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https://www.readbyqxmd.com/read/29655509/reduced-right-ventricular-fractional-area-change-strain-and-strain-rate-before-bidirectional-cavopulmonary-anastomosis-is-associated-with-medium-term-mortality-for-children-with-hypoplastic-left-heart-syndrome
#1
Lily Q Lin, Jennifer Conway, Silvia Alvarez, Benjamin Goot, Jesus Serrano-Lomelin, Timothy Colen, Edythe B Tham, Shelby Kutty, Ling Li, Nee Scze Khoo
BACKGROUND: Ventricular dysfunction is associated with increased morbidity and mortality in children with hypoplastic left heart syndrome. The aim of this study was to assess the diagnostic performance of conventional and speckle-tracking echocardiographic measures of right ventricular (RV) function before bidirectional cavopulmonary anastomosis palliation in predicting death or need for heart transplantation (HTx). METHODS: RV fractional area change (RVFAC) and longitudinal and circumferential strain and strain rate (SR) were measured in 64 prospectively recruited patients with hypoplastic left heart syndrome from echocardiograms obtained before bidirectional cavopulmonary anastomosis surgery...
April 12, 2018: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29650708/outcomes-in-asymptomatic-severe-aortic-stenosis-with-preserved-ejection-fraction-undergoing-rest-and-treadmill-stress-echocardiography
#2
Chetan P Huded, Ahmad Masri, Kenya Kusunose, Andrew L Goodman, Richard A Grimm, A Marc Gillinov, Douglas R Johnston, L Leonardo Rodriguez, Zoran B Popovic, Lars G Svensson, Brian P Griffin, Milind Y Desai
BACKGROUND: In asymptomatic patients with severe aortic stenosis and preserved left ventricular ejection fraction, we sought to assess the incremental prognostic value of resting valvuloarterial impedence (Zva) and left ventricular global longitudinal strain (LV-GLS) to treadmill stress echocardiography. METHODS AND RESULTS: We studied 504 such patients (66±12 years, 78% men, 32% with coronary artery disease who underwent treadmill stress echocardiography between 2001 and 2012...
April 12, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29629021/long-term-outcomes-of-left-atrial-reservoir-function-in-children-with-a-history-of-kawasaki-disease
#3
Soo Jung Kang, Jihyun Ha, Seo Jung Hwang, Hyo Jin Kim
Background: Decreased left atrial (LA) reservoir function is reported to be associated with elevated left ventricular (LV) end diastolic pressure and LV diastolic dysfunction. Echocardiographic parameters that reflect LA reservoir function include LA total emptying fraction [(maximum LA volume - minimum LA volume) / maximum LA volume], peak LA longitudinal strain (PLALS) at systole, and LA stiffness index (E/E´/PLALS). We aimed to investigate the long-term outcomes of LV diastolic function in children with a history of Kawasaki disease (KD) (KDHx group) by assessing LA reservoir function...
March 2018: Journal of Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/29627182/transesophageal-echocardiographic-strain-imaging-predicts-aortic-biomechanics-beyond-diameter
#4
Alexander Emmott, Haitham Alzahrani, Mohammed Alreishidan, Judith Therrien, Richard L Leask, Kevin Lachapelle
BACKGROUND: Clinical guidelines recommend resection of ascending aortic aneurysms at diameters 5.5 cm or greater to prevent rupture or dissection. However, approximately 40% of all ascending aortic dissections occur below this threshold. We propose new transesophageal echocardiography strain-imaging moduli coupled with blood pressure measurements to predict aortic dysfunction below the surgical threshold. METHODS: A total of 21 patients undergoing aortic resection were recruited to participate in this study...
March 11, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29627138/longitudinal-changes-in-right-ventricular-function-in-tetralogy-of-fallot-in-the-initial-years-after-surgical-repair
#5
Michael P DiLorenzo, Okan U Elci, Yan Wang, Anirban Banerjee, Tomoyuki Sato, Bonnie Ky, Elizabeth Goldmuntz, Laura Mercer-Rosa
BACKGROUND: Right ventricular (RV) dysfunction is associated with adverse long-term outcomes in patients with tetralogy of Fallot. Little is known about RV function in the first years after surgical repair. The aim of this study was to investigate perioperative changes in myocardial deformation using global longitudinal strain. METHODS: A retrospective analysis of patients with surgically repaired tetralogy of Fallot was performed. Global longitudinal peak systolic RV strain was measured on early postoperative echocardiograms, two subsequent postoperative echocardiograms through 2 years postoperatively, and preoperative echocardiograms, when available...
April 4, 2018: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29609946/exercise-induced-cardiac-remodeling-in-athletes-and-in-special-forces-soldiers
#6
Paulo Dinis, Rogério Teixeira, Hélder Dores, Pedro Correia, Hanna Lekedal, Marie Bergman, Maria Carmo Cachulo, Joaquim Cardoso, Lino Gonçalves
INTRODUCTION: Exercise-induced cardiac remodeling is frequent in athletes. This adaptation is structurally manifested by an increase in cardiac dimensions and mass. Soldiers are also subject to intense physical exercise, although with different characteristics. OBJECTIVE: To compare exercise-induced cardiac remodeling in competitive athletes and in soldiers on a special forces training course. METHODS: We studied 17 soldiers (all male and Caucasian, mean age 21±3 years) who completed a special forces course and 17 basketball players (47...
March 30, 2018: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/29607567/shear-strain-rate-from-phase-contrast-velocity-encoded-mri-application-to-study-effects-of-aging-in-the-medial-gastrocnemius-muscle
#7
Usha Sinha, Vadim Malis, Robert Csapo, Marco Narici, Shantanu Sinha
BACKGROUND: Strain rate (SR) is a measure of the rate of regional deformation that can be computed by analyzing velocity-encoded phase-contrast 2D images. Recent studies have explored the changes in normal components of the strain tensor in aging muscle, while shear strain may also provide valuable information. PURPOSE: To compute the shear SR from velocity-encoded MRI of the lower leg and to study the correlation of SR parameters measured in the medial gastrocnemius (MG) to muscle force in a cohort of young and senior subjects...
April 1, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29607538/free-breathing-cine-dense-mri-using-phase-cycling-with-matchmaking-and-stimulated-echo-image-based-navigators
#8
Xiaoying Cai, Frederick H Epstein
PURPOSE: This study aimed to develop a self-navigated method for free-breathing spiral cine displacement encoding with stimulated echoes (DENSE), a myocardial strain imaging technique that uses phase-cycling for artifact suppression. The method needed to address 2 consequences of motion for DENSE: striping artifacts from incomplete suppression of the T1 -relaxation echo and blurring. METHODS: The method identifies phase-cycled spiral interleaves at matched respiratory phases by minimizing the residual signal due to T1 relaxation after phase-cycling subtraction...
April 1, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29605969/latent-myopathy-is-more-pronounced-in-patients-with-low-flow-versus-normal-flow-aortic-stenosis-with-normal-left-ventricular-ejection-fraction-who-are-undergoing-surgical-aortic-valve-replacement-multicenter-study-with-a-brief-review-of-the-literature
#9
Azhar Supariwala, Monica Sanchez-Ross, Valentin Suma, Karthik Seetharam, Daniel Marrero, Daniel Swistel, Sandhya Balaram, Farooq A Chaudhry
BACKGROUND: Midwall fibrosis and low stroke volume are independent predictors of mortality in severe aortic stenosis (AS) with preserved LV ejection fraction (LVEF). The role of speckle tracking echocardiography (STE) to identify latent myopathy pre- and post- aortic valve replacement (AVR) in high risk AS patients with normal LVEF is limited. METHODS: Demographic, 2D echocardiographic, and STE data were analyzed in patients with severe AS and preserved LVEF who underwent tissue AVR...
April 1, 2018: Echocardiography
https://www.readbyqxmd.com/read/29575396/changes-in-left-ventricular-strain-parameters-following-pediatric-heart-transplantation
#10
Justin Godown, Debra A Dodd, Michael Stanley, Corey Havens, Meng Xu, James C Slaughter, David W Bearl, Jonathan H Soslow
STE is increasingly utilized to assess strain in a variety of pathologies. Strain measurements have demonstrated utility following HTx and may aid in the detection of rejection and CAV. Strain parameters have not been well defined in the pediatric HTx population. This study aimed to describe strain in pediatric HTx recipients compared to controls and assess changes over time. All pediatric HTx recipients with available echocardiograms (2004-2015) without rejection or CAV were identified. Longitudinal and circumferential strain was measured at <1 month, 1 year, 3 years, and 5 years post-transplant and compared to controls...
March 25, 2018: Pediatric Transplantation
https://www.readbyqxmd.com/read/29572938/prognostic-value-of-echocardiographic-indices-of-left-atrial-morphology-and-function-in-dogs-with-myxomatous-mitral-valve-disease
#11
Marco Baron Toaldo, Giovanni Romito, Carlo Guglielmini, Alessia Diana, Nazzareno G Pelle, Barbara Contiero, Mario Cipone
BACKGROUND: The prognostic relevance of left atrial (LA) morphological and functional variables, including those derived from speckle tracking echocardiography (STE), has been little investigated in veterinary medicine. OBJECTIVES: To assess the prognostic value of several echocardiographic variables, with a focus on LA morphological and functional variables in dogs with myxomatous mitral valve disease (MMVD). ANIMALS: One-hundred and fifteen dogs of different breeds with MMVD...
March 23, 2018: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29566820/physiological-stress-elicits-impaired-left-ventricular-function-in-preterm-born-adults
#12
Odaro J Huckstep, Wilby Williamson, Fernando Telles, Holger Burchert, Mariane Bertagnolli, Charlotte Herdman, Linda Arnold, Robert Smillie, Afifah Mohamed, Henry Boardman, Kenny McCormick, Stefan Neubauer, Paul Leeson, Adam J Lewandowski
BACKGROUND: Experimental and clinical studies show that prematurity leads to altered left ventricular (LV) structure and function with preserved resting LV ejection fraction (EF). Large-scale epidemiological data now links prematurity to increased early heart failure risk. OBJECTIVES: The authors performed echocardiographic imaging at prescribed exercise intensities to determine whether preterm-born adults have impaired LV functional response to physical exercise...
March 27, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29565646/a-mechanism-for-3d-semi-automated-myocardium-boundary-detection-using-displacement-encoding-with-stimulated-echoes-dense
#13
Julia Karr, Xiaodong Zhong, Michael V Cohen, Angela Judice-Yates, Eduardo Rel, Maria S Figarola
OBJECTIVE: Displacement ENcoding with Stimulated Echoes (DENSE) is a MRI technique developed to encode phase related to myocardial tissue displacements, and the displacement information directly applied towards detecting left-ventricular (LV) myocardial motion during the cardiac cycle. The purpose of this study is to present a novel, 3D DENSE displacement-based and magnitude image quantization-based, semi-automated detection technique for myocardial wall motion whose boundaries are used for rapid and automated computation of 3D myocardial strain...
March 22, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29561964/mid-term-results-of-surgical-treatment-of-atrial-fibrillation-in-valvular-heart-disease-assesed-by-speckle-tracking-echocardiography
#14
Natalia Lorenzo, Irene Mendez, Mikel Taibo, Gianfranco Martinis, Sara Badia, Guillermo Reyes, Rio Aguilar
BACKGROUND: Atrial fibrillation frequently affects patients with valvular heart disease. Ablation of atrial fibrillation during valvular surgery is an alternative for restoring sinus rhythm. OBJECTIVES: This study aimed to evaluate mid-term results of successful atrial fibrillation surgical ablation during valvular heart disease surgery, to explore left atrium post-ablation mechanics and to identify predictors of recurrence. METHODS: Fifty-three consecutive candidates were included...
March 19, 2018: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29553992/left-atrial-volume-index-is-critical-for-the-diagnosis-of-heart-failure-with-preserved-ejection-fraction
#15
Pedro Almeida, João Rodrigues, Patricia Lourenço, Maria Julia Maciel, Paulo Bettencourt
BACKGROUND: Heart failure with preserved ejection fraction (HFpEF) is now well recognized but the identification of patients with HFpEF can be challenging. We aimed to evaluate the performance of tissue Doppler imaging indexes and left atrial size in HFpEF diagnosis. METHODS AND RESULTS: We designed a case-control study in which cases are patients with acute heart failure and controls are age-matched and sex-matched patients with multiple cardiovascular risk factors admitted to hospital because of stroke...
March 16, 2018: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/29538653/simulating-the-ideal-geometrical-and-biomechanical-parameters-of-the-pulmonary-autograft-to-prevent-failure-in-the-ross-operation
#16
Francesco Nappi, Antonio Nenna, Domenico Larobina, Angelo Rosario Carotenuto, Mohamed Jarraya, Cristiano Spadaccio, Massimiliano Fraldi, Massimo Chello, Christophe Acar, Thierry Carrel
OBJECTIVES: Reinforcements for the pulmonary autograft (PA) in the Ross operation have been introduced to avoid the drawback of conduit expansion and failure. With the aid of an in silico simulation, the biomechanical boundaries applied to a healthy PA during the operation were studied to tailor the best implant technique to prevent reoperation. METHODS: Follow-up echocardiograms of 66 Ross procedures were reviewed. Changes in the dimensions and geometry of reinforced and non-reinforced PAs were evaluated...
March 12, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29530621/right-ventricular-systolic-dysfunction-at-rest-is-not-related-to-decreased-exercise-capacity-in-patients-with-a-systemic-right-ventricle
#17
Frederik Helsen, Pieter De Meester, Alexander Van De Bruaene, Charlien Gabriels, Béatrice Santens, Mathias Claeys, Guido Claessen, Kaatje Goetschalckx, Roselien Buys, Marc Gewillig, Els Troost, Jens-Uwe Voigt, Piet Claus, Jan Bogaert, Werner Budts
BACKGROUND: To evaluate the relationship between right ventricular (RV) systolic dysfunction at rest and reduced exercise capacity in patients with a systemic RV (sRV). METHODS: All patients with congenitally corrected transposition of the great arteries (ccTGA) or complete TGA after atrial switch (TGA-Mustard/Senning) followed in our institution between July 2011 and September 2017 who underwent cardiac imaging within a six-month time period of cardiopulmonary exercise testing (CPET) were analyzed...
June 1, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29526564/normative-data-for-left-and-right-ventricular-systolic-strain-in-healthy-caucasian-italian-children-by-two-dimensional-speckle-tracking-echocardiography
#18
Massimiliano Cantinotti, Marco Scalese, Raffaele Giordano, Eliana Franchi, Nadia Assanta, Marco Marotta, Cecilia Viacava, Sabrina Molinaro, Giorgio Iervasi, Giuseppe Santoro, Martin Koestenberger
BACKGROUND: There is an increasing interest in echocardiographic strain (ε) measurements for the assessment of ventricular myocardial function in children; however, pediatric nomograms remain limited. Our aim was to establish pediatric nomograms for the left ventricular (LV) and the right ventricular (RV) ε measured by two-dimensional speckle-tracking echocardiography (2D-STE) in a large cohort of healthy children prospectively enrolled. METHODS: Echocardiographic measurements included STE LV longitudinal and circumferential and RV longitudinal global end-systolic ε...
March 8, 2018: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29523920/diminished-cardiac-performance-and-left-ventricular-dimensions-in-neonates-with-congenital-diaphragmatic-hernia
#19
Gabriel Altit, Shazia Bhombal, Krisa Van Meurs, Theresa A Tacy
INTRODUCTION: Newborns with congenital diaphragmatic hernia (CDH) have varying degrees of pulmonary hypoplasia and pulmonary hypertension (PH), and there is limited evidence that cardiac dysfunction is present. We sought to study early neonatal biventricular function and performance in these patients by reviewing early post-natal echocardiography (ECHO) measurements and comparing them to normal term newborns. METHODS: Retrospective case-control study reviewing clinical and ECHO data on term newborns with CDH and normal controls born between 2009 and 2016...
March 9, 2018: Pediatric Cardiology
https://www.readbyqxmd.com/read/29509967/early-modifications-of-cardiac-function-in-preterm-neonates-using-speckle-tracking-echocardiography
#20
Biagio Castaldi, Giulia Bordin, Valentina Favero, Daniel Nardo, Francesca Previati, Sabrina Salvadori, Eugenio Baraldi, Ornella Milanesi
BACKGROUND AND AIMS: Preterm newborns undergo hemodynamic challenges in the postnatal period. The aim of this study was to investigate myocardial mechanics changes in the postnatal period in preterm infants using speckle tracking echocardiography (STE). MATERIAL AND METHODS: Thirty-nine preterm infants ≤34 weeks' gestation underwent cardiac ultrasound evaluation during the first 96 hours of life. A repeated echocardiogram at 3 weeks of age was performed. Echocardiographic assessment involved left ventricular ejection fraction, mitral E/A ratio, S' and E' velocities, E/E' ratio, tricuspid annular plane systolic excursion (TAPSE), left atrium-to-aorta ratio, ductal diameter and ductal shunt pattern...
March 6, 2018: Echocardiography
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