| Cardiovascular regulation in epilepsy with emphasis on the interictal state | ||
|---|---|---|
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There was a strong correlation between HR responses in breathing tests and several traditional measures of HRV, whereas the correlation was weak between dynamic measures of HRV, the HR responses of the cardiovascular autonomic reflexes and traditional measures of HRV (Table 15).
Table 15. The correlation of cardiovascular reflex tests and heart rate variability analysis in patients with temporal lobe epilepsy.
| Measures of HRV | SD of RR interval | Max-Min Ratio | Valsalva Ratio | 30:15 Ratio |
|---|---|---|---|---|
| RRI | 0.24 | -0.06 | -0.09 | -0.03 |
| SD | 0.64** | 0.45* | 0.24 | 0.002 |
| SDNN | 0.18 | 0.35* | 0.25 | -0.29 |
| VLF | 0.63** | 0.44* | 0.27 | 0.08 |
| LF | 0.64** | 0.40* | 0.32 | 0.17 |
| HF | 0.58** | 0.34 | 0.43* | 0.04 |
| SD1 | 0.60** | 0.41* | 0.40* | 0.05 |
| SD2 | 0.61** | 0.42* | 0.25 | -0.03 |
| α2 | 0.12 | 0.19 | 0.27 | 0.14 |
| ApEn | 0.34 | 0.29 | 0.17 | 0.20 |
| Slope | -0.32 | -0.19 | -0.15 | -0.10 |
| For abbreviations see page 66. Values are mean (± SD). *, p < 0.05, **, p < 0.001. | ||||