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Diabetics' coronary calcium levels strongly linked to heart attack risk

Date:
September 26, 2011
Source:
University of California - Irvine
Summary:
Notable levels of calcium buildup in coronary arteries can be strong predictors of heart attacks and strokes in people with diabetes and metabolic syndrome, according to a new study.

Notable levels of calcium buildup in coronary arteries can be strong predictors of heart attacks and strokes in people with diabetes and metabolic syndrome, according to a study led by UC Irvine's Heart Disease Prevention Program.

The researchers also found that individuals with diabetes or metabolic syndrome but no evidence of coronary calcium had cardiac-event risks as low as many without these conditions.

Supported by the National Institutes of Health, the multiethnic study of atherosclerosis involved 6,600 people ages 45 to 84. About 16 percent were diabetic (primarily type 2); another 25 percent had metabolic syndrome, a combination of disorders that can lead to cardiovascular disease and diabetes.

The researchers wanted to know whether information from a heart scan for coronary calcium or an ultrasound of the neck's carotid artery could supplement standard factors -- high cholesterol, smoking, elevated blood pressure -- in assessing a person's chance of heart attack or stroke.

"Our study points out that there's a wide range in risk for cardiovascular consequences seen in persons with metabolic syndrome and diabetes and that screening of coronary calcium by heart scans -- and, to a lesser extent, carotid arteries by ultrasound -- may be helpful in picking out those most vulnerable," said Nathan Wong, UCI professor of medicine, director of the Heart Disease Prevention Program and senior author of the study.

"Our findings also suggest that individuals with significantly high levels of coronary calcium or carotid wall thickness should receive more aggressive monitoring and treatment for any associated risk factors," added co-author Dr. Shaista Malik, a UCI cardiologist.

These observations are consistent with guidelines released last year by the American Heart Association and American College of Cardiology recommending such screenings for diabetics 40 and older without known cardiovascular disease, as well as many people with metabolic syndrome.


Story Source:

The above story is based on materials provided by University of California - Irvine. Note: Materials may be edited for content and length.


Journal Reference:

  1. C. A. Abbott, R. A. Malik, E. R. E. van Ross, J. Kulkarni, A. J. M. Boulton. Prevalence and Characteristics of Painful Diabetic Neuropathy in a Large Community-Based Diabetic Population in the U.K.. Diabetes Care, 2011; 34 (10): 2220 DOI: 10.2337/dc11-1108

Cite This Page:

University of California - Irvine. "Diabetics' coronary calcium levels strongly linked to heart attack risk." ScienceDaily. ScienceDaily, 26 September 2011. <www.sciencedaily.com/releases/2011/09/110926132028.htm>.
University of California - Irvine. (2011, September 26). Diabetics' coronary calcium levels strongly linked to heart attack risk. ScienceDaily. Retrieved September 16, 2014 from www.sciencedaily.com/releases/2011/09/110926132028.htm
University of California - Irvine. "Diabetics' coronary calcium levels strongly linked to heart attack risk." ScienceDaily. www.sciencedaily.com/releases/2011/09/110926132028.htm (accessed September 16, 2014).

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