压力反射在血液循环调节中占重要地位。可根据血压波动引起的窦房结频率的改变对压力反射敏感性(BRS)进行定量分析。BRS 主要反映迷走反射活性的大小。鉴于心性猝死与自主神经系统的关系,BRS 测定有助于评价自主神经张力,因此 BRS 用评价心脏患者猝死的危险性。血压发生变化时,压力感受器通过植物神经介导窦性心率改变,称之为压力反射,人们籍此来检查迷走 Stress reflex plays an important role in the regulation of blood circulation. Baroreflex sensitivity (BRS) can be quantified based on changes in sinus node frequency caused by fluctuations in blood pressure. BRS mainly reflects the size of vagal reflex activity. Given the relationship between sudden cardiac death and the autonomic nervous system, the BRS assay can be useful for evaluating autonomic nervous tone and is therefore used to assess the risk of sudden cardiac death in BRS. Changes in blood pressure, baroreceptor sinusoidal heart rate changes mediated by the autonomic nerve, called pressure reflex, people take this to check the vagina