P7.05 DETERMINATION OF THE BEST ANKLE BRACHIAL INDEX THRESHOLD VALUES FOR THE ROUTINE DETECTION OF A SIGNIFICANT LOWER LIMB ARTERIAL STENOSIS USING AN AUTOMATED DEVICE
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- 10.1016/j.artres.2011.10.112How to use a DOI?
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Objectives: To assess the prevalence of significant lower limb arterial stenosis in a population of patients with an increased cardiovascular risk and to determine the best ankle brachial index (ABI) threshold value for its detection.
Methods: In patients with treated hypertension and/or another cardiovascular risk factor (dyslipidemia, current smoking, diabetes), ABI was measured using an automated oscillometric device with 2 synchronized cuffs (SCVL®, Genov, Paris). The presence of atherosclerotic plaques was assessed independently by a Doppler/ultrasound exam.
Results: We included 201 patients. Fifty two percent were men, of 58 ±13.4 years old. Fifty 6 percent were treated for hypertension, 23% for diabetes and 72% had dyslipidemia. There was 21 % of current smokers and 33% of previous smokers. A clinical peripheral arterial disease (PAD) was noted in 7 % of the patients and the presence of a femoral stenosis > 50% in 7.7%. The prevalence of an ABI < 0.9 was 19.7% and 16.6% for an ABI <0.85. The ABI performance to detect a significant femoral plaque or a clinical PAD is detailed in the table. The best predictors of the presence a PAD or a significant plaque are one of the 3 following ABI values : <0.85 or >1.30 or missing signal.
Conclusion: In our population, the prevalence of a significant inferior limb stenosis was 7.7%. The ABI was easily and quickly measured by the automated device. Our study attests the feasibility of this approach to detect PAD and arterial stenosis in daily practice in this population.
| Sensibility (%) | Specificity (%) | Positive predictive value (%) | Negative predictive value (%) | |
|---|---|---|---|---|
| ABI < 0.9 | 83.3 | 84.5 | 26.3 | 98.7 |
| ABI <0.9 or >1.3 or missing signal | 93.3 | 83.4 | 31.8 | 99.3 |
| ABI <0.85 | 83.3 | 87.8 | 31.3 | 98.8 |
| ABI <0.85 or >1.35 or missing signal | 93.3 | 87.3 | 37.8 | 99.4 |
Cite this article
TY - JOUR AU - D. Rosenbaum AU - S. Rodriguez Carranza AU - P. Laroche AU - P. Giral AU - E. Bruckert AU - X. Girerd PY - 2011 DA - 2011/11/29 TI - P7.05 DETERMINATION OF THE BEST ANKLE BRACHIAL INDEX THRESHOLD VALUES FOR THE ROUTINE DETECTION OF A SIGNIFICANT LOWER LIMB ARTERIAL STENOSIS USING AN AUTOMATED DEVICE JO - Artery Research SP - 180 EP - 180 VL - 5 IS - 4 SN - 1876-4401 UR - https://doi.org/10.1016/j.artres.2011.10.112 DO - 10.1016/j.artres.2011.10.112 ID - Rosenbaum2011 ER -