Table 3.
Left and right ventricular volume-based measurements at end-expiration and end-inspiration.
| LV | ESV (mL) | EDV (mL) | SV (mL) | EF (%) |
|---|---|---|---|---|
| All (N = 15) | ||||
| EE | 47.0 ± 13.2 | 123.2 ± 24.7 | 76.2 ± 13.6 | 62.2 ± 4.4 |
| EI | 48.1 ± 13.2 | 122.2 ± 23.6 | 74.2 ± 14.1 | 60.9 ± 5.4 |
| Change (%) | 2.9 ± 7.7 | −0.6 ± 2.2 | −2.7 ± 6.9 | −2.1 ± 5.4 |
| p-value | 0.83 | 0.91 | 0.69 | 0.48 |
| Females (n = 7) | ||||
| EE | 42.9 ± 5.9 | 113.8 ± 14.3 | 70.9 ± 12.1 | 62.2 ± 4.5 |
| EI | 44.2 ± 7.1 | 113.1 ± 13.5 | 68.9 ± 13.0 | 60.7 ± 6.1 |
| Change (%) | 2.9 ± 7.0 | −0.5 ± 2.2 | −2.8 ± 7.2 | −2.4 ± 5.8 |
| p-value | 0.73 | 0.93 | 0.79 | 0.65 |
| Males (n = 8) | ||||
| EE | 50.6 ± 16.3 | 131.5 ± 28.6 | 80.9 ± 13.1 | 62.3 ± 4.4 |
| EI | 51.5 ± 16.0 | 130.3 ± 27.3 | 78.7 ± 13.4 | 61.1 ± 4.7 |
| Change (%) | 2.8 ± 8.3 | −0.7 ± 2.3 | −2.6 ± 6.6 | −1.9 ± 5.1 |
| p-value | 0.92 | 0.94 | 0.76 | 0.61 |
| RV | ESV (mL) | EDV (mL) | SV (mL) | EF (%) |
| All (N = 15) | ||||
| EE | 83.8 ± 18.6 | 156.1 ± 36.3 | 72.3 ± 21.3 | 46.0 ± 5.5 |
| EI | 90.6 ± 19.0 | 176.7 ± 45.6 | 86.1 ± 30.4 | 48.0 ± 5.6 |
| Change (%) | 8.8 ± 11.1 | 12.9 ± 9.9 | 19.1 ± 20.5 | 5.0 ± 12.1 |
| p-value | 0.32 | 0.18 | 0.16 | 0.33 |
| Females (n = 7) | ||||
| EE | 76.5 ± 17.3 | 142.5 ± 32.8 | 66.1 ± 21.0 | 45.9 ± 6.9 |
| EI | 79.6 ± 18.3 | 152.3 ± 36.2 | 72.7 ± 20.4 | 47.6 ± 4.8 |
| Change (%) | 4.4 ± 8.6 | 7.1 ± 8.1 | 12.4 ± 19.3 | 4.6 ± 12.2 |
| p-value | 0.74 | 0.60 | 0.56 | 0.62 |
| Males (n = 8) | ||||
| EE | 90.1 ± 18.3 | 167.9 ± 36.9 | 77.8 ± 21.4 | 46 ± 4.4 |
| EI | 100.3 ± 14.5 | 198.0 ± 43.9 | 97.8 ± 33.9 | 48.3 ± 6.6 |
| Change (%) | 12.7 ± 12.1 | 18.1 ± 8.6 | 25.0 ± 21.0 | 5.4 ± 12.8 |
| p-value | 0.23 | 0.16 | 0.18 | 0.42 |
Mean and standard deviation are reported. Differences of the measurements between end-expiration and end-inspiration (t-test, significance level of 0.05) or between females and males are not significant (Mann-Whitney test, significance level of 0.05). No significant differences were found between the respiratory phases or genders. The stroke volumes of LV and RV are not significantly different (p-value of 0.55 for end-expiration, p-value of 0.18 for end-inspiration).
ESV: end-systolic volume; EDV: end-diastolic volume; SV: stroke volume; EF: ejection fraction; EE: end-expiration; EI: end-inspiration; change = (EI-EE)/EE × 100.