Postoperative Delirium: Brain Vulnerability and Recovery
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 91
- 试验地点
- 2
- 主要终点
- EEG During Delirium and After Recovery and in Patient Controls.
研究概览
简要总结
In this study, we propose to use EEG and a brain imaging technique known as diffuse optical tomography (DOT) to study when people are in delirium and when they recovery. We plan to also compare brain function of patients who recovered from delirium to patients who did not have delirium using DOT and fMRI. We will also continually monitor the participant's EMR to help coordinate timing of study procedures, as well as to collect information pertaining to their surgery, recovery progress, and indicators of mental status including delirium.
详细描述
Postoperative delirium - a mental state of confusion, inattention, and impaired thought - is a potentially life-threatening condition. As many as half of patients that have heart and non heart-related surgery will experience postoperative delirium. Patients diagnosed with postoperative delirium have poorer outcomes and longer hospitalizations. Unfortunately, it is an under-diagnosed condition with a variable delay in when it appears. Additionally, there are no objective tools or tests that can be before or after surgery to anticipate and identify those patients who are at risk. Electroencephalography [EEG] and functional magnetic resonance imaging [fMRI] have helped us understand the changes in the brain during delirium. These suggest that a weakening in correlated activity within a group of brain regions, known as the default mode network (DMN), may be related to delirium.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- 60 Years 至 —（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
EEG During Delirium and After Recovery and in Patient Controls.
时间窗: Data acquisition will occur on 4 separate days between postoperative days 1-8.
Delta (0.5-4 Hz), theta (4-8 Hz), and alpha (8-12 Hz) EEG waveforms.
Functional Connectivity Diffuse Optical Tomography (fcDOT) in Patients During Delirium and After Recovery and in Patient Controls
时间窗: Data acquisition will occur on 4 separate days between postoperative days 1-8.
Functional connectivity between anterior and posterior Default Mode Network regions using diffuse optical imaging.
Functional Connectivity Magnetic Resonance Imaging (fcMRI) in Patients After Recovery From Delirium and in Patient Controls.
时间窗: Within one month after hospital discharge.
Functional connectivity between anterior and posterior Default Mode Network regions assessed from resting-state fcMRI acquired during eyes open wakefulness. Scored using r-value, using a scale of -1 to +1. -1 = strong negative correlation, +1 = strong positive correlation
次要结局
未报告次要终点
研究者
Ben Palanca
Assistant Professor
Washington University School of Medicine