Correlation Between Echocardiographic Indices of Diastolic Function (E/E') and Left Ventricular End Diastolic Pressure (LVEDP) in Patients With Mitral Annular Calcification
试验速览
- 阶段
- 不适用
- 状态
- 终止
- 入组人数
- 4
- 试验地点
- 1
- 主要终点
- Agreement between invasive and non-invasive measures of LVEDP
研究概览
简要总结
This study aims to evaluate the accuracy of the echocardiographic data obtained from patients with calcifications in the mitral valve who are undergoing a cardiac (heart) catheterization.
Echocardiography is a non-invasive (does not break the skin) procedure used to see an image of the heart. It uses harmless sound waves to create an image of the heart on a computer screen. These images will show the valves of the heart, how well the heart is pumping blood, the blood flow across these valves and how large the heart is. A silver paddle-shaped device is moved easily over the skin to capture these images.
Calcification (hardening) of the heart valves and heart rings (fibrous tissue surrounding the valves) is a common finding and it increases with age. The presence of calcification changes the blood flow through the heart valves. This makes any echocardiographic data (information) obtained from patients with calcifications difficult to interpret.
详细描述
Patients with significant mitral annular calcification (MAC) have largely been excluded from studies validating non invasive (echocardiographic) measurements of left ventricular filling and diastolic function. The investigators hypothesize that echocardiographic estimates of diastolic function, left atrial pressure (LAP) and left ventricular end diastolic pressure (LVEDP) are likely to be fallacious in patients with moderate to severe mitral annular calcification due to the structural alterations and technical difficulties involved.
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
- 19 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •>= 19 years of age
- •undergoing planned cardiac catheterization
排除标准
- •< 19 years of age
- •acute coronary syndrome
- •decompensated heart failure
- •not in sinus rhythm
- •> mild MR
- •hypertensive urgency/emergency
- •severe aortic stenosis
- •poor echo windows for Doppler imaging
结局指标
主要结局
Agreement between invasive and non-invasive measures of LVEDP
时间窗: participants will be followed for the duration of hospital stay, an expected average of 2 days
evaluate the agreement between the E/E' ratio by echocardiography and the left ventricular end-diastolic pressure by cardiac catheterization in patients with moderate to severe mitral annular calcification
次要结局
未报告次要终点