二维斑点追踪技术评价冠脉搭桥患者术后左心室功能的变化
发布时间：2019-06-03 00:37
【摘要】：目的应用二维斑点追踪技术评价冠脉搭桥(CABG)患者术后左心室功能的变化。方法对30例CABG患者,分别于术前、术后1、3、6个月行超声心动图检查,测量左室二腔心、三腔心、四腔心切面长轴应变及应变率,获得左室长轴总体收缩期应变(GLSs)及应变率(GLSRs)、舒张早期应变率(GSRe)、等容舒张期应变率(GSRivr),比较常规超声心动图参数及二维应变参数在冠脉搭桥术后的变化。结果(1)术后1个月左室射血分数(EF)较术前减低且有统计学意义(P0.05),术后3、6个月的EF值升高,但较术前无明显差异。术后1、3、6个月E、A、E/A均较术前无明显差异。(2)术后1个月GLSs从-17.35%±0.98%降低至-15.39%±0.95%,GLSRs从-0.85±0.09降低至-0.74±0.14,P值均0.05,术后3个月逐渐恢复至术前水平,但无统计学差异,术后6个月GLSs-18.71%±0.58%和GLSRs(-0.94±0.15)均较术前增加,且有统计学意义(P0.05)。术后1、3、6个月GSRe、GSRivr均较术前增加,且逐渐提高,有统计学意义(P0.05)。结论二维斑点追踪技术能定量评价CABG术后患者的左心室功能,并较常规超声心动图检查更早发现左室收缩及舒张功能的变化,为临床评价CABG术治疗效果提供了一种较准确的方法。
[Abstract]:Objective to evaluate the changes of left ventricular function in patients with coronary artery bypass grafting (CABG) by two-dimensional speckle tracking technique. Methods Echocardiography was performed in 30 patients with CABG before, 1, 3 and 6 months after operation. The long axial strain and strain rate of left ventricular two-chamber heart, three-chamber heart and four-chamber heart section were measured. The changes of left ventricular long axis systolic strain (GLSs) and strain rate (GLSRs), early diastolic strain rate (GSRe), isoelastic diastolic strain rate (GSRivr), were compared with those of conventional echocardiography and two-dimensional strain parameters after coronary artery bypass grafting (CABG). Results (1) the left ventricular ejection fraction (EF) at 1 month after operation was significantly lower than that before operation (P 0.05). The EF value at 3 months and 6 months after operation was higher than that before operation, but there was no significant difference between before and after operation. 1, 3, 6 months after operation, A, E 鈮，
本文编号：2491538
[Abstract]:Objective to evaluate the changes of left ventricular function in patients with coronary artery bypass grafting (CABG) by two-dimensional speckle tracking technique. Methods Echocardiography was performed in 30 patients with CABG before, 1, 3 and 6 months after operation. The long axial strain and strain rate of left ventricular two-chamber heart, three-chamber heart and four-chamber heart section were measured. The changes of left ventricular long axis systolic strain (GLSs) and strain rate (GLSRs), early diastolic strain rate (GSRe), isoelastic diastolic strain rate (GSRivr), were compared with those of conventional echocardiography and two-dimensional strain parameters after coronary artery bypass grafting (CABG). Results (1) the left ventricular ejection fraction (EF) at 1 month after operation was significantly lower than that before operation (P 0.05). The EF value at 3 months and 6 months after operation was higher than that before operation, but there was no significant difference between before and after operation. 1, 3, 6 months after operation, A, E 鈮，
本文编号：2491538
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