| 摘要: |
| ［摘要］ 目的 探讨二维超声心动图结合自动功能成像（AFI）技术对房颤患者左室收缩功能的评价效果。方法 选择2016-01～2019-12该院收治的房颤患者41例，并将其分为左室射血分数（LVEF）正常组（LVEF≥50%，20例）和LVEF降低组（LVEF<50%，21例）；另选20名健康体检者作为对照组。比较三组左室舒张末期内径（LVEDd)、左室收缩末期内径(LVESd)以及左心室三腔观纵向峰值应变(GLPS-LAX)、左心室四腔观纵向峰值应变(GLPS-A4C)、左心室二腔观纵向峰值应变(GLPS-A2C)和左心室平均纵向峰值应变(GLPS-AVG)，并分析LVEF与GLPS-LAX、GLPS-A4C、GLPS-A2C、GLPS-AVG的相关性。结果 LVEF正常组和LVEF降低组的年龄、心率、LVEDd和LVESd水平均显著高于对照组（P<0.05）；LVEF降低组的LVEDd和LVESd水平显著高于LVEF正常组（P<0.05）。LVEF正常组的LVEF水平低于对照组，但高于LVEF降低组，差异有统计学意义（P<0.05）。LVEF正常组和LVEF降低组的GLPS-LAX、GLPS-A4C、GLPS-A2C和GLPS-AVG参数水平（绝对值）均显著低于对照组（P<0.05）；而与LVEF正常组比较，LVEF降低组的参数水平（绝对值）更低，差异有统计学意义（P<0.05）。Pearson相关分析结果显示，对照组、LVEF正常组和LVEF降低组的LVEF与GLPS-LAX、GLPS-A4C、GLPS-A2C、GLPS-AVG均呈负相关（P<0.05）。结论 房颤患者的LVEF在左室增大明显时才出现异常，而AFI技术能更早地对左室收缩功能异常作出诊断，为房颤的早发现、早治疗提供技术支持。 |
| 关键词: 二维超声心动图 自动功能成像 心房颤动 左室收缩功能 |
| DOI：10.3969/j.issn.1674-3806.2020.06.11 |
| 分类号:R 455.1 |
| 基金项目:惠州市科技计划项目（编号：20170405） |
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| Preliminary evaluation of left ventricular systolic function in patients with atrial fibrillation by two-dimensional echocardiography combined with automatic functional imaging technology |
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XU Juan, CHEN Qiu-lan, LI Xiao-xuan, et al.
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Department of Ultrasound, Huizhou First Hospital, Guangdong 516000, China
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| Abstract: |
| ［Abstract］ Objective To investigate the evaluating effect of two-dimensional echocardiography combined with automatic functional imaging(AFI) technology on left ventricular systolic function in patients with atrial fibrillation. Methods Forty-one patients with atrial fibrillation admitted to our hospital from January 2016 to December 2019 were selected and were divided into the normal left ventricular ejection fraction(LVEF) group(LVEF≥50%, 20 cases) and the LVEF-reduced group(LVEF<50%, 21 cases). Other twenty subjects undergoing routine physical examination were selected as the control group. Left ventricular end diastolic diameter(LVEDd), left ventricular end systolic diameter(LVESd), global longitudinal peak strain of apical long-axis(GLPS-LAX),global longitudinal peak strain of apical four-chamber(GLPS-A4C), global longitudinal peak strain of apical two-chamber(GLPS-A2C) and average global longitudinal peak strain(GLPS-AVG) were compared among the three groups. The correlation between LVEF and GLPS-LAX, GLPS-A4C, GLPS-A2C, GLPS-AVG was analyzed. Results The age, heart rate, LVEDd and LVESd levels in the normal LVEF group and the LVEF-reduced group were significantly higher than those in the control group(P<0.05). The levels of LVEDd and LVESd in the LVEF-reduced group were significantly higher than those in the normal LVEF group(P<0.05). The level of LVEF in the normal LVEF group was lower than that in the control group, but the level of LVEF in the normal LVEF group was higher than that in the LVEF-reduced group, and the differences were statistically significant(P<0.05). The levels of GLPS-LAX, GLPS-A4C, GLPS-A2C and GLPS-AVG parameters(absolute values) in the normal LVEF group and the LVEF-reduced group were significantly lower than those in the control group(P<0.05). Compared with those in the normal LVEF group, the parameters(absolute values) in the LVEF-reduced group were significantly lower(P<0.05). The results of Pearson correlation analysis showed that LVEF was negatively correlated with GLPS-LAX, GLPS-A4C, GLPS-A2C, and GLPS-AVG in the control group, the normal LVEF group, and the LVEF-reduced group(P<0.05). Conclusion LVEF in the patients with atrial fibrillation only becomes abnormal when the left ventricles enlarge significantly, and AFI technology can diagnose the abnormal left ventricular systolic function earlier, providing technical support for the early detection and treatment of atrial fibrillation. |
| Key words: Two-dimensional echocardiography Automatic functional imaging(AFI) Atrial fibrillation Left ventricular systolic function |
