Table 3 Frequency-domain parameters of HRV
VATS | THOR | P value | |
|---|---|---|---|
LnLF (ms2) | |||
Pre-op 2 h | 4.7 ± 1.2 | 4.8 ± 1.3 | 0.91 |
Pre-op 4 h | 6.1 ± 1.5 | 5.7 ± 1.4 | 0.73 |
Post-op12h | 5.9 ± 1.9 | 5.2 ± 1.5 | 0.59 |
Post-op24h | 5.4 ± 1.9 | 4.9 ± 1.3 | 0.33 |
LnHF (ms2) | |||
Pre-op 2 h | 4.2 ± 1.6 | 4.1 ± 1.5 | 0.88 |
Pre-op 4 h | 5.8 ± 2.9 | 5.6 ± 1.9 | 0.79 |
Post-op12h | 5.8 ± 2.1 | 5.3 ± 1.7 | 0.69 |
Post-op24h | 4.8 ± 1.6 | 5.5 ± 1.8 | 0.61 |
LF/HF ratio | |||
Pre-op 2 h | 1.6 ± 0.7 | 1.3 ± 1.7 | 0.39 |
Pre-op 4 h | 2.0 ± 1.2 | 2.2 ± 3.1 | 0.67 |
Post-op12h | 3.6 ± 2.0 | 3.0 ± 7.5 | 0.36 |
Post-op24h | 2.4 ± 0.7 | 2.0 ± 2.8 | 0.64 |