血管内多普勒超声对Budd-Chiari综合征介入治疗前后血流动力学变化的评价

Hemodynamic Changes of Budd-Chiari Syndrome before and after PTA Detected by Intravascular Doppler Ultrasound

目的 :检测Budd Chiari综合征 (BCS)患者血流动力学的变化及对BCS患者PTA术后即刻的效果进行评价。材料和方法 :使用血管内多普勒导丝对 2 7例BCS患者下腔静脉 /肝静脉 (IVC/HV)介入治疗 (PTA)前后血流速度、血流量和压力的变化进行测定及比较。结果 :IVC和HV病变远心端PTA后较PTA前的平均峰值流速、最大峰值流速及血流量显著增加 ,而压力显著下降。结论 :PTA有利于BCS患者IVC/HV血流动力学的恢复 ;血流动力学指标可作为BCS在PTA后IVC/HV再通的依据之一。血流速度的变化可以作为判定PTA治疗终点的可靠指标之一。

Purpose: To investigate the hemodynamic changes after and the effects of percutaneous transluminal angioplasty (PTA) in Budd-Chiari syndrome(BCS). Materials and Methods: With Doppler guidewire, blood flow velocity , blood flow volume and pressure in inferior vena cava/ right hepatic vein (IVC/RHV) of 27 BCS patients were measured. These hemodynamic parameters were compared before and after PTA. Results: After PTA, average peak velocity (APV) ,maximum peak velocity (MPV) and blood flow volume at distal end of IVC and RHV increased prominently; but pressure decreased. Conclusion: PTA was effective in restoring hemodynamics of BCS. The changes of blood flow velocity can be used as an ending index of PTA.