Computing, Robotics, and Imaging for the Surgical Platform
Table 2 Used HRV parameters
From: Impact of cardiac surgery on the autonomic cardiovascular function
Domain | Parameter | Description | Unit | |
|---|---|---|---|---|
Time domain | Linear | meanNN | Mean value of the beat-to-beat intervals | ms |
sdNN | Standard deviation of the beat-to-beat intervals | ms | ||
Non-linear | shannon | Shannon entropy of the beat-to-beat intervals | Unitless | |
FORBWORD | Number of forbidden words | Unitless | ||
POLVAR10 | Probability of low variability <10 ms | Unitless | ||
Frequency domain | PLF/P | Normalized low-frequency power (LF 0.04 to 0.15 Hz) | Unitless | |
PHF/P | Normalized high-frequency power (HF 0.15 to 0.4 Hz) | Unitless | ||
PLF/PHF | Ratio of LF power to HF power | Unitless | ||