【摘要】 应用超声脉冲多普勒装置,对正常人和肝炎后肝硬化门静脉高压症患者手术前后的血液动力学指标进行测定,探讨其发病机制、诊断标准及术式对血液动力学的影响。结果:(1) 肝炎后肝硬化门静脉高压症的血液动力学改变处于高循环状态,尤其是脾循环亢进是其重要发病机制之一。(2) 门静脉充血指数(C1)>0.1cm·s、脾静脉截面积>0.6cm和脾静脉血流量占门静脉血流量百分比(SVF/PVF)>50%可作为诊断门静脉高压症的血液动力学指标,其敏感度和准确度均在90%以上。(3) 断流术和分流术都能减轻门静脉高压症的高循环状态。尤其是分流术降压效果明显、对肝脏的血供影响较大。更多还原

【Abstract】 Hemodynamics was studied in normal volenteers and pre-and postoprative patients with post hepatitie cirrhosis complicated with portal hypertansion(PCPH) using pulsed doppler ultrasound device(PDUD).The results showed that(1).The be modynamic changes in patients with PCPH was in hyperdynamic circulatory state. This state was one of the pathogenic mechanism of PCPH and hyperdynamic splenic circulatory state was more important. (2) Congestion index (CI) of portal vein>0.1cm·s; Splenic vein area>0.6cm~2; SVF/PVF>50% was the hemodynamic diagnostic criterion of PCPH. (3) Both Portasystemie shunt and porta-azygous devascularization all can decrease the hypedynamic circulatory state of PCPH.更多还原