Overnight Polysomnographic Records of Patients with Chronic Disorders of Consciousness, Part 2

Dataset contains second part of 40 (25-40) PSG recordings of patients with chronic DOC obtained overnight, from the afternoon or evening of the previous day to the morning of the following day. The mean duration of recordings is 14.7 hours (SD = 3.8 hours).

The group was made up of in-patients, admitted to Federal Research and Clinical Center of Intensive Care Medicine and Rehabilitology throughout a period of 3 years. Inclusion criteria involved persistent or permanent DOC due to severe acquired brain damage of different etiology, such as traumatic brain injury (TBI), anoxic brain injury (ABI), vascular lesions (VL), and inflammatory diseases (ID). Time since injury substituted less than a year, but not less than one month at the study enrollment. Exclusion criteria comprised age over 70 years old, disability associated with the central nervous system that preceded the insult, epilepsy, myoclonus, hemodynamic instability, the need of mechanical ventilation, which can interfere with sleep. None of the patients received tranquilizers, barbiturates, antipsychotics, or antidepressants.

Data were acquired with SOMNOscreen™ plus PSG system. For EEG acquisition six Ag/AgCl electrodes were placed on the patients’ head, corresponding to the standard 10/20 system [53] in F3, F4, C3, C4, O1, and O2 positions. Additional reference was provided with earlobe electrodes, placed in A1 and A2 positions. Two electro-oculogram (EOG) channels were added in cross-montage, two bipolar EMG channels were used to record deltoid activity, and in some cases one bipolar electrocardiographic (ECG) derivation was supplemented.

All files are in .edf format.

Demographic and clinical information on all patients is available in Supplementary Data of Overnight Polysomnographic Records of Patients with Chronic Disorders of Consciousness, Part 1 (https://data.mendeley.com/datasets/7byy6n8fwr/2).

When using the data please cite:
Nekrasova, Julia; Kanarskii, Mikhail; Yankevich, Dmitriy (2020), “Overnight Polysomnographic Records of Patients with Chronic Disorders of Consciousness, Part 2”, Mendeley Data, V1, doi: 10.17632/cz4mp794z7.1

本数据集包含40例慢性意识障碍（Disorders of Consciousness, DOC）患者多导睡眠图（Polysomnographic, PSG）记录的第二部分（第25至40例），所有记录均为夜间睡眠监测数据，采集时段覆盖前一日下午或晚间至次日清晨。单段记录的平均时长为14.7小时（标准差SD=3.8小时）。

本研究队列均为住院患者，于3年间收入重症医学与康复学联邦研究临床中心。纳入标准为：因不同病因引发的严重获得性脑损伤导致的持续性或永久性意识障碍，病因包括创伤性脑损伤（Traumatic Brain Injury, TBI）、缺氧性脑损伤（Anoxic Brain Injury, ABI）、血管性病变（Vascular Lesions, VL）及炎症性疾病（Inflammatory Diseases, ID）；患者入组时距脑损伤发生时间不足1年，但不少于1个月。排除标准包括：年龄超过70岁、脑损伤前已存在中枢神经系统残疾、癫痫、肌阵挛、血流动力学不稳定、需行机械通气（上述情况均可能干扰睡眠监测）。所有患者均未使用镇静剂、巴比妥类药物、抗精神病药或抗抑郁药。

数据采用SOMNOscreen™ plus多导睡眠图系统采集。脑电图（Electroencephalogram, EEG）采集使用6枚Ag/AgCl电极，按照标准10/20系统放置于患者头部，对应点位为F3、F4、C3、C4、O1及O2（参考文献[53]）；额外以放置于A1、A2点位的耳垂电极作为参考电极。采用交叉导联模式设置2眼电图（Electrooculogram, EOG）通道，使用2双极肌电图（Electromyogram, EMG）通道记录三角肌活动，部分病例额外补充1双极心电图（Electrocardiogram, ECG）导联。

所有数据文件均采用.edf格式存储。

所有患者的人口学与临床信息可参见《慢性意识障碍患者夜间多导睡眠图记录 第一部分》的补充数据（https://data.mendeley.com/datasets/7byy6n8fwr/2）。

若使用本数据集，请引用如下文献：
Nekrasova, Julia; Kanarskii, Mikhail; Yankevich, Dmitriy (2020), 《慢性意识障碍患者夜间多导睡眠图记录 第二部分》, Mendeley Data, V1, doi: 10.17632/cz4mp794z7.1