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Severe asymptomatic heart disease may accompany narrowing in leg arteries
Date:12/1/2009

ients who received cardiac imaging, computed tomography (CT) revealed that 53, or 46 percent, had at least one significant narrowing of a coronary artery. Of those 53 patients, 22 had significant narrowing in the left main coronary artery or its equivalent, and were referred for treatment. Eight of those patients subsequently had bypass surgery, and three underwent coronary angiography with stent placement. The remaining patients were treated with medication.

Cardiac stress MRI was then performed on 76 patients. Cardiac stress MRI, in which a drug is infused into the patient's bloodstream to make the heart work harder, helps determine if the heart muscle is receiving adequate blood flow. Results of the cardiac stress MRI exams identified two additional patients with signs of coronary artery disease, one of whom underwent angiography and stent placement.

In total, 24 (21 percent) of the 115 patients who underwent imaging had evidence of asymptomatic but severe coronary artery disease that required additional treatment.

"In PAD patients experiencing no cardiac symptoms, we found a strikingly high rate of severe coronary artery disease," Dr. Vliegenthart Proenca said. "The results of our trial stress that PAD patients without a history of cardiac symptoms should undergo extensive cardiovascular risk factor management."


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Contact: Linda Brooks
lbrooks@rsna.org
630-590-7762
Radiological Society of North America
Source:Eurekalert

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