Diagnostic potential of myocardial early systolic lengthening for patients with suspected non-ST-segment elevation acute coronary syndrome

被引:1
|
作者
Zhang, Wanwei [1 ]
Cai, Qizhe [1 ]
Lin, Mingming [1 ]
Tian, Runyu [1 ]
Jin, Shan [1 ]
Qin, Yunyun [1 ]
Lu, Xiuzhang [1 ]
机构
[1] Capital Med Univ, Beijing Chao Yang Hosp, Dept Ultrasound Med, Beijing 100020, Peoples R China
关键词
Non-ST-segment elevation acute coronary syndrome; Early systolic lengthening; Speckle tracking echocardiography; Deformation; ARTERY-DISEASE; STRAIN ANALYSIS; TASK-FORCE; ECHOCARDIOGRAPHY; DEFORMATION; IDENTIFICATION; INTERVENTION; ASSOCIATION; ANGIOGRAPHY; OCCLUSION;
D O I
10.1186/s12872-023-03364-y
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
BackgroundDuring early systole, ischemic myocardium with reduced active force experiences early systolic lengthening (ESL). This study aimed to explore the diagnostic potential of myocardial ESL in suspected non-ST-segment elevation acute coronary syndrome (NSTE-ACS) patients with normal wall motion and left ventricular ejection fraction (LVEF).MethodsOverall, 195 suspected NSTE-ACS patients with normal wall motion and LVEF, who underwent speckle tracking echocardiography (STE) before coronary angiography, were included in this study. Patients were stratified into the coronary artery disease (CAD) group when there was & GE; 50% stenosis in at least one major coronary artery. The CAD patients were further stratified into the significant (& GE; 70% reduction of vessel diameter) stenosis group or the nonsignificant stenosis group. Myocardial strain parameters, including global longitudinal strain (GLS), duration of early systolic lengthening (DESL), early systolic index (ESI), and post-systolic index (PSI), were analyzed using STE and compared between groups. Receiver operating characteristic curve (ROC) analysis was performed to determine the diagnostic accuracy. Logistic regression analysis was conducted to establish the independent and incremental determinants for the presence of significant coronary stenosis.ResultsThe DESL and ESI values were higher in patients with CAD than those without CAD. In addition, CAD patients with significant coronary stenosis had higher DESL and ESI than those without significant coronary stenosis. The ROC analysis revealed that ESI was superior to PSI for identifying patients with CAD, and further superior to GLS and PSI for predicting significant coronary stenosis. Moreover, ESI could independently and incrementally predict significant coronary stenosis in patients with CAD.ConclusionsThe myocardial ESI is of great value for the diagnosis and risk stratification of clinically suspected NSTE-ACS patients with normal LVEF and wall motion.
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页数:11
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