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目的实时三平面组织多普勒成像技术研究轻、中度单纯肥胖儿童左心收缩功能,为加强对肥胖儿童的干预提供依据。方法实时三平面组织多普勒成像技术和M型超声测量36名轻、中度肥胖儿童和34名正常儿童左室收缩功能。结果肥胖组各室壁二尖瓣环处和大部分室壁的基底部、中间部收缩期峰值速度和最大位移均低于正常组,6个室壁各节段的平均收缩期峰值速度和最大位移2组间差异有统计学意义。结论轻、中度单纯肥胖儿童左室整体和部分室壁局部收缩功能减低。
Objective To investigate the left ventricular systolic function in light and moderate simple obese children by real-time three-plane tissue Doppler imaging, which provides the basis for strengthening the intervention of obese children. Methods Real-time three-plane Tissue Doppler imaging and M-mode ultrasound were used to measure left ventricular systolic function in 36 mild and moderate obesity children and 34 normal children. Results In the obesity group, the peak systolic velocity and maximum systolic displacement at the mitral valve annulus and most of the ventricular wall were lower in obesity group than those in the normal group. The average systolic peak velocity Displacement between the two groups was statistically significant. Conclusion The local and regional LV systolic and diastolic function of mild and moderate simple obesity children decreased.