70.8) | ||
| Partial/Failure | 176 (35.4) | 365 (26.0) | 116 (47.0) | 425 (25.7) | ||
| Not Tested | 35 (7.0) | 50 (3.6) | 26 (10.5) | 59 (3.6) | ||
| Total Lesion Time (m) | 35.5 (20.2-54.0) | 32.1 (17.0-53.8) | 0.392 | 38.1 (24.1-60.5) | 32.0 (17.0-53.2) | 0.012 |
| Procedure Time (m) | 294.0 (222.0-390.0) | 247.4 (187.1-339.9) | <0.001 | 300 (230-418) | 251 (193-344) | <0.001 |
| Procedural Complications | 30 (6.3) | 97 (7.0) | 0.671 | 30 (12.3) | 97 (6.0) | <0.001 |