首页> 外文期刊>Romanian Journal of Biophysics >NONLINEAR DYNAMICS METHODS FOR ASSESSING HEART RATE VARIABILITY IN PATIENTS WITH RECENT MYOCARDIAL INFARCTION
【24h】

NONLINEAR DYNAMICS METHODS FOR ASSESSING HEART RATE VARIABILITY IN PATIENTS WITH RECENT MYOCARDIAL INFARCTION

机译:评估近期心肌梗死患者心率变异性的非线性动力学方法

获取原文
           

摘要

Heart rate variability (HRV) is defined by the fluctuating time between normal sinus beats (RR intervals) and indicates modulation of the heart rate by the autonomic nervous system. Decreased variability parameters have been studied as markers of increased pathology and a predictor of morbidity and mortality in multiple medical disciplines. The aim of the study was to assess HRV by nonlinear dynamics parameters (Poincaré plot and entropy constants) in patients with recent myocardial infarction (MI). We analyzed two groups of patients: a test group of 12 patients with recent myocardial infarction and a control group of 12 healthy subjects. For each patient, a 7 minutes ECG signal was recorded and the nonlinear dynamics parameters were calculated. Strong visual differences were found between Poincaré plots of healthy subjects and MI patients. Also, most calculated nonlinear dynamics parameters were significantly lower in MI patients. In conclusion, MI affects nonlinear dynamics parameters, revealing a statistically significant decrease in HRV. Also, visual modifications of the Poincaré plot were found.
机译:心率变异性(HRV)由正常窦性心跳之间的波动时间(RR间隔)定义,并指示自主神经系统对心率的调节。可变性参数降低已被研究为多种医学学科中病理学增加的标志物以及发病率和死亡率的预测指标。该研究的目的是通过非线性动力学参数(庞加莱图和熵常数)评估近期心肌梗塞(MI)患者的HRV。我们分析了两组患者:一个测试组12名近期有心肌梗塞的患者和一个对照组12名健康受试者。对于每位患者,记录7分钟的ECG信号并计算非线性动力学参数。在健康受试者和MI患者的庞加莱图上发现了强烈的视觉差异。而且,大多数计算出的非线性动力学参数在心梗患者中明显较低。总之,MI影响非线性动力学参数,显示HRV的统计显着下降。此外,发现了庞加莱图的视觉修改。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号