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Global longitudinal strain

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https://www.readbyqxmd.com/read/28528164/mri-derived-myocardial-strain-measures-in-normal-subjects
#1
Ha Q Vo, Thomas H Marwick, Kazuaki Negishi
OBJECTIVES: The aim of this study was to perform a systematic review and meta-analysis to estimate the normal ranges of magnetic resonance imaging (MRI)-based feature tracking (FT) and to identify sources of variations. Similar analyses were also performed for strain encoding, displacement encoding with stimulated echoes, and myocardial tagging. BACKGROUND: MRI-FT is a novel technique for quantification of myocardial deformation using MRI cine images. However, the reported 95% confidence intervals (CIs) from the 2 largest studies have no overlaps...
May 11, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28528161/functional-implication-of-mitral-annular-disjunction-in-mitral-valve-prolapse-a-quantitative-dynamic-3d-echocardiographic%C3%A2-study
#2
Alex Pui-Wai Lee, Chun-Na Jin, Yiting Fan, Randolph H L Wong, Malcolm J Underwood, Song Wan
OBJECTIVES: This study aimed to assess the hypothesis that mitral annular disjunction (MAD) is associated with abnormal annular dynamics due to decoupling of annular-ventricular function. BACKGROUND: MAD, defined as a separation between the atrial wall-mitral valve (MV) junction and left ventricular (LV) attachment, is a structural abnormality occurring in MV prolapse (MVP). Few data exist on the 3-dimensional (3D) geometry of MAD and its functional implication...
May 11, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28528147/variability-and-reproducibility-of-segmental%C3%A2-longitudinal-strain-measurement-a-report-from-the-eacvi-ase-strain-standardization-task%C3%A2-force
#3
Oana Mirea, Efstathios D Pagourelias, Jurgen Duchenne, Jan Bogaert, James D Thomas, Luigi P Badano, Jens-Uwe Voigt
OBJECTIVES: In this study, we compared left ventricular (LV) segmental strain measurements obtained with different ultrasound machines and post-processing software packages. BACKGROUND: Global longitudinal strain (GLS) has proven to be a reproducible and valuable tool in clinical practice. Data about the reproducibility and intervendor differences of segmental strain measurements, however, are missing. METHODS: We included 63 volunteers with cardiac magnetic resonance-proven infarct scar with segmental LV function ranging from normal to severely impaired...
May 12, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28526545/obstructive-sleep-apnoea-and-right-ventricular-function-a-combined-assessment-by-speckle-tracking-and-three-dimensional-echocardiography
#4
Agostino Buonauro, Maurizio Galderisi, Ciro Santoro, Angelo Canora, Maria Luisa Bocchino, Francesco Lo Iudice, Maria Lembo, Roberta Esposito, Sabrina Castaldo, Bruno Trimarco, Alessandro Sanduzzi
BACKGROUND: Little is known on right ventricular (RV) involvement in obstructive sleep apnoea (OSA). This study aimed at evaluating early RV dysfunction by standard and advanced echocardiography in OSA. METHODS: Fifty-nine OSA patients without heart failure and 29 age-matched controls underwent standard, speckle tracking and real time 3D echocardiography of right ventricle. OSA patients performed lung function tests and overnight cardio-respiratory monitoring with evaluation of apnea-hypopnea index (AHI)...
May 4, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28522755/increased-left-ventricular-extracellular-volume-and-enhanced-twist-function-in-type-1-diabetic-individuals
#5
Zainisha Vasanji, Ronald J Sigal, Neil Derek Eves, Debra L Isaac, Matthias G Friedrich, Kelvin Chow, Richard B Thompson
Individuals with type 1 diabetes (T1D) characteristically have high glycemic levels that over time can result in reactive fibrosis and abnormalities in myocardial function. T1 mapping with magnetic resonance imaging (MRI) can estimate the extent of reactive fibrosis by measurement of the extracellular volume fraction (ECV). The extent of alterations in the ECV and associated changes in left ventricular (LV) function and morphology in individuals with T1D is unknown. Fourteen individuals with long-term T1D and fourteen sex-, age-, and body mass index-matched controls without diabetes underwent MRI measurement of myocardial T1 and ECV values as well as LV function and morphology...
May 18, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28516313/dynamic-changes-in-aortic-impedance-after-transcatheter-aortic-valve-replacement-and-its-impact-on-exploratory-outcome
#6
Yukari Kobayashi, Juyong B Kim, Kegan J Moneghetti, Yuhei Kobayashi, Ran Zhang, Daniel A Brenner, Ryan O'Malley, Ingela Schnittger, Michael Fischbein, D Craig Miller, Alan C Yeung, David Liang, Francois Haddad, William F Fearon
Valvulo-arterial impedance (Zva) has been shown to predict worse outcome in medically managed aortic stenosis (AS) patients. We aimed to investigate the association between Zva and left ventricular (LV) adaptation and to explore the predictive value of Zva for cardiac functional recovery and outcome after transcatheter aortic valve replacement (TAVR). We prospectively enrolled 128 patients with AS who underwent TAVR. Zva was calculated as: (systolic blood pressure + mean transaortic gradient)/stroke volume index)...
May 17, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28515855/speckle-tracking-echocardiography-to-assess-regional-ventricular-function-in-patients-with-apical-hypertrophic-cardiomyopathy
#7
María Cristina Saccheri, Tomás Francisco Cianciulli, Luis Alberto Morita, Ricardo José Méndez, Martín Alejandro Beck, Juan Enrique Guerra, Alberto Cozzarin, Luciana Jimena Puente, Lorena Romina Balletti, Jorge Alberto Lax
AIM: To explore regional systolic strain of midwall and endocardial segments using speckle tracking echocardiography in patients with apical hypertrophic cardiomyopathy (HCM). METHODS: We prospectively assessed 20 patients (mean age 53 ± 16 years, range: 18-81 years, 10 were male), with apical HCM. We measured global longitudinal peak systolic strain (GLPSS) in the midwall and endocardium of the left ventricle. RESULTS: The diastolic thickness of the 4 apical segments was 16...
April 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28513231/left-atrial-mechanical-function-and-stiffness-in-patients-with-nondipper-hypertension-a-speckle-tracking-study
#8
Mehmet Demir, İbrahim Aktaş, Ahmet Yıldırım
BACKGROUND: Nondipper hypertension is associated with increased cardiovascular morbidity and mortality. Speckle tracking echocardiography is a novel and promising tool for detecting early changes in left atrial (LA) myocardial dysfunction. Our aim was to evaluate the LA mechanical function and stiffness in nondipper hypertensive patients by two-dimensional speckle tracking echocardiography strain parameters. METHOD: This study included 80 hypertensive patients. Hypertensive patients were divided into two groups: 50 dipper patients (29 male, mean age 51...
May 17, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28509760/global-longitudinal-strain-predicts-outcome-after-mitraclip-implantation-for-secondary-mitral-regurgitation
#9
Rodolfo Citro, Cesare Baldi, Patrizio Lancellotti, Angelo Silverio, Gennaro Provenza, Michele Bellino, Michele R Di Muro, Generoso Mastrogiovanni, Roberta De Rosa, Gennaro Galasso, Eduardo Bossone, Pietro Giudice, Federico Piscione
AIM: The aim of this study was to assess preoperative determinants, prevalence, and prognostic impact of left ventricular (LV) reverse remodeling (LVRR) in patients with secondary mitral regurgitation (SMR), undergoing MitraClip implantation (MCi). METHODS: From March 2012 to January 2015, a total of 41 consecutive patients with moderate-to-severe SMR treated successfully with MCi were enrolled. All patients underwent clinical and echocardiographic follow-up after MCi...
May 13, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28497844/echocardiographic-evaluation-of-right-ventricular-systolic-function-the-traditional-and-innovative-approach
#10
Dorota Smolarek, Marcin Gruchała, Wojciech Sobiczewski
Estimation of right ventricular (RV) performance still remains technically challenging due to its anatomical and functional distinctiveness. The current guidelines for the echocardiographic quantification of RV function recommend using multiple indices to describe the RV in a thorough and comprehensive manner, such as RV index of myocardial performance, tricuspid annular plane systolic excursion, fractional area change, Doppler tissue imaging-derived tricuspid lateral annular systolic velocity (S'-wave), three-dimensional RV ejection fraction (3D RVEF), longitudinal strain (RVLS)/strain rate by speckle-tracking echocardiography (STE)...
May 12, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28495953/cardiometabolic-traits-and-systolic-mechanics-in-the-community
#11
Jennifer E Ho, Elizabeth L McCabe, Thomas J Wang, Martin G Larson, Daniel Levy, Connie Tsao, Jayashri Aragam, Gary F Mitchell, Emelia J Benjamin, Ramachandran S Vasan, Susan Cheng
BACKGROUND: Obesity and cardiometabolic dysfunction are associated with increased risk of heart failure and other cardiovascular diseases. We sought to examine the association of cardiometabolic traits with left ventricular (LV) cardiac mechanics. We hypothesized that specific obesity-related phenotypes are associated with distinct aspects of LV strain. METHODS AND RESULTS: We evaluated the associations of obesity-related phenotypes, including central adiposity, diabetes mellitus, insulin resistance, and circulating adipokine concentrations with echocardiographic measures of LV mechanical function among participants of the Framingham Heart Study Offspring and Third Generation cohorts...
May 2017: Circulation. Heart Failure
https://www.readbyqxmd.com/read/28493996/left-ventricular-functional-structural-and-energetic-effects-of-normal-aging-comparison-with-hypertension
#12
Jehill D Parikh, Kieren G Hollingsworth, Dorothy Wallace, Andrew M Blamire, Guy A MacGowan
OBJECTIVES: Both aging and hypertension are significant risk factors for heart failure in the elderly. The purpose of this study was to determine how aging, with and without hypertension, affects left ventricular function. METHODS: Cross-sectional study of magnetic resonance imaging and 31P spectroscopy-based measurements of left ventricular structure, global function, strains, pulse wave velocity, high energy phosphate metabolism in 48 normal subjects and 40 treated hypertensive patients (though no other cardiovascular disease or diabetes) stratified into 3 age deciles from 50-79 years...
2017: PloS One
https://www.readbyqxmd.com/read/28490455/speckle-tracking-echocardiography-in-acute-lupus-myocarditis-comparison-to-conventional-echocardiography
#13
Riëtte du Toit, Phillip G Herbst, Annari van Rensburg, Hendrik W Snyman, Helmuth Reuter, Anton F Doubell
AIMS: Lupus myocarditis occurs in 5-10% of patients with systemic lupus erythematosus (SLE). No single feature is diagnostic of lupus myocarditis. Speckle tracking echocardiography (STE) can detect sub-clinical left ventricular dysfunction in SLE patients, with limited research on its utility in clinical lupus myocarditis. We report on STE in comparison to conventional echocardiography in patients with clinical lupus myocarditis. METHODS AND RESULTS: A retrospective study was done at a tertiary referral hospital in South Africa...
May 10, 2017: Echo Research and Practice
https://www.readbyqxmd.com/read/28488096/improving-risk-assessment-for-post-surgical-low-cardiac-output-syndrome-in-patients-without-severely-reduced-ejection-fraction-undergoing-open-aortic-valve-replacement-the-role-of-global-longitudinal-strain-and-right-ventricular-free-wall-strain
#14
K Balderas-Muñoz, H Rodríguez-Zanella, J F Fritche-Salazar, N Ávila-Vanzzini, L E Juárez Orozco, J A Arias-Godínez, O Calvillo-Argüelles, S Rivera-Peralta, J C Sauza-Sosa, M E Ruiz-Esparza, E Bucio-Reta, A Rómero, N Espinola-Zavaleta, B Domínguez-Mendez, M Gaxiola-Macias, M A Martínez-Ríos
Low cardiac output syndrome (LCOS) after surgical aortic valve replacement (SAVR) is related to increased mortality and treatment related costs. We aimed to evaluate whether echocardiography-derived left ventricular global longitudinal strain (LV-GLS) relates to the occurrence of postoperative LCOS in patients undergoing SAVR. We prospectively enrolled 75 patients with symptomatic severe aortic stenosis, left ventricular ejection fraction (LVEF) >40%, NYHA Class <IV, without other significant valve disease...
May 9, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28481994/risk-factors-for-the-development-of-right-ventricular-failure-after-left-ventricular-assist-device-implantation-a-single-centre-retrospective-with-focus-on-deformation-imaging%C3%A2
#15
Nadia Boegershausen, Rashad Zayat, Ali Aljalloud, Giulia Musetti, Andreas Goetzenich, Lachmandath Tewarie, Ajay Moza, Andrea Amerini, Rüdiger Autschbach, Nima Hatam
OBJECTIVES: Right heart failure (RHF) after the implantation of a left ventricular assist device (LVAD) remains a dreaded postoperative complication. Using 2D speckle-tracking echocardiography, it is possible to acquire right ventricular global and regional function. The aim of our study was to assess whether speckle-tracking echocardiography values will better predict the RHF post-continuous-flow LVAD implantation. METHODS: From January 2014 to January 2016, 54 patients who underwent LVAD implantation were included and retrospectively analysed...
May 8, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28479093/right-ventriculo-arterial-coupling-assessed-by-two-dimensional-strain-a-new-parameter-of-right-ventricular-function-independently-associated-with-prognosis-in-chronic-heart-failure-patients
#16
Massimo Iacoviello, Francesco Monitillo, Gaetano Citarelli, Marta Leone, Dario Grande, Valeria Antoncecchi, Caterina Rizzo, Paola Terlizzese, Roberta Romito, Pasquale Caldarola, Marco Matteo Ciccone
AIM OF THE STUDY: To evaluate whether right ventriculo-arterial coupling obtained by the estimation of the two-dimensional right ventricular (RV) longitudinal strain and of the pulmonary arterial systolic pressure (PASP) could improve prognostic stratification of chronic heart failure (CHF) outpatients. METHODS: CHF outpatients in a stable clinical condition and in conventional therapy were enrolled. The global RV longitudinal strain (RV-GLS) and the strain of the RV free wall (RV-fwLS) were evaluated...
May 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28476315/association-of-the-active-and-passive-components-of-left-atrial-deformation-with-left-ventricular-function
#17
Satish Ramkumar, Hong Yang, Ying Wang, Mark Nolan, Tomoko Negishi, Kazuaki Negishi, Thomas H Marwick
BACKGROUND: Left atrial (LA) strain imaging enables the quantitative assessment of LA function. The clinical relevance of these measurements is dependent on the provision of information incremental to the left ventricular (LV) evaluation. The aim of this study was to test the hypothesis that LA pump function but not reservoir function is independent of measurement of LV mechanics. METHODS: Echocardiography was undertaken in a community-based study of 576 participants ≥65 years of age with one or more risk factors (e...
May 2, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28471536/assessment-of-subtle-cardiac-dysfunction-in-patients-with-frequent-premature-ventricular-complexes-by-real-time-three-dimensional-speckle-tracking-echocardiography
#18
Yunlong Ling, Quan Wan, Qingxing Chen, Wenqing Zhu
BACKGROUND: To evaluate subtle and early premature ventricular complex (PVC)-induced ventricular impairment in patients with frequent PVCs and without structural heart disease by real-time 3-dimensional (3D) speckle tracking echocardiography (RT3D-STE). HYPOTHESIS: Patients with frequent premature ventricular complexes with normal left ventricular ejection fraction have subtle left ventricular dysfunction. METHODS: Forty patients (22 male) with a single source of frequent PVCs and 40 healthy controls (24 male) underwent assessment by conventional 2-dimensional (2D) echocardiography and RT3D-STE...
May 4, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28466016/evaluation-of-subclinical-left-ventricular-systolic-dysfunction-in-chronic-asymptomatic-alcoholics-by-speckle-tracking-echocardiography
#19
Murathan Kucuk, Can Ramazan Oncel, Aytul Belgi Yıldırım, Fatih Canan, Mehmet Murat Kuloglu
By using two-dimensional speckle tracking echocardiography, we aimed to investigate the structural and functional changes on myocardium in chronic asymptomatic alcoholics without any cardiovascular disease. Forty-one consecutive asymptomatic male alcoholics who were admitted to the outpatient alcoholism unit and 30 age matched healthy male volunteers selected as the control group were enrolled in the study. The study group were investigated by using standard two-dimensional echocardiography and speckle tracking echocardiography...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28456833/relationship-between-fragmented-qrs-complexes-and-cardiac-status-in-duchenne-muscular-dystrophy-multimodal-validation-using-echocardiography-magnetic-resonance-imaging-and-holter-monitoring
#20
Min-Jung Cho, Ji-Won Lee, JeSang Lee, Yong Bum Shin, Hyoung Doo Lee
The presence of fragmented QRS is a known marker of heterogeneous ventricular activation around the myocardial scar area. We validated whether fragmented QRS shows any association with ventricular dysfunction, fibrosis, or ventricular arrhythmias in patients with Duchenne muscular dystrophy (DMD). Thirty-seven patients with DMD were evaluated using electrocardiography (ECG), echocardiography, cardiac magnetic resonance, and 24-h Holter monitoring. Associations between fragmented QRS and ventricular dysfunction, fibrosis, or ventricular arrhythmia were investigated...
April 29, 2017: Pediatric Cardiology
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