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Tema livre: Correlation patients. of Ankle-Brachial Index measured by Doppler Sphygmomanometer and Automatic oscillometric device in Elderly

Roberto Dischinger Miranda, CPF 888.897.347-87Dionísio Alvarez Mateos Filho = CPF 195.034.158-53 Marco Mota Gomes, Audes Magalhães Feitosa, Clineu de mello Almada Filho, 094781238-58 João Toniolo Neto 050531288-39 Maysa Seabra Cendoroglo070875728-65

Introduction: Peripheral arterial disease (PAD) is associated with high cardiovascular risk and is more common in elderly patients. The ankle-brachial index (ABI) is a noninvasiverecognized method to detect these patients. Its use in clinical practice is limited by the need of specialized equipment and the time required for performance. Purpose: We hypothesized that theABI obtained by oscillometric automatic device could provide accuracy necessary for office practice. Methods: Each patient signed a informed consent. After 10 minutes of rest, blood pressure ofboth arms and legs, was taken in duplicate by validated automatic oscillometric devide (Microlife MAM – BP 3AC-1®) and by mercury sphygmomanometer with Doppler ultrasound. Mean value was used forABI calculation. Results: 144 outpatients with 60 years old or more, were included. The correlation coefficient was 0.632 in the left leg and 0.705 in the right leg. ABI obtained withoscillometric automatic presented average value slightly higher (0,06) than with the Doppler method. The values obtained are:

ABI Right Doppler
Mean Standard Deviation 1,05 0,17

ABI Left Doppler1,07 0,15

ABI Right Oscillometric
1,12 0,12

ABI Left Oscillometric
1,12 0,13

Conclusions: Oscillometric automatic showed to be a reliable method to obtain ABI. We believe that the useof this technique can make the ABI more frequently measured in clinical practice. This can bring on more precocious diagnosis and treatment of patients with high cardiovascular risk.