[Value of measuring ankle brachial index for diagnosing peripheral arterial disease in Chinese patients with high cardiovascular risk].
OBJECTIVE
To evaluate the value of measuring ankle brachial index (ABI) for diagnosing peripheral arterial disease(PAD) compared with conventional digital subtraction angiography (DSA) as the reference standard.


METHODS
A total of 383 consecutive inpatients (245 male, mean age 64.1 +/- 11.7 years) underwent both conventional DSA and ABI measurements.


RESULTS
The rate of statin intervention was 90.9%, ACEI 69.2%, antiplatelet 96.6% and beta-blockers 67.9%. The intravascular stenosis was classified into six degrees: normal, < 30%, 30% - 49%, 50% - 69%, 70% - 89% and > or = 90%. Compared to the traditional gold standard (DSA) in diagnosis PDA, the ABI value decreased in proportion to the severity of PAD (the ABI value was 1.08 +/- 0.11, 1.05 +/- 0.16, 0.99 +/- 0.17, 0.66 +/- 0.24, 0.55 +/- 0.28 and 0.54 +/- 0.00 respectively in the six ranks). There was a significant correlation between DSA and ABI in diagnosis PAD.


CONCLUSIONS
ABI measurement is an accurate and reliable non-invasive alternative to conventional DSA in the assessment of lower extremity arteries in patients with peripheral arterial disease.
Li
Jue
J
Heart, Lung and Blood Vessel Center, Tongji University, Shanghai 200092, China.
Hu
Da-yi
DY
Pang
Wen-yue
WY
Guo
Xiao-ming
XM
Zhao
Ming-zhong
MZ
Luo
Ying-yi
YY
Qiao
Yong-xia
YX
Sun
Ying-xian
YX
D000368:Aged; D015901:Angiography, Digital Subtraction; D000842:Ankle / Q000098:blood supply; D055109:Ankle Brachial Index; D001916:Brachial Artery / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D016491:Peripheral Vascular Diseases / Q000175:diagnosis*; D011237:Predictive Value of Tests; D018570:Risk Assessment