Evolution of the Accuracy of the Nexfin Pressure Signal Compared to Invasive and Noninvasive Arterial Blood Pressure
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 110
- 试验地点
- 1
- 主要终点
- vascular unloading time
研究概览
简要总结
The Nexfin monitoring device relies on noninvasive pressure measurement using a finger-cuff manometer, combined with NIRS technology. The accuracy of the signal is dependent on the degree of vascular unloading, which takes an period before optimal unloading is reached. The evolution of the degree of inaccuracy caused by inclomplete unloading is quantified, and the absolute and relative inaccuracy of the nexfin as a function of the time is determined compared to the invasive blood pressure (IBP).
Secondly, the accuracy of the Nexfin to predict the IBP is compared with the accuracy of noninvasive blood pressure to predict the IBP.
详细描述
In patients under stable anesthesia conditions, who have IBP and NIBP monitoring, the Nexfin will additionaly be connected. All data will be recorded for at least 30 minutes. NIBP will be measured every 5 minutes The evolution of the NIBP, IBP and Nexfin-derived blood pressure will be analysed to determine the evolution of inaccuracy due to incomplete vascular unloading and to determine the accuracy of Nexfin compared with NIBP to determine IBP.
研究设计
- 研究类型
- Observational
- 观察模型
- Other
- 时间视角
- Retrospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients that are accepted for surgery
排除标准
- •Patients unable or unwilling to provide consent.
结局指标
主要结局
vascular unloading time
时间窗: Start till end of operation
time to optimal vascular unloading
次要结局
- Bloodpressure(Start till end of operation)