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心室能量
相关语句
  ventricular energy
     Conclusion:Ventricular energy analysis by the P V loop can assess the cardiac function and reserve quantitatively.
     结论:利用P-V环对心室能量分析可对心功能及储备能力进行定量化评估。
短句来源
  相似匹配句对
     Ventricular dissociation
     心室分离
短句来源
     The Theory of Energy Value
     能量价值论
短句来源
     Tracking down the energy
     能量追踪
短句来源
     EFFECTS OF POLARIZED LIQUID CONTAINING MAGNESIUM AND & ENERGY MIXTURE ON VENTRICULAR LATE POTENTIALS
     含镁极化液加能量合剂对心室晚电位的影响
短句来源
     ③The remodeling of ventricular.
     ③心室重塑。
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Left area of the ventricular pressure-volume loop (P-V loop) represents the end-systolic energy (ESE).Total energy (TE) of blood in the ventricle consists of three parts: stroke work (SW), filling work (FW)and ESE. Energy efficiency (EE) is the ratio of SW to TE. The ventricular energies of 263 patients in 9 groups with various heart diseases were analysed by conventional ventricular cineangiography. The results showed that normal ventricle has optimal SW, minimal TE, ESE and maximal EE. The P-V loop shifted...

Left area of the ventricular pressure-volume loop (P-V loop) represents the end-systolic energy (ESE).Total energy (TE) of blood in the ventricle consists of three parts: stroke work (SW), filling work (FW)and ESE. Energy efficiency (EE) is the ratio of SW to TE. The ventricular energies of 263 patients in 9 groups with various heart diseases were analysed by conventional ventricular cineangiography. The results showed that normal ventricle has optimal SW, minimal TE, ESE and maximal EE. The P-V loop shifted to the right gradually with decrease of contractility, while TE and ESE increased and EE decreased with no change in SW. In cases with regurgitation and increase of afterload, SW, ESE and TE increased, indicating the presence of ineffective work. EE decreased with preload decrease. The heart function, heart reserve and compensatory limit can be quantitatively assessed by energy analysis presented in this paper. University Hospital; Saskatchewan University; Saskatoon; Canada

利用心室压力─容积环对心脏作功及能量进行探讨。心室内血液的总能量包括搏出功、收缩末势能和充盈功3部分。心室的能量效率为搏出功与总能量之比。分析了9组263例各种心脏病患者的心室能量,提出了心脏贮备能力及代偿极限的定量化诊断方法。

Objective:Analysis of the left ventricular pressure volume loop (P V loop) to assess the ventricular function quantitatively. Methods:The P V loops of 29 normal individuals and 115 coronary heart disease patients with various heart functions by NYHA criteria were constructed by cineangiographic data and the ventricular energies were analysed based on the concept that the left area of the P V loop is the end systolic potential energy of the ventricle.The total ventricular energy is the sum of the end...

Objective:Analysis of the left ventricular pressure volume loop (P V loop) to assess the ventricular function quantitatively. Methods:The P V loops of 29 normal individuals and 115 coronary heart disease patients with various heart functions by NYHA criteria were constructed by cineangiographic data and the ventricular energies were analysed based on the concept that the left area of the P V loop is the end systolic potential energy of the ventricle.The total ventricular energy is the sum of the end systolic potential energy,stroke work and filling energy,and the energy efficiency is the ratio of stroke work to total energy. Results:The normal ventricle had optimal stroke work,minimal total energy and end systolic potential energy with maximal energy efficiency.Following heart function deterioration,the ventricular total energy and end systolic potential energy were increased,stroke work kept stable and energy efficiency was decreased. Conclusion:Ventricular energy analysis by the P V loop can assess the cardiac function and reserve quantitatively.

目的:利用左心室压力容积环(P-V环)对心功能进行定量化分析。方法:本文提出了P-V环左侧的面积为心室收缩末势能的概念。心室总能量为收缩末势能,搏出功(strokework)与充盈功之和,其能量效率为搏出功与总能量之比。利用心室造影资料绘制了29例正常人和115例冠心病患者按NYHA分级的各种心功能心室P-V环,并分析了心室能量指标。结果:正常心室有最适搏出功,总能量和收缩末势能最低而能量效率最高。随着心功能减退,总能量和收缩末势能增大而搏出功保持稳定,能量效率下降。结论:利用P-V环对心室能量分析可对心功能及储备能力进行定量化评估。

Objective To evaluate the left ventricular function in patients with different extents of coronary stenosis by the left ventricular pressure volume loop Methods In 65 patients who were undergoing coronary angiography and left ventriculography examinations, materials of clinical and cardiac catheter examinations were collected In right anterior oblique 30 degrees the left ventriculography was progressed The pressure curves of the left ventricle and the aorta were recorded continuously and volumes of...

Objective To evaluate the left ventricular function in patients with different extents of coronary stenosis by the left ventricular pressure volume loop Methods In 65 patients who were undergoing coronary angiography and left ventriculography examinations, materials of clinical and cardiac catheter examinations were collected In right anterior oblique 30 degrees the left ventriculography was progressed The pressure curves of the left ventricle and the aorta were recorded continuously and volumes of the left ventricles were measured with the dot tracing method Pressure volume loop was set up and ventricular energy indexes embodied by the pressure volume loop were measured and calculated Results In normal group, pressure volume loop was located in the left and lower portion of the coordinate system Along with the levels of the coronary stenosis becoming more severe, pressure volume loops moved to the right and upper portion of the coordinate system Little changes occurred in ejection fraction except that there was a decreasing in patients with lesions of three branches; Stroke work showed no obvious changes; Filling energy became larger; Total energy increased obviously in both groups with lesions of double branches and three branches; End systolic energy increased gradually while energy efficiency decreased gradually Conclusion The ventricular pressure volume loop can be obtained in routine ventriculography which can reflect many indexes of ventricular function quantitatively The ventricular energy indexes change correspondingly with coronary artery lesions and may be useful to assess ventricular function in patients with different levels of coronary stenosis

目的 利用左室压力 容积环评价不同冠脉病变程度冠心病病人的左心室功能。方法 收集行冠脉及左室造影检查患者的临床与心导管检查资料共 6 5例 ,取右前斜位 30 (行左室造影 ,连续记录左心室与主动脉压力曲线 ,描点法测量左室容积 ,绘制心室压力 容积环 ,测量并计算压力 容积环所体现的各项心室能量指标。结果 正常心室压力 容积环位于坐标轴左下方 ,随冠脉狭窄程度加重 ,典型压力 容积环逐渐向右上方移位。射血分数在单、双支病变组无明显变化 ,在三支病变组降低 ;搏出功无明显变化 ;充盈能增大 ;心室总能量在双、三支病变组明显增大 ;收缩末势能逐渐增大 ;能量效率逐渐降低。结论 压力 容积环可在常规心室造影过程中获取 ,它能定量直观地反映多项心室功能指标。各心室能量指标在冠状动脉病变时发生相应的变化 ,可评价冠脉不同病变程度对心功能的影响

 
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