颈动脉超声评价室性期前收缩血流参数变化的临床价值

Clinical value of hemodynamic parameters' variation evaluation for premature ventricular contractions by carotid artery ultrasound

目的应用超声观测室性期前收缩患者颈动脉血流参数的变化情况,探讨颈动脉超声评价室性期前收缩血流参数变化的临床价值。方法选取我院心电图检查发现有室性期前收缩的患者52例,应用颈动脉超声检测室性期前收缩发生前、发生时及发生后颈动脉的收缩期峰值流速、舒张末期流速、阻力指数、搏动指数、峰值流速与舒张末期流速比等血流参数,结果进行比较分析。结果室性期前收缩发生前、发生时及发生后,患者颈动脉收缩期峰值流速、舒张末期流速、阻力指数、搏动指数均发生变化,差异均有统计学意义(F=6.195、3.758、3.937、4.002,均P<0.05),但峰值流速与舒张末期流速比变化不明显,差异无统计学意义。结论应用颈动脉超声可对室性期前收缩时的血流参数变化进行评估。

Objective To observe the parameters changes of the carotid artery in patients with premature ventricularcontractions by ultrasound,and to explore its clinical value Methods Fifty-two patients with premature ventricular contractions confirmed by electrocardiography were enrolled in our hospital,then the peak systolic velocity,the end diastolic velocity,theresistive index,the pulsatility index and the S/D were measured by carotid artery ultrasound before,when and after theoccurrence of the premature ventricular contractions,the results as compared.Results The peak systolic velocity,the enddiastolic velocity,the resistive index,the pulsatility index were changed before,when and after the occurrence of the prematureventricular contractions.There was significant difference of the indexes except S/D(F=6.195、3.758、3.937 and 4.002,all P<0.05).Conclusion The carotid artery ultrasound examination can evaluate the changes of hemodynamic parameters when thepremature ventricular contractions take place.