The exercise test as described in this study gives graphic evidence of the deficit in muscle blood flow during exercise in patients with intermittent claudication. It is easy to perform and can be done on an outpatient basis. The equipment cost is reasonable, NaI131 is available in most hospitals, and the amount of radioactive material received by the patient is very small. Two people can perform the test on both legs of a patient in 45 minutes. Records are easy to interpret; if the isotope disappearance stops, the counts need not even be plotted to determine if the test is abnormal.
The exercise test can be used in the diagnosis of leg pain of uncertain etiology, to study the effects of medical or surgical treatment, and in the clinical investigation of the symptoms of intermittent claudication.
- © 1966 American Heart Association, Inc.