Maturational and Growth-Related Changes in Left Ventricular Longitudinal Strain and Strain Rate Measured by Two-Dimensional Speckle Tracking Echocardiography in Healthy Pediatric Population

2008 ◽  
Vol 21 (11) ◽  
pp. 1207-1215 ◽  
Author(s):  
Steven M. Lorch ◽  
Achiau Ludomirsky ◽  
Gautam K. Singh
Keyword(s):  
Strain Rate ◽  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Speckle Tracking Echocardiography ◽  
Pediatric Population ◽  
Left Ventricular ◽  
Two Dimensional ◽  
Strain And Strain Rate

scholarly journals Assessment of Longitudinal Left Ventricle Deformation by 2-Dimensional Speckle Tracking Echocardiography Obtained from Different Views in Cats

2020 ◽  
Vol 7 (3) ◽  
pp. 104
Author(s):  
Domenico Caivano ◽  
Mark Rishniw ◽  
Lucia Baiona ◽  
Francesco Birettoni ◽  
Noemi Nisini ◽  
...  
Keyword(s):  
Strain Rate ◽  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Speckle Tracking Echocardiography ◽  
Left Ventricular ◽  
Deformation Analysis ◽  
Longitudinal Deformation ◽  
Limits Of Agreement ◽  
Measurement Variability ◽  
Strain And Strain Rate

Two-dimensional speckle tracking echocardiography (STE) is a novel, angle-independent imaging technique useful to assess myocardial function by strain and strain rate analysis in human and veterinary medicine. Commonly, the left apical four-chamber (LAP4Ch) view is used to assess left ventricular (LV) longitudinal deformation in dogs and cats. However, the right parasternal four-chamber (RP4Ch) view is often more easily obtained than the LAP4Ch view in cats. No studies exist comparing longitudinal strain and strain rate values using STE from different echocardiographic views in cats. Therefore, we examined the agreement between RP4Ch and LAP4Ch for assessment of LV longitudinal strain and strain rate in cats. We acquired 2D echocardiographic cineloops from RP4Ch and LAP4Ch views and analyzed LV longitudinal strain and strain rate in 50 cats (31 healthy cats and 19 cats with different disease states) using XstrainTM software. Peak systolic strain and strain rate values of endocardial and epicardial border were used for the analysis. The two echocardiographic views were compared using limits-of-agreement analyses and intra-observer measurement variability was assessed. We could obtain longitudinal strain and strain rate from the RP4Ch view in all cats. Strain, but not strain rate, had good intra-observer measurement variability (<10% vs. <20%). However, only endocardial strain values obtained with the two views agreed sufficiently to be used interchangeably (95% limits of agreement: −3.28, 2.58). Epicardial strain/strain rate and endocardial strain rate values did not agree sufficiently to be used interchangeably (95% limits of agreement: −11.58, 9.19; −2.28, 1.74; −1.41, 1.36, respectively). Our study suggests that RP4Ch view was feasible for assessment of the LV longitudinal deformation analysis by STE in cats, but only endocardial longitudinal strain values obtained from the two different views were interchangeable.

Longitudinal strain and strain rate by two-dimensional speckle tracking in non-sedated healthy cats

2013 ◽  
Vol 95 (3) ◽  
pp. 1175-1180 ◽  
Author(s):  
A.C. Silva ◽  
R.A.L. Muzzi ◽  
G. Oberlender ◽  
R.B. Nogueira ◽  
L.A.L. Muzzi ◽  
...  
Keyword(s):  
Strain Rate ◽  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Two Dimensional ◽  
Strain And Strain Rate

scholarly journals New capabilities in assessing the left ventricular contractility by two-dimensional speckle tracking echocardiography

2020 ◽  
Vol 35 (3) ◽  
pp. 79-85
Author(s):  
V. E. Oleynikov ◽  
Yu. G. Smirnov ◽  
V. A. Galimskaya ◽  
E. A. Gundarev ◽  
N. V. Burko
Keyword(s):  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Speckle Tracking Echocardiography ◽  
Global Longitudinal Strain ◽  
Left Ventricular ◽  
Cardiac Resynchronization ◽  
Two Dimensional ◽  
Ventricular Contractility ◽  
Resynchronization Therapy ◽  
Clinical Implementation

This work reviews the reasons why the characteristics of left ventricular (LV) contractility, in particular, and 2D speckle echocardiography-based peak rates of global longitudinal strain (GLS), are not widely used in clinical practice. Authors present the analysis of new indicators proposed for the assessment ofLVcontractile function based on longitudinal strain taking into account the involvement of individual segments. The authors show that the assessment of myocardial work indicators characterizing the relationships between contractile and pump functions is a promising approach for the study ofLVcontractile function. The analysis of postsystolic strain index (PSI) is presented to illustrate its clinical implementation in the studies of viable myocardium in ischemic conditions and evaluating the effectiveness of cardiac resynchronization therapy (CRT).

scholarly journals Left ventricular systolic function impairment in children after balloon valvuloplasty for congenital aortic stenosis assessed by 2D speckle tracking echocardiography

PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0248862
Author(s):  
Krzysztof Godlewski ◽  
Paweł Dryżek ◽  
Elżbieta Sadurska ◽  
Bożena Werner
Keyword(s):  
Strain Rate ◽  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Circumferential Strain ◽  
Systolic Function ◽  
Global Longitudinal Strain ◽  
Left Ventricular ◽  
Strain And Strain Rate ◽  
Eccentric Hypertrophy

Aims The aim of the study was to evaluate left ventricular (LV) remodeling and systolic function using two-dimensional speckle tracking echocardiographic (2D STE) imaging in children at a long-term (more than 36 months, 107.5±57.8 months) after balloon valvuloplasty for aortic stenosis (BAV). Methods and results 40 patients (mean age 9,68 years, 75% male) after BAV and 62 control subjects matched to the age and heart rate were prospectively evaluated. The 2D STE assessment of LV longitudinal and circumferential strain and strain rate was performed. Left ventricular eccentric hypertrophy (LVEH) was diagnosed in 75% of patients in the study group. Left ventricular ejection fraction (LVEF) was normal in all patients. In study group, global longitudinal strain (GLS), global longitudinal strain rate (GLSr) were significantly lower compared with the controls: GLS (-19.7±2.22% vs. -22.3±1.5%, P< 0.001), GLSr (-0.89±0.15/s vs. -1.04 ±0.12/s, P < 0.001). Regional (basal, middle and apical segments) strain and strain rate were also lower compared with control group. Global circumferential strain (GCS), global circumferential strain rate (GCSr) as well as regional (basal, middle and apical segments) strain and strain rate were normal. Multivariable logistic regression analysis included: instantaneous peak systolic Doppler gradient across aortic valve (PGmax), grade of aortic regurgitation (AR), left ventricular mass index (LVMI), left ventricular relative wall thickness (LVRWT), left ventricular end-diastolic diameter (LVEDd), peak systolic mitral annular velocity of the septal and lateral corner (S’spt, S’lat), LVEF before BAV and time after BAV and showed that the only predictor of reduced GLS was LV eccentric hypertrophy [odds ratio 6.9; (95% CI: 1.37–12.5), P = 0.045]. Conclusion Patients at long-term observation after BAV present the subclinical LV systolic impairment, which is associated with the presence of its remodeling. Longitudinal deformation is the most sensitive marker of LV systolic impairment in this group of patients.

Abstract 4246: Dobutamine-induced Reserve of the Two-dimensional Longitudinal Strain Rate Predicts Clinical and Neurohumoral Improvement After Levosimendan Treatment in Acutely Decompensated Chronic Heart Failure

Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Vasiliki Bistola ◽  
Ioannis Paraskevaidis ◽  
Ignatios Ikonomidis ◽  
Ioannis Parissis ◽  
Gerasimos Filippatos ◽  
...  
Keyword(s):  
Strain Rate ◽  
Speckle Tracking ◽  
Longitudinal Strain ◽  
Nyha Class ◽  
Radial Strain ◽  
Left Ventricular ◽  
Contractile Reserve ◽  
Systolic Strain ◽  
Strain And Strain Rate ◽  
Longitudinal Strain Rate

Objective: Levosimendan improves symptoms and the hemodynamic profile in patients with acutely decompensated chronic heart failure (ADCHF). We aimed to investigate: the association of low dose dobutamine (DSE)-induced changes of two-dimensional strain parameters with the corresponding changes of left ventricular ejection fraction (LVEF) and left ventricular outflow tract velocity time integral (LVOT VTI) in patients with ADCHF, and whether left ventricular contractile reserve assessed by both conventional and speckle tracking echocardiography is associated with clinical and neurohumoral improvement after levosimendan treatment. Methods: Thirty one consecutive patients with ADCHF (mean age 65 ± 10 years, NYHA class 3.6 ± 0.3, LVEF 22 ± 6%) were studied by DSE (peak dose 20 μg/kg/min) prior to 24-hour infusion of levosimendan (0.01 μg/kg/min, without bolus). The LVEF, LVOT VTI, mean longitudinal, circumferential and radial strain and strain rate using speckle tracking imaging were measured. Results: Twenty-three patients (74%) had evidence of contractile reserve (increase of LVEF > 10% and LVOT VTI > 20% after peak dobutamine dose, CR+), and 8 (26%) showed no reserve (CR−). CR+ versus CR- patients demonstrated greater improvement of NYHA class (mean NYHA change: −1.0±0.5 vs −0.5±0.3 NYHA class, p=0.01), and reduction of b-type natriuretic peptide levels (− 34±30 vs + 4±31%, p <0.01) 48 hours after completion of treatment. By multivariate analysis, mean longitudinal systolic strain rate reserve (resting - peak longitudinal strain rate ΔLSR (%)) was the best predictor of improvement of NYHA class (p= 0.039) and BNP (p= 0.042) after levosimendan administration among the reserve of: LV FS, EF, LVOT VTI, longitudinal strain, circumferential and radial strain and strain rate. Conclusion: Dobutamine-induced reserve of 2-dimentional speckle tracking longitudinal systolic strain rate is associated with clinical and neurohumoral improvement after treatment with levosimendan in patients with ADCHF.

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