心肌收缩

旁道所在节段的心肌收缩速度高于对照组（P＜0.05）。

The bypass tract myocardial contraction velocity was much higher than that of control group ( P < 0.05 ) .

心肌收缩蛋白质的研究（二）心肌损害动物模型心肌肌球蛋白ATP酶的变化特点及意义

Proteins in myocardial Contraction : ⅱ . The significance of the Change in myosin ATPase activity of cardiac muscle in animal model of experimental myocardial injury

小鼠柯萨奇B3病毒性心肌炎急性期心肌收缩力的改变及芪芩号对其影响

The alteration of myocardial contractility in the acute phase of Coxsackievirus B_3 viral myocarditis in mice and the effect of Qiqin ⅰ on it

实验结果提示：低氧时Mb表达增加、cAMP和心肌收缩频率下降可能是对低氧的适应性改变，而Mb表达可能由胞内钙与cAMP参与。

The increase of Mb expression requires the participation of intracellular calcium and cAMP .

目的：观察人参四逆汤化合物H（H）对成年豚鼠离体心的心肌收缩性能和心室肌细胞动作电位的影响。

Objective To investigate the effects of chemical H of Renshen Sini Tang on myocardium contraction and action potentials of isolated working heart in adult guinea-pig .

小鼠心肌收缩蛋白、肌浆网ATP酶的增龄性变化及游泳训练对其的影响

Changes in Contractile Protein , Sarcoplasmic Reticulum ATPase in Mice Cardiac Muscle with Aging and Effects of Swimming

猫烫伤休克早期血浆ET-1含量和心肌收缩性的变化

Dynamic changes of plasma ET 1 content and myocardial contractility during early stage of burn shock

目的应用磁共振（MR）白血技术评价肥厚型心肌病（HCM）局部心肌收缩功能。

Objective To evaluate the regional myocardium systolic function in hypertrophic cardiomyopathy ( HCM ) by MR bright blood techniques .

作者观察12只健康狗颅内压（ICP）升高对心肌收缩性的影响.用硬脑膜外套囊法使ICP阶梯升高，分别升至6.7,13.3和20.0kPa。

The effect of elevated intracranial pressure ( ICP ) on cardiac contractility was studied in 12 dogs .

STI可评价甲亢患者局部心肌收缩功能。

STI can evaluate regional myocardial systolic function in patients with hyperthyroidism .

结论：TDI可以作为起搏后早期评价患者节段心肌收缩运动的无创指标。

Conclusion : TDI is a noninvasive method to evaluate the regional myocardium contraction after recent pacing .

结论Car具有较广泛的心血管效应，除通过扩张外周阻力血管降低血压外，尚具有降低心率、抑制心肌收缩性能的作用；

CONCLUSION Car has many effects on the cardiovascular system , besides the fallen MAP induced by the TPR reduction , Car can also decrease the HR and inhibit the contraction ability of the heart .

以EF斜率等表的心脏舒张功能高血压不同左室构型患者损害不同，舒张功能的改变与心肌收缩性的损害成正相关。

The damage of diastolic function showed as EF slope was strongly correlated with the decreased myocardial contractility .

心律影响心肌收缩性，其生理性最大缩短速度（Vpm）和心电图R－R间期呈线性相关。

Changes of heart rate affected the myocardial contractility . Physiological maximal shortening velocity ( Vpm ) was correlated with ECG R-R duration .

传统的正性肌力药物&儿茶酚胺类、磷酸二酯酶抑制剂、洋地黄制剂均通过增加细胞内cAMP和Ca2+浓度来提高心肌收缩力。

Common positive inotropic drugs & catecholamines , phosphodiesterase - ⅲ inhibitors and digoxin increased intracellular cAMP of Ca 2 + to enhance the contractility of myocardium .

心力衰竭（HeartFailure，简称HF）是人类健康的最大威胁疾病之一，它的主要特征是心肌收缩力减小，心输出量降低。

Heart failure ( HF ) has emerged as one of the largest threats to the public health , which is a primary cardiac disease characterized by decreased myocardial contractility and reduced cardiac output .

结论LVMI轻度增加时，心肌收缩功能是后负荷依赖性的；

Conclusion LV systolic function was afterload dependent in patients with mild LVMI increase .

±dp／dt降低提示异丙酚与等效剂量硫贲妥钠对心肌收缩性有相同程度的抑制作用。

The decrease in ± dp / dt indicated that propofol and equivalent dose of thiopental caused similar depression on myocardial contractility .

VVI技术可准确评价CHF患者左室心肌收缩的同步性。

VVI is a useful modality to evaluate the systolic synchrony of the LV in patients with CHF .

还有抗心律失常、增强心肌收缩力、抗心肌缺氧、抗炎作用，以及能升高大鼠血清IgG水平。

The granules are also good for anti inflammation , anti myocardial ischemia , anti arrhythmia , as well as for strengthening myocardiac contraction and increasing the serum IgG level .

目的应用应变（S）和应变率成像（SRI）技术评价冠心病（CAD）左室纵向心肌收缩舒张时的应变特点。

Objective To evaluate the deformation features of left ventricular longitudinal myocardial contraction and diastole in coronary artery disease using the strain ( S ) and strain rate imaging ( SRI ) .

微量注射TRH到侧脑室对心肌收缩时间间期（STI）无明显影响。

Microinjection of TRH into the left lateral ventricle produced no effect on the cardiac systolic time intervals ( STI ) .

目的：采用应力及应变率成像（SRI）技术定量评价不同容量负荷状态下左室心肌收缩性能的变化规律，为临床合理选择手术适应证提供客观依据。

Objective : The aim of this study was to evaluate the effect of volume overload on left ventricular myocardial contractility using strain and strain rate imaging .

结果：4只LCX完全闭塞，5只狭窄大于75%，心肌收缩及舒张功能明显下降。

Result : It was found that total occlusion in 4 and stenosis > 75 % in 5 pigs .

目的：评估冠心病缺血节段心肌收缩功能的异常，探讨QTVI技术对冠心病不同节段心肌收缩运动失同步化进行定量评估的临床应用价值。

Objective : To evaluate the Ischemia-related Regional Myocardial Asynchrony in systolic using quantitative tissue velocity imaging .

结论PWDTI能准确评价多巴酚丁胺负荷试验中左室长轴局部心肌收缩功能，从而准确无创检测冠心病缺血心肌。

Conclusions PW DTI combined with high dose DSE can correctly evaluate left ventricular regional systolic function of long axis and detect ischemic myocardium .

结论Ana使离体大鼠心肌收缩力降低，心率减慢，表现出负性肌力和负性频率作用；

Conclusion Ana was shown to decrease the myocardial contractility and slow down the heart rate , denoting negative inotropic as well as negative chronotropic action .

目的：对比组织速度曲线与位移曲线对AMI犬左室局域心肌收缩功能评价的优劣性。

Objective : The goals of this study were to characterize the regional systolic wall motion features during left ventricular systolic time in dogs with AMI by comparison velocity curve and displacement curve .

强心苷（Cardiotonicsteroid，Cs）用于治疗慢性充血性心力衰竭（Congestiveheartfailure，CHF）已有200多年历史，但其加强心肌收缩力的作用机制却一直是人们争论的焦点。

Cardiotonic steroid ( Cs ) had been used for the congestive heart failure ( CHF ) for more than 200 years . But the mechanism of its positive inotropic effect is still controversial .

结论：XT通过阻滞豚鼠左房肌的电压依赖性和受体调控性钙通道而发挥抑制心肌收缩力的作用。

Conclusion : XT blocked not only the voltage dependent calcium channel , but also the receptor operated calcium channel in the isolated guinea pig atria .