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首页> 外文期刊>Acute and critical care. >Continuous heart rate variability and electroencephalography monitoring in severe acute brain injury: a preliminary study
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Continuous heart rate variability and electroencephalography monitoring in severe acute brain injury: a preliminary study

机译：严重急性脑损伤中的连续心率变异性和脑电图监测：初步研究

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Background Decreases in heart rate variability have been shown to be associated with poor outcomes in severe acute brain injury. However, it is unknown whether the changes in heart rate variability precede neurological deterioration in such patients. We explored the changes in heart rate variability measured by electrocardiography in patients who had neurological deterioration following severe acute brain injury, and examined the relationship between heart rate variability and electroencephalography parameters. Methods Retrospective analysis of 25 patients who manifested neurological deterioration after severe acute brain injury and underwent simultaneous electroencephalography plus electrocardiography monitoring. Results Eighteen electroencephalography channels and one simultaneously recorded electrocardiography channel were segmented into epochs of 120-second duration and processed to compute 10 heart rate variability parameters and three quantitative electroencephalography parameters. Raw electroencephalography of the epochs was also assessed by standardized visual interpretation and categorized based on their background abnormalities and ictalinterictal continuum patterns. The heart rate variability and electroencephalography parameters showed consistent changes in the 2-day period before neurological deterioration commenced. Remarkably, the suppression ratio and background abnormality of the electroencephalography parameters had significant reverse correlations with all heart rate variability parameters. Conclusions We observed a significantly progressive decline in heart rate variability from the day before the neurological deterioration events in patients with severe acute brain injury were first observed.
机译：背景技术心率变异性降低已显示出与严重急性脑损伤中的差的结果相关。然而，尚不清楚是否在这些患者的神经损失方面是心率变异的变化。我们探讨了在严重急性脑损伤后具有神经衰弱的患者的心电图变异性的变化，并检查了心率变异性和脑电图参数之间的关系。方法回顾性分析，25例急性脑损伤术后神经衰退的25例患者，经历脑电图脑电图监测。结果88个脑电图通道和一个同时记录的心电图通道被分段为120秒持续时间的时期，并加工以计算10个心率变化参数和三种定量脑电图参数。通过标准化的视觉解释还通过标准化的视觉解释评估了时期的原始脑电图，并根据其背景异常和IDTal interictul连续体模式进行分类。心率变异性和脑电图参数显示出在脑神经劣化开始之前的2天内的一致变化。值得注意的是，脑电图参数的抑制比和背景异常与所有心率变化参数具有显着的反向相关性。结论我们在首次观察到重新观察到严重急性脑损伤患者神经系统恶化事件前一天的心率变异性显着下降。

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