scholarly journals FUNCTIONAL CONSEQUENCES OF MYOCARDIAL SCAR AFTER MYOCARDIAL INFARCTION: CHARACTERIZATION OF MYOCARDIAL SCAR EXTENT WITH LATE GADOLINIUM CONTRAST ENHANCED CARDIAC MAGNETIC RESONANCE AND IMPACT ON MULTILAYER GLOBAL LONGITUDINAL STRAIN ON SPECKLE TRACKING ECHOCARDIOGRAPHY

2017 ◽  
Vol 69 (11) ◽  
pp. 1563
Author(s):  
Rachid Abou ◽  
Laurien Goedemans ◽  
Rob J. van der Geest ◽  
Martin Schalij ◽  
Nina Ajmone Marsan ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Speckle Tracking Echocardiography ◽  
Global Longitudinal Strain ◽  
Myocardial Scar ◽  
Gadolinium Contrast ◽  
Contrast Enhanced ◽  
Functional Consequences

scholarly journals Assessment of left ventricular contractility in acute inferior wall myocardial infarction by speckle tracking echocardiography

2021 ◽  
Vol 5 (4) ◽  
pp. 169-175
Author(s):  
E.G. Akramova ◽  
◽  
Е.V. Vlasova ◽  
◽  
Keyword(s):  
Myocardial Infarction ◽  
Ejection Fraction ◽  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Speckle Tracking Echocardiography ◽  
Global Longitudinal Strain ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Inferior Wall ◽  
Ventricular Ejection Fraction

Aim: to assess the results of speckle tracking echocardiography (STE) in patients of working age with acute inferior wall myocardial infarction (MI) in the early period after coronary stenting. Patients and Methods: STE was performed using EPIQ-7 Ultrasound Machine (Philips, USA) in 55 patients with acute inferior wall MI one week after percutaneous coronary intervention and 29 healthy individuals of working age. Patients with acute inferior wall MI were divided into two subgroups, i.e., with (n=45) or without (n=10) areas of local contractile impairment (dyskinesia, akinesia, hypokinesia). Results: the most common cause of MI was the occlusion of the right coronary artery (82.4% in subgroup 1 and 60% in subgroup 2) in multivascular involvement (84.4% and 90%. respectively). In patients with local contractile impairment, reduced left ventricular ejection fraction (EF) was reported in 28.9%, global longitudinal strain in 86.7%, and global circular strain in 76.7%. Meanwhile, in patients without local contractile impairment, left ventricular ejection fraction (LV EF) was within normal ranges, global longitudinal strain was reported in 100% and global circumferential strain in 70%. The presence and severity of local dysfunction did not affect the reduction in segmental strain (median varied from -9% to -15%). In inferior wall MI, the abnormal regional longitudinal strain of 6 LV segments (basal and mid inferoseptal, inferior, and inferolateral) was reported in both hypokinesia and normokinesia. Conclusions: ultrasound evaluation of systolic LV function using STE is characterized by greater diagnostic value compared to the measurement of EF only and objectifies the efficacy of surgery. Quantitative assessment of the recovery of both global and local systolic contractility is another advantage of STE allowing for personalized treatment. KEYWORDS: inferior wall myocardial infarction, echocardiography, speckle tracking technology, percutaneous coronary intervention, ejection fraction. FOR CITATION: Akramova E.G., Vlasova Е.V. Assessment of left ventricular contractility in acute inferior wall myocardial infarction by speckle tracking echocardiography. Russian Medical Inquiry. 2021;5(4):169–175 (in Russ.). DOI: 10.32364/2587-6821-2021-5-4-169-175.

Impact of three-dimensional global longitudinal strain for patients with acute myocardial infarction

2020 ◽  
Author(s):  
Noriaki Iwahashi ◽  
Jin Kirigaya ◽  
Takeru Abe ◽  
Mutsuo Horii ◽  
Noriko Toya ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Heart Failure ◽  
Odds Ratio ◽  
Cardiac Death ◽  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Speckle Tracking Echocardiography ◽  
Global Longitudinal Strain ◽  
Three Dimensional ◽  
Secondary Endpoint

Abstract Aims In patients with ST-segment elevation myocardial infarction (STEMI), predicting left ventricular (LV) remodelling (LVR) and prognosis is important. We explored the clinical usefulness of three-dimensional (3D) speckle-tracking echocardiography to predict LVR and prognosis in STEMI. Methods and results The study group comprised 255 first STEMI patients (65 years; 210 men) treated with primary percutaneous coronary intervention between April 2008 and May 2012 at Yokohama City University Medical Center. Baseline global longitudinal strain (GLS) was measured with two-dimensional (2D) and 3D speckle-tracking echocardiography. Within 48 of admission, standard 2D echocardiography and 3D full-volume imaging were performed, and 2D-GLS and 3D-GLS were calculated. Infarct size was estimated by 99mTc-sestamibi single-photon emission computed tomography. Echocardiography was performed at 1 year repeatedly in 239 patients. The primary endpoint was LVR, defined as an increase of 20% of LV end-diastolic volume index and major adverse cardiac and cerebrovascular events (MACE: cardiac death, non-fatal MI, heart failure, and ischaemic stroke) at 1 year, and the secondary endpoint was cardiac death and heart failure. Patients were followed for 1 year; 64, 25, and 16 patients experienced LVR, MACE, and the secondary endpoint, respectively. Multivariate analysis revealed that 3D-GLS was the strongest predictor of LVR (odds ratio = 1.437, 95% CI: 1.047–2.257, P = 0.02), MACE (odds ratio = 1.443, 95% CI: 1.240–1.743, P = 0.0002), and the secondary end point (odds ratio = 1.596, 95% CI: 1.17–1.56, P < 0.0001). Receiver-operating characteristic curve analysis showed that 3D-GLS was superior to 2D-GLS in predicting LVR and 1-year prognosis. Conclusion 3D-GLS obtained immediately after STEMI is independently associated with LVR and 1-year prognosis.

scholarly journals Direct comparison of multilayer left ventricular global longitudinal strain using CMR feature tracking and speckle tracking echocardiography

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Saikrishna Ananthapadmanabhan ◽  
Giau Vo ◽  
Tuan Nguyen ◽  
Hany Dimitri ◽  
James Otton
Keyword(s):  
Feature Tracking ◽  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Speckle Tracking Echocardiography ◽  
Imaging Modality ◽  
Global Longitudinal Strain ◽  
Intraclass Correlation ◽  
Strain Analysis ◽  
Left Ventricular ◽  
Multilayer Strain

Abstract Background Cardiac magnetic resonance feature tracking (CMR-FT) and speckle tracking echocardiography (STE) are well-established strain imaging modalities. Multilayer strain measurement permits independent assessment of endocardial and epicardial strain. This novel and layer specific approach to evaluating myocardial deformation parameters may provide greater insight into cardiac contractility when compared to whole-layer strain analysis. The aim of this study is to validate CMR-FT as a tool for multilayer strain analysis by providing a direct comparison between multilayer global longitudinal strain (GLS) values between CMR-FT and STE. Methods We studied 100 patients who had an acute myocardial infarction (AMI), who underwent CMR imaging and echocardiogram at baseline and follow-up (48 ± 13 days). Dedicated tissue tracking software was used to analyse single- and multi-layer GLS values for CMR-FT and STE. Results Correlation coefficients for CMR-FT and STE were 0.685, 0.687, and 0.660 for endocardial, epicardial, and whole-layer GLS respectively (all p < 0.001). Bland Altman analysis showed good inter-modality agreement with minimal bias. The absolute limits of agreement in our study were 6.4, 5.9, and 5.5 for endocardial, whole-layer, and epicardial GLS respectively. Absolute biases were 1.79, 0.80, and 0.98 respectively. Intraclass correlation coefficient (ICC) values showed moderate agreement with values of 0.626, 0.632, and 0.671 respectively (all p < 0.001). Conclusion There is good inter-modality agreement between CMR-FT and STE for whole-layer, endocardial, and epicardial GLS, and although values should not be used interchangeably our study demonstrates that CMR-FT is a viable imaging modality for multilayer strain

scholarly journals Atrial and Ventricular Structural and Functional Alterations in Obese Children

Medicina ◽  
2021 ◽  
Vol 57 (6) ◽  
pp. 562
Author(s):  
Rima Šileikienė ◽  
Karolina Adamonytė ◽  
Aristida Ziutelienė ◽  
Eglė Ramanauskienė ◽  
Jolanta Justina Vaškelytė
Keyword(s):  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Speckle Tracking Echocardiography ◽  
Myocardial Dysfunction ◽  
Global Longitudinal Strain ◽  
Radial Strain ◽  
Left Ventricular ◽  
Z Score ◽  
Obese Children ◽  
2D Speckle Tracking

Background and objectives: Childhood obesity has reached epidemic levels in the world. Obesity in children is defined as a body mass index (BMI) equal to or above the 95th percentile for age and sex. The aim of this study was to determine early changes in cardiac structure and function in obese children by comparing them with their nonobese peers, using echocardiography methods. Materials and methods: The study enrolled 35 obese and 37 age-matched nonobese children. Standardized 2-dimensional (2D), pulsed wave tissue Doppler, and 2D speckle tracking echocardiography were performed. The z-score BMI and lipid metabolism were assessed in all children. Results: Obese children (aged 13.51 ± 2.15 years; 20 boys; BMI z-score of 0.88 ± 0.63) were characterized by enlarged ventricular and atrial volumes, a thicker left ventricular posterior wall, and increased left ventricular mass. Decreased LV and RV systolic and diastolic function was found in obese children. Atrial peak negative (contraction) strain (−2.05% ± 2.17% vs. −4.87% ± 2.97%, p < 0.001), LV and RV global longitudinal strain (−13.3% ± 2.88% vs. −16.87% ± 3.39%; −12.51% ± 10.09% vs. −21.51% ± 7.42%, p < 0.001), and LV global circumferential strain (−17.0 ± 2.7% vs. −19.5 ± 2.9%, p < 0.001) were reduced in obese children. LV torsion (17.94° ± 2.07° vs. 12.45° ± 3.94°, p < 0.001) and normalized torsion (2.49 ± 0.4°/cm vs. 1.86 ± 0.61°/cm, p = 0.001) were greater in obese than nonobese children. A significant inverse correlation was found between LV and RV global longitudinal strain and BMI (r = −0.526, p < 0.01; r = −0.434, p < 0.01) and total cholesterol (r = −0.417, p < 0.01). Multivariate analysis revealed that the BMI z-score was independently related to LV and RV global longitudinal strain as well as LV circumferential and radial strain. Conclusion: 2D speckle tracking echocardiography is beneficial in the early detection of regional LV systolic and diastolic dysfunctions, with preserved ejection fraction as well as additional RV and atrial involvement, in obese children. Obesity may negatively influence atrial and ventricular function, as measured by 2D speckle tracking echocardiography. Obese children, though they are apparently healthy, may have subclinical myocardial dysfunction.

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