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Reactive Hyperemia

What is Reactive Hyperemia?

In special cases, the reactive hyperemia test (RH) can replace the standard exercise tests and induce vascular stress.

The Reactive Hyperemia test is allowed only in certain countries.

Stress testing is frequently used in peripheral vascular diagnosis to differentiate between different vascular disorders, or to determine the functional severity of an arterial stenosis. Systolic pressures are measured before and after inducing vascular stress. While typically the patient is asked to perform a physical exercise such as exercise on a treadmill, sometimes the patients have difficulties in performing exercise.

RH requires to inflate a pressure cuff in order to occlude the blood flow to the limb or segment of interest for up to several minutes, and then rapidly releasing the cuff pressure in order to generate the hyperemic effect.

It is crucial that a professional examiner will be present near the patient at all time, and immediately deflate the pressure cuffs when necessary.

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