Table 3.
Hemodynamic measurements before and after fluid bolus
| parameter | before fluid bolus | after fluid bolus | ||
|---|---|---|---|---|
| fluid responder | non-responder | fluid responder | non-responder | |
| PWTT raw c finger Q | 290.4 | 273.1 | 272.1 | 270.3 |
| PWTT raw c finger R | 254.5 | 242.2 | 237.4 | 238.2 |
| PWTT raw c ear Q | 195.6 | 187.6 | 177.7 | 176.5 |
| PWTT raw c ear R | 159.1 | 156.9 | 142.4 | 146.2 |
| PWTT raw non-c finger Q | 268.6 | 262.8 | 253.7 | 253.5 |
| PWTT raw non-c finger R | 235.4 | 233.1 | 221.2 | 223.5 |
| PWTT raw non-c ear Q | 180.6 | 180.7 | 165.4 | 172.7 |
| PWTT raw non-c ear R | 146.6 | 151.2 | 132.4 | 143.2 |
| PWTT Δ c finger Q | 13.3 | 8.6 | 10.8 | 9.1 |
| PWTT Δ c finger R | 9.1 | 5.9 | 7.5 | 5.9 |
| PWTT Δ c ear Q | 13.1 | 8.0 | 11.7 | 7.6 |
| PWTT Δ c ear R | 9.3 | 4.5 | 7.7 | 4.3 |
| PWTT Δ non-c finger Q | 7.6 | 6.1 | 6.8 | 6.3 |
| PWTT Δ non-c finger R | 6.1 | 4.3 | 5.1 | 4.2 |
| PWTT Δ non-c ear Q | 12.0 | 8.3 | 10.2 | 10.5 |
| PWTT Δ non-c ear R | 10.9 | 5.6 | 7.7 | 8.2 |
| ∆ PP [%] | 13.3 | 10.3 | 7.5 | 7.0 |
| FTc [ms] | 313.7 | 332.0 | 352.2 | 347.9 |
| CO [l/min] | 4.9 | 5.5 | 6.3 | 5.6 |
| MAP [mmHg] | 69.4 | 67.6 | 76.1 | 75.5 |
| HF [min−1] | 70.2 | 66.0 | 69.0 | 66.7 |
Mean of hemodynamic measurements before and after fluid bolus, displayed separately for fluid responders (= increase in stroke volume of ≥ 10%) and non-responders (< 10%). PWTT raw measurements in [ms] vs. ∆ = respiratory variation in [%]; c = corrected measurements according to Bazett’s formula vs. non-c = uncorrected measurements; Q vs. R = start of PWTT-measurements with Q- or R-wave in ECG; finger vs. ear = pulse oximetry probe location; ∆PP = difference in pulse pressure in [%]; FTc corrected flow time in [ms], CO cardiac output in [litre/min], MAP mean arterial pressure in [mmHg], HF heart frequency in [min−1]