ORLANDO, Fla. - Results of a Mayo Clinic study show that a simple, noninvasive finger sensor test is "highly predictive" of a major cardiac event, such as a heart attack or stroke, for people who are considered at low or moderate risk, according to researchers.
The study will be presented Tuesday, March 31, 2009 at 11:30 a.m. EDT at the American College of Cardiology Annual Scientific Session in Orlando (0917-7).
The noninvasive finger test device, called the EndoPAT by Itamar Medical, measures the health of endothelial cells by measuring blood flow. Endothelial cells line the blood vessels and regulate normal blood flow. Research has shown that if the cells don't function properly - a condition called endothelial dysfunction - it can set the stage for atherosclerosis (hardening of the arteries) and lead to major cardiovascular health problems. Previously, there was no simple test for endothelium function, says Amir Lerman, M.D., a cardiologist at Mayo Clinic and the senior author of the study.
Forty-nine percent of patients whose EndoPAT test indicated poor endothelial function had a cardiac event during the seven-year study. Researchers at Mayo Clinic and Tufts-New England Medical Center in Boston used the device to test 270 patients between the ages of 42 and 66 and followed their progress from August 1999 to August 2007. These patients already knew that they had low-to-medium risk of experiencing a major heart event, based on their Framingham Risk Score. The score is the commonly used risk predictor and was developed from the Framingham Heart Study, a longitudinal study of heart disease.
Some of their risk factors included high blood pressure, high cholesterol, obesity and a family history of heart disease, Dr. Lerman says. "The results of the study may help identify a discriminating tool beyond the Framingham Risk Score," he says. "And the results of these individual tests may help physicians change a patient's medicat
|Contact: Traci Klein|