TABLE 3.
Pacemaker characteristics.
| Total (n = 89) | Univentricular (n = 19) | Biventricular (n = 70) | p value | |
|---|---|---|---|---|
| Pacemaker lead position | ||||
| Epicardial | 85 (96%) | 19 (100%) | 66 (94%) | .574 |
| Transvenous | 4 (4%) | 0 (0%) | 4 (6%) | |
| Pacemaker system | ||||
| Atrial | 6 (7%) | 4 (21%) | 2 (3%) | .0014 |
| Ventricular | 18 (20%) | 0 (0%) | 18 (26%) | |
| Dual chamber | 65 (73%) | 15 (79%) | 50 (71%) | |
| Ventricular pacing | ||||
| <50% | 27 (30%) | 9 (47%) | 18 (26%) | .092 |
| >50% | 62 (70%) | 10 (53%) | 52 (74%) | |
| Ventricular lead position | ||||
| Apex | 44 (54%) | 8 (53%) | 36 (54%) | >.99 |
| Nonapical | 38 (46%) | 7 (47%) | 31 (46%) | |
| Ventricle paced | ||||
| Subpulmonary | 32 (39%) | 0 (0%) | 32 (47%) | .0003 |
| Systemic | 51 (61%) | 15 (100%) | 36 (53%) | |
| Paced QRS width (ms) | ||||
| <140 | 15 (24%) | 1 (10%) | 14 (27%) | .427 |
| ≥140 | 47 (76%) | 9 (90%) | 38 (73%) | |
| Complications postimplantation | ||||
| No | 79 (89%) | 17 (89%) | 62 (89%) | >.99 |
| Yes | 10 (11%) | 2 (11%) | 8 (11%) | |
| Reoperation within a month | ||||
| No | 82 (92%) | 18 (95%) | 64 (91%) | >.99 |
| Yes | 7 (8%) | 1 (5%) | 6 (9%) | |
| Long‐term pacing complications | ||||
| No | 82 (92%) | 19 (100%) | 63 (90%) | |
| Yes | 7 (8%) | 0 (0%) | 7 (10%) | |
| Pacemaker replacement | ||||
| No | 28 (31%) | 8 (42%) | 20 (29%) | |
| Yes | 61 (69%) | 11 (58%) | 50 (71%) | |
| Number of replacements | ||||
| Median [IQR] | 1 [0–2] | 1 [0–1.5] | 1 [0–2] | |
Note: Comparison of the pacemaker characteristics between the two groups.
Bold indicates p value <.05, demonstrating statistical significance.