| 刘秋颖,宋敏,窦静,王晓红,王甜甜,柏青.二尖瓣环分离的临床及经胸超声心动图表现[J].中国医学影像技术,2025,41(6):919~923 |
| 二尖瓣环分离的临床及经胸超声心动图表现 |
| Clinical and transthoracic echocardiographic manifestations of mitral annular disjunction |
| 投稿时间：2024-11-26 修订日期：2025-03-31 |
| DOI：10.13929/j.issn.1003-3289.2025.06.015 |
| 中文关键词: 二尖瓣环分离 超声心动描记术 |
| 英文关键词:mitral annular disjunction echocardiography |
| 基金项目: |
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| 中文摘要: |
| 目的 观察二尖瓣环分离(MAD)的临床及经胸超声心动图表现。方法 回顾性分析990人经胸超声心动图检查资料,基于超声测量二尖瓣后叶附着点与左心室后壁距离并判断是否存在MAD,据以划分MAD组与非MAD(NMAD)组,对比组间临床资料及超声心动图参数;以组间差异有统计学意义的参数为自变量、有无MAD为因变量,采用多因素二元logistic回归分析观察临床特征及超声心动图参数与MAD的相关性。结果 共检出186例(186/990,18.79%)MAD。MAD组患者年龄、左心房前后径(LAD)、左心室前后径(LVD)、二尖瓣舒张晚期流速(A)及二尖瓣口舒张早期流速(E)/A均小于NMAD组,而中度及以上二尖瓣反流占比高于NMAD组(P均＜0.05)。年龄及经胸超声心动图所测A、E/A均与MAD相关(P均＜0.05)。结论 MAD临床及经胸超声心动图表现均有一定特征性。 |
| 英文摘要: |
| Objective To observe the clinical and transthoracic echocardiographic manifestations of mitral annular disjunction (MAD). Methods Transthoracic echocardiographic data of 990 individuals were retrospectively analyzed. Based on the distance between the attachment point of posterior mitral valve and posterior wall of left ventricle measured on echocardiography, whether there was MAD was judged, and the subjects were divided into MAD group and non-MAD (NMAD) group, and clinical data and echocardiographic parameters were compared between groups. Taken parameters being significantly different between groups as independent variables and the presence or absence of MAD as dependent variable, multivariate binary logistic regression analysis was used to explore correlations of patients' clinical characteristics and transthoracic echocardiographic parameters of MAD. Results MAD was detected in 186 cases (186/990, 18.79%). Patients' age, left atrial diameter (LAD), left ventricle diameter (LVD), late diastolic velocity of mitral valve (A) and early diastolic velocity of mitral valve orifices (E)/A in MAD group were all lower than those in NMAD group, while the proportion of moderate and above mitral regurgitation in MAD group was higher than that in NMAD group (all P＜0.05). Patients' age, A and E/A measured with transthoracic echocardiography were all correlated with MAD (all P＜0.05). Conclusion Clinical and transthoracic echocardiographic manifestations of MAD had certain characteristics. |
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