Topic Progress:


>1.3 Arterial calcification may be present
>1.0-1.3 Probably no peripheral arterial disease
0.81-1.00 No significant or mild peripheral arterial occlusive disease
0.51-0.80 Moderate peripheral arterial occlusive disease
<0.5 Severe peripheral arterial disease ‘critical ischaemia‘

Ankle brachial pressure index (ABPI) = ankle systolic blood pressure ÷ brachial systolic blood pressure

N.B: ABPI >1.3 may indicate arterial calcification, therefore toe pressure maybe more useful.

*Critical ischaemia: A globally accepted definition of critical ischaemia is awaited. Criteria widely used in clinical research do not use ABPI but use ankle or toe systolic pressures (≤50mmHg or ≤30mmHg, respectively) in combination with persistent, recurring rest pain despite regular analgesia for >2 weeks or ulceration or gangrene of the foot or toes (Harding et al., 2015).