产前超声检查胎儿心脏生长指标与孕周的相关性分析

目的 探讨产前超声检查胎儿心脏生长指标与孕周的关系.方法 选取2014年2月至2016年2月行常规产前检查的孕21~25周的孕妇214例,应用二维超声测量胎儿心脏各生长指标.结果 不同孕周左心房横径(LATD)、左心房纵径(LAVD)、右心房横径(RATD)、右心房纵径(RAVD)、左心室横径(LVTD)、左心室纵径(LVVD)、右心室横径(RVTD)和右心室纵径(RVVD)比较差异有统计学意义(P<0.05);不同孕周升主动脉(AAO)、肺主动脉(PA)和动脉导管(DA)内径比较差异有统计学意义(P<0.05);不同孕周主动脉瓣(AV)、肺动脉瓣(PV)、动脉导管、卵圆孔、三尖瓣E峰和A峰血流速度比较差异有统计学意义(P<0.05);LATD、LAVD、RATD、RAVD、LVTD、LVVD、RVTD、RVVD、AAO、PA、DA、AV、PV、动脉导管血流速度、卵圆孔血流速度、E峰和A峰与孕周呈正相关(r=0.332、0.477、0.500、0.422、0.401、0.392、0.381、0.482、0.366、0.281、0.430、0.511和0.312,P<0.05).结论 胎儿心脏各房室腔、大血管及动脉导管内径以及主动脉瓣、肺动脉瓣等血流速度随孕周增加而增大.

Correlation between fetal heart growth indexes and gestational weeks by prenatal ultrasonography

Objective To investigate the relationship between fetal heart growth indexes and gestational weeks by prenatal ultrasonography.Methods A total of 214 pregnant women(pregnancy 21~25 weeks) who received routine prenatal examination in our hospital from February 2014 to February 2016 were enrolled in the study. The fetal heart growth parameters were detected by two dimensional ultrasonography.Results There were significant differences in left atrial transverse diameter (LATD),left atrial vertical diameter (LAVD),right atrial transverse diameter (RATD),right atrial vertical diameter (RAVD),left ventriculartransverse diameter (LVTD),left ventricular vertical diameter (LVVD),right ventricular transverse diameter (RVTD) and right ventricular vertical diameter (RVVD) in the pregnant women with different gestational weeks (P<0.05).Moreover there were significant differences in diameter of the ascending aorta (AAO), pulmonary valve (PA), ductus arteriosus (DA), foramen ovale,blood flow velocity in tricuspid E peak and A peak in the pregnant women with different gestational weeks (P<0.05).The LATD,LAVD,RATD,RAVD, LVTD, LVVD, RVTD, RVVD,AAO,PA,DA, AV,PV,blood flow velocity of ductus arteriosus,blood flow velocity of foramen ovale,E peak and A peak were positively correlated to gestational weeks (r=0.332,0.477,0.500,0.422,0.401,0.392,0.381,0.482,0.366,0.281,0.430,0.511, 0.312,rspectively,P<0.05).Conclusion The diameters of fetal heart each room,large vessel,ductus arteriosus as well as blood flow velocity of aortic valve and pulmonary valve are increased with the increase of gestational weeks.