[Association between coronary artery stenosis and peripheral artery function in normotensive and hypertensive patients with coronary artery disease].
OBJECTIVE
To observe the relationship between the parameters of artery elasticity and coronary artery stenosis in normotensive and hypertensive patients with coronary artery disease (CAD).


METHODS
Systemic vascular compliance (SVC), systemic vascular resistance (SVR), brachial artery compliance (BAC) and brachial artery resistance (BAR) were measured by Dynapulse 200M (Pulse Metric, Inc., USA) in 88 hypertensive and 41 normotensive patients with chest pain before coronary artery angiography.


RESULTS
(1) The prevalence rate of severe coronary disease (> or = 2 coronary branches) was higher in hypertensives than in normotensives (64.7% vs. 27.1%, P < 0.05); (2) the peripheral artery buffering function was significantly lower in hypertensives than in normotensives [SVC: (0.85 +/- 0.10) ml/mm Hg (1 mm Hg = 0.133 kPa) vs. (1.17 +/- 0.11) ml/mm Hg; BAC: (0.047 +/- 0.011) ml/mm Hg vs. (0.063 +/- 0.010) ml/mm Hg, all P < 0.05]; (3) Lower arterial elasticity was associated with severe coronary artery stenosis.


CONCLUSIONS
The non-invasive obtained artery elasticity is associated with the degree of coronary artery stenosis in hypertensive patients with CAD.
Ma
Zhi-yi
ZY
Department of Hypertension, People's Hospital of Peking University, Beijing 100044, China.
Sun
Ning-ling
NL
D000368:Aged; D001794:Blood Pressure; D017023:Coronary Angiography; D003324:Coronary Artery Disease / Q000150:complications / Q000000981:diagnostic imaging / Q000503:physiopathology*; D023921:Coronary Stenosis / Q000150:complications / Q000000981:diagnostic imaging / Q000503:physiopathology*; D005260:Female; D006801:Humans; D006973:Hypertension / Q000150:complications / Q000000981:diagnostic imaging / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D011674:Pulse