| 心室压力瞬时加速度的测定及其意义 |
| |
| 引用本文： | 呙中茂,黄定洪.心室压力瞬时加速度的测定及其意义[J].生理学报,1989,41(1):102-110. |
| |
| 作者姓名： | 呙中茂 黄定洪 |
| |
| 作者单位： | 湖北医学院生理教研室
(呙中茂，黄定洪)，湖北医学院生理教研室(杨红) |
| |
| 摘 要： | 本工作对国产SJ-42型四道生理记录仪进行改进,增加了记录压力二阶微分曲线的功能。经比较研究家兔左心室压力一阶微分与二阶微分指标后发现,(d~2p/dt~2)max对心肌变力作用的敏感性比(dp/dt)max高出1/3左右,两项指标对心脏前后负荷和心率均具有一定的依赖性,但两者间无明显差异,提示用心室压力瞬时加速度指标评价心脏收缩性能比用压力瞬时速率指标更为灵敏可靠。
|
| 关 键 词： | 心室压力 加速度 变力性 负荷 心率 |
MEASUREMENT FOR INSTANTANEOUS ACCELERATION OF VENTRICULAR PRESSURE AND ITS SIGNIFICANT |
| |
| GUO ZHONG-MAO,HANG DING-HONG AND YANG HONG.MEASUREMENT FOR INSTANTANEOUS ACCELERATION OF VENTRICULAR PRESSURE AND ITS SIGNIFICANT[J].Acta Physiologica Sinica,1989,41(1):102-110. |
| |
| Authors: | GUO ZHONG-MAO HANG DING-HONG AND YANG HONG |
| |
| Institution: | GUO ZHONG-MAO,HANG DING-HONG AND YANG HONG Department of Physiology,Hubei Medical College |
| |
| Abstract: | The indices of the first and second derivatives of the left ventricular pressurewere compared in terms of their inotropic sensitivity and preload,afte rload and heartrate dependence in 14 rabbits.In comparison with(dp/dt)max,(d~2p/d~2)maxis more sensitive to inotropic stimulation.Both indices are increased with increasingpreload,afterload and heart rate(HR),but the difference in their dependenceson load and HR is not statistically signi ficant.The results suggest that(d~2p/dt~2)maxis a better index of ventricular performance than(dp/dt)max. |
| |
| Keywords: | ventricular pressute acceleration inotropic load dependence heart rate |
| 本文献已被 CNKI 维普 等数据库收录！ |
