Researchers who used a rest thallium/stress technetium-99m sestamibi protocol on patients who had underwent myocardial perfusion SPECT stress testing found that the common risk factors for silent ischemia, such as age, hypertension, diabetes and smoking, only predicted the disease in patients younger than 74, according to a study presented at the American Society of Nuclear Cardiology meeting. For patients aged 74 and older, the main predictor was age alone, the researchers said. "It could be that age alone is a very strong risk factor and perhaps in the elderly, the effect of age in causing silent ischemia overwhelms the other risk factors," said researcher Dr. Saurabh Malhotra from Krannert Institute of Cardiology in Indianapolis.

Related Summaries