Objective: The
aim of our study is to evaluate the blood flow velocity in the vertebral and
internal carotid arteries in hypertensives.
Method: We
investigated the blood flow velocity (Q) in 34 hypertensive patients (pts),
male and female, aged 56±2
years: group A - 21 pts with
haemodynamically insignificant atherosclerotic lesions and kinking in
carotid arteries only, group B -
13 pts with above pathology in
carotid and vertebral arteries. Q was estimated in the internal carotid and
vertebral arteries from both sides with two-dimensional ultrasound images, with
7.0 MHz linear array transducer and ACUSON 128XP/10 system.
Results:
|
Parameter |
A |
B |
|
BP syst, mm Hg |
172±6 |
156±5 |
|
BP diast, mm Hg |
104±3 |
100±2 |
|
HR |
70±3 |
66±3 |
|
Q, ml/min |
635,6±21,9 |
554,8±32,7* |
* p <0.05; all
data are expressed as M±SE.
Conclusion: Q was
significantly lower in the group B. The hypertensives with haemodynamically insignificant
pathology in carotid and vertebral arteries have a higher risk of
cerebrovascular complications.