Comparison of endocardial/epicardial distribution of late potentials and latest activation site between patients with and without J waves
| . | J wave (+) (N = 13) . | J wave (−) (N = 32) . | P-value . |
|---|---|---|---|
| Distribution of late potentials | |||
| RV endocardium | |||
| Areas with late potentials | 1.5 ± 0.7 | 1.3 ± 0.7 | 0.321 |
| Superior TA | 3 (23.1%) | 5 (15.6%) | 0.672 |
| Inferior TA | 7 (53.8%) | 9 (28.1%) | 0.169 |
| Superior free wall | 2 (15.4%) | 0 (0.0%) | 0.289 |
| Inferior free wall | 3 (23.1%) | 1 (3.1%) | 0.066 |
| RVOT | 5 (38.5%) | 27 (84.4%) | 0.004 |
| RV epicardium | |||
| Areas with late potentials | 1.8 ± 1.2 | 1.4 ± 0.8 | 0.214 |
| Superior TA | 5 (38.5%) | 6 (18.8%) | 0.251 |
| Inferior TA | 5 (38.5%) | 10 (31.2%) | 0.732 |
| Superior free wall | 2 (15.4%) | 0 (0.0%) | 0.079 |
| Inferior free wall | 7 (53.8%) | 2 (6.2%) | 0.001 |
| RVOT | 5 (38.5%) | 26 (81.2%) | 0.011 |
| Latest activation time | |||
| RV endocardium (ms) | 55.3 ± 38.6 | 24.2 ± 28.1 | 0.004 |
| RV epicardium (ms) | 109.3 ± 67.2 | 50.3 ± 45.5 | 0.001 |
| Location of latest activation sites | |||
| RV endocardium | 0.204 | ||
| Superior TA | 1 (7.7%) | 1 (3.1%) | |
| Inferior TA | 5 (38.5%) | 7 (21.9%) | |
| Superior free wall | 1 (7.7%) | 0 (0.0%) | |
| Inferior free wall | 1 (7.7%) | 1 (3.1%) | |
| RVOT | 5 (38.5%) | 23 (71.9) | |
| RV epicardium | |||
| Superior TA | 3 (23.1%) | 2 (6.2%) | 0.002 |
| Inferior TA | 2 (15.4%) | 6 (18.8%) | |
| Superior free wall | 0 (0.0%) | 0 (0.0%) | |
| Inferior free wall | 5 (38.5%) | 1 (3.1%) | |
| RVOT | 3 (23.1%) | 23 (71.9) | |
| Largest activation gradient | 110.9 ± 63.9 | 32.1 ± 38.1 | <0.001 |
| Area with largest gradient >30 ms | |||
| No identifiable area | 1 (7.7%) | 21 (65.6%) | |
| Superior TA area | 3 (23.1%) | 1 (3.1%) | <0.001 |
| Inferior TA area | 3 (23.1%) | 3 (9.4%) | |
| Inferior free wall area | 4 (30.8%) | 0 (0.0%) | |
| RVOT area | 2 (15.4%) | 7 (21.9%) | |
| Concordance of endo/epi latest activation sites | 0 (0%) | 29 (90.6%) | <0.001 |
| . | J wave (+) (N = 13) . | J wave (−) (N = 32) . | P-value . |
|---|---|---|---|
| Distribution of late potentials | |||
| RV endocardium | |||
| Areas with late potentials | 1.5 ± 0.7 | 1.3 ± 0.7 | 0.321 |
| Superior TA | 3 (23.1%) | 5 (15.6%) | 0.672 |
| Inferior TA | 7 (53.8%) | 9 (28.1%) | 0.169 |
| Superior free wall | 2 (15.4%) | 0 (0.0%) | 0.289 |
| Inferior free wall | 3 (23.1%) | 1 (3.1%) | 0.066 |
| RVOT | 5 (38.5%) | 27 (84.4%) | 0.004 |
| RV epicardium | |||
| Areas with late potentials | 1.8 ± 1.2 | 1.4 ± 0.8 | 0.214 |
| Superior TA | 5 (38.5%) | 6 (18.8%) | 0.251 |
| Inferior TA | 5 (38.5%) | 10 (31.2%) | 0.732 |
| Superior free wall | 2 (15.4%) | 0 (0.0%) | 0.079 |
| Inferior free wall | 7 (53.8%) | 2 (6.2%) | 0.001 |
| RVOT | 5 (38.5%) | 26 (81.2%) | 0.011 |
| Latest activation time | |||
| RV endocardium (ms) | 55.3 ± 38.6 | 24.2 ± 28.1 | 0.004 |
| RV epicardium (ms) | 109.3 ± 67.2 | 50.3 ± 45.5 | 0.001 |
| Location of latest activation sites | |||
| RV endocardium | 0.204 | ||
| Superior TA | 1 (7.7%) | 1 (3.1%) | |
| Inferior TA | 5 (38.5%) | 7 (21.9%) | |
| Superior free wall | 1 (7.7%) | 0 (0.0%) | |
| Inferior free wall | 1 (7.7%) | 1 (3.1%) | |
| RVOT | 5 (38.5%) | 23 (71.9) | |
| RV epicardium | |||
| Superior TA | 3 (23.1%) | 2 (6.2%) | 0.002 |
| Inferior TA | 2 (15.4%) | 6 (18.8%) | |
| Superior free wall | 0 (0.0%) | 0 (0.0%) | |
| Inferior free wall | 5 (38.5%) | 1 (3.1%) | |
| RVOT | 3 (23.1%) | 23 (71.9) | |
| Largest activation gradient | 110.9 ± 63.9 | 32.1 ± 38.1 | <0.001 |
| Area with largest gradient >30 ms | |||
| No identifiable area | 1 (7.7%) | 21 (65.6%) | |
| Superior TA area | 3 (23.1%) | 1 (3.1%) | <0.001 |
| Inferior TA area | 3 (23.1%) | 3 (9.4%) | |
| Inferior free wall area | 4 (30.8%) | 0 (0.0%) | |
| RVOT area | 2 (15.4%) | 7 (21.9%) | |
| Concordance of endo/epi latest activation sites | 0 (0%) | 29 (90.6%) | <0.001 |
RV, right ventricular; RVOT, right ventricular outflow tract; TA, tricuspid annulus.
Comparison of endocardial/epicardial distribution of late potentials and latest activation site between patients with and without J waves
| . | J wave (+) (N = 13) . | J wave (−) (N = 32) . | P-value . |
|---|---|---|---|
| Distribution of late potentials | |||
| RV endocardium | |||
| Areas with late potentials | 1.5 ± 0.7 | 1.3 ± 0.7 | 0.321 |
| Superior TA | 3 (23.1%) | 5 (15.6%) | 0.672 |
| Inferior TA | 7 (53.8%) | 9 (28.1%) | 0.169 |
| Superior free wall | 2 (15.4%) | 0 (0.0%) | 0.289 |
| Inferior free wall | 3 (23.1%) | 1 (3.1%) | 0.066 |
| RVOT | 5 (38.5%) | 27 (84.4%) | 0.004 |
| RV epicardium | |||
| Areas with late potentials | 1.8 ± 1.2 | 1.4 ± 0.8 | 0.214 |
| Superior TA | 5 (38.5%) | 6 (18.8%) | 0.251 |
| Inferior TA | 5 (38.5%) | 10 (31.2%) | 0.732 |
| Superior free wall | 2 (15.4%) | 0 (0.0%) | 0.079 |
| Inferior free wall | 7 (53.8%) | 2 (6.2%) | 0.001 |
| RVOT | 5 (38.5%) | 26 (81.2%) | 0.011 |
| Latest activation time | |||
| RV endocardium (ms) | 55.3 ± 38.6 | 24.2 ± 28.1 | 0.004 |
| RV epicardium (ms) | 109.3 ± 67.2 | 50.3 ± 45.5 | 0.001 |
| Location of latest activation sites | |||
| RV endocardium | 0.204 | ||
| Superior TA | 1 (7.7%) | 1 (3.1%) | |
| Inferior TA | 5 (38.5%) | 7 (21.9%) | |
| Superior free wall | 1 (7.7%) | 0 (0.0%) | |
| Inferior free wall | 1 (7.7%) | 1 (3.1%) | |
| RVOT | 5 (38.5%) | 23 (71.9) | |
| RV epicardium | |||
| Superior TA | 3 (23.1%) | 2 (6.2%) | 0.002 |
| Inferior TA | 2 (15.4%) | 6 (18.8%) | |
| Superior free wall | 0 (0.0%) | 0 (0.0%) | |
| Inferior free wall | 5 (38.5%) | 1 (3.1%) | |
| RVOT | 3 (23.1%) | 23 (71.9) | |
| Largest activation gradient | 110.9 ± 63.9 | 32.1 ± 38.1 | <0.001 |
| Area with largest gradient >30 ms | |||
| No identifiable area | 1 (7.7%) | 21 (65.6%) | |
| Superior TA area | 3 (23.1%) | 1 (3.1%) | <0.001 |
| Inferior TA area | 3 (23.1%) | 3 (9.4%) | |
| Inferior free wall area | 4 (30.8%) | 0 (0.0%) | |
| RVOT area | 2 (15.4%) | 7 (21.9%) | |
| Concordance of endo/epi latest activation sites | 0 (0%) | 29 (90.6%) | <0.001 |
| . | J wave (+) (N = 13) . | J wave (−) (N = 32) . | P-value . |
|---|---|---|---|
| Distribution of late potentials | |||
| RV endocardium | |||
| Areas with late potentials | 1.5 ± 0.7 | 1.3 ± 0.7 | 0.321 |
| Superior TA | 3 (23.1%) | 5 (15.6%) | 0.672 |
| Inferior TA | 7 (53.8%) | 9 (28.1%) | 0.169 |
| Superior free wall | 2 (15.4%) | 0 (0.0%) | 0.289 |
| Inferior free wall | 3 (23.1%) | 1 (3.1%) | 0.066 |
| RVOT | 5 (38.5%) | 27 (84.4%) | 0.004 |
| RV epicardium | |||
| Areas with late potentials | 1.8 ± 1.2 | 1.4 ± 0.8 | 0.214 |
| Superior TA | 5 (38.5%) | 6 (18.8%) | 0.251 |
| Inferior TA | 5 (38.5%) | 10 (31.2%) | 0.732 |
| Superior free wall | 2 (15.4%) | 0 (0.0%) | 0.079 |
| Inferior free wall | 7 (53.8%) | 2 (6.2%) | 0.001 |
| RVOT | 5 (38.5%) | 26 (81.2%) | 0.011 |
| Latest activation time | |||
| RV endocardium (ms) | 55.3 ± 38.6 | 24.2 ± 28.1 | 0.004 |
| RV epicardium (ms) | 109.3 ± 67.2 | 50.3 ± 45.5 | 0.001 |
| Location of latest activation sites | |||
| RV endocardium | 0.204 | ||
| Superior TA | 1 (7.7%) | 1 (3.1%) | |
| Inferior TA | 5 (38.5%) | 7 (21.9%) | |
| Superior free wall | 1 (7.7%) | 0 (0.0%) | |
| Inferior free wall | 1 (7.7%) | 1 (3.1%) | |
| RVOT | 5 (38.5%) | 23 (71.9) | |
| RV epicardium | |||
| Superior TA | 3 (23.1%) | 2 (6.2%) | 0.002 |
| Inferior TA | 2 (15.4%) | 6 (18.8%) | |
| Superior free wall | 0 (0.0%) | 0 (0.0%) | |
| Inferior free wall | 5 (38.5%) | 1 (3.1%) | |
| RVOT | 3 (23.1%) | 23 (71.9) | |
| Largest activation gradient | 110.9 ± 63.9 | 32.1 ± 38.1 | <0.001 |
| Area with largest gradient >30 ms | |||
| No identifiable area | 1 (7.7%) | 21 (65.6%) | |
| Superior TA area | 3 (23.1%) | 1 (3.1%) | <0.001 |
| Inferior TA area | 3 (23.1%) | 3 (9.4%) | |
| Inferior free wall area | 4 (30.8%) | 0 (0.0%) | |
| RVOT area | 2 (15.4%) | 7 (21.9%) | |
| Concordance of endo/epi latest activation sites | 0 (0%) | 29 (90.6%) | <0.001 |
RV, right ventricular; RVOT, right ventricular outflow tract; TA, tricuspid annulus.
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