keyword
MENU ▼
Read by QxMD icon Read
search

longitudinal strain

keyword
https://www.readbyqxmd.com/read/29785884/morphological-changes-and-myocardial-function-assessed-by-traditional-and-novel-echocardiographic-methods-in-preadolescent-athlete-s-heart
#1
Anders W Bjerring, Hege Ew Landgraff, Svein Leirstein, Anette Aaeng, Hamza Z Ansari, Jørg Saberniak, Klaus Murbræch, Henrik Bruun, Thomas M Stokke, Kristina H Haugaa, Jostein Hallén, Thor Edvardsen, Sebastian I Sarvari
Background Athlete's heart is a term used to describe the morphological and functional changes in the hearts of athletes. Recent studies suggest that these changes may occur even in preadolescent athletes. This study aims to improve our understanding of the changes occurring in the preadolescent athlete's heart. Design and methods Cardiac morphology and function in 76 preadolescent cross-country skiers (aged 12.1 ± 0.2 years) were compared with 25 age-matched non-competing preadolescents. Echocardiography was performed in all subjects, including 2D speckle-tracking strain echocardiography and 3D echocardiography...
January 1, 2018: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/29785733/left-ventricular-strain-analysis-using-cardiac-mri-in-patients-undergoing-in-centre-nocturnal-hemodialysis
#2
Jann Patrick Ong, Ron Wald, Marc B Goldstein, Jonathon Leipsic, Mercedeh Kiaii, Djeven P Deva, Anish Kirpalani, Laura Jimenez-Juan, Olugbenga Bello, Paymon M Azizi, Rachel M Wald, Graham A Wright, Ziv Harel, Kim A Connelly, Andrew T Yan
AIM: Intensified haemodialysis is associated with regression of left ventricular (LV) mass. Compared to LV ejection fraction, LV strain allows more direct assessment of LV function. We sought to assess the impact of in-centre nocturnal haemodialysis (INHD) on global LV strain (radial, circumferential, and longitudinal) and torsion by cardiac MRI (CMR). METHODS: In this prospective, 2-centre cohort study, 37 participants on conventional haemodialysis (CHD, 3-4 hours/session for 3 sessions/week) converted to INHD (7-8 hours/session for 3 sessions/week) and 30 participants continued CHD...
May 21, 2018: Nephrology
https://www.readbyqxmd.com/read/29784576/normal-values-and-growth-related-changes-of-left-ventricular-volumes-stress-and-strain-in-healthy-children-measured-by-3-dimensional-echocardiography
#3
Joseph D Kuebler, Sunil Ghelani, David M Williams, Meena Nathan, Gerald Marx, Steven D Colan, David M Harrild
Normal pediatric values of three-dimensional (3D) left ventricular (LV) volumes and strain are not well established; moreover, no reports exist of the stress-strain relation and the heart rate-corrected velocity of circumferential fiber shortening (VCFc) based upon 3D imaging in children. Three-dimensional LV datasets were obtained in pediatric patients (≤18 years of age) with structurally normal hearts. Ventricular volumes and strain components (longitudinal, GLS; circumferential, GCS; and 3D strain, 3DS) were analyzed using a commercial 3D speckle-tracking analysis package...
April 24, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29783986/impact-of-the-cone-operation-on-left-ventricular-size-function-and-dyssynchrony-in-ebstein-anomaly-a-cardiovascular-magnetic-resonance-study
#4
Rebecca S Beroukhim, Linyuan Jing, David M Harrild, Brandon K Fornwalt, Abba Mejia-Spiegeler, Jonathan Rhodes, Sitaram Emani, Andrew J Powell
BACKGROUND: In addition to tricuspid regurgitation (TR) and right ventricular (RV) enlargement, patients with Ebstein anomaly are at risk for left ventricular (LV) dysfunction and dyssynchrony. We studied the impact of the cone tricuspid valve reconstruction operation on LV size, function, and dyssynchrony. METHODS: All Ebstein anomaly patients who had both pre- and postoperative cardiovascular magnetic resonance (CMR) studies were retrospectively identified. From cine images, RV and LV volumes and ejection fractions (EF) were calculated, and LV circumferential and longitudinal strain were measured by feature tracking...
May 21, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29783925/corrigendum-2
#5
(no author information available yet)
Nauta FJH, Van Bogerijen GHW, Trentin C, et al. Impact of thoracic endovascular aortic repair on pulsatile circumferential and longitudinal strain in patients with aneurysm. J Endovasc Ther. 2017;24:281-289. doi:10.1177/1526602816687086.
June 2018: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/29783204/chondron-curvature-mapping-in-growth-plate-cartilage-under-compressive-loading
#6
Bhavya B Vendra, Esra Roan, John L Williams
The physis, or growth plate, is a layer of cartilage responsible for long bone growth. It is organized into reserve, proliferative and hypertrophic zones. Unlike the reserve zone where chondrocytes are randomly arranged, either singly or in pairs, the proliferative and hypertrophic chondrocytes are arranged within tubular structures called chondrons. In previous studies, the strain patterns within the compressed growth plate have been reported to be nonuniform and inhomogeneous, with an apparent random pattern in compressive strains and a localized appearance of tensile strains...
May 18, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29778859/diagnosis-of-nonischemic-stage-b-heart-failure-in-type-2-diabetes-mellitus-optimal-parameters-for-prediction-of-heart-failure
#7
Ying Wang, Hong Yang, Quan Huynh, Mark Nolan, Kazuaki Negishi, Thomas H Marwick
OBJECTIVES: This study sought to identify whether impaired global longitudinal strain (GLS), diastolic dysfunction (DD), or left atrial enlargement (LAE) should be added to stage B heart failure (SBHF) criteria in asymptomatic patients with type 2 diabetes mellitus. BACKGROUND: SBHF is a precursor to clinical heart failure (HF), and its recognition justifies initiation of cardioprotective therapy. However, original definitions of SBHF were based on LV hypertrophy and impaired ejection fraction...
May 11, 2018: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29778856/single-versus-standard-multiview-assessment-of-global-longitudinal-strain-for-the-diagnosis-of-cardiotoxicity-during-cancer-therapy
#8
Paaladinesh Thavendiranathan, Tomoko Negishi, Marc-Andre Coté, Martin Penicka, Richard Massey, Goo-Yeong Cho, Krassimira Hristova, Dragos Vinereanu, Bogdan A Popescu, Masaki Izumo, Kazuaki Negishi, Thomas H Marwick
OBJECTIVES: The goal of this study was to compare echocardiographic measurements of global longitudinal strain (GLS) (using 3 apical views) with single-view longitudinal strain (LS, 4- or 2-chamber [4CV_LS and 2CV_LS, respectively]) for detection of cancer-therapy related cardiotoxicity. BACKGROUND: GLS is useful for the detection of cardiotoxicity, but the need for repeated measurements poses a significant burden on busy echocardiography laboratories. A single-view LS measurement, possibly at point of care, could improve efficiency...
May 11, 2018: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29778855/myocardial-strain-in-prediction-of-outcomes-after-surgery-for-severe-mitral-regurgitation
#9
Hyue Mee Kim, Goo-Yeong Cho, In-Chang Hwang, Hong-Mi Choi, Jun-Bean Park, Yeonyee E Yoon, Hyung-Kwan Kim
OBJECTIVES: We investigated whether global longitudinal strain (GLS) is a better predictor of clinical events after surgery for mitral regurgitation (MR) than conventional parameters. BACKGROUND: The optimal timing for surgery is guided by left ventricular (LV) dimension or left ventricular ejection fraction (LVEF), even though normal LVEF can mask depressed LV systolic function in severe mitral MR. METHODS: From 2006 to 2016, 506 patients (age 58...
May 11, 2018: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29778850/the-prognostic-role-of-global-longitudinal-strain-in-severe-primary-mitral-regurgitation-moving-past-the-proof-of-concept-era
#10
EDITORIAL
James D Thomas, Menhel Kinno
No abstract text is available yet for this article.
May 11, 2018: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29777281/right-ventricular-systolic-function-parameters-in-hypoplastic-left-heart-syndrome
#11
S Javed Zaidi, Jamie Penk, Vivian W Cui, Supaluck Kanjanauthai, David A Roberson
Assessment of the systolic function of the right ventricle (RV) in patients with hypoplastic left heart syndrome (HLHS) is important. The asymmetric shape and heavy trabeculations make accurate assessment of RV systolic function challenging. Novel measures of RV function could be helpful in distinguishing reduced versus preserved function in HLHS and may also be worse in HLHS with preserved function compared to normal controls. These novel methods offer promise, but research and clinical applicability is hindered as no cut-off values for normal function have been established...
May 18, 2018: Pediatric Cardiology
https://www.readbyqxmd.com/read/29776809/the-presence-of-fragmented-qrs-is-associated-with-increased-epicardial-adipose-tissue-and-subclinical-myocardial-dysfunction-in-healthy-individuals
#12
Mehmet Yaman, Ugur Arslan, Adil Bayramoglu, Osman Bektas, Zeki Yuksel Gunaydin, Ahmet Kaya
AIM: The aim of this study was to measure epicardial adipose tissue (EAT) and to assess left ventricular (LV) systolic and diastolic function in a healthy population grouped according to the presence of fragmented QRS (fQRS). METHODS: In this prospective case-control study, the study population consisted of 308 healthy individuals who were divided into two groups according to the existence of fQRS: 180 fQRS(+) individuals (with fQRS), and 128 age- and gender-matched fQRS(-) individuals (without fQRS)...
May 15, 2018: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29773649/ptap-motif-duplication-in-the-p6-gag-protein-confers-a-replication-advantage-on-hiv-1-subtype-c
#13
Shilpee Sharma, Prabhu S Arunachalam, Malini Menon, Viswanath Ragupathy, Ravi Vijaya Satya, Joshua Jebaraj, Shambhu Ganeshappa Aralaguppe, Chaitra Rao, Sreshtha Pal, Shanmugam Saravanan, Kailapuri G Murugavel, Pachamuthu Balakrishnan, Suniti Solomon, Indira Hewlett, Udaykumar Ranga
HIV-1 subtype C (HIV-1C) may duplicate longer amino acid stretches in the p6 Gag protein, leading to the creation of an additional Pro-Thr/Ser-Ala-Pro (PTAP) motif necessary for viral packaging. However, the biological significance of a duplication of the PTAP motif for HIV-1 replication and pathogenesis has not been experimentally validated. In a longitudinal study of two different clinical cohorts of select HIV-1 seropositive, drug-naive individuals from India, we found that 8 of 50 of these individuals harbored a mixed infection of viral strains discordant for the PTAP duplication...
May 17, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29773243/impact-of-diabetes-and-increasing-body-mass-index-category-on-left-ventricular-systolic-and-diastolic-function
#14
Arnold C T Ng, Francesca Prevedello, Giulia Dolci, Cornelis J Roos, Roxana Djaberi, Matteo Bertini, See Hooi Ewe, Christine Allman, Dominic Y Leung, Nina Ajmone Marsan, Victoria Delgado, Jeroen J Bax
BACKGROUND: Diabetes and obesity are both worldwide growing epidemics, and both are independently associated with increased risk for heart failure and death. The aim of this study was to examine the additive detrimental effect of both diabetes and increasing body mass index (BMI) category on left ventricular (LV) myocardial systolic and diastolic function. METHODS: The present retrospective multicenter study included 653 patients (337 with type 2 diabetes and 316 without diabetes) of increasing BMI category...
May 15, 2018: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29770913/diagnostic-value-of-myocardial-deformation-pattern-in-children-with-noncompaction-cardiomyopathy
#15
Putri Yubbu, Hythem M Nawaytou, Renzo Calderon-Anyosa, Anirban Banerjee
The current echocardiographic diagnostic criteria for noncompaction cardiomyopathy (NCC) have variable sensitivity and low specificity. Moreover, there are limited data on the use of myocardial deformation imaging for early detection of myocardial dysfunction in children with NCC. We describe left ventricular (LV) deformation patterns in children with NCC, with the goal of identifying a potential diagnostic pattern. We prospectively enrolled 30 children with NCC (47% male; mean age 7.2 years) and 30 age- and gender-matched controls...
May 16, 2018: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29769596/hcp-fcc-nucleation-in-bcc-iron-under-different-anisotropic-compressions-at-high-strain-rate-molecular-dynamics-study
#16
Jian-Li Shao, Pei Wang, Feng-Guo Zhang, An-Min He
Previous researches have revealed the importance of shear and the orientation dependence in the structural transition of iron. In this work, we introduce a series of shear deformations by adjusting the strain ratio between the longitudinal ([001]) and transversal ([010] and [100]) directions, and then investigate this structural transition under different anisotropic compressions with molecular dynamics simulations. It is found that the shear deformation can lower the transition pressure notably, and even change the nucleation structure and morphology...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29766272/blood-pressure-is-normal-but-is-the-heart
#17
Serkan Fazlı Çelik, Cemşit Karakurt, Yılmaz Tabel, Taner Elmas, Saim Yoloğlu
BACKGROUND: There is no detailed strain analysis of cardiac functions in treated hypertensive pediatric patients. The aim of this study was to evaluate the cardio-protective effects of different drug classes in treated pediatric hypertensive patients. METHODS: Sixty non-obese-treated hypertensive patients with preserved left ventricular (LV) systolic function and 45 age-, sex-, and body mass index-matched healthy subjects underwent clinical evaluation, including 24-h ambulatory blood pressure monitoring, standard echocardiographic examination, tissue Doppler imaging, and two-dimensional Speckle Tracking Echocardiography...
May 15, 2018: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/29764969/cardiovascular-phenotype-and-prognosis-of-patients-with-heart-failure-induced-by-cancer-therapy
#18
Wilson Nadruz, Erin West, Morten Sengeløv, Gabriela L Grove, Mário Santos, John D Groarke, Daniel E Forman, Brian Claggett, Hicham Skali, Anju Nohria, Amil M Shah
OBJECTIVE: This study compared the clinical features, cardiac structure and function evaluated by echocardiography, cardiopulmonary response to exercise and long-term clinical outcomes between patients with heart failure (HF) induced by cancer therapy (CTHF) and heart failure not induced by cancer therapy (NCTHF). METHODS: We evaluated 75 patients with CTHF and 894 with NCTHF who underwent clinically indicated cardiopulmonary exercise testing, and followed these individuals for a median of 4...
May 15, 2018: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29760670/validating-the-copenhagen-psychosocial-questionnaire-copsoq-ii-using-set-esem-identifying-psychosocial-risk-factors-in-a-sample-of-school-principals
#19
Theresa Dicke, Herbert W Marsh, Philip Riley, Philip D Parker, Jiesi Guo, Marcus Horwood
School principals world-wide report high levels of strain and attrition resulting in a shortage of qualified principals. It is thus crucial to identify psychosocial risk factors that reflect principals' occupational wellbeing. For this purpose, we used the Copenhagen Psychosocial Questionnaire (COPSOQ-II), a widely used self-report measure covering multiple psychosocial factors identified by leading occupational stress theories. We evaluated the COPSOQ-II regarding factor structure and longitudinal, discriminant, and convergent validity using latent structural equation modeling in a large sample of Australian school principals ( N = 2,049)...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29760213/changes-in-iga-protease-expression-are-conferred-by-changes-in-genomes-during-persistent-infection-by-nontypeable-haemophilus-influenzae-in-chronic-obstructive-pulmonary-disease
#20
Mary C Gallo, Charmaine Kirkham, Samantha Eng, Remon S Bebawee, Yong Kong, Melinda M Pettigrew, Hervé Tettelin, Timothy F Murphy
Nontypeable Haemophilus influenzae (NTHi) is an exclusively human pathobiont that plays a critical role in the course and pathogenesis of chronic obstructive pulmonary disease (COPD). NTHi causes acute exacerbations of COPD and also causes persistent infection of the lower airways. NTHi expresses four IgA protease variants (A1, A2, B1, and B2) that play different roles in virulence. Expression of IgA proteases varies among NTHi strains, but little is known about the frequency and mechanisms by which NTHi modulates IgA protease expression during infection in COPD...
May 14, 2018: Infection and Immunity
keyword
keyword
49823
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"