斑点追踪成像技术评估不同年龄健康孕妇妊娠期左室心肌整体长轴应变的变化规律
发布时间:2018-12-13 09:16
【摘要】:目的:应用二维斑点追踪成像技术评估不同年龄的健康孕妇在妊娠期间左室心肌整体长轴应变的变化规律。方法:按不同年龄对健康孕妇和未孕女性分组,35岁分为A组(年轻组),≥35岁分为B组(高龄组)。对未孕女性进行超声心动图检查,对孕妇在妊娠8周、12周、16周、20周、24周、28周、32周、36周时进行超声心动图检查,分析左室整体心肌长轴应变峰值(LVGLS),比较2组女性LVGLS的区别,分析LVGLS与年龄的相关性;分析2组孕妇在妊娠期LVGLS的变化规律。结果:未孕女性A组和B组的LVGLS差异有统计学意义,且LVGLS与年龄呈负相关(r=0.70)。A组孕妇在早孕期LVGLS先增强,中晚孕期逐渐减弱;B组孕妇在整个妊娠期LVGLS均呈逐渐减弱趋势,2组之间的差异在28~36周时最大(P0.05)。妊娠期间,孕妇LVGLS与年龄呈正相关,中晚孕期两者的相关性较好。结论:未孕女性的LVGLS与年龄呈负相关,妊娠后逐渐呈正相关;年轻孕妇在早孕期LVGLS代偿性增强,高龄孕妇早孕期则无明显代偿性增强,且在妊娠期间LVGLS持续性减弱。
[Abstract]:Aim: to evaluate the changes of global long axis strain of left ventricular myocardium during pregnancy in healthy pregnant women of different ages by using two dimensional speckle tracing imaging. Methods: healthy pregnant women and non-pregnant women were divided into two groups: group A (young group) and group B (aged 鈮,
本文编号:2376299
[Abstract]:Aim: to evaluate the changes of global long axis strain of left ventricular myocardium during pregnancy in healthy pregnant women of different ages by using two dimensional speckle tracing imaging. Methods: healthy pregnant women and non-pregnant women were divided into two groups: group A (young group) and group B (aged 鈮,
本文编号:2376299
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