Mean (SD) changes from baseline to 30 minutes of nasal continuous positive airways pressure (NCPAP)
| 0 cm H2O | 5 cm H2O | 10 cm H2O | ANOVA (two- way interaction) | ||
|---|---|---|---|---|---|
| CI (l/min/m2) | AF | 0.12 (0.22) | −0.07 (0.22) | −0.23 (0.13) | |
| SR | −0.05 (0.14) | 0.21 (0.25) | 0.23 (0.32) | 0.003 | |
| SBP (mm Hg) | AF | 0 (4.1) | 1 (7.1) | 7.7 (9.2) | |
| SR | 3 (3.9) | 0.6 (3.1) | −2.6 (4.2) | 0.03 | |
| SVI (ml/m2) | AF | 1.27 (5.36) | −2.77 (4.91) | −5.35 (3.65) | |
| SR | −0.60 (1.62) | 2.42 (2.85) | 3.94 (5.45) | 0.02 | |
| SVR (dyne.s/cm5) | AF | −66 (207) | 93 (306) | 253 (199) | |
| SR | 144 (354) | −134 (144) | −246 (295) | 0.002 | |
| MAP (mm Hg) | AF | 1.6 (2.8) | 2.3 (6.3) | 2.9 (7.6) | |
| SR | 2.3 (4.9) | 0.9 (2.8) | −2.3 (4.1) | NS | |
| MPAP (mm Hg) | AF | −0.5 (2.9) | −1.8 (3.7) | 1.8 (2.8) | |
| SR | 0.4 (2.1) | 2.4 (1.5) | −0.8 (3.1) | NS | |
| PCWP (mm Hg) | AF | 0.7 (2.3) | 1.3 (1.8) | 2.9 (4.9) | |
| SR | −0.4 (2.9) | 1.6 (1.5) | 1 (1.4) | NS | |
| PVR (dyne.s/cm5) | AF | −33.1 (35.7) | −56.6 (63.8) | 0.9 (95.9) | |
| SR | 37.4 (49.1) | 4.2 (24.6) | −53.7 (91.6) | NS | |
| RAP (mm Hg) | AF | −0.2 (1.3) | 0.6 (1.0) | 2.7 (1.4) | |
| SR | 0 (0.7) | 1.2 (0.8) | 1 (1.4) | NS | |
Change from time 0 to 30 minutes of NCPAP application at each pressure, according to subgroup. AF = atrial fibrillation; SR = sinus rhythm; CI = cardiac index; SVI = stroke volume index; HR = heart rate; SBP = systolic blood pressure; MAP = mean blood pressure; PAP = mean pulmonary artery pressure; PCWP = pulmonary capillary wedge pressure; RAP = mean right atrial pressure; SVR = systemic vascular resistance; PVR = peripheral vascular resistance.