EEG Phase SynchrOny, Sedation and Delirium in the CVICU - The SOS Study
试验速览
- 阶段
- 不适用
- 入组人数
- 100
- 试验地点
- 1
- 主要终点
- Electroencephalography (EEG)
研究概览
简要总结
EEG phase synchrony and variability has had limited investigation during transition from coma to wakefulness in response to sedation and analgesia. Studying changes in phase synchrony and variability during and after sedative-induced coma is an exciting opportunity to better understand EEG changes during transitions in states of arousal. It is expected that consciousness should be higher in entropy and greater in complexity in the number of configurations of pairwise connections as compared to sedative-induced coma. If sufficiently sensitive, it may be possible to identify states of lower entropy and fewer configurations when patient are aroused but with altered sensorium (e.g. delirium).
详细描述
Aim 1: To quantify EEG phase synchrony changes, both globally and locally by brain region, during emergence from medically induced coma required for performance of a cardiovascular related operation (deep sedation defined as a Riker Sedation-Agitation Scale [SAS] of 1-2).
Hypothesis: The global R-index will be increased above baseline at multiple frequency bandwidths and the magnitude of R-index will correlate with the sedative dosage (as a crude measure of depth). The rate of fluctuations of the R-index will decrease with deeper sedation.
Aim 2: To compare the magnitude of the EEG phase synchrony globally and locally in patients emerging from coma; a patient's pre-anesthesia phase will serve as a control.
Hypothesis: Fluctuations in R-index will vary; fluctuations will be greater in awake adults as compared to while comatose or emerging from coma.
Aim 3: To determine EEG phase synchrony changes in patients with and without delirium during their CVICU stay.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 30 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
Electroencephalography (EEG)
时间窗: Until ICU discharge; to a maximum 21 days
R-Index -- phase synchrony
次要结局
- CAM-ICU(Until ICU discharge; to a maximum 21 days)
研究者
M. Elizabeth Wilcox
Assistant Professor
University of Toronto