Comparison of pre- and post-radiofrequency ablation measurements in the 34 study patients
| Parameter . | Number of patients ( n = ) . | Pre-RFA a . | Post-RFA a . | P -value . |
|---|---|---|---|---|
| QRS duration (ms) | 34 | 129 ± 23 | 90 ± 11 | <0.0001 |
| Fractional shortening (%) | 34 | 33 ± 6 | 38 ± 5 | <0.0001 |
| LVEF(%) | 25 | 50 ± 10 | 56 ± 4 | 0.0005 |
| IVMD (ms) | 6 | 29 ± 25 | 25 ± 20 | 0.063 NS |
| SPWMD (ms) | 22 | 110 ± 94 | 66 ± 53 | 0.012 |
| Parameter . | Number of patients ( n = ) . | Pre-RFA a . | Post-RFA a . | P -value . |
|---|---|---|---|---|
| QRS duration (ms) | 34 | 129 ± 23 | 90 ± 11 | <0.0001 |
| Fractional shortening (%) | 34 | 33 ± 6 | 38 ± 5 | <0.0001 |
| LVEF(%) | 25 | 50 ± 10 | 56 ± 4 | 0.0005 |
| IVMD (ms) | 6 | 29 ± 25 | 25 ± 20 | 0.063 NS |
| SPWMD (ms) | 22 | 110 ± 94 | 66 ± 53 | 0.012 |
a Data are given as mean ± SD. P -value comparing pre- and post-RFA findings.
IVMD, interventricular mechanical delay; LVEF, left ventricular ejection fraction; NS, not significant; RFA, radiofrequency ablation; SPWMD, septal-to-posterior wall motion delay.
Comparison of pre- and post-radiofrequency ablation measurements in the 34 study patients
| Parameter . | Number of patients ( n = ) . | Pre-RFA a . | Post-RFA a . | P -value . |
|---|---|---|---|---|
| QRS duration (ms) | 34 | 129 ± 23 | 90 ± 11 | <0.0001 |
| Fractional shortening (%) | 34 | 33 ± 6 | 38 ± 5 | <0.0001 |
| LVEF(%) | 25 | 50 ± 10 | 56 ± 4 | 0.0005 |
| IVMD (ms) | 6 | 29 ± 25 | 25 ± 20 | 0.063 NS |
| SPWMD (ms) | 22 | 110 ± 94 | 66 ± 53 | 0.012 |
| Parameter . | Number of patients ( n = ) . | Pre-RFA a . | Post-RFA a . | P -value . |
|---|---|---|---|---|
| QRS duration (ms) | 34 | 129 ± 23 | 90 ± 11 | <0.0001 |
| Fractional shortening (%) | 34 | 33 ± 6 | 38 ± 5 | <0.0001 |
| LVEF(%) | 25 | 50 ± 10 | 56 ± 4 | 0.0005 |
| IVMD (ms) | 6 | 29 ± 25 | 25 ± 20 | 0.063 NS |
| SPWMD (ms) | 22 | 110 ± 94 | 66 ± 53 | 0.012 |
a Data are given as mean ± SD. P -value comparing pre- and post-RFA findings.
IVMD, interventricular mechanical delay; LVEF, left ventricular ejection fraction; NS, not significant; RFA, radiofrequency ablation; SPWMD, septal-to-posterior wall motion delay.
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