Table 2.
Post-TAVR electrocardiographic and electrophysiology study data for all patients, excluding those with complete heart block immediately after TAVR
| Variable | All patients N = 114 |
No HDAVB n = 109 |
HDAVB n = 5 |
p value |
|---|---|---|---|---|
| Post-TAVR PR, ms | 198 (178-226) | 198 (178-225) | 234 (170-312) | 0.13 |
| Post-TAVR QRS, ms | 123 (106-147) | 120 (104-148) | 138 (134-140) | 0.38 |
| Post-TAVR AH interval, ms | 103 (82-127) | 102 (82-127) | 140 (73-189) | 0.30 |
| Post-TAVR HV interval, ms | 58 (48-64) | 58 (48-63) | 80 (62-130) | <0.01 |
| Post-TAVR HV <65 ms | 85 (75%) | 83 (77%) | 2/5 (40%) | 0.06 |
| Post-TAVR HV ≥65 ms | 28 (25%) | 25 (23%) | 3/5 (60%) | |
| Post-TAVR new LBBB | 27/114 (24%) | 26/109 (24%) | 1/5 (20%) | 0.84 |
| Post-TAVR new persistent LBBB | 9/114 (8%) | 3 (7%) | 1 (20%) | 0.31 |
| Prolonged PR interval | 25/91 (28%) | 23/87 (26%) | 2/4 (50%) | 0.30 |
| Delta PR, ms | 7 (−4 to 22) | 7 (−4 to 21) | 29 (−5 to 79) | 0.02 |
| Delta PR ≥20 ms | 21 (25%) | 19 (23%) | 50 (65%) | 0.24 |
| Delta QRS, ms | −20 (26%) | −20 (26%) | −25 (44%) | 0.66 |
| Delta AH, ms | 1 (17%) | 2 (17%) | −2 (25%) | 0.71 |
| Delta HV, ms | 3 (0-7) | 3 (0-7) | 26 (12-76) | <0.01 |
| Delta HV ≥15 ms | 18/112 (16%) | 15/107 (14%) | 3/5 (60%) | <0.01 |
| ∗24-48 h post-TAVR HV ≥65 ms | 6/50 (12%) | 4/47 (9%) | 2/3 (67%) | <0.01 |
Abbreviations: EP, electrophysiology; HDAVB, high-degree atrioventricular block; HV, His-ventricular; LBBB, left bundle branch block; TAVR, transcatheter aortic valve replacement.
∗
EP studies 24-48 h after TAVR were available for 50 patients. Values are median (interquartile range) or n (%).