左室心肌致密化不全患者左室结构与功能关系分析  

Echocardiographic features and left ventricular function in patients with left ventricular noncompaction

作　　者：阮琴韵[1] 屈朝阳[1] 林晓燕[1] 鄢磊[1] 陈济添[1] 辜秋阳[1] 

机构地区：[1]福建医科大学附属第一医院超声影像科,福建福州350005

出　　处：《中国医学影像技术》2008年第4期535-537,共3页Chinese Journal of Medical Imaging Technology

摘　　要：目的探讨左室心肌致密化不全(LVNC)患者的心脏声像特点及左室收缩功能的变化。方法分析72例符合LVNC诊断标准的门诊患者超声心动图,包括左室壁受累范围、左室内径(LVD)、左室射血分数(LVEF)以及合并畸形在内的系统资料。结果患者左室以腔内过多的肌小梁或纵横交错网格状结构为特征,其中21例合并不同类型的先天性心脏畸形。其余51例孤立性LVNC中,LVEF<50%的占35%(18/51),而LVEF、LVD处于"正常"或"临界状态"的占49%(25/51);LVEF、LVD分别与患者年龄、左室受累程度呈中、低度相关。结论孤立性LVNC患者左室收缩功能不全的发生率比以往报道的低,可能与研究人群不同(门诊患者)有关;LVEF的影响因素除了患者就诊时的年龄、左室受累程度外,可能还包括一些目前尚不明确因素,因而长期随访心功能是非常必要的。Objective To investigate echocardiographic findings and left ventricular （LV） systolic function in patient, with LV noncompaction （LVNC）. Methods Seventy-two patients with the diagnosis of LVNC were analyzed in their echocardiographic data including LV range involved, LVD, LVEF and the associated anomaly. Results LV cavity was characterized by the present of multiple, prominent trabeculations and deep recesses. Twenty-one cases were associated with other congenital cardiac defects. For the rest of 51 cases, decreased LVEF occurred in only 35 % patients and basically ＂normal＂ or ＂critical state＂ LVEF and LVD in 49% patients. Correlations between LVEF, LVD and age at presentation, the total number of affected segments were found. Conclusion This study suggests that incidence of LV systolic dysfunction in LVNC be less than previously reported, probably resulting from the difference in research population. Age at presentation, number of affected segments, and some other factors not refered in this study seem to be determinants of LVEF.

关 键 词：心室功能障碍 左 心肌疾病 心室功能 左 超声心动描记术 

分 类 号：R540.45[医药卫生—心血管疾病] R445.1[医药卫生—内科学]