Sex and Obesity Effects on Myocardial Blood Flow and Metabolism
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 19
- 试验地点
- 1
- 主要终点
- Average Myocardial Blood Flow
研究概览
简要总结
Sex has a major impact on myocardial metabolism and blood flow. In those without heart failure men's hearts tend to use proportionally more glucose and women's hearts use more fat and have higher blood flow.
Obesity is a major risk factor for Heart Failure. In those without heart failure, increasing body mass index is predictive of increased blood flow and fatty acid metabolism in women, but not men.
To measure blood flow and metabolism we used radioactive materials and a PET (positron emission Tomography) scan to study the blood flow and substrate metabolism of the heart.
Hypotheses: 1) Women with heart failure with reduced ejection fraction (HFrEF) will have higher levels of heart blood flow and fatty acid metabolism and lower glucose metabolism rates than men with HFrEF. A secondary Aim was to test the hypothesis that body mass index (BMI), a measure of obesity, correlated with myocardial blood flow and myocardial metabolism measures in patients with HFrEF.
研究设计
- 研究类型
- Observational
- 观察模型
- Other
- 时间视角
- Prospective
入排标准
- 年龄范围
- 20 Years 至 65 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- 未提供
排除标准
- 未提供
结局指标
主要结局
Average Myocardial Blood Flow
时间窗: Study Day 2
Myocardial blood flow (MBF) was measured using \^15O-water injected intravenously intravenously through a large bore catheter into an antecubital vein during the (Positron Emission Tomography (PET) scan on Study Day 2.
次要结局
- Average Myocardial Fatty Acid Utilization(Study Day 2)