Table 2 Hemodynamic and IVUS data of control subjects and patients with PAH at rest and during stress maneuver
PAH patients (n = 18) | Control patients (n = 10) | |||
|---|---|---|---|---|
Rest | Stress | Rest | Stress | |
CO, L/min | 4.0 ± 0.3 | 5.6 ± 0.4§ | 4.7 ± 0.1 | 8.6 ± 0.2*§ |
HR, bpm | 76 ± 3 | 104 ± 3.6§ | 73 ± 1.3 | 114 ± 1.5*§ |
SV, mL | 55 ± 5.1 | 55 ± 2.2 | 64.5 ± 1.4 | 78 ± 2*§ |
mPAP, mm Hg | 52 ± 4 | 61 ± 5§ | 15 ± 2* | 18 ± 1.2*§ |
pPAP, mm Hg | 49 ± 21 | 65 ± 6§ | 11 ± 3* | 15 ± 1.1*§ |
PCWP, mm Hg | 10.3 ± 1.0 | 7.3 ± 0.9 | 8.8 ± 0.6 | 11 ± 0.7 |
RAP, mm Hg | 7.4 ± 0.9 | 7.7 ± 0.9 | 5.0 ± 1.2 | 6.5 ± 1.1 |
PVR, Wood units | 12 ± 1.7 | 11.4 ± 1.9 | 3 ± 0.3* | 1.9 ± 0.17*§ |
PC, mL/mm Hg | 1.5 ± 0.26 | 1.1 ± 0.2§ | 6.2 ± 0.4* | 5.5 ± 0.6* |
TPR, Wood units | 14.8 ± 1.9 | 13.1 ± 2.0§ | 3.3 ± 0.25 | 2.1 ± 0.16*§ |
IVUSp, % | 33 ± 4.8 | 27 ± 4 | 52 ± 2.5* | 85 ± 3.4*§ |
EM, mm Hg | 184 ± 25 | 275 ± 36§ | 21 ± 1.9* | 18 ± 1.7*§ |