Left Ventricular Strain Rate for Intraoperative Evaluation of Cardiac Diastolic Function by Transesophageal Echocardiography: The Correlation between Late Diastolic Peak Longitudinal Strain Rate and the Severity of Diastolic Dysfunction

2021 ◽  
Author(s):  
Farzad Ebrahimi ◽  
Mohammad Hadi Gharedaghi ◽  
Hamed Shafaroodi ◽  
Mehdi Ghasemi ◽  
Katayoun Aghajani ◽  
...  
Keyword(s):  
Strain Rate ◽  
Diastolic Dysfunction ◽  
Transesophageal Echocardiography ◽  
Diastolic Function ◽  
Longitudinal Strain ◽  
Left Ventricular ◽  
Left Ventricular Strain ◽  
Intraoperative Evaluation ◽  
Peak Longitudinal Strain ◽  
Longitudinal Strain Rate

scholarly journals Delay of left ventricular longitudinal expansion with diastolic dysfunction: impact on load dependence of e′ and longitudinal strain rate

2014 ◽  
Vol 2 (7) ◽  
pp. e12082 ◽  
Author(s):  
Hiroyuki Iwano ◽  
Min Pu ◽  
Bharathi Upadhya ◽  
Brett Meyers ◽  
Pavlos Vlachos ◽  
...  
Keyword(s):  
Strain Rate ◽  
Diastolic Dysfunction ◽  
Longitudinal Strain ◽  
Left Ventricular ◽  
Load Dependence ◽  
Longitudinal Strain Rate

Longitudinal evaluation of cardiovascular function in six healthy cats aged 1–8 years

2020 ◽  
pp. 1098612X2093225
Author(s):  
Keisuke Sugimoto ◽  
Takuma Aoki ◽  
Yoko Fujii
Keyword(s):  
Strain Rate ◽  
Longitudinal Strain ◽  
Structural Changes ◽  
Left Ventricular ◽  
Age Related ◽  
Peak Longitudinal Strain ◽  
Adult Cats ◽  
Systolic And Diastolic Function ◽  
The Impact ◽  
Longitudinal Strain Rate

Objectives The purpose of this study was to determine the impact of ageing on the cardiovascular system of healthy adult cats. Methods Six experimental cats were used. Echocardiography and measurements of systolic blood pressure (SBP) were performed every year for 8 years (from 1 year of age to 8 years of age) in all cats. Age-related changes to left ventricular (LV) structures, LV systolic and diastolic function, and SBP were assessed. Results There were no significant changes in LV structures and SBP. Peak longitudinal strain rate during systole was decreased at 8 years of age, and peak longitudinal strain rate during diastole was decreased from 6 years of age. Conclusions and relevance This study revealed that some measures of cardiac function recorded in six healthy cats from 1 to 8 years of age were affected as the cats got older; however, there were no structural changes or changes in measurements that are routinely assessed in clinical practice.

scholarly journals Global diastolic strain rate for the assessment of left ventricular diastolic dysfunction in young peritoneal dialysis patients: a case control study

2020 ◽  
Author(s):  
Jing Zhu ◽  
Fei Shi ◽  
Tao You ◽  
Chao Tang ◽  
Jianchang Chen
Keyword(s):  
Peritoneal Dialysis ◽  
Strain Rate ◽  
Diastolic Dysfunction ◽  
Diastolic Function ◽  
Peak Velocity ◽  
Left Ventricular ◽  
Volume Index ◽  
Diastolic Strain Rate ◽  
Diastolic Velocity ◽  
Lv Diastolic Function

Abstract Background: Left ventricular (LV) myocardial longitudinal diastolic strain rate measured by two-dimensional speckle tracking imaging (2D-STI) was proved to have a better correlation with the LV diastolic function. We aimed to use this sensitive tool to predict LV myocardial diastolic dysfunction in young peritoneal dialysis (PD) patients with preserved LV ejection fraction (LVEF).Methods: We enrolled 30 PD patients aged ≤60 with LVEF ≥54% and classified as normal LV diastolic function by conventional echocardiography, and 30 age- and sex-matched healthy people as the control group. The left atrial maximum volume index (LAVI), LV mass index (LVMI), LVEF, LV posterior wall thickness (LVPWT), interventricular septal thickness (IVST), peak velocity of tricuspid regurgitation (TR), peak early diastolic velocity/late diastolic velocity(by Pulsed Doppler) (E/A) and E/peak velocity of the early diastolic wave (by Pulsed-wave tissue Doppler) (E/e’) were recorded by conventional echocardiographic. Next, the average LV global longitudinal systolic strain (GLS avg) and the average LV global longitudinal diastolic strain rate (DSr avg) during early diastole (DSrE avg), late diastole (DSrA avg) and isovolumic relaxation period (DSrIVR avg) were obtained from 2D-STI. Combined them with E, the new noninvasive indexes (E/DSrE avg, E/DSrA avg and E/DSrIVR avg) were derived.Results: The PD group ’s LVEF, E/e¢, TR and LAVI were in the normal range compared with the controls, and only e¢ (p<0.001) was decreased. The LVMI (p<0.001), LVPWT (p<0.001), IVST (p<0.001) increased while E/A (p<0.001) decreased. The GLS avg (p=0.008) was significantly decreased in PD patients compared with the controls. DSrA avg (p=0.006) and E/DSrE avg (p=0.006) were increased, while DSrE avg (p<0.001), DSrIVR avg (p=0.017) and E/DSrA avg (p<0.001) decreased. After the multivariable regression analysis, the correlation between DSrE and the conventional parameters including LVPWT (p<0.001), E/A (p<0.001) still remained significant. Conclusions: Young PD patients with preserved LVEF already exhibited myocardial diastolic dysfunction. Global diastolic strain rate indexes were valuable parameters to evaluate diastolic dysfunction. Additionally, LVPWT was highly correlated with DSrE, such parameter should be taken into account for predicting the early LV diastolic dysfunction in clinical practice.

Abstract 2570: Effects Of Exercise On Left Ventricular Diastolic Function Depend On Homogenous Increase In Diastolic Strain Rates

Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Teck Hwa Goh ◽  
Zoran B Popovic ◽  
Adisai Buakhamsri ◽  
Neil Greenberg ◽  
James D Thomas
Keyword(s):  
Strain Rate ◽  
Longitudinal Strain ◽  
Stress Testing ◽  
Color Doppler ◽  
Left Ventricular Diastolic Function ◽  
Left Ventricular ◽  
Strain Rates ◽  
The Difference ◽  
The Relationship ◽  
Longitudinal Strain Rate

Objectives: It has been speculated that early diastolic left ventricular (LV) suction depends on LV apex relaxing more promptly than LV base, and that these relationships are accentuated during exercise. In this study, we sought to determine impact of exercise on the relationship between parameters of LV diastolic mechanics (peak early longitudinal (E SrL), circumferential (E SrC) and radial (E SrR) strain rate, and peak LV untwisting velocity) and intraventricular pressure gradient (IVPG) as marker of diastolic suction. Methods: We studied 23 healthy volunteers (age 38 ± 10 years, 13 females) by Vivid 7 ultrasound machine (GE) during supine bicycle stress. Segmental diastolic strain rates and untwisting velocity were obtained by speckle tracking software (EchoPac, GE Medical) while IVPG was measured by applying the Euler equation to the transmitral color Doppler M mode of the LV inflow. Segmental diastolic strain rates were averaged over basal, mid, and apical levels. Results: Absolute values of E SrL, E SrC and E SrR homogenously increased during exercise (P<0.001 for all) by the same degree at all LV three levels (p=NS for the difference between levels). (see table ) Untwisting velocity during exercise increased from -1.54 ± 0.69 to -3.40 ± 1.54 rad/s while IVPG increased from 1.41 ± 0.67 to 3.90 ± 1.69 mmHg (p<0.001 for both). Out of strain parameters, average E SrL increase during exercise showed strongest correlation with IVPG (r=0.64, p<0.001) and untwisting velocity (r=0.62, p<0.001). Higher untwisting velocity was associated with the greater IVPG (r=0.70, p<0.001). Conclusions: Increase of suction during exercise is related to homogeneous augmentation of relaxation throughout left ventricle. Longitudinal strain rate was the best predictor of the increase of untwisting velocity and IVPG. These data could serve as a reference for diastolic stress testing.

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.

scholarly journals Global diastolic strain rate for the assessment of left ventricular diastolic dysfunction in young peritoneal dialysis patients: a case control study

2020 ◽  
Author(s):  
Jing Zhu ◽  
Fei Shi ◽  
Tao You ◽  
Chao Tang ◽  
Jianchang Chen
Keyword(s):  
Peritoneal Dialysis ◽  
Strain Rate ◽  
Diastolic Dysfunction ◽  
Diastolic Function ◽  
Peak Velocity ◽  
Left Ventricular ◽  
Volume Index ◽  
Diastolic Strain Rate ◽  
Diastolic Velocity ◽  
Lv Diastolic Function

Abstract Background: Left ventricular (LV) myocardial longitudinal diastolic strain rate measured by two-dimensional speckle tracking imaging (2D-STI) was proved to have a better correlation with the LV diastolic function. We aimed to use this sensitive tool to predict LV myocardial diastolic dysfunction in young peritoneal dialysis (PD) patients with preserved LV ejection fraction (LVEF). Methods: We enrolled 30 PD patients aged ≤60 with LVEF ≥54% and classified as normal LV diastolic function by conventional echocardiography, and 30 age- and sex-matched healthy people as the control group. The left atrial maximum volume index (LAVI), LV mass index (LVMI), LVEF, LV posterior wall thickness (LVPWT), interventricular septal thickness (IVST), peak velocity of tricuspid regurgitation (TR), peak early diastolic velocity/late diastolic velocity(by Pulsed Doppler) (E/A) and E/peak velocity of the early diastolic wave (by Pulsed-wave tissue Doppler) (E/e’) were recorded by conventional echocardiographic. Next, the average LV global longitudinal systolic strain (GLS avg) and the average LV global longitudinal diastolic strain rate (DSr avg) during early diastole (DSrE avg), late diastole (DSrA avg) and isovolumic relaxation period (DSrIVR avg) were obtained from 2D-STI. Combined them with E, the new noninvasive indexes (E/DSrE avg, E/DSrA avg and E/DSrIVR avg) were derived. Results: The PD group ’s LVEF, E/e¢, TR and LAVI were in the normal range compared with the controls, and only e¢ (p<0.001) was decreased. The LVMI (p<0.001), LVPWT (p<0.001), IVST (p<0.001) increased while E/A (p<0.001) decreased. The GLS avg (p=0.008) was significantly decreased in PD patients compared with the controls. DSrA avg (p=0.006) and E/DSrE avg (p=0.006) were increased, while DSrE avg (p<0.001), DSrIVR avg (p=0.017) and E/DSrA avg (p<0.001) decreased. After the multivariable regression analysis, the correlation between DSrE and the conventional parameters including LVPWT (p<0.001), E/A (p<0.001) still remained significant. Conclusions: Young PD patients with preserved LVEF already exhibited myocardial diastolic dysfunction. Global diastolic strain rate indexes were valuable parameters to evaluate diastolic dysfunction. Additionally, LVPWT was highly correlated with DSrE, such parameter should be taken into account for predicting the early LV diastolic dysfunction in clinical practice.

scholarly journals Global diastolic strain rate for the assessment of left ventricular diastolic dysfunction in young peritoneal dialysis patients: a case control study

2019 ◽  
Author(s):  
Jing Zhu ◽  
Fei Shi ◽  
Tao You ◽  
Chao Tang ◽  
Jianchang Chen
Keyword(s):  
Peritoneal Dialysis ◽  
Strain Rate ◽  
Diastolic Dysfunction ◽  
Diastolic Function ◽  
Peak Velocity ◽  
Left Ventricular ◽  
Volume Index ◽  
Diastolic Strain Rate ◽  
Diastolic Velocity ◽  
Lv Diastolic Function

Abstract Abstract Background: Left ventricular (LV) myocardial longitudinal diastolic strain rate measured by two-dimensional speckle tracking imaging (2D-STI) was proved to have a better correlation with the LV diastolic function. We aimed to use this sensitive tool to predict LV myocardial diastolic dysfunction in young peritoneal dialysis (PD) patients with preserved LV ejection fraction (LVEF). Methods: We enrolled 30 PD patients aged ≤60 with LVEF ≥54% and classified as normal LV diastolic function by conventional echocardiography, and 30 age- and sex-matched healthy people as the control group. The left atrial maximum volume index (LAVI), LV mass index (LVMI), LVEF, LV posterior wall thickness (LVPWT), interventricular septal thickness (IVST), peak velocity of tricuspid regurgitation (TR), peak early diastolic velocity/late diastolic velocity(by Pulsed Doppler) (E/A) and E/peak velocity of the early diastolic wave (by Pulsed-wave tissue Doppler) (E/e’) were recorded by conventional echocardiographic. Next, the average LV global longitudinal systolic strain (GLS avg) and the average LV global longitudinal diastolic strain rate (DSr avg) during early diastole (DSrE avg), late diastole (DSrA avg) and isovolumic relaxation period (DSrIVR avg) were obtained from 2D-STI. Combined them with E, the new noninvasive indexes (E/DSrE avg, E/DSrA avg and E/DSrIVR avg) were derived. Results: The PD group ’s LVEF, E/e, TR and LAVI were in the normal range compared with the controls, and only e (p<0.001) was decreased. The LVMI (p<0.001), LVPWT (p<0.001), IVST (p<0.001) increased while E/A (p<0.001) decreased. The GLS avg (p=0.008) was significantly decreased in PD patients compared with the controls. DSrA avg (p=0.006) and E/DSrE avg (p=0.006) were increased, while DSrE avg (p<0.001), DSrIVR avg (p=0.017) and E/DSrA avg (p<0.001) decreased. After the multivariable regression analysis, the correlation between DSrE and the conventional parameters including LVPWT (p<0.001), E/A (p<0.001) still remained significant. Conclusions: Young PD patients with preserved LVEF already exhibited myocardial diastolic dysfunction. Global diastolic strain rates such as DSrE, E/DSrE, DSrA, E/DSrA, and DSrIVR were valuable parameters to evaluate diastolic dysfunction. Additionally, LVPWT and E/A significantly influenced DSrE, such parameters should be taken into account for predicting the LV diastolic dysfunction in clinical practice.

Characteristic systolic waveform of left ventricular longitudinal strain rate in patients with hypertrophic cardiomyopathy

2016 ◽  
Vol 32 (5) ◽  
pp. 591-599 ◽  
Author(s):  
Kazunori Okada ◽  
Sanae Kaga ◽  
Taisei Mikami ◽  
Nobuo Masauzi ◽  
Ayumu Abe ◽  
...  
Keyword(s):  
Hypertrophic Cardiomyopathy ◽  
Strain Rate ◽  
Longitudinal Strain ◽  
Left Ventricular ◽  
Longitudinal Strain Rate

scholarly journals Myocardial steatosis as a possible mechanistic link between diastolic dysfunction and coronary microvascular dysfunction in women

2016 ◽  
Vol 310 (1) ◽  
pp. H14-H19 ◽  
Author(s):  
Janet Wei ◽  
Michael D. Nelson ◽  
Edward W. Szczepaniak ◽  
Laura Smith ◽  
Puja K. Mehta ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Strain Rate ◽  
Diastolic Dysfunction ◽  
Diastolic Function ◽  
Circumferential Strain ◽  
Microvascular Dysfunction ◽  
Left Ventricular ◽  
Coronary Microvascular Dysfunction ◽  
Resonance Spectroscopy ◽  
Myocardial Steatosis

Women with coronary microvascular dysfunction (CMD) and no obstructive coronary artery disease (CAD) have increased rates of heart failure with preserved ejection fraction (HFpEF). The mechanisms of HFpEF are not well understood. Ectopic fat deposition in the myocardium, termed myocardial steatosis, is frequently associated with diastolic dysfunction in other metabolic diseases. We investigated the prevalence of myocardial steatosis and diastolic dysfunction in women with CMD and subclinical HFpEF. In 13 women, including eight reference controls and five women with CMD and evidence of subclinical HFpEF (left ventricular end-diastolic pressure >12 mmHg), we measured myocardial triglyceride content (TG) and diastolic function, by proton magnetic resonance spectroscopy and magnetic resonance tissue tagging, respectively. When compared with reference controls, women with CMD had higher myocardial TG content (0.83 ± 0.12% vs. 0.43 ± 0.06%; P = 0.025) and lower diastolic circumferential strain rate (168 ± 12 vs. 217 ± 15%/s; P = 0.012), with myocardial TG content correlating inversely with diastolic circumferential strain rate (r = −0.779; P = 0.002). This study provides proof-of-concept that myocardial steatosis may play an important mechanistic role in the development of diastolic dysfunction in women with CMD and no obstructive CAD. Detailed longitudinal studies are warranted to explore specific treatment strategies targeting myocardial steatosis and its effect on diastolic function.

scholarly journals A Method for Direct Estimation of Left Ventricular Global Longitudinal Strain Rate from Echocardiograms

2021 ◽  
Author(s):  
Brett A. Meyers ◽  
Melissa C. Brindise ◽  
Shelby Kutty ◽  
Pavlos P. Vlachos
Keyword(s):  
Strain Rate ◽  
Longitudinal Strain ◽  
Global Longitudinal Strain ◽  
Strain Analysis ◽  
Ground Truth ◽  
Absolute Error ◽  
Left Ventricular ◽  
Ultrasound Images ◽  
Measurement Variability ◽  
Longitudinal Strain Rate

Abstract We present a new method for measuring global longitudinal strain and global longitudinal strain rate from 2D echocardiograms using a logarithmic-transform correlation (LTC) method. Traditional echocardiography strain analysis depends on user inputs and chamber segmentation, which yield increased measurement variability. In contrast, our approach is automated and does not require cardiac chamber segmentation and regularization, thus eliminating these issues. The algorithm was benchmarked against two conventional strain analysis methods using synthetic left ventricle ultrasound images. Measurement error was assessed as a function of contrast-to-noise ratio (CNR) using mean absolute error and root-mean-square error. LTC showed better agreement to the ground truth for strain (𝑹𝟐 = 𝟎. 𝟗1) and strain rate (𝑹𝟐 = 𝟎. 85) as compared to conventional algorithms (strain (𝑹𝟐 = 𝟎. 07), strain rate (𝑹𝟐 = 𝟎. 07)) and was unaffected by CNR. A 200% increase in strain measurement accuracy was observed compared to the conventional algorithms. Subsequently, we tested the method using a 54-subject clinical cohort (20 subjects diseased with cardiomyopathy, 34 healthy controls). Our method distinguished between normal and abnormal left ventricular function with an AUC = 0.85, a 10% improvement over the conventional GLS algorithms.

Sign in / Sign up

Export Citation Format

Share Document