Electrocardiography and vital signs recorded in patients with subarachnoid hemorrhage

This dataset includes electrocardiography and vital signs recording in patients with subarachnoid hemorrhage during their stay in the intensive care unit. Participants in this clinical trial (NCT04557618) were randomized to receive either the transcutaneous auricular vagus nerve stimulation (taVNS) or Sham treatment. The goal of this study is to study the cardiovascular effects of taVNS in patients with subarachnoid hemorrhage., A 3-lead system was used for electrocardiograms (ECG). ECG signals, sampled at 500 Hz, and other vital signs, such as blood pressure, sampled at 1 Hz, were recorded from the Intellivue patient monitor (Philips®, Netherlands) using vitalDB software. We removed all personally identifiable information from the dataset, such as names and contact details. Please see reference 1 for a detailed description of the study protocol. Following randomization, enrolled patients underwent 20 minutes of either taVNS or sham stimulation twice daily during their stay in the ICU. During treatment periods, a portable transcutaneous electrical nerve stimulation (TENS) device (TENS 7000 Digital TENS Unit, Compass Health Brands, OH, USA) was connected to the patient’s left ear using two ear clips. For taVNS treatments, these ear clips were placed along the concha of the ear, while for sham treatments, the clips were placed along the earlobe to avoid stimulation of the auricular vagus nerve from tactile pressu..., , # Electrocardiography and vital signs recorded in patients with subarachnoid hemorrhage [https://doi.org/10.5061/dryad.rfj6q57kw](https://doi.org/10.5061/dryad.rfj6q57kw) ## Description of the data and file structure ### Files and variables #### File: df\_hrv\_sum.csv **Description:** This file includes heart rate variability and heart rate measured from 24-hour ECG recordings. To calculate cardiac metrics, we first applied a 0.5 Hz fifth-order high-pass Butterworth filter and a 60 Hz powerline filter on ECG data to reduce artifacts. We detected QRS complexes based on the steepness of the absolute gradient of the ECG signal using the Neurokit2 software package. R-peaks were detected as local maxima in the QRS complexes. P waves, T waves, and QRS complexes were delineated based on the wavelet transform of the ECG signals proposed by Martinez J. P. et al. ##### Variables * subj: anonymous subject id * treatment: 1 means active taVNS * research day: day 0 means the first day when t...本数据集收录了蛛网膜下腔出血（subarachnoid hemorrhage）患者在重症监护病房（intensive care unit, ICU）住院期间的心电图与生命体征记录。本临床试验（临床试验编号NCT04557618）的受试者被随机分为经皮耳迷走神经刺激（transcutaneous auricular vagus nerve stimulation, taVNS）组与假治疗组。本研究旨在探究taVNS对蛛网膜下腔出血患者的心血管效应。 本研究采用3导联系统采集心电图（electrocardiogram, ECG）。心电图信号以500 Hz的采样率采集，血压等其他生命体征以1 Hz采样率采集，数据通过vitalDB软件从Intellivue患者监护仪（飞利浦®，荷兰）获取。我们已移除数据集中所有个人可识别信息，例如姓名与联系方式。详细的研究方案请参见参考文献1。 受试者完成随机分组后，在ICU住院期间每日接受两次、每次20分钟的taVNS或假刺激治疗。治疗期间，便携式经皮神经电刺激（transcutaneous electrical nerve stimulation, TENS）设备（TENS 7000 Digital TENS Unit，Compass Health Brands，美国俄亥俄州）通过两个耳夹连接至患者左耳。对于taVNS治疗，耳夹放置于耳甲处；而假治疗时，耳夹置于耳垂以避免因触觉压力刺激耳迷走神经…… # 蛛网膜下腔出血患者心电图与生命体征记录 DOI: https://doi.org/10.5061/dryad.rfj6q57kw ## 数据与文件结构说明 ### 文件与变量 #### 文件：df_hrv_sum.csv **描述：** 该文件包含从24小时心电图记录中提取的心率变异性与心率数据。为计算心脏相关指标，我们首先对心电图数据施加0.5 Hz五阶巴特沃斯（Butterworth）高通滤波器与60 Hz工频滤波器以去除伪影。我们基于心电信号绝对梯度的陡度，使用Neurokit2软件包检测QRS波群。R波峰被识别为QRS波群中的局部最大值。P波、T波与QRS波群的划分基于Martinez J. P.等人提出的心电图信号小波变换（wavelet transform）方法。 ##### 变量： * subj：匿名受试者编号 * treatment：1代表接受活性taVNS治疗 * research day：第0天指接受治疗的首日……