The study was focused on heart rate(HR) variation of sinus rhythm before 5 minutes attacking, relationship between premature atrial contraction, coupling interval and PAF episodes.

研究PAF发作与窦性心室率、前5分钟窦性心律的心率变异、房性期前收缩及其配对间期的关系。

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Objective To study the effects of nitric oxide(NO) in cardioinhibtory sites within the nucleus ambiguous(NA) on heart rate(HR) and heart rate variability(HRV) in anaesthetized rats.

目的研究大鼠疑核（NA）心抑制区的一氧化氮（NO）对心率（HR）和心率变异性（HRV）的影响。

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BIS, mean artery pressure (MAP), heart rate (HR), plasma concentration of propofol, and the total induction dose of propofol when BIS reduced to 50 were recorded.

记录各时间点的BIS、平均动脉压(map)、心率(HR)、丙泊酚血药浓度以及BIS降至50时的丙泊酚麻醉诱导总量。

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