Risk prediction of cardiac events and cardiac death after acute myocardial infarction by speckle tracking ;imaging:a long-term follow-up study
10.3760/cma.j.issn.1004-4477.2015.06.001
- VernacularTitle:斑点追踪技术预测急性心肌梗死患者再发心血管事件及死亡风险的随访研究
- Author:
Hongning SONG
;
Ruiqiang GUO
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Myocardial infarction;
Speckle tracking imaging;
Recurrence of cardiovascular events
- From:
Chinese Journal of Ultrasonography
2015;(6):461-465,466
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze cardiac function of patients with first onset acute myocardial infarction (AMI)by speckle tracking imaging (STI).With clinical data of long-term follow-up,to explored the prognostic value of left ventricular functional reservation and damage after AMI.Methods Seventy-eight patients with first onset AMI were enrolled in the study.Dynamic images were acquired before primary percutaneous coronary intervention for the analyses of longitudinal peak systolic strain (LPSS), radial peak systolic strain (RPSS)and circumferential peak systolic strain (CPSS).Clinical data of long-term follow-up,results of electrocardiogram and coronary angiography were used for the evaluation of the recurrence risk of cardiac events and cardiac death after AMI.All the baseline clinical data and parameters of echocardiography were compared between patients with and without cardiac events and cardiac death during follow-up.Results Baseline clinical data of electrocardiogram and coronary angiography didn't show significant differences for the comparison of AMI patients with and without cardiac events and cardiac death during long-term follow-up.Compared to patients without cardiac events during follow-up,LPSS and CPSS (P <0.001)of patients with cardiac events were relatively lower and the prognostic value of CPSS (HR=1 .4096)for the recurrence risk of cardiac events was better.For the risk prediction of cardiac death,LPSS ( P <0.001,HR=1.5735)was relatively better.Conclusions Left ventricular functional reservation and damage after AMI were accurately assessed by STI,which helped predicted the recurrence risk of cardiac events and cardiac death of AMI patients.CPSS and LPSS were optimal indicators for the prediction of cardiac events and cardiac death,respectively.
