Table 6.
Transmitral peak early E-wave (E) diastolic inflow velocity, mitral to apical flow propagation (Vp), peak early (E') diastolic myocardial velocity at base and E/E' ratio at rest and lower body negative pressure (LBNP) at −20 mmHg and −40 mmHg
| (n = 12) | Rest | LBNP −20 mmHg | LBNP −40 mmHg | P-value |
|---|---|---|---|---|
| E, cm/sec | 70 (63, 78) | 51 (50, 65)* | 46 (41, 52)* | <0.001 |
| Time E, ms | 530 (515, 550) | 530 (520, 550) | 530 (515, 545) | 0.53 |
| Vp, cm/sec | 53 (45, 58) | 42 (36, 46)* | 36 (31, 42)*,† | <0.001 |
| E', cm/sec | 11.6 (10.0, 12.5) | 10.0 (7.1, 11.0)* | 7.1 (6.2, 8.7)*,† | <0.001 |
| Time E', ms | 520 (500, 550) | 530 (500, 550) | 500 (480, 530)*,† | 0.005 |
| E/E' | 5.7 (5.1, 7.2) | 5.8 (4.9, 7.1) | 6.8 (5.4, 8.2) | 0.44 |
E, transmitral early E-wave velocity, Vp, flow propagation velocity, E', LV early diastolic velocity of the mitral annulus (septal + lateral/2).
Values are Median (IQR).
*P < 0.05 versus rest, †P < 0.05 versus LBNP −20 mmHg.