Review Article
Linear and Nonlinear Heart Rate Variability Indexes in Clinical Practice
Table 1
Descriptives. All variables are displayed as mean (standard deviation) except gender expressed as number (%).
| | Critically Ill Patients () | ED Patients () |
| | Age (years) | 54 (20) | 57 (14) | | Gender (Male) | 15 (75) | 25 (55) | | SAPS | 38 (17) | — | | SOFA | 6.3 (4.6) | — | | APACHE II | 15 (7) | — | | SBP (mmHg) | 132 (23) | 140 (23) | | DBP (mmHg) | 73 (24) | 80 (20) | | Heart Rate (bpm) | 81 (19) | 80 (19) | | SDNN index (ms) | 40 (21) | 53 (34) | | LF/HF Ratio 5 min (ms2) | 0.97 (0.67) | 0.84 (0.34) | | LF/HF Ratio tot. (ms2) | 0.89 (0.40) | 0.85 (0.23) | | DFA | | | | Alpha1 | 0.76 (0.43) | 0.98 (0.31) | | Alpha2 | 0.99 (0.18) | 1.01 (0.09) |
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ED: emergency Department. SBP: systolic blood pressure. DBP: diastolic blood pressure. SDNN: standard deviation of the NN intervals. LF: low frequency. HF: high frequency. DFA: detrended fluctuation analysis.
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