Table 4.
Absolute values of parameters before and after L-arginine infusion in patients with leukoaraiosis (LA) and control group
| Parameter | LA group | Control group | p-value |
|---|---|---|---|
| vmr | 53.2 cm/s (SD 14.1) | 63.0 cm/s (SD 8.1) | 0.002 |
| vms | 57.3 cm/s (SD 18.3) | 72.9 cm/s (SD 9.5) | <0.001 |
| MAPr | 103.5 mmHg (SD 19.4) | 101.5 mmHg (SD 9.9) | 0.63 |
| MAPs | 106.5 mmHg (SD 20.0) | 106.1 mmHg (SD 12.0) | 0.93 |
| HRr | 64/min (SD 13) | 62/min (SD 12) | 0.63 |
| HRs | 71/min (SD 12) | 70/min (SD 14) | 0.85 |
| CO2r | 19.1 mmHg (SD 2.8) | 20.8 mmHg (SD 5.5) | 0.13 |
| CO2s | 18.6 mmHg (SD 3.1) | 21.1 mmHg (SD 5.4) | 0.05 |
CO2r indicates partial pressure of carbon dioxide at rest; CO 2s partial pressure of carbon dioxide after L-arginine infusion, HR r heart rate at rest, HR s heart rate after L-arginine infusion, MAP r mean arterial pressure at rest, MAP s mean arterial pressure after L-arginine infusion, SD standard deviation, v mr mean flow velocity in middle cerebral arteries at rest, v ms mean flow velocity in middle cerebral arteries after L-arginine infusion