Modifications of autonomic activity and baroreceptor response during tilt-induced vasovagal syncope

Chun An Cheng, Jiunn Tay Lee, Hung Wen Chiu

研究成果: 書貢獻/報告類型會議貢獻

1 引文 斯高帕斯(Scopus)

摘要

Vasovagal syncope (VVS) is diagnosed by medical history and confirmed by head-up tilt (HUT) test. In this study, we attempted to examine this controversy by evaluating heart rate variability and baroreceptor sensitivity in VVS during upright posture. The VVS subjects had lower total peripheral vascular resistance at baseline supine and HUT position. During HUT test, the VVS subjects had increased LF/HF ratio and decreased baroreceptor sensitivity. In conclusion, VVS subjects demonstrated vascular sympathetic dysfunction and postural cardiac sympathetic hyperactivity. The decreased baroreceptor sensitivity may explain in part the failure of the usual compensatory heart rate increase during orthostatic challenge.
原文英語
主出版物標題Computing in Cardiology
頁面943-946
頁數4
37
出版狀態已發佈 - 2010
事件Computing in Cardiology 2010, CinC 2010 - Belfast, 英国
持續時間: 九月 26 2010九月 29 2010

其他

其他Computing in Cardiology 2010, CinC 2010
國家英国
城市Belfast
期間9/26/109/29/10

ASJC Scopus subject areas

  • Computer Science Applications
  • Cardiology and Cardiovascular Medicine

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    Cheng, C. A., Lee, J. T., & Chiu, H. W. (2010). Modifications of autonomic activity and baroreceptor response during tilt-induced vasovagal syncope. 於 Computing in Cardiology (卷 37, 頁 943-946). [5738130]