Influence of multiple blood pressure measurements on the estimation of the ankle-brachial index and the consequent diagnosis of peripheral artery disease

Blood Pressure Monitoring
Diego Real de AsúaCarmen Suárez

Abstract

The ankle-brachial index (ABI) is the most useful and efficient tool for assessing the presence of peripheral artery disease (PAD). The aim of this study was to evaluate the effect of multiple sequential blood pressure (BP) measurements on the estimation of the ABI and the consequent diagnosis of PAD in a high vascular risk population. This is a cross-sectional study of 71 patients admitted to the Cardiology Department or evaluated as outpatients in the Internal Medicine Department at our institution. The ABI was calculated with the first blood pressure (BP) measurement in the arm with the higher BP (dominant arm; method A) and with the average of the second and third measurements in that same arm (method B). The results of both methods were compared. No statistically significant difference was found for the numerical value of ABI between the methods. The κ correlation index for agreement in the diagnosis of PAD between the methods was 0.87 (95% confidence interval: 0.74-0.99). Multiple BP measurements had no impact on the final ABI or on the subsequent diagnosis of PAD.

Citations

Nov 25, 2014·Journal of the American Society of Hypertension : JASH·Kaiwu CaoHai Su
Mar 22, 2014·Blood Pressure·Gustavo C Rodriguez-RocaUNKNOWN RICARTO (Riesgo Cardiovascular Y Eventos Cardiovasculares En La Población General del Área Sanitaria De Toledo) Project Work

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