Table 5.
Changes of unipolar/bipolar voltage amplitude following coronary intervention
| Difference (after – before PCI) | ||||
|---|---|---|---|---|
| Unipolar voltage amplitude, mV | P‐value | Bipolar voltage amplitude, mV | P‐value | |
| All patients | 1.29 [0.42, 2.99] | 0.01 | 0.11 [0.03, 0.25] | 0.01 |
| U‐group | 0.64 [−3.40, 1.56] | 0.31 | 0.04 [−1.13, 1.13] | 0.50 |
| S‐group | 1.55 [0.88, 3.33] | 0.02 | 0.23 [0.08, 0.36] | 0.004 |
Note: Numbers show the median difference (95% confidence interval). PCI = percutaneous coronary intervention; S‐group = patients with successful PCI and no restenosis; U‐group = patients with unsuccessful PCI or with reocclusion during the follow‐up period.