Sleep Disruption in Post-operative Patients in the Neurocritical Care Unit
试验速览
- 阶段
- 不适用
- 状态
- 终止
- 入组人数
- 1
- 试验地点
- 2
- 主要终点
- Detect the effects of disrupted sleep with quantitative EEG analysis
研究概览
简要总结
The role of sleep in patients admitted to the intensive care unit is an emerging field of research. There have been studies that show patients in the ICU have poor sleep including sleep fragmentation, multiple arousals, decreased stage 3 sleep and reduced REM sleep (1, 2, 3). Causes of poor sleep in the ICU include severity of illness, abnormal light exposure, and frequent arousals for medical care. Not only does poor sleep contribute to reduced cognitive function and delirium, but there are also implications for the immune system function and wound healing (4). Polysomnography is regarded as the gold standard for sleep studies, however it has limited utility in the ICU population (5) and alternative methods of sleep analysis need to be investigated to better understand the underlying physiologic mechanisms and subsequent cognitive effects.
详细描述
The importance of sleep for patients in the intensive care unit (ICU) has been well documented. Research has shown that the ICU has multiple risk factors for poor sleep, and that this has multiple effects on patient outcomes. Further research is needed to better define the best tool to use for measuring sleep stages in ICU patients. Furthermore, there is very limited data comparing sleep interruption in ICU patients and the effects on sleep architecture and cognition.
Hypothesis 1a: The number of episodes of rapid eye movements (REM), stage 1, stage 2, stage 3 sleep, sleep spindles, and alpha activity will increase while the total duration of activity and the duration of episodes will decline in the postoperative neurologic critical care unit (NCCU) with neurological checks every two hours over a 12 hour period of recording as compared to every 6 hours.
Hypothesis 1b: As the number of episodes of REM, stage 1, stage 2, stage 3 sleep, sleep spindles, and alpha activity increase while the total duration of activity and the duration of episodes decline in the postoperative NCCU with neurological checks every two hours over a 12 hour period of recording as compared to every 6 hours.
Hypothesis 2: The number of episodes, the total duration, and the interval durations, of REM, stage 1, stage 2, stage 3 sleep, sleep spindles, and alpha activity will be identical in the automated recordings as compared to human reading by a sleep trained Neurologist.
Hypothesis 3: The group with awakenings every two hours will report more objective sleepiness and perform psychomotor visual task (PVT) with increased time and reduced performance.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Diagnostic
- 盲法
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 100 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •post operative back patients in the NCCU with no history of brain injury
排除标准
- 未提供
研究组 & 干预措施
group 2
no intervention
group 1
sleep disruption
干预措施: sleep disruption (Behavioral)
结局指标
主要结局
Detect the effects of disrupted sleep with quantitative EEG analysis
时间窗: Up to 12 hours
The investigators will use an automated EEG detection system used in patients with continuous EEG (cEEG) monitoring to detect duration of sleep related EEG brain activity, number of intervals of activation, and the duration of the intervals for sleep activities including: REM, Stage 1, stage 2, and stage 3 sleep, sleep spindles, and alpha activity.
次要结局
- Precision, accuracy and bias of the automated cEEG algorithm by comparing it to the interpretations of sleep trained neurologists(Up to 4 hours)
- Subjective measure of sleep assessment using the Richards-Campbell Sleep Questionnaire(Up to 12 hours)
- Quantitative assessment of alertness using a psychomotor vigilance task (PVT).(Up to 12 hours)