二维斑点超声追踪显像技术评价孕期女性左心房功能变化

发布时间：2018-08-13 17:37

【摘要】：目的应用二维斑点超声追踪显像技术评价孕期妇女左心房功能变化。方法对25名孕妇和24名年龄匹配的未孕女性(对照组)进行超声心动图检查。所有孕妇产后第6个月再次行超声检查。通过双平面Simpson's法获得左心房最大容积、左心房主动收缩前容积、左心房最小容积。通过计算获得左心房充盈容积、左心房扩张指数、左心房射血分数,被动射血容积、被动射血指数、主动射血容积、主动射血指数等指标。同时应用二维斑点超声追踪显像技术测量左心房应变及应变率。结果与对照组相比,产前组左心房储蓄功能及辅助泵增强,而左心房管道功能减低(P0.05)。而对照组和产后组之间的左心房功能指标的差异均无统计学意义(P0.05)。结论孕期左心房管道功能受损,储蓄功能及辅助泵功能均增强。这种变化随着分娩的结束而得到恢复。二维斑点超声追踪显像技术可以准确评价孕期左心房功能变化。
[Abstract]:Objective to evaluate the changes of left atrial function in pregnant women by using two-dimensional speckle ultrasound. Methods Echocardiography was performed in 25 pregnant women and 24 non-pregnant women (control group). All pregnant women were examined again by ultrasound at the 6th month postpartum. The maximal volume of left atrium, the presystolic volume of left atrium and the minimum volume of left atrium were obtained by biplane Simpson's method. The indexes of left atrial filling volume, left atrial dilatation index, left atrial ejection fraction, passive ejection volume, passive ejection index, active ejection volume and active ejection index were obtained. At the same time, the strain and strain rate of left atrium were measured by two-dimensional speckle ultrasonic tracing imaging. Results compared with the control group, the left atrial saving function and auxiliary pump were enhanced, while the left atrial conduit function was decreased in the prenatal group (P0.05). There was no significant difference in left atrial function between control group and postpartum group (P0.05). Conclusion the function of left atrial conduit was damaged and the function of saving and auxiliary pump were enhanced during pregnancy. This change recovers with the end of childbirth. Two-dimensional speckle ultrasonography can accurately evaluate the left atrial function during pregnancy.
【作者单位】：中国医科大学附属盛京医院超声科;中国医科大学附属第一医院产科;
【基金】：辽宁省科技厅科学技术计划项目(2013225049)
【分类号】：R714.1;R540.45

【参考文献】