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Calcium Test Predicts Stroke Risk
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A new study shows Coronary Artery
Calcium (CAC) predicts stroke in both men and women and is more accurate in
persons younger than 65 years than in older individuals. Lead investigator, Dirk
M. Hermann, MD (University Hospital Essen, Germany), stated that, "When a
patient stands in front of us we can find out about their risk factors such as
diabetes, blood pressure et c., but we don't know much about their extent of
vascular disease. We know that CAC is a good predictor of myocardial infarction,
but we wanted to know if it is a good predictor of stroke as well, and we found
that it was. This study shows that the risks go together. If a patient is at
risk of MI, they are also at risk for stroke. We now have a test that can tell
us if a patient is at risk of 2 very common conditions." "CAC, as we now have
shown, is able to predict stroke events independent of established risk factors,
making this marker promising for risk stratification not only in the hands of
cardiologists but also in the hands of neurologists," the authors conclude.
 For
the current study, 4180 persons aged 45 to 75 years from the population-based
Heinz Nixdorf Recall study without previous stroke, coronary heart disease or
myocardial infarction, were evaluated for stroke events over an average 94
months. Cox proportional hazards regressions were used to examine CAC as a
stroke predictor in addition to established vascular risk factors (age, sex,
systolic blood pressure, low-density lipoprotein, high-density lipoprotein,
diabetes mellitus, smoking, and arterial fibrillation). During the follow-up
period, 92 incident strokes occurred (82 ischemic and 10 hemorrhagic). Patients
who sustained a stroke had significantly higher CAC values at baseline (median,
104.8) than those without stroke (11.2).
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( Courtesy: http://jothydev.com/ )
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