Peripheral Endothelial Function and Coronary Status in Asymptomatic Type 2 Diabetic Patients: Relations With Coronary Microcirculation Assessed With Trans-thoracic Echo-doppler
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 173
- 试验地点
- 1
- 主要终点
- Post-occlusive hyperaemia endothelium-dependent brachial artery dilation
研究概览
简要总结
Silent myocardial ischemia is usual in type 2 diabetic patients and associated with coronary stenoses and endothelial dysfunction or both. We therefore hypothesized that peripheral endothelial dysfunction is a marker of silent myocardial ischemia. The aim of the study is, in 120 asymptomatic type 2 diabetic patients, to evaluate the relations between coronary status, assessed with myocardial scintigraphy and subsequent coronary angiography in case of abnormality, and peripheral endothelial function, according to post-occlusive hyperaemia endothelium-dependent brachial artery dilation.
详细描述
Coronary microcirculation, non invasively assessed with trans-thoracic echo-doppler (coronary blood flow before and after cold pressure testing), and biochemical markers of endothelial dysfunction will also be measured. Correlations between peripheral and coronary endothelial functions will be checked. The measurements will be performed and validated in two other groups
- 30 patients with overweight but free of diabetes, matched with the patients with diabetes for age, gender and body mass index
- 30 control subjects.Reproducibility of the methods will be assessed in 10 patients of the three groups of subjects.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 70 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- 未提供
排除标准
- 未提供
结局指标
主要结局
Post-occlusive hyperaemia endothelium-dependent brachial artery dilation
时间窗: immediate
次要结局
- cardiac autonomic neuropathy(immediate)
- noninvasive coronary microcirculation assessed with transthoracic ECHODOPPLER(immediate)
- cardiac transthoracic echography(immediate)
- biologic markers of endothelial function(immediate)