Exercise electrocardiography

A. Sensitivity of exercise electrocardiography (Master "2-step" exercise test, graded exercise [treadmill] test) may be reduced for patients unable to reach the level of exercise required for near maximal effort, such as:

1. Patients taking beta blockers

2. Patients in whom fatigue, dyspnea, or claudication symptoms develop

3. Patients with vascular, orthopedic, or neurologic conditions who cannot perform leg exercises

B. Reduced specificity may be seen in patients with abnormalities on baseline electrocardiograms, such as those taking digitalis medications, and in patients with left ventricular hypertrophy or left bundle branch block.

III. Noninvasive imaging. A noninvasive imaging study such as myocardial perfusion scintigraphy or stress echocardiography may be indicated in patients unable to complete exercise electrocardiography. Exercise electrocardiography and prognostic imaging studies may yield results that indicate high, intermediate, or low risk of adverse clinical events. High-risk patients should have a cardiology consultation. Patients who are at intermediate risk may benefit from noninvasive imaging. Low-risk patients can be managed medically with a good prognosis.

Run for Your Life The Health Benefits Of Treadmills

Run for Your Life The Health Benefits Of Treadmills

Improve your hearts health? Lose a few pounds? Or simply become more active? If that is your goal, then maybe its time for you to do some exercise. But where do you start?

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