长P-R间期患者的心脏功能评价

The Study on the Cardiac Function by Ultrasoundcardiogram for Long P-R Intenval Patients.

目的评价长P-R间期患者的心脏功能状态。方法筛选28例长P-R间期患者做观察细,筛选28例健康人做对照组,应用超声心动图检测左室收缩功能指标、左室舒张功能指标的变化。结果观察组左室短轴缩短率(FS)和左室射血分数(EF)均较对照组下降(P<0.05),二尖瓣血流频谱E/A比值较对照组降低(P<0.01),肺静脉血流频谱显示心室收缩期S波的最大速度(S)、心室舒张期D波的最大速度(D)均较对照组降低(P<0.05),反向心房收缩A波的最大速度(Pva)较对照组增加(P<0.01)。结论长P-R间期患者左室收缩功能及舒张功能存在障碍。

Objective To evaluate the changes in the cardiac function by ulrtasoundcardiogram for long P - R interval patients. Methods 28 patients with long P - R interval patients diagnosis by clinic was assigned as observe group and 28 healthy people was taken as control group. Ultrasoundcardiogram was used to detect left ventricular systolic function and left ventricular diastolic function in two groups. Results Compared with control group, the observe group was lower in left ventricular fractional shortening（FS） and left vcntricular ejective function（EF） （ P 〈 0. 05 ）. The E/A ratio of observe group was lower than the one in the control group （ P 〈 0.01 ）, The left ventricular diastolic function of the observe group was lower in the maximum velocity of S and D waves in pulmonary vein spectrum（ P 〈 0.05 ） , and the maximum velocity of A waves in pulmonary vein spectrum was increased（P 〈 0.01 ）. Conclusion Systolic function and diastrolie function of left ventricle of long P - R interval patients are in disorder. It indicates long P - R interval may lead to the decrease of left ventricular systolic function and diastolic function.