• 作者：Inmaculada Alonso^a ; Pedro Valdivielso^b ; ^{valdivielso@uma.es} ; Marí ; a Josefa Zamudio^a ; Miguel Á ; ngel Sá ; nchez Chaparro^b ; Francisca Pé ; rez^a ; Heliodoro Ramos^a ; Pedro Gonzá ; lez Santos^b
• 关键词：Í ; ndice tobillo-brazo ; Riesgo vascular ; Població ; n laboral
• 刊名：Medicina Cl铆nica
• 出版年：2009
• 期刊代码：pca254_00257753
• 类别：med
• 出版时间：17 January 2009
• 卷：132
• 期：1
• 页码：7-11
• 文件大小：189 K

Background and objective

Detection of asymptomatic peripheral arterial disease increases the risk of vascular morbibity and mortality. We aimed to estimate the prevalence of clinical and subclinical peripheral arterial disease using the ankle-arm index (AAI) as diagnostic tool in a working population.

Subjects and method

We included 450 workers, older than 50 years old, attending voluntary regular health check-up at Centro de Prevenci贸n de Riesgos Laborales de la Junta de Andaluc铆a in M谩laga (Spain). We recorded clinical and anthopometrical data. Blood samples were taken after an overnight fast. Vascular risk was calculated using Framinghan and SCORE scales. Every participant was asked for symptoms of intermittent claudicatio and AAI was measured. AAI was considered normal within 0.9鈥?.3 values.

Results

Most of our workers were at low- or moderate vascular risk. Only 48 (10.6%) of individuals had an abnormal AAI: 9 (2%) showed an AAI<0.9 and 39 (8.6%) showed an AAI>1.3. An AAI<0.9 was found in 19%of those with a SCORE risk 猢?%, and in 11%of those having a Framinghan risk 猢?0%. Intermittent claudication was present in 4 out of 9 (44%) of those having an AAI<0.9 and in 7 out of 402 (1.7%) with a normal AAI.

Conclusions

Systematic screening of peripheral arterial disease using the AAI is not recommended in active working population over 50 years-old of age. Thus, AAI measurement is indicated only for those individuals suffering from intermitent claudicatio and those who are at moderate- or high vascular risk.