keyword
MENU ▼
Read by QxMD icon Read
search

Strain myocardial

keyword
https://www.readbyqxmd.com/read/28339702/subclinical-chronic-left-ventricular-systolic-dysfunction-resulting-from-phosphine-poisoning
#1
E Szymczyk, M Wiszniewska, J Walusiak-Skorupa, J D Kasprzak, P Lipiec
We present a case of a 32-year-old male crew member of a cargo ship, accidentally exposed to phosphine, a fumigating substance. He and other crew members developed increasing fatigue and digestive disorders 24 h later; two died from acute pulmonary oedema. The patient was admitted to hospital, where bilateral pneumonia, acute nephritis, hepatopathy, electrolyte imbalance and leucopenia were diagnosed. He was discharged from hospital 3 weeks later. He was examined 4 months later for possible chronic consequences of acute phosphine poisoning, which included echocardiography showing normal heart size and cardiac function...
February 21, 2017: Occupational Medicine
https://www.readbyqxmd.com/read/28338005/the-association-between-diffuse-myocardial-fibrosis-on-cardiac-magnetic-resonance-t1-mapping-and-myocardial-dysfunction-in-diabetic-rabbits
#2
Mu Zeng, Yingyan Qiao, Zhaoying Wen, Jun Liu, Enhua Xiao, Changlian Tan, Yibin Xie, Jing An, Zishu Zhang, Zhanming Fan, Debiao Li
The objective of this study was to assess the relationship between imaging surrogates for diffuse fibrosis and myocardial dysfunction. Thirty-six New Zealand white rabbits were classified into two groups: a control group (n = 18) and an alloxan-induced diabetes mellitus (DM) group (n = 18). For all rabbits, conventional ultrasonography, two-dimensional speckle tracking, and cardiac magnetic resonance (CMR) T1 mapping were performed; all of the rabbits were then sacrificed for Masson's staining. The extracellular volume (ECV) was calculated from pre- and post-contrast T1 values and compared with myocardial function measured by echocardiography using Pearson's correlation...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28335982/comparison-of-displacement-encoding-with-stimulated-echoes-to-magnetic-resonance-feature-tracking-for-the-assessment-of-myocardial-strain-in-patients-with-acute-myocardial-infarction
#3
Yoshitaka Goto, Masaki Ishida, Shinichi Takase, Andreas Sigfridsson, Mio Uno, Motonori Nagata, Yasutaka Ichikawa, Kakuya Kitagawa, Hajime Sakuma
The aim of this study was to compare myocardial strain by cardiovascular magnetic resonance feature tracking (CMR-FT) to those derived from displacement encoding with stimulated echoes (DENSE) in patients with acute myocardial infarction (AMI). Twenty patients (65 pa13 years) with AMI underwent cine, DENSE, black-blood T2-weighted and late gadolinium enhancement CMR at 1.5 T. Global and segmental strain was determined by CMR-FT analysis and DENSE on matched 3 short-axis planes. Global circumferential strain by CMR-FT showed a good agreement with that by DENSE (r = 0...
February 28, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28334029/prognostic-power-of-global-2d-strain-according-to-left-ventricular-ejection-fraction-in-patients-with-st-elevation-myocardial-infarction
#4
Myung-Jin Cha, Hyun-Sook Kim, Seong Hwan Kim, Jae-Hyeong Park, Goo-Yeong Cho
BACKGROUNDS: We aimed to evaluate the predictive power of longitudinal and circumferential fibers according to left ventricular ejection fraction (LVEF) in successfully reperfused acute ST elevation myocardial infarction (STEMI) patients. METHODS: Total 691 patients (age 59±13, 20% female) underwent clinical evaluation and conventional and strain echocardiography (Global longitudinal strain (GLS), global circumferential strain (GCS)). The clinical outcome was defined as the composite of death, hospitalization for heart failure, non-fatal myocardial infarction, and ventricular arrhythmia...
2017: PloS One
https://www.readbyqxmd.com/read/28332218/changes-in-myocardial-deformation-after-transcatheter-and-surgical-aortic-valve-replacement
#5
REVIEW
Vinisha Garg, Jonathan K Ho, Gabriel Vorobiof
Speckle tracking echocardiography (STE) has emerged as a novel angle-independent modality in assessing myocardial velocity, deformation, and strain. Its role in assessing change before and after aortic valve replacement in patients with aortic stenosis (AS) has recently generated interest. This review summarizes the practical utility and clinical implications of myocardial deformation by STE after surgical or transcatheter aortic valve replacement (TAVR). Overall, atrial strain and ventricular strain as measured by STE improve after surgical and transcatheter aortic intervention in short- and long-term follow-up with evidence of a more pronounced acute improvement in patients who undergo TAVR...
March 23, 2017: Echocardiography
https://www.readbyqxmd.com/read/28332215/effects-of-increased-left-ventricular-wall-thickness-on-the-myocardium-in-severe-aortic-stenosis-with-normal-left-ventricular-ejection-fraction-two-and-three-dimensional-multilayer-speckle-tracking-echocardiography
#6
Eun Jeong Cho, Sung-Ji Park, Eun Kyoung Kim, Ga Yeon Lee, Sung-A Chang, Jin-Oh Choi, Sang-Chol Lee, Seung Woo Park
BACKGROUND: The aim of this study was to determine the capability of real time three-dimensional echocardiography (RT3DE) and two-dimensional (2D) multilayer speckle tracking echocardiography (MSTE) for evaluation of early myocardial dysfunction triggered by increased left ventricular (LV) wall thickness in severe aortic stenosis (AS) with normal LV ejection fraction (EF≥55%). METHODS: Conventional, RT3D STE and 2D MSTE were performed in 45 patients (mean 68.9±9...
March 23, 2017: Echocardiography
https://www.readbyqxmd.com/read/28327874/left-atrial-deformation-analysis-in-patients-with-corrected-tetralogy-of-fallot-by-3d-speckle-tracking-echocardiography-from-the-magyar-path-study
#7
Kálmán Havasi, Péter Domsik, Anita Kalapos, Jackie S McGhie, Jolien W Roos-Hesselink, Tamás Forster, Attila Nemes
Background: Three-dimensional (3D) echocardiography coupled with speckle-tracking echocardiographic (STE) capability is a novel methodology which has been demontrated to be useful for the assessment of left atrial (LA) volumes and functional properties. There is increased scientific interest on myocardial deformation analysis in adult patients with corrected tetralogy of Fallot (cTOF). Objectives: To compare LA volumes, volume-based functional properties and strain parameters between cTOF patients and age- and gender-matched healthy controls...
February 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28325672/new-parameter-derived-from-three-dimensional-speckle-tracking-echocardiography-for-the-estimation-of-left-ventricular-filling-pressure-in-nondilated-hearts
#8
Daisuke Sakurai, Toshihiko Asanuma, Kasumi Masuda, Hikaru Koriyama, Satoshi Nakatani
BACKGROUND: E/e' is clinically useful for the noninvasive assessment of left ventricular (LV) filling pressure. However, its use in some conditions is controversial, and angle dependence of the Doppler measurement and preload dependence of mitral e' in nondilated hearts represent major problems. The ratio of early filling rate derived from the time derivative of LV volume to early diastolic strain rate (FRe/SRe), similar to E/e', by three-dimensional (3D) speckle-tracking echocardiography has the potential to address such limitations...
March 18, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28322009/prognostic-importance-of-left-ventricular-mechanical-dyssynchrony-in-heart-failure-with-preserved-ejection-fraction
#9
Tor Biering-Sørensen, Sanjiv J Shah, Inder Anand, Nancy Sweitzer, Brian Claggett, Li Liu, Bertram Pitt, Marc A Pfeffer, Scott D Solomon, Amil M Shah
AIMS: Left ventricular mechanical dyssynchrony has been described in heart failure with preserved ejection fraction (HFpEF), but its prognostic significance is not known. METHODS AND RESULTS: Of 3445 patients with HFpEF enrolled in the Treatment of Preserved Cardiac Function Heart Failure with an Aldosterone Antagonist (TOPCAT) trial, dyssynchrony analysis was performed on 424 patients (12%) by multiple speckle tracking echocardiography strain-based criteria. The primary dyssynchrony analysis was the standard deviation of the time to peak longitudinal strain (SD T2P LS)...
March 21, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28321684/left-ventricular-flow-propagation-velocity-measurement-is-it-cast-in-stone
#10
Bee Ting Chan, Hak Koon Yeoh, Yih Miin Liew, Yang Faridah Abdul Aziz, Ganiga Srinivasaiah Sridhar, Christian Hamilton-Craig, David Platts, Einly Lim
This study aims to investigate the measurement of left ventricular flow propagation velocity, V p, using phase contrast magnetic resonance imaging and to assess the discrepancies resulting from inflow jet direction and individual left ventricular size. Three V p measuring techniques, namely non-adaptive (NA), adaptive positions (AP) and adaptive vectors (AV) method, were suggested and compared. We performed the comparison on nine healthy volunteers and nine post-infarct patients at four measurement positions, respectively, at one-third, one-half, two-thirds and the conventional 4 cm distances from the mitral valve leaflet into the left ventricle...
March 20, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/28321681/machine-learning-of-the-spatio-temporal-characteristics-of-echocardiographic-deformation-curves-for-infarct-classification
#11
Mahdi Tabassian, Martino Alessandrini, Lieven Herbots, Oana Mirea, Efstathios D Pagourelias, Ruta Jasaityte, Jan Engvall, Luca De Marchi, Guido Masetti, Jan D'hooge
The aim of this study was to analyze the whole temporal profiles of the segmental deformation curves of the left ventricle (LV) and describe their interrelations to obtain more detailed information concerning global LV function in order to be able to identify abnormal changes in LV mechanics. The temporal characteristics of the segmental LV deformation curves were compactly described using an efficient decomposition into major patterns of variation through a statistical method, called Principal Component Analysis (PCA)...
March 20, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28321497/intra-procedural-determination-of-viability-by-myocardial-deformation-imaging-a-randomized-prospective-study-in-the-cardiac-catheter-laboratory
#12
Alexander Schuh, Vadim Karayusuf, Ertunc Altiok, Sandra Hamada, Jörg Schröder, Andras Keszei, Malte Kelm, Matias de la Fuente, Michael Frick, Klaus Radermacher, Nikolaus Marx, Michael Becker
BACKGROUND: The benefit of revascularization for functional recovery depends on the presence of viable myocardial tissue. OBJECTIVE: Myocardial deformation imaging allows determination of myocardial viability. METHODS: In a first approach, we assessed the optimal cutoff value to determine preserved viability by layer-specific echocardiographic myocardial deformation imaging at rest and low-dose dobutamine (DSE) echocardiography: regional endocardial circumferential strain (eCS) <-19% at rest was as accurate as eCS at DSE...
March 20, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28320997/prognostic-impact-of-diastolic-wall-strain-in-patients-at-risk-for-heart-failure
#13
Masatoshi Minamisawa, Takashi Miura, Hirohiko Motoki, Yasushi Ueki, Kunihiko Shimizu, Wataru Shoin, Mikiko Harada, Tomoaki Mochidome, Koji Yoshie, Yasutaka Oguchi, Naoto Hashizume, Hitoshi Nishimura, Naoyuki Abe, Soichiro Ebisawa, Atsushi Izawa, Jun Koyama, Uichi Ikeda
Diastolic wall strain (DWS) is based on the linear elastic theory, according to which decreased wall thinning during diastole reflects reduced left ventricular compliance and thus increased diastolic stiffness. Increased diastolic stiffness as assessed by DWS is associated with a worse prognosis in patients who have heart failure (HF) with preserved ejection fraction. However, there are no data about the prognostic value of DWS derived by M-mode echocardiography in patients at risk for HF. We retrospectively enrolled 1829 consecutive patients without prior HF who were hospitalized for cardiovascular (CV) diseases in our hospital between 2005 and 2012...
March 21, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28319168/targeting-chronic-cardiac-remodeling-with-cardiac-progenitor-cells-in-a-murine-model-of-ischemia-reperfusion-injury
#14
Janine C Deddens, Dries A Feyen, Peter-Paul Zwetsloot, Maike A Brans, Sailay Siddiqi, Linda W van Laake, Pieter A Doevendans, Joost P Sluijter
BACKGROUND: Translational failure for cardiovascular disease is a substantial problem involving both high research costs and an ongoing lack of novel treatment modalities. Despite the progress already made, cell therapy for chronic heart failure in the clinical setting is still hampered by poor translation. We used a murine model of chronic ischemia/reperfusion injury to examine the effect of minimally invasive application of cardiac progenitor cells (CPC) in cardiac remodeling and to improve clinical translation...
2017: PloS One
https://www.readbyqxmd.com/read/28317170/added-clinical-value-of-applying-myocardial-deformation-imaging-to-assess-right-ventricular-function
#15
REVIEW
Vladislavs Sokalskis, Diletta Peluso, Annika Jagodzinski, Christoph Sinning
Right heart dysfunction has been found to be a strong prognostic factor predicting adverse outcome in various cardiopulmonary diseases. Conventional echocardiographic measurements can be limited by geometrical assumptions and impaired reproducibility. Speckle tracking-derived strain provides a robust quantification of right ventricular function. It explicitly evaluates myocardial deformation, as opposed to tissue Doppler-derived strain, which is computed from tissue velocity gradients. Right ventricular longitudinal strain provides a sensitive tool for detecting right ventricular dysfunction, even at subclinical levels...
March 19, 2017: Echocardiography
https://www.readbyqxmd.com/read/28317158/left-ventricular-hypertrophy-or-storage-disease-the-incremental-value-of-speckle-tracking-strain-bull-s-eye
#16
REVIEW
Antonello D'Andrea, Juri Radmilovic, Piercarlo Ballo, Donato Mele, Eustachio Agricola, Matteo Cameli, Andrea Rossi, Roberta Esposito, Giuseppina Novo, Sergio Mondillo, Roberta Montisci, Sabina Gallina, Eduardo Bossone, Maurizio Galderisi
Left ventricular hypertrophy (LVH) develops in response to a variety of physical, genetic, and biochemical stimuli and represents the early stage of ventricular remodeling. In patients with LVH, subclinical left ventricular (LV) dysfunction despite normal ejection fraction (EF) may be present before the onset of symptoms, which portends a dismal prognosis. Strain measurement with two-dimensional speckle tracking echocardiography (STE) represents a highly reproducible and accurate alternative to LVEF determination...
March 19, 2017: Echocardiography
https://www.readbyqxmd.com/read/28315942/forgotten-right-ventricle-in-pediatric-dilated-cardiomyopathy
#17
Hala Mounir Agha, Hossam Ibrahim, Inas Abd El Satar, Naglae Abd El Rahman, Doaa Abd El Aziz, Zeinab Salah, Sonia El Saeidi, Fatma Mostafa, Wael Attia, Mohamed Abd El Rahman, Gaser Abd El Mohsen
To evaluate the right ventricular (RV) function in relation to that of the left ventricle (LV) in patients with dilated cardiomyopathy (DCM). Echocardiographic examination was done using tissue Doppler imaging (TDI) and two-dimensional speckle tracking echocardiography (2D-STE) for 32 pediatric patients with DCM comparing them to another 32 normal matched controls. The global longitudinal strain (GLS) derived from 2D-STE was used to reflect the LV systolic function. Tricuspid annular plan systolic excursion (TAPSE) and the following RV TDI derived indexes: peak systolic velocity (S'), peak early diastolic velocity E', peak late diastolic velocity A', isovolumic acceleration (IVA) and myocardial performance index (MPI) were measured...
March 18, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28314836/safe-heart-rationale-and-design-of-a-pilot-study-investigating-cardiac-safety-of-her2-targeted-therapy-in-patients-with-her2-positive-breast-cancer-and-reduced-left-ventricular-function
#18
Filipa Lynce, Ana Barac, Ming T Tan, Federico M Asch, Karen L Smith, Chau Dang, Claudine Isaacs, Sandra M Swain
BACKGROUND: Human epidermal growth receptor 2 (HER2) targeted therapies have survival benefit in adjuvant and metastatic HER2 positive breast cancer but are associated with cardiac dysfunction. Current U.S. Food and Drug Administration recommendations limit the use of HER2 targeted agents to patients with normal left ventricular (LV) systolic function. METHODS: The objective of the SAFE-HEaRt study is to evaluate the cardiac safety of HER2 targeted therapy in patients with HER2 positive breast cancer and mildly reduced left ventricular ejection fraction (LVEF) with optimized cardiac therapy...
March 17, 2017: Oncologist
https://www.readbyqxmd.com/read/28314078/high-physical-fitness-is-associated-with-reduction-in-basal-and-exercise-induced-inflammation
#19
Øyunn Kleiven, Magnus Bjørkavoll-Bergseth, Tor Melberg, Øyvind Skadberg, Rolf Bergseth, Jone Selvåg, Bjørn Auestad, Pål Aukrust, Torbjørn Aarsland, Stein Ørn
C-reactive protein (CRP) increases after strenuous exercise. It has been a concern that prolonged strenuous exercise may be harmful, and induce a deleterious inflammatory response. The purpose of this study was to 1) Assess and quantify the magnitude of CRP response following an endurance cycling competition in healthy middle-aged recreational cyclists. 2) Identify important determinants of this response. 3) Identify the relationship between CRP, myocardial damage (cardiac Troponin I (cTnI)) and myocardial strain (B-type natriuretic peptide (BNP))...
March 17, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28302319/high-sensitivity-cardiac-troponin-t-and-systemic-right-ventricular-function-in-adults-with-congenitally-corrected-transposition-of-the-great-arteries
#20
Ewa Kowalik, Anna Klisiewicz, Justyna Rybicka, Elżbieta K Biernacka, Piotr Hoffman
BACKGROUND: High sensitive troponin T (hsTnT), a marker of myocardial injury, appears to be a promising diagnostic tool in patients with congenital heart disease. However, little is known about its distribution among adults with systemic right ventricle (sRV). We aimed to assess the distribution of hsTnT concentrations in patients with congenitally corrected transposition of the great arteries (ccTGA) and to evaluate its relationship with sRV function and NT-proBNP. METHODS: A cross-sectional study of adults with ccTGA was conducted...
March 11, 2017: International Journal of Cardiology
keyword
keyword
26143
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"