The Impact of Respiratory Events on the Autonomic Nervous System during Sleep
| Autor: | Shaoxiong Huang, Lin Sun, Xiangmin Zhang, Tingting Wang, Yuxi Luo, Jiuxing Liang |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Adult
Male medicine.medical_specialty Sympathetic nervous system Polysomnography 030204 cardiovascular system & hematology Autonomic Nervous System Arousal 03 medical and health sciences Young Adult 0302 clinical medicine Sleep Apnea Syndromes Heart Rate Internal medicine Heart rate Respiration Medicine Heart rate variability Humans Respiratory system Pathological business.industry General Medicine Middle Aged Autonomic nervous system medicine.anatomical_structure Cardiology Female Cardiology and Cardiovascular Medicine business Sleep 030217 neurology & neurosurgery |
| Zdroj: | International heart journal. 59(2) |
| ISSN: | 1349-3299 |
| Popis: | Sleep apnea hypopnea syndrome (SAHS) is an independent risk factor for cardiovascular diseases. However, the pathophysiology between them is not yet clear. This paper seeks to understand how respiratory events impact the cardiovascular system by heart rate variability. We compared the differences between successional pathological respiratory events (PR) and pure normal respiration (NR) during sleep. The transitions between normal and pathological respiration (TR) were also analyzed. Thirteen patients who suffered moderate or severe SAHS were enrolled in this study. The results demonstrate that the beat-to-beat interval (RR interval) mean value and sample entropy are significantly lower during PR than during NR. RR interval standard deviation, the power of very low frequency (VLF) and low frequency (LF), total power, and the low frequency/high frequency (LF/HF) ratio were significantly larger during PR than during NR. However, the high frequency (HF) power was not significantly different between normal and pathological respiration. Additionally, the trends during TR also supported these significant differences. The results indicate that during pathological respiration, as the heart rate and its volatility increase, the complexity of its rhythm decreases. We conclude that the energy of the autonomic nervous system rapidly increases during pathological respiration, especially at the beginning. The HF power does not significantly change to modulate the heart rhythm, but the activity of the sympathetic nervous system will significantly increase, resulting in the imbalance of the LF/HF ratio. In addition to these findings, this paper discusses the influence of arousal on these indices during TR. |
| Databáze: | OpenAIRE |
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