To assess the prevalence and clinical significance of elevated ankle-brachial index (ABI) in patients referred to vascular consultation.
Retrospective clinical study.
In 1,762 patients referred with a suspicion of peripheral arterial disease (PAD), ABI and toe brachial index (TBI) were measured by photoplethysmography. ABI>/=1.3 was considered falsely elevated and TBI/=1.3) in recognizing PAD is good, whereas the sensitivity is only satisfactory.