老年单纯收缩期高血压患者左心收缩功能的评价

Assessment of Left Ventricular Systolic function in Elderly Isolated Systolic Hypertension

摘要: 目的　研究探讨老年单纯收缩期高血压 (EISH)血流动力学改变。方法　应用彩色超声多普勒检测 30例EISH患者及 2 8例老年健康对照组左心收缩功能及相关血流动力学参数。结果　EISH组左心收缩功能指标 :SV、CO、EF、CI明显高于对照组 ,直线相关分析显示EISH组脉压差水平与上述各参数呈显著正相关 ,r值分别为 0 .43,0 .5 6 ,0 .46 ,0 .45 ,同时研究组心率水平明显高于对照组 (P <0 0 5 )。结论　EISH存在显著的血流动力学异常 ,主要表现在左室收缩功能亢进 ,长期处于高心排血量及高负荷状态。

Abstract: Aim\ To explore the hemodynamic change of elderly isolated hypertension（EISH）. Methods\ Color doppler ultrasonography were applied to examine thirty EISH patients and twenty eight elderly healthy subjects. The left ventricular systolic function as well as hemodynamic parameters were measured. Results\ The indices of left ventricular systolic function in EISH group such as SV,CO,EF and CI were obviously higher than those of control group（ P＜ 0 05）,Linear relevant analysis show that pulse pressure was remarkable related to SV,CO,EF and CI in EISH group,with r value 0.43,0.56,0.46,0.45 respectively. Conclusion\ EISH patients apparently had ventricular systolic dysfunction and hemodynamic abnormality. Pulse pressure may be associated with development of sysytolic dysfunction.