Table 4.
Hemodynamic parameters before and after volume expansion in responders and nonresponders.
| n = 23 | Before volume | After volume |
|---|---|---|
| expansion | expansion | |
| RR, cycles/min | ||
| Nonresponders | 23 ± 4 | 22 ± 4 |
| Responders | 23 ± 4 | 22 ± 4 |
| HR, beats/min | ||
| Nonresponders | 97 ± 22 | 97 ± 23 |
| Responders | 112 ± 22 | 107 ± 18b |
| MAP, mm Hg | ||
| Nonresponders | 79 ± 13 | 83 ± 13b |
| Responders | 80 ± 14 | 90 ± 16b |
| PP, mm Hg | ||
| Nonresponders | 66 ± 19 | 68 ± 20 |
| Responders | 63 ± 22 | 71 ± 26b |
| VF, mm Hg | ||
| Nonresponders | 82.1 ± 20.5 | 87.5 ± 22.9b |
| Responders | 79.2 ± 27.8 | 94.6 ± 33.4b |
| SVi, mL/m² | ||
| Nonresponders | 28.7 ± 4.9 | 31.3 ± 5.4b |
| Responders | 28.9 ± 10.7 | 39 ± 14.1b |
| ΔPP, % | ||
| Nonresponders | 6.6 ± 2.5a | 4.5 ± 2.2b |
| Responders | 13.5 ± 10.6 | 5.5 ± 2.5b |
| ΔPPdim, % | ||
| Nonresponders | 7.2 ± 3.5a | 5.7 ± 2.5a |
| Responders | 20.6 ± 10 | 10.2 ± 6.1b |
| ΔVF, % | ||
| Nonresponders | 6.6 ± 1.9a | 5.1 ± 1.1b |
| Responders | 13.4 ± 10.6 | 6.6 ± 3.1b |
| ΔVFdim, % | ||
| Nonresponders | 7.4 ± 3a | 6.3 ± 1.8a |
| Responders | 20.4 ± 10.1 | 10.9 ± 5.2b |
RR, respiratory rate; HR, heart rate; MAP, mean arterial pressure; PP, pulse pressure; VF, velocity peak of femoral artery flow; SVi, stroke volume index; ΔPP, respiration-induced change in PP; ΔPPdim, deep inspiration maneuver-induced change in PP; ΔVF, respiration-induced change in VF; ΔVFdim, deep inspiration maneuver-induced change in VF; responders, patients with volume expansion-induced changes in stroke volume ≥ 15%. a P < 0.05 versus responders; b P < 0.05 versus before volume expansion. Values given as mean ± SD.