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Circ J. 2014;78(3):671-8. Epub 2014 Jan 7.

New strategy for detection of subclinical coronary atherosclerosis in asymptomatic patients with type 2 diabetes based on cardiac multi-detector computed tomography and treadmill test.

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Department of Cardiology, Chonnam National University Hospital.



The current screening strategy for subclinical coronary atherosclerosis in asymptomatic diabetic patients is not sufficient in real clinical practice. A new strategy was investigated that uses cardiac multi-detector computed tomography (MDCT) and a treadmill test (TMT).


A total of 445 self-referred asymptomatic diabetic patients underwent cardiac MDCT. The treatment plan was determined according to the new strategy that uses MDCT and TMT. All patients underwent clinical follow-up and cardiac events were investigated. The incidence of subclinical atherosclerosis was 49.4%. The group without plaque underwent clinical follow-up without treatment and did not experience any cardiac events in 675.1 person-years of follow-up. Among patients with subclinical atherosclerosis without significant stenosis (n=136) who received medical treatment only, 11 patients experienced cardiac events over 326.4 person-years. The patients with significant stenosis (n=84) underwent TMT. Patients with positive TMT (n=14) underwent coronary angiograms and revascularization therapy was performed in all of them over 39.2 person-years. Patients with negative TMT (n=70) underwent medical treatment, and 27 of them experienced cardiac events. The incidence of cardiac death was 0% during 3 years of follow-up.


 The new strategy for detecting subclinical atherosclerosis on MDCT combined with TMT may be a useful method for minimizing the mortality rate from cardiovascular disease in asymptomatic diabetic patients. 

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