Table 2.
Right Ventricular Function
| Parameters | Air (21% O2) | Hypoxia (12% O2) | P (21 vs. 12%O2) | Hyperoxia(85% O2) | P (21 vs. 85% O2) | P by ANOVA |
|---|---|---|---|---|---|---|
| RV echo dimensions | ||||||
| RVAW; diastole, mm | 0.3 ± 0.03 | 0.3 ± 0.02 | 0.09 | 0.3 ± 0.03 | 0.326 | 0.23 |
| RVAW; systole, mm | 1.2 ± 0.14 | 1 ± 0.16 | 0.47 | 1.2 ± 0.14 | 0.47 | 0.72 |
| RVID; diastole, mm | 1.1 ± 0.14 | 1.1 ± 0.13 | 0.65 | 1.1 ± 0.16 | 0.81 | 0.98 |
| RVID; systole, mm | 0.9 ± 0.1 | 1 ± 0.0 | 0.42 | 1.2 ± 0.1 | 0.06 | 0.1 |
| PV | ||||||
| PVAc, m/s2 | 50.3 ± 3.3 | 54.5 ± 4.7 | 0.47 | 57.4 ± 5.3 | 0.25 | 0.54 |
| PVET, ms | 45.5 ± 1 | 48.7 ± 1.2 | 0.06 | 43.8 ± 0.9 | 0.25 | 0.01* |
| PVAc/PVET | 1.3 ± 0.26 | 1 ± 0.1 | 0.29 | 1 ± 0.1 | 0.82 | 0.37 |
Definition of abbreviations: PV, pulmonary valve; PVAc, PV acceleration; PVET, PV ejection time; RV, right ventricular; RVAW; RV anterior wall; RVID, RV internal diameter.
Values presented are means ± SE; n = 10 per group; P vs. corresponding air group.
*
P < 0.05 for hypoxia vs. hyperoxia group.