Table 2.
Index procedure–related characteristics in patients with and without periprocedural cardiac tamponade
| Baseline characteristics | Tamponade group (n = 200) | Control group (n = 400) | P value |
|---|---|---|---|
| Type of arrhythmia to be treated, n (%) a | 1.000 | ||
| Atrial fibrillation | 133 (66.5) | 266 (66.5) | |
| VES/VT | 29 (14.5) | 58 (14.5) | |
| AVRT | 12 (6.0) | 24 (6.0) | |
| AVNRT | 11 (5.5) | 22 (5.5) | |
| Atrial tachycardia excluding CTI-dependent flutter | 7 (3.5) | 14 (3.5) | |
| His ablation | 4 (2.0) | 8 (2.0) | |
| CTI-dependent flutter | 4 (2.0) | 8 (2.0) | |
| Energy delivery, n (%) b | 0.065 | ||
| RF energy | 165 (82.5) | 343 (85.8) | |
| Cryo energy | 12 (6.0) | 34 (8.5) | |
| RF and cryo energy | 2 (1.0) | 3 (0.8) | |
| Unclassified | 21 (10.5) | 20 (5.0) | |
| Procedure time (min) c | 188.8 +/− 78.5 | 173.0 +/− 69.5 | 0.015 |
a
Matched variable.
b
Data available in 93% of all patients.
c
Data available in 96% of all patients.
VES, ventricular extrasystole; VT, ventricular tachycardia; AVNRT, atrioventricular node re-entry tachycardia; AVRT, atrioventricular re-entrant tachycardia; CTI, cavotricuspid isthmus; RF, radiofrequency.