Bioz.Com数字化无创血流动力学监测在老年呼吸困难中的应用

目的探讨无创血流动力学监测系统在老年呼吸困难鉴别诊断中的作用。方法对22例正常健康老年人及47例老年呼吸困难患者进行Bioz.Com数字化无创血流动力学监测。将呼吸困难者分为2组,其中心力衰竭(心衰)所致呼吸困难25例和非心衰所致呼吸困难22例。结果心衰所致呼吸困难心输出量/心脏指数(CO/CI)、每搏输出量/每搏指数(SV/SI)、加速度指数(ACI)、左室射血时间(LVET)、左室做功/做功指数(LCW/LCWI)、速度指数(VI)明显低于肺源性呼吸困难患者和健康对照组,差异均有统计学意义(P<0.01或P<0.05)。而体血管阻力/阻力指数(SVR/SVRI)、预射血期(PEP)、收缩时间比率(STR)则明显高于肺源性呼吸困难患者和健康对照组,差异均有统计学意义(P<0.01)。心衰所致呼吸困难患者心率(HR)、胸腔液体量水平(TFC)高于健康对照组,差异具有统计学意义(P<0.05),但与肺源性呼吸困难患者比较差异无统计学意义(P>0.05)。心衰所致呼吸困难患者收缩压(SBP)、平均动脉压(MAP)、舒张压(DBP)与肺源性呼吸困难患者和健康对照组比较差异无统计学意义(P>0.05)。结论Bioz. Com数字化无创血流动力学监测系统通过监测相关参数,为临床老年呼吸困难的鉴别及治疗提供可靠依据,值得推广。

Utility of Bioz.Com noninvasive hemadynamic monitor system in elderly patients with dyspnea

Objective To determine the utility of Bioz.Com noninvasive hemadynamic monitor system in diagnosis and initial treatment of elderly patients with dyspnea.Methods All hemodynamic parameters of elderly patients with dyspnea(n =47)and healthy controls(n =22)were monitored by Bioz. com noninvasive hemadynamic monitor system.Results Parameters cardiac output/cardiac index(CO/CI),strike volume/strike index(SV/SI),acceleration index(ACI),left ventricle ejection time(LVET),left cardiac work/left cardiac work index(LCW/LCWI),and velocity index(VI)of dyspnea induced by heart failure were significantly lower than the parameters of dyspnea induced by pneumonosis and healthy controls(P <0.01 or P <0.05).But parameters of systemic circulation peripheral vascular resistance/systemic circulation peripheral vascular resistance index(SVR/SVRI),pre-ejection period(PEP),systolic time rate(STR)of dyspnea induced by heart failure were significantly higher than the parameters of dyspnea induced by pneumonosis and healthy controls(P <0.01).Parameters heart rate(HR),thorax fluid capacity(TFC)of dyspnea induced by heart failure were significantly higher than the parameters of healthy controls(P <0.05).There was no statistical difference between dyspnea induced by heart failure and pneumonosis(P <0.05).There was no statistical difference of systolic blood pressure(SBP),mean arterial pressure(MAP)and diastolic blood pressure(DBP)among the three groups(P >0.05).Conclusions Bioz. Com noninvasive hemadynamic monitor system provides reliable evidence for clinical diagnosis and treatment for elderly patients with dyspnea.