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UC Davis study shows that treadmill testing can predict heart disease in women
Date:12/6/2012

(SACRAMENTO, Calif.) Although there is a widespread belief among physicians that the exercise treadmill test (ETT) is not reliable in evaluating the heart health of women, UC Davis researchers have found that the test can accurately predict coronary artery disease in women over the age of 65. They also found that two specific electrocardiogram (EKG) indicators of heart stress during an ETT further enhanced its predictive power.

Published in the December issue of The American Journal of Cardiology, the study can help guide cardiologists in making the treadmill test -- an accessible, economic and easy-to-administer evaluation of patients with heart disease symptoms -- more useful in clinical practice.

"Newer cardiac imaging technologies are more accurate in identifying the presence of heart disease, but those tests are considerably more expensive than ETT and in many cases unnecessary" said Ezra Amsterdam, senior author of the study and UC Davis professor of cardiovascular medicine. "Our study found that the test is a very valuable tool for identifying coronary artery disease in women older than 65, and that it can be used to help select those who may require higher-tech diagnostics."

During ETT, a patient exercises on a treadmill at gradually increasing speed and elevation while undergoing blood pressure monitoring and an EKG to gauge exercise-induced changes in the heart's electrical activity. If signs of heart disease are present, more definitive and invasive evaluations such as coronary angiography may be conducted to determine if any blood vessels are narrowed or blocked by plaque. Coronary angiography, which produces a series of X-rays of the interior of the arteries by injecting dye into them to make them visible, may be recommended when there is evidence of heart disease.

The current study analyzed 111 women who had seen their doctors at UC Davis Medical Center because of chest pain and whose exercise treadmill
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Contact: Karen Finney
karen.finney@ucdmc.ucdavis.edu
916-734-9064
University of California - Davis Health System
Source:Eurekalert

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