| 摘要: |
| 摘 要 目的 应用二维斑点追踪技术评价尿毒症患者左房收缩功能，探讨其临床应用价值。方法选取我院收治左室射血分数正常的尿毒症患者60例，根据其左房容积指数（LAVI）分为两组：LAVI＜32ml/m2为A组（30例），LAVI＞32ml/m2为B组（30例），另选性别年龄相匹配的健康成人30例为正常对照组。应用斑点追踪成像测量各组纵向心室收缩期左房峰值应变、心室舒张早期左房峰值应变及心房收缩期左房峰值应变，并比较上述参数的差异。结果 与正常对照组相比较，A组与B组心室收缩期左房峰值应变、心室舒张早期左房峰值应变和心房收缩期左房峰值应变（哪个应变参数？此处需要用全称）均减低，差异均有统计学意义（均P＜0.05）。B组与A组比较，心室收缩期左房峰值应变和心室舒张早期左房峰值应变均减低，差异LAVI有统计学意义（LAVIP＜0.05）；心房收缩期左房峰值应变增加，差异有统计学意义（P＜0.05）。结论 应用斑点追踪成像技术可以早期检测左室射血分数正常的尿毒症患者左房收缩功能障碍，为临床治疗提供有价值的信息。 |
| 关键词: 斑点追踪成像 应变 左房功能 尿毒症 |
| DOI： |
| 投稿时间：2018-02-12修订日期：2018-12-21 |
| 基金项目: |
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| Assessment of Left Atrial Function in Patients with Uremia by 2D Speckle Tracking Imaging |
| liyingtao,zhangrong |
| (The Affiliated Hospital of Medical College Qingdao University) |
| Abstract: |
| ABSTRACT Objective To evaluate the left atrial （LA） systolic function in uremia patients with two-dimensional speckle tracking imaging and to confirm its clinical value. Methods This study inclued 60 uremia patients in our hospital, half of whom have the LAVI less than 32ml/m2 as the group A and the other with LAVI more than 32ml/m2 as the group B . 30 patients of the normal jection fraction of left ventricul were also enrolled in the study as the control group.LA peak systolic strain，LA peak early-diastolic strain and LA peak atrial systolic strain in longitudinal directions of all the subjects were measured with two-dimensional speckle tracking imaging and the measurements were compared among the three groups. Results compared with the control group，LA peak systolic strain，LA peak early-diastolic strain and LA peak atrial systolic strainin in both group A and group B were significantly decreased（P＜0.05）. LA peak systolic strain and LA peak early diastolic strain in the group B were significantly decreased（P＜0.05） when compared with group A, and LA peak atrial systolic strainin was significantly increased（P＜0.05）.Conclusions The speckle tracking imaging has the potential to detect the left atrial dysfunction in inuremia patients with the normal jection fraction of left ventricul which could provide useful information for clinical practice . |
| Key words: speckle tracking imaging strain atrial function uremia |
