心率减速力的临床研究现状

Clinical research status of deceleration capacity

心率减速力是评估自主神经功能的非侵入性测量手段,是迷走神经张力的定量检测指标.与传统的心率变异性指标相比,心率减速力具有高精确度和稳定性,在心血管、内分泌、妇产科、儿科等领域得到了越来越广泛的临床应用.心率减速力可用于冠状动脉粥样硬化性心脏病及心肌梗死患者猝死风险评估;评价慢性心力衰竭患者的预后及死亡风险;探索血管迷走性晕厥的发病机制;评估2型糖尿病患者自主神经功能,预测其心血管事件发生的风险;检测患有妊娠期高血压的孕妇及小于孕周胎儿的生理状况等.心率减速力在临床各个领域的应用得到了广泛认可.该文将心率减速力在临床上对各类疾病诊断及预后判断的意义、价值及研究现状进行综述.

Deceleration capacity (DC) is a noninvasive measurement of autonomic nervous function.It is a quantitative assessment of vagal tone.Compared with the conventional measurements of heart rate variability (HRV),deceleration capacity has higher accuracy and stability.It is widely used in cardiology,endocrinology,obstetrics and gynecology,pediatrics and other fields.Deceleration capacity can be used to assess the risk of sudden death in patients with coronary heart disease and myocardial infarction,to evaluate the prognosis and risk of death in patients with chronic heart failure,to explore the pathogenesis of vasovagal syncope,to assess the autonomic nervous function in patients with type 2 diabetes mellitus,to predict the occurrence of cardiovascular events,and to detect the physiological condition of pregnancies complicated by hypertensive disorders and immature fetuses.The value of heart rate deceleration capacity in clinical application has been widely recognized.This paper aims to summarize the significance,value and research status of deceleration capacity in the diagnosis and prognosis of various diseases.