Swollen feet and legs, referred to medically as edema, occur when fluid is retained in the spaces between body cells. Edema typically affects the feet, ankles and lower legs, but can also impact any area of the body, causing systemic symptoms. Causes:
Ankleâbrachial pressure index - Interpretation of results. 1  In a normal subject the pressure at the ankle is slightly higher than at the elbow (there is reflection of the pulse pressure from the vascular bed of the feet, whereas at the elbow the artery continues on some distance to the wrist).
We have designed and developed the first valuable automated ankle-brachial index measuring device (ABPI MD), based on oscillometric method (one of the plethysmographic techniques). The blood pressure on the upper and lower extremities is measured simultaneously, resulting in the calculation of the ankle-brachial index (ABI). The result of the examination is clear and straight forward. Only what is really important â the left ABI, right ABI and brachial blood pressure â are displayed.