Table 4.
Left ventricular diastolic function in relationship with OSA severity.
| Echocardiographic variables | AHI <5 events·h−1 | Mild OSA | Moderate OSA | Severe OSA | p | |
|---|---|---|---|---|---|---|
| E velocity (cm/s) | Dursunoglu et al. [9] | 92 ± 12 | 77 ± 24 | 61 ± 13 | 0.01 | |
| A velocity (cm/s) | Dursunoglu et al. [9] | 67 ± 25 | 105 ± 90 | 87 ± 14 | 0.01 | |
| Vural et al. [17] | 75.1 ± 20.9 | 78.3 ± 21.5 | 76.9 ± 13.8 | 86.2 ± 17.8† | <0.05 | |
| E/A ratio | Dursunoglu et al. [9] | 1.37 ± 0.02† | 0.73 ± 0.01‡ | 0.70 ± 0.01‡ | 0.01 | |
| Imai et al. [13] | 1.38 ± 0.45 | 1.03 ± 0.39 | <0.0001 | |||
| Vural et al. [17] | 1.0 ± 0.3 | 1.0 ± 0.3 | 1.0 ± 0.3 | 0.8 ± 0.2† | <0.05 | |
| DecT (ms) | Altekin et al. [11] | 1.19 ± 0.24 | 0.96 ± 0.16† | 1.01 ± 0.3 | 1.11 ± 0.28 | 0.009 |
| Altekin et al. [11] | 163 ± 26.2 | 227.4 ± 31.1† | 216.4 ± 60.4† | 199.4 ± 39.5† | <0.001 | |
| Dursunoglu et al. [9] | 170.1 ± 20.9 | 210.0 ± 47.7 | 240.1 ± 57.7 | 0.01 | ||
| Imai et al. [13] | 187.1 ± 33.7 | 198.4 ± 36.6 | 0.003 | |||
| Vitarelli et al. [24] | 143 ± 14 | 175 ± 17 | 229 ± 15† | 0.004 | ||
| Oliveira et al. [25] | 189.2 ± 34.5 | 231.8 ± 45.2 | 247.6 ± 48.2‡ | <0.05 | ||
| IVRT (ms) | Altekin et al. [11] | 88.3 ± 12.5 | 106.3 ± 12.8† | 108.8 ± 12.9 | 113.2 ± 10.4† | <0.001 |
| Vitarelli et al. [24] | 74 ± 11 | 103 ± 9 | 125 ± 10† | 0.004 | ||
| Fung et al. [23] | 92.7 ± 16.6 | 106.4 ± 19.1 | 0.005 | |||
| Dursunoglu et al. [9] | 72.0 ± 12.6 | 100.2 ± 13.7‡ | 125.5 ± 13.1‡ | 0.01 | ||
DecT: deceleration time; IVRT: isovolumic relaxation time; AHI: apnea-hypopnea index; OSA: obstructive sleep apnea. †Significantly different from AHI <5 events·h−1; ‡significantly different from mild OSA.