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Global longitudinal strain

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https://www.readbyqxmd.com/read/28210715/feasibility-and-reproducibility-of-two-dimensional-wall-motion-tracking-wmt-in-fetal-echocardiography
#1
Christian Enzensberger, Friederike Achterberg, Jan Degenhardt, Aline Wolter, Oliver Graupner, Johannes Herrmann, Roland Axt-Fliedner
Objective The primary objective of this study was to determine the feasibility and reproducibility of 2-dimensional speckle tracking imaging based on the wall motion tracking (WMT) technique in fetal echocardiography. The secondary objective was to compare left and right ventricular global and segmental longitudinal peak strain values. Methods A prospective cross-sectional study was performed. Global and segmental longitudinal peak strain values of the left ventricle (LV) and right ventricle (RV) were assessed prospectively...
February 2017: Ultrasound International Open
https://www.readbyqxmd.com/read/28209163/cardiovascular-magnetic-resonance-myocardial-feature-tracking-using-a-non-rigid-elastic-image-registration-algorithm-assessment-of-variability-in-a-real-life-clinical-setting
#2
Pedro Morais, Alberto Marchi, Julie A Bogaert, Tom Dresselaers, Brecht Heyde, Jan D'hooge, Jan Bogaert
BACKGROUND: Cardiovascular magnetic resonance myocardial feature tracking (CMR-FT) is a promising technique for quantification of myocardial strain from steady-state free precession (SSFP) cine images. We sought to determine the variability of CMR-FT using a non-rigid elastic registration algorithm recently available in a commercial software package (Segment, Medviso) in a real-life clinical setting. METHODS: Firstly, we studied the variability in a healthy volunteer who underwent 10 CMR studies over five consecutive days...
February 17, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28208195/echocardiography-in-the-risk-assessment-of-acute-pulmonary-embolism
#3
Talal Dahhan, Fawaz Alenezi, Zainab Samad, Sudarshan Rajagopal
Acute pulmonary embolism (PE) is a major cause of morbidity and mortality and is classified as massive (high risk), submassive (intermediate risk), or nonmassive (low risk) based on the hemodynamic status and clinical characteristics of the patient. At this time, the management of patients with submassive PE remains controversial and approaches for improving risk assessment are critical. In this review, we discuss several echocardiographic methods to assess right heart function that may aid in the risk assessment of patients with acute PE...
February 2017: Seminars in Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28204860/left-ventricular-systolic-dysfunction-during-septic-shock-the-role-of-loading-conditions
#4
Florence Boissier, Keyvan Razazi, Aurélien Seemann, Alexandre Bedet, Arnaud W Thille, Nicolas de Prost, Pascal Lim, Christian Brun-Buisson, Armand Mekontso Dessap
PURPOSE: The clinical significance of septic myocardial dysfunction is controversial, a fact that may be explained by the influence of loading conditions. Many indices may be useful to characterize cardiac function during septic shock, but their feasibility and physiological coherence in the clinical setting are unknown. METHODS: Hemodynamic and echocardiographic data with tissue Doppler and speckle tracking were prospectively recorded on the first 3 days of human septic shock...
February 15, 2017: Intensive Care Medicine
https://www.readbyqxmd.com/read/28199991/left-ventricular-longitudinal-strain-in-soccer-referees
#5
Luigi Gianturco, Bruno Bodini, Vincenzo Gianturco, Giuseppina Lippo, Agnese Solbiati, Maurizio Turiel
Along the years, the analysis of soccer referees perfomance has interested the experts and we can find several types of studies in literature using in particular cardiac imaging. The aim of this retrospective study was to observe relationship between VO2max uptake and some conventional and not-conventional echocardiographic parameters. In order to perform this evaluation, we have enrolled 20 referees, belonging to Italian Soccer Referees' Association and we have investigated cardiovascular profile of them. We found a strong direct relationship between VO2max and global longitudinal strain of left ventricle assessed by means of speckle tracking echocardiographic analysis (R2=0...
February 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28194841/impaired-left-ventricular-global-longitudinal-strain-in-patients-with-heart-failure-with-preserved-ejection-fraction-insights-from-the-relax-trial
#6
Adam D DeVore, Steven McNulty, Fawaz Alenezi, Mads Ersboll, Justin M Vader, Jae K Oh, Grace Lin, Margaret M Redfield, Gregory Lewis, Marc J Semigran, Kevin J Anstrom, Adrian F Hernandez, Eric J Velazquez
BACKGROUND: While abnormal left ventricular (LV) global longitudinal strain (GLS) has been described in patients with heart failure with preserved ejection fraction (HFpEF), its prevalence and clinical significance are poorly understood. METHODS AND RESULTS: Patients enrolled in the RELAX trial of sildenafil in HFpEF (LV ejection fraction ≥50%) in whom two-dimensional, speckle-tracking LV GLS was possible (n = 187) were analysed. The distribution of LV GLS and its associations with clinical characteristics, LV structure and function, biomarkers, exercise capacity and quality of life were assessed...
February 14, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28194472/right-ventricular-strain-as-predictor-of-pulmonary-complications-in-patients-with-femur-fracture
#7
Hyun-Jin Kim, Hyung-Bok Park, Yongsung Suh, Hyun-Sun Kim, Yoon-Hyeong Cho, Tae-Young Choi, Eui-Seok Hwang, Deok-Kyu Cho
BACKGROUND: Following femur fracture, medullary fat enters the systemic circulation and altered pulmonary haemodynamics may contribute to pulmonary complications. This study evaluated the association between right ventricular (RV) function and pulmonary complications in patients with femur fracture. METHODS: Patients with a femur fracture who had undergone pre-operative echocardiography that included RV peak global longitudinal strain (RV GLS) were evaluated retrospectively between March 2015 and February 2016...
February 1, 2017: Cardiovascular Journal of Africa
https://www.readbyqxmd.com/read/28191665/apical-left-ventricular-myocardial-dysfunction-is-an-early-feature-of-cardiac-involvement-in-myotonic-dystrophy-type-1
#8
Rodrigue Garcia, Quentin Labarre, Bruno Degand, Pierre Ingrand, François Le Gal, Benjamin Bonnet, Anne Delaubier, Claire Guillou, Barnabas Gellen, Damien Coisne, Claire Bouleti, Luc Christiaens
INTRODUCTION: Left ventricular (LV) dysfunction is a major prognostic determinant in myotonic dystrophy type 1 (DM1). Therefore, markers of early-stage LV impairment may be useful. The aim of this study was to evaluate 2D echocardiographic LV strain in a cohort of DM1 patients with preserved left ventricular ejection fraction (LVEF) and to compare the results with matched controls. METHODS: This prospective single-center study included 33 consecutive DM1 patients between February 2014 and February 2015...
February 13, 2017: Echocardiography
https://www.readbyqxmd.com/read/28191526/decreased-regional-left-ventricular-myocardial-strain-in-type-1-diabetic-children-a-first-sign-of-diabetic-cardiomyopathy
#9
Amir Hodzic, Virginie Ribault, Pascale Maragnes, Paul Milliez, Eric Saloux, Fabien Labombarda
BACKGROUND AND OBJECTIVES: Type 1 diabetes is a major cardiovascular risk factor associated with an excess of mortality in young adults due to premature cardiovascular events, which includes heart failure. The relation between type 1 diabetes and cardiac structure and function in children was poorly documented. Our study investigates (1) whether type 1 diabetic children have echocardiographic signs of subclinical cardiac dysfunction assessed by tissue Doppler strain and (2) whether state of metabolic control and diabetes duration have any influence on the cardiac event...
June 1, 2016: Journal of Translational Internal Medicine
https://www.readbyqxmd.com/read/28185312/reproducibility-and-experience-dependence-of-echocardiographic-indices-of-left-ventricular-function-side-by-side-comparison-of-global-longitudinal-strain-and-ejection-fraction
#10
Diego Medvedofsky, Kalie Kebed, Luke Laffin, Jeremy Stone, Karima Addetia, Roberto M Lang, Victor Mor-Avi
BACKGROUND: Although left ventricular (LV) ejection fraction (EF) and global longitudinal strain (GLS) are recommended by the current echocardiographic chamber quantification guidelines, these measurements are not performed routinely. Because EF measurements rely on manual tracing of LV boundaries, and are subject to inter-reader variability and experience dependence, we hypothesized that semiautomated GLS measurements using speckle tracking would be more reproducible and less experience-dependent...
February 9, 2017: Echocardiography
https://www.readbyqxmd.com/read/28168740/decreased-biventricular-longitudinal-strain-shortly-after-congenital-heart-defect-surgery
#11
Jonne M de Boer, Irene M Kuipers, Liselotte M Klitsie, Nico A Blom, Arend D J Ten Harkel
OBJECTIVE: Impaired ventricular performance in patients who underwent surgery for congenital heart defect (CHD) may ultimately result in clinical heart failure. It is therefore important to regularly evaluate the left ventricular (LV) and right ventricular (RV) performance. We evaluated tissue Doppler imaging (TDI) and speckle tracking echocardiography (STE) before and after surgical correction of a CHD. STUDY DESIGN: Patients with CHD undergoing biventricular corrective surgery were included in this retrospective study...
February 6, 2017: Echocardiography
https://www.readbyqxmd.com/read/28167498/myocardial-oxygen-consumption-and-efficiency-in-aortic-valve-stenosis-patients-with-and-without-heart-failure
#12
Nils Henrik Stubkjær Hansson, Jens Sörensen, Hendrik Johannes Harms, Won Yong Kim, Roni Nielsen, Lars P Tolbod, Jørgen Frøkiær, Kirsten Bouchelouche, Karen Kaae Dodt, Inger Sihm, Steen Hvitfeldt Poulsen, Henrik Wiggers
BACKGROUND: Myocardial oxygen consumption (MVO2) and its coupling to contractile work are fundamentals of cardiac function and may be involved causally in the transition from compensated left ventricular hypertrophy to failure. Nevertheless, these processes have not been studied previously in patients with aortic valve stenosis (AS). METHODS AND RESULTS: Participants underwent (11)C-acetate positron emission tomography, cardiovascular magnetic resonance, and echocardiography to measure MVO2 and myocardial external efficiency (MEE) defined as the ratio of left ventricular stroke work and the energy equivalent of MVO2...
February 6, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28163424/cardiac-magnetic-resonance-feature-tracking-in-kawasaki-disease-convalescence
#13
Konstantinos Bratis, Pauline Hachmann, Nicholas Child, Thomas Krasemann, Tarique Hussain, Sophie Mavrogeni, Rene Botnar, Reza Razavi, Gerald Greil
OBJECTIVE: The objective of this study was to determine whether left ventricular (LV) myocardial deformation indices can detect subclinical abnormalities in Kawasaki disease convalescence. We hypothesized that subclinical myocardial abnormalities due to inflammation represent an early manifestation of the disease that persists in convalescence. BACKGROUND: Myocardial inflammation has been described as a global finding in the acute phase of Kawasaki disease. Despite normal systolic function by routine functional measurements, reduced longitudinal strain and strain rate have been detected by echocardiography in the acute phase...
January 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28155065/left-atrial-strain-assessed-by-three-dimensional-speckle-tracking-echocardiography-predicts-atrial-fibrillation-recurrence-after-catheter-ablation-in-patients-with-paroxysmal-atrial-fibrillation
#14
Atsushi Mochizuki, Satoshi Yuda, Takefumi Fujito, Mina Kawamukai, Atsuko Muranaka, Daigo Nagahara, Shinya Shimoshige, Akiyoshi Hashimoto, Tetsuji Miura
BACKGROUND: Several studies have shown the utility of left atrial (LA) function determined by two-dimensional or three-dimensional speckle tracking echocardiography (2D- or 3D-STE) for identifying patients with paroxysmal atrial fibrillation (AF). However, whether 3D-STE is applicable for prediction of the recurrence of AF after catheter ablation (CA) remains unknown. We examined whether any 3D-STE parameters are better than 2D-STE parameters for the prediction of AF recurrence. METHODS: Forty-two patients with paroxysmal AF (58 ± 10 years old, 69% male) underwent 2D- and 3D-STE within 3 days before first-time CA...
February 2, 2017: Journal of Echocardiography
https://www.readbyqxmd.com/read/28151401/left-ventricular-structure-and-function-in-relation-to-environmental-exposure-to-lead-and-cadmium
#15
Wen-Yi Yang, Zhen-Yu Zhang, Lutgarde Thijs, Nicholas Cauwenberghs, Fang-Fei Wei, Lotte Jacobs, Aernout Luttun, Peter Verhamme, Tatiana Kuznetsova, Tim S Nawrot, Jan A Staessen
BACKGROUND: Experimental studies have demonstrated that lead and cadmium have direct toxic effects on the myocardium, but the few human studies are limited by design, assessment of exposure, and use of heart failure as a late-stage endpoint. METHODS AND RESULTS: In a prospective population study, we studied the association of left ventricular (LV) function with blood lead (BPb) and 24-hour urinary cadmium (UCd). In 179 participants randomly recruited from a Flemish population (50...
February 1, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28150084/value-of-three-dimensional-strain-parameters-for-predicting-left-ventricular-remodeling-after-st-elevation-myocardial-infarction
#16
Lin Xu, Xiaomin Huang, Jun Ma, Jiangming Huang, Yongwang Fan, Huidi Li, Jian Qiu, Heye Zhang, Wenhua Huang
This study was to evaluate the value of multi-directional strain parameters derived from three-dimensional (3D) speckle tracking echocardiography (STE) for predicting left ventricular (LV) remodeling after ST-elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention (PCI) compared with that of two-dimensional (2D) global longitudinal strain (GLS). A total of 110 patients (mean age, 54 ± 9 years) after STEMI treated with primary PCI were enrolled in our study. At baseline (within 24 h after PCI), standard 2D echocardiography, 2D STE and 3D STE were performed to acquire the conventional echocardiographic parameters and strain parameters...
February 1, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28150069/influence-of-gender-on-right-ventricle-adaptation-to-endurance-exercise-an-ultrasound-two-dimensional-speckle-tracking-stress-study
#17
Maria Sanz-de la Garza, Geneviève Giraldeau, Josefa Marin, Gonzalo Grazioli, Montserrat Esteve, Luigi Gabrielli, Carlos Brambila, Laura Sanchis, Bart Bijnens, Marta Sitges
BACKGROUND: Characteristic right ventricle (RV) remodelling is related to endurance exercise in male athletes (MAs), but data in female athletes (FAs) are scarce. Our aim was to evaluate sex-related influence on exercise-induced RV remodelling and on RV performance during exercise. METHODS: Forty endurance athletes (>10 training hours/week, 50% female) and 40 age-matched controls (<3 h moderate exercise/week, 50% female) were included. Echocardiography was performed at rest and at maximum cycle-ergometer effort...
February 1, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28146237/measuring-deformation-in-the-mouse-optic-nerve-head-and-peripapillary-sclera
#18
Cathy Nguyen, Dan Midgett, Elizabeth C Kimball, Matthew R Steinhart, Thao D Nguyen, Mary E Pease, Ericka N Oglesby, Joan L Jefferys, Harry A Quigley
Purpose: To develop an ex vivo explant system using multiphoton microscopy and digital volume correlation to measure the full-field deformation response to intraocular pressure (IOP) change in the peripapillary sclera (PPS) and in the optic nerve head (ONH) astrocytic structure. Methods: Green fluorescent protein (GFP)-glutamate transporter-GLT1 (GLT1/GFP) mouse eyes were explanted and imaged with a laser-scanning microscope under controlled inflation. Images were analyzed for regional strains and changes in astrocytic lamina and PPS shape...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28144259/variability-of-longitudinal-strain-in-left-ventricular-segments-supplied-by-non-stenosed-coronary-artery-insights-from-speckle-tracking-analysis-of-dobutamine-stress-echocardiograms-in-patients-with-high-coronary-risk-profile
#19
Karina Wierzbowska-Drabik, Michał Plewka, Jarosław D Kasprzak
INTRODUCTION: Although global deformation parameters have been increasingly used for myocardial function analysis, there are sparse data concerning segmental deformation of the left ventricle (LV). Moreover, some studies suggest heterogeneity of strain among LV segments, which may be especially significant during stress echocardiography. We assessed quantitatively regional LV function in the setting of dobutamine stress echocardiography (DSE), to examine differences of longitudinal strain between basal, mid and apical LV segments and to compare variability of regional deformation between rest and the peak stage of DSE...
February 1, 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28140649/effects-of-a-combination-of-acepromazine-maleate-and-butorphanol-tartrate-on-conventional-and-two-dimensional-speckle-tracking-echocardiography-in-healthy-dogs
#20
Giorgia Santarelli, Jesús Talavera López, Josefa Fernández Del Palacio
OBJECTIVE To determine effects of a combination of acepromazine maleate and butorphanol tartrate on conventional echocardiographic variables and on strain values obtained by use of 2-D speckle tracking echocardiography (STE) in healthy dogs. ANIMALS 18 healthy medium- and large-size adult dogs. PROCEDURES Transthoracic echocardiographic examination (2-D, M-mode, color flow, spectral Doppler, and tissue Doppler ultrasonography) and high-definition oscillometric blood pressure measurement were performed before and after dogs were sedated by IM administration of a combination of acepromazine (0...
February 2017: American Journal of Veterinary Research
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