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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00431717
Other study ID # B-0609/037-019
Secondary ID
Status Completed
Phase N/A
First received February 5, 2007
Last updated August 22, 2008
Start date November 2006
Est. completion date September 2007

Study information

Verified date August 2008
Source Seoul National University Bundang Hospital
Contact n/a
Is FDA regulated No
Health authority Korea: Food and Drug Administration
Study type Observational

Clinical Trial Summary

The purpose of this study is to compare the difference of diagnostic efficiency between coronary CT angiography and myocardial perfusion single photon emission computerized tomography in asymptomatic patients with type 2 diabetes mellitus.


Description:

Coronary artery disease (CAD) is the leading cause of death in patients with diabetes. Patients with diabetes are known to have silent myocardial ischemia more frequently than those without diabetes. Furthermore, CAD in patients with diabetes frequently manifested in advance stage, and morbidity and mortality are higher than those without diabetes. Early screening and treatment of CAD in asymptomatic patients with diabetes might reduce high morbidity and mortality.

Myocardial perfusion single photon emission computerized tomography (SPECT) is known as a gold standard method in detecting silent myocardial ischemia in asymptomatic patients with diabetes. Despite of the power of detecting myocardial ischemia functionally, there are limitations of SPECT in diagnosing subclinical coronary atherosclerosis anatomically. In recent advance in technology, coronary CT angiography (CTA) could detect subclinical coronary atherosclerosis. However, there is a paucity of information comparing the diagnostic power between SPECT and CTA.

Therefore in our study, we compare the difference of diagnostic efficiency between coronary CT angiography and myocardial perfusion single photon emission computerized tomography in asymptomatic patients with type 2 diabetes mellitus.

In this study, we will recruit asymptomatic patients with diabetes. At the time of enrollment, all patients will undergo two imaging studies (SPECT and CTA) within a few days apart. When patients had positive result in either study, they will undergo coronary angiography for confirmation. We will evaluate the results of two studies comparing with coronary angiography. When the patients are eligible for study, investigators will give information about the study and obtain written consent. The presence of chest pain symptom will be screened with Rose questionnaire. Medical history and physical examination will be performed, and baseline laboratory work-up will be performed. Investigators will evaluate the status of diabetic complication (retinopathy/nephropathy/cardiac autonomic neuropathy).


Recruitment information / eligibility

Status Completed
Enrollment 116
Est. completion date September 2007
Est. primary completion date September 2007
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Both
Age group 50 Years to 75 Years
Eligibility Inclusion Criteria:

1. Type 2 diabetes mellitus

2. Age 50 ~ 75 years

3. Duration of diabetes: more than 5 years

4. More than two of the following risk factors in addition to diabetes:

1)dyslipidemia, 2)hypertension, 3)smoking, 4)family history of premature coronary artery disease

Exclusion Criteria:

1. Angina pectoris or anginal equivalent symptoms

2. Insulin pump user or history of ketoacidosis

3. History of myocardial infarction, heart failure, or coronary revascularization

4. Electrocardiographic evidence of Q-wave myocardial infarction, ischemic ST- segment or T-wave changes, or complete left bundle branch block

5. Uncontrolled arrythmia

6. Hypersensitivity to contrast dye

7. Renal failure

Study Design

Observational Model: Cohort, Time Perspective: Prospective


Locations

Country Name City State
Korea, Republic of Seoul National University Bundang hospital Sungnam-si Kyungki-do

Sponsors (1)

Lead Sponsor Collaborator
Seoul National University Bundang Hospital

Country where clinical trial is conducted

Korea, Republic of, 

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