Table 2 Flow and energy related parameters at ascending aorta and common carotid arteries
Variables mean (SD) | Hemodialysis group | Community group | P value |
|---|---|---|---|
N | 130 | 456 | |
Ascending aorta | |||
Mean flow, ml/s | 84.0 (24.4) | 82.3 (22.0) | 0.538 |
Peak flow, ml/s | 350.0 (101.0) | 321.8 (77.4) | <0.001 |
Flow pulsatility index | 4.21 (0.51) | 3.98 (0.61) | <0.001 |
Total energy, mJ | 1212.3 (659.6) | 1041.4 (303.0) | 0.008 |
Mean energy, mJ | 1016.4 (562.1) | 927.5 (261.4) | 0.195 |
Pulsatile energy, mJ | 195.9 (144.3) | 113.8 (57.2) | <0.001 |
Pulsatile energy fraction | 0.16 (0.07) | 0.11 (0.03) | <0.001 |
Common carotid artery | |||
Mean flow, ml/s | 22.9 (6.6) | 23.4 (5.4) | 0.164 |
Peak flow, ml/s | 41.1 (14.7) | 32.1 (10.2) | <0.001 |
Flow pulsatility index | 1.81 (0.43) | 1.37 (0.31) | <0.001 |
Total energy, mJ | 307.5 (185.8) | 279.6 (80.2) | 0.405 |
Mean energy, mJ | 281.9 (169.9) | 266.6 (75.5) | 0.919 |
Pulsatile energy, mJ | 25.6 (20.8) | 13.0 (7.6) | <0.001 |
Pulsatile energy fraction | 0.080 (0.04) | 0.046 (0.02) | <0.001 |
