BACKGROUND: Individuals referred for stress testing to identify @entity453 may have nonobstructive @entity731 , which is not detected by stress tests. Identification of increased risk despite a negative stress test could inform prevention efforts. Abnormal @entity3681 ( @entity3681 ) is associated with increased cardiovascular risk. HYPOTHESIS: Routine @entity3681 testing in the stress laboratory will identify unrecognized peripheral @entity455 in some @entity1 . METHODS: @entity1 referred for stress testing without known history of @entity731 underwent @entity3681 testing (n = 451). Ankle-brachial index was assessed via simultaneous arm and leg pressure using standard measurement, automated blood-pressure cuffs at rest. Ankle-brachial index was measured after exercise in 296 @entity1 and 30 healthy controls. Abnormal postexercise @entity3681 was defined as a >20% drop in @entity3681 or fall in ankle pressure by >30 mm Hg. RESULTS: Overall, 2.0% of @entity1 had resting @entity3681  <=0.90, 3.1% had @entity3681 >= 1.40, and 5.5% had borderline @entity3681 . No @entity1 with abnormal or borderline @entity3681 had an abnormal stress test. @entity1 who met peripheral @entity455 screening criteria (age >= 65 or 50-64 with @entity6 or smoking) tended toward greater frequency of low @entity3681 (2.9% vs 1.0%; P = 0.06) and were more likely to have borderline @entity3681 (0.91 to 0.99; 7.8% vs 2.9%; P = 0.006). Postexercise @entity3681 was abnormal in 29.4% of @entity1 and 30.0% of controls (P not significant). CONCLUSIONS: Ankle-brachial index screening at rest just before stress testing detected low @entity3681 in 2.0% of @entity1 , all of whom had negative stress tests.

Ankle-Brachial Index Testing at the Time of Stress Testing in @entity1 Without Known XXXX .

@entity1 :: ('9606', 'Species') :: ['participants', 'patients', 'patient', 'Participants'] @entity455 :: ('MESH:D014652', 'Disease') :: ['arterial disease'] @entity6 :: ('MESH:D003920', 'Disease') :: ['diabetes'] @entity3681 :: ('MESH:D016512', 'Disease') :: ['ABI', 'ankle-brachial index'] @entity731 :: ('MESH:D050197', 'Disease') :: ['atherosclerosis', 'atherosclerotic disease'] @entity453 :: ('MESH:D003324', 'Disease') :: ['coronary artery disease']
@entity731 :: (MESH:D050197,Disease) :: ['Atherosclerosis']
