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目的:为间接判定主动脉瓣反流(AR)程度寻找新方法。方法:超声观察AR患者和健康人颈动脉频谱形态;计算直径变化率;分析血流动力学参数。结果:轻、中、重度AR组出现重搏波的概率分别为66%、83%、88%。中度AR组有3例、重度AR组有4例舒张期血流达基线。39%重度AR组患者舒张期血流反向。AR组与对照组相比,EDV下降,S/D、PI和RI增高,直径变化率增高。结论:颈动脉频谱形态和血流动力学变化可提示中重度AR。
Objective: To find a new method for indirectly judging the degree of aortic regurgitation (AR). Methods: The spectrum of carotid artery in AR patients and healthy people was observed by ultrasound. The rate of change of diameter was calculated. The hemodynamic parameters were analyzed. Results: The probability of occurrence of DWP in mild, moderate and severe AR patients was 66%, 83% and 88% respectively. There were 3 cases in moderate AR group and 4 cases in severe AR group. Diastolic blood flow reached baseline. Diastolic blood flow was reversed in 39% of severe AR patients. Compared with the control group, EDV decreased, S / D, PI and RI increased and the rate of change of diameter increased. Conclusion: The carotid artery spectrum morphology and hemodynamic changes may indicate moderate and severe AR.