数字化无创血液动力学监测系统在老年原发性高血压患者中的应用

Utility of noninvasive hemadynamic monitor system in elderly patients with essential hypertension

目的:应用Bioz.Com数字化无创血液动力学监测系统,检测不同脉压水平的老年原发性高血压患者的血液动力学状态,为临床治疗提供帮助。方法:选取32例无高血压的老年人为健康对照组(A组);选取61例老年原发性高血压患者为高血压组(B组)。B组又依据脉压水平分2组:B1组(脉压<70mmHg,31例);B2组(脉压≥70mmHg,30例);应用Bioz.Com系统检测并比较不同组患者的血液动力学参数。结果:(1)B1组与A组相比,总动脉顺应性指数(TACI)明显下降,全身血管阻力指数(SVRI)明显升高(P均<0.05);(2)B2组与A组相比,除以上两项外,心脏指数(CI)、每搏量指数(SI)、心肌加速指数(ACI)明显下降,收缩时间比率(STR)明显升高(P均<0.05),左室射血时间(LVET)缩短亦较明显,但达到统计学标准;(3)B2组与B1组相比,TACI、ACI明显下降,SVRI、STR明显升高(P均<0.05)。结论:老年原发性高血压患者中,脉压明显升高者的血液动力学改变更加显著,更易引起心肌损伤。

Objective： To evaluate hemadynamic characteristics of essential hypertension patients with different pulse pressure by Bioz. Com noninvasive hemadynamic monitor system. Methods： All subjects were divided into three groups according to the blood pressure and pulse pressure. Hemadynamic parameters were measured and compared among lifferent groups. Results： （1） Compared with group A, patients in group B1 had a lower arterial compliance index （TACI） and a higher systemic vascular resistance index （SVRI） （P〈0.05 all） ; （2） Compared with group A, patients in group B2 had a lower TACI, cardiac index （CI）, stroke index （SI）, acceleration index （ACI） and a higher SVRI, systolic time rate （STR） （P〈0.05 all） ; （3） Compared with group B1, patients in group B2 had a lower TACI, ACI and a higher SVRI, STR （P〈0.05 all）. Conclusion： Patients who had a higher pulse pressure often have more significant haemodynamic changes and cardiac muscular injury.