What is the most common symptom of peripheral arterial disease
exertional pain
interpretation post treadmill exercise
-drop in ankle pressure >20 mm/Hg confirms vascular etiology for claudication
a 2–6-minute recover time for post treadmill exercise?
consistent with single level disease
a recover time of 6-12 minutes post treadmill exercise
consistent with multi-level disease
what is an alternative method for stressing the peripheral arterial circulation when patients are poor ambulators, have poor cardiac or pulmonary status or limiting disease on the contralateral limb
post occlusive reactive hyperemia (PORCH)
describe the PORCH method
-bilateral thigh cuffs are inflated o supra-systolic pressure 20-30 mm/Hg above brachial pressure for 3-5 minutes
-produces ischemia induced vasodilation distally
-ankle pressures obtained immediate release of cuff occlusion
<50% drop in pressure with the PORCH method
consistent with single level disease
> 50% drop in pressure withe PORCH method
consistent with multi level disease