二维斑点追踪显像技术评价酒精性心肌病患者左心房功能

摘要

目的 探讨二维斑点追踪显像(2D STE)技术评价酒精性心肌病(ACM)患者左心房功能的价值.方法 收集ACM男性患者31例(ACM组),选取健康男性志愿者30名(对照组),行常规超声及2D-STI检查,观测指标包括:左心房最大容积(LAVmax)、左心房主动收缩前容积(LAVp)、左心房最小容积(LAVmin)、左心房主动射血分数(LAAEF)、左心房被动射血分数(LAPEF)及左心房收缩期平均整体纵向应变率(GLSRs)、舒张早期平均整体纵向应变率(GLSRe)及舒张晚期平均整体纵向应变率(GLSRa)等.结果 与对照组比较,ACM组LAVmax、LAVp、LAVmin、LAAEF、GLSRa增加,LAPEF、GLSRs、GLSRe减低,差异均有统计学意义(P均＜0.05).结论 利用2D-STE技术可有效评价ACM患者左心房功能的变化情况.%Objective To evaluate left atrial function of patients with alcoholic cardiomyopathy (ACM) by using two-dimensional speckle tracking echocardiography (2D-STE). Methods Totally 31 male patients with ACM (ACM group) and 30 health male adults (control group) were examined, and conventional echocardiographic and 2D-STE parameters were obtained, including left atrial maximal volume (LAVmax), left atrial minimal volume (LAVmin), left atrial pre-atrial contraction volume (LAVp) " passive left atrial ejection fraction (LAPEF) , active left atrial ejection fraction (LAAEF) , the global peak atrial longitudinal strain rate of systolic as well as early and late diastolic (GLSRs, GLSRe and GLSRa) of left atrum, etc. Results Compared with the control group, LAVmax,LAVp,LAAEF and GLSRa increased significantly, but LAPEF, GLSRs and GLSRe decreased significantly in ACM group (all P<0. 05). Conclusion 2D-STE could be used to effectively assess left atrial function in patients with alcoholic cardiomyopathy.