Additional diagnostic accuracy of global longitudinal strain at peak dobutamine stress in patients with moderate pretest probability of coronary artery disease

2020 ◽  
Vol 37 (8) ◽  
pp. 1222-1232
Author(s):  
Ahmed A. Elamragy ◽  
Mohamed A. Abdelwahab ◽  
Dalia R. Elremisy ◽  
Mohamed Hassan ◽  
Waleed A. Ammar ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Diagnostic Accuracy ◽  
Longitudinal Strain ◽  
Global Longitudinal Strain ◽  
Dobutamine Stress ◽  
Pretest Probability ◽  
Artery Disease

scholarly journals Speckle-tracking during dipyridamole stress echocardiography in the detection of myocardial ischemia in patients with suspected coronary artery disease

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
L Moderato ◽  
G Pastorini ◽  
D Lazzeroni ◽  
A Monello ◽  
G Rusticali ◽  
...  
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Stress Echocardiography ◽  
Longitudinal Strain ◽  
Global Longitudinal Strain ◽  
Model Average ◽  
Significant Difference ◽  
Artery Disease ◽  
Dipyridamole Stress Echocardiography ◽  
Dipyridamole Stress

Abstract Background The aim of this study was to investigate the incremental value of global longitudinal strain (GLS), postsystolic strain index (PSI) and prestretch (PSE) by automated function imaging with respect to wall motion (WM) and coronary flow reserve (CFR) for the diagnosis of significant coronary artery disease (CAD) during dipyridamole stress echocardiography. Methods We retrospectibely enrolled 227 patients with known or suspected CAD, approaching our echo lab to perform a DSE; all patient underwent coronary angiography within 1 month for clinical reasons. Obstructive CAD was defined as the evidence of >70% stenosis during coronary angiogram. Obstructive CAD was detected in 143 (63%) patients, while 84 (37%) had no significant CAD. Global longitudinal strain, PSI and PSE were measured at rest and peak of the stress (after 6 minutes of 0,84mg/kg of dipyridamole infusion). Results Patient with CAD showed a significantly lower GLS at rest (−16.9±4.2 vs −18.6±3.4; p<0.01) and peak (14.9±3.8 vs −21.50±3.3; p<0.01) Figure A; the behavior of GLS was opposite, in patient with CAD showed an increase while in patient without CAD a significant decrease after dipyridamole infusion. There was also a significant difference between groups for Delta PSI (PSIpeak − PSIrest) and Delta PSE (PSEpeak − PSErest), respectively 126±145 vs −40±97, (p<0.01) and 108±163 vs −41±106 (p<0.01) Figure C. ROC analyses produced a statistically valid model: Average GLS at peak (p 0.001; AUC=0.906, cut-off value −18%, sensitivity 83% and specificity 82%); on the basis of these results, we compared WM and myocardial deformation analysis and GLS was superior to CFR LAD, Delta EF, Delta ESV and Delta WMI (Figure B). Conclusions GLS, PSE and PSI show an opposite response to dipyridamole, in patients with CAD in patient without CAD and show much higher sensitivity and specificity compared to the conventional parameters like WMI, EF and CFR in detecting CAD Funding Acknowledgement Type of funding source: None

Global Longitudinal Strain at Rest for Detection of Coronary Artery Disease in Patients without Diabetes Mellitus

2018 ◽  
Vol 38 (3) ◽  
pp. 413-421 ◽  
Author(s):  
Hou-juan Zuo ◽  
Xiu-ting Yang ◽  
Qi-gong Liu ◽  
Yan Zhang ◽  
He-song Zeng ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Longitudinal Strain ◽  
Global Longitudinal Strain ◽  
Artery Disease
Sign in / Sign up

Export Citation Format

Share Document