Low frequency | High frequency | |||||
---|---|---|---|---|---|---|
Variables | Subjects | Supine | Standing | Supine | Standing | |
MFV vRR | Control | 2.59 (0.3) | 2.10 (0.4)‡ | 0.69 (0.7) | 0.63 (0.8) | |
VVS | 2.62 (0.3) | 2.30 (0.3)‡ | 0.68 (1.1) | 0.20 (1.1) | ||
Diabetic | 2.39 (0.4) | 1.99 (0.4)‡ | 0.13 (1.1) | 0.56 (1.1) | ||
MFVv SAP | Control | 1.38 (0.3) | 1.13 (0.1)‡ | 0.38 (0.5) | 0.15 (0.3) | |
VVS | 1.36 (0.2) | 1.03 (0.3)‡ | 0.36 (0.3) | 0.14 (0.4) | ||
Diabetic | 0.91 (0.1)3-150 | 1.07 (0.3) | 0.13 (0.4) | 0.11 (0.2) | ||
MFV vDAP | Control | 1.30 (0.3) | 0.95 (0.1)‡ | 0.12 (0.5) | 0.45 (0.8) | |
VVS | 1.17 (0.3) | 0.91 (0.2)‡ | −0.42 (0.9) | −0.04 (1.5) | ||
Diabetic | 0.85 (0.2)† | 0.81 (0.2) | −0.11 (0.6) | 0.10 (0.8) |
Values are mean (SD).
↵3-150 p < 0.05, †p < 0.01 v both control and VVS group; ‡p < 0.5 v supine position.
DAP, diastolic arterial blood pressure; MFV, mean cerebral blood flow velocity; RR, RR interval; SAP, systolic arterial blood pressure; VVS, vasovagal syncope.