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Journal of the American Society of Echocardiography

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https://www.readbyqxmd.com/read/28807477/echocardiographic-features-and-clinical-outcomes-of-flail-mitral-leaflet-without-severe-mitral-regurgitation
#1
Devin W Kehl, Florian Rader, Robert J Siegel
BACKGROUND: Flail mitral leaflet is a common complication of degenerative mitral regurgitation (MR) and is generally equated with severe MR. However, a flail mitral leaflet is not always associated with severe MR. The hemodynamic and clinical significance of a flail leaflet in the absence of severe MR has not been characterized. The authors identified cases of flail mitral leaflet associated with only mild or moderate MR and evaluated their echocardiographic features and clinical outcomes...
August 11, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28803685/quantification-of-pulmonary-regurgitation-by-vector-flow-mapping-in-congenital-heart-patients-after-repair-of-right-ventricular-outflow-obstruction-a-preliminary-study
#2
Ashley Hoi-Man To, Vivian Wing-Yi Li, Ming-Yen Ng, Yiu-Fai Cheung
BACKGROUND: Vector flow mapping (VFM) enables direct visualization of flow pattern and estimation of flow volume. The aim of this study was to determine its accuracy in the quantification of pulmonary regurgitation (PR) in congenital heart patients after repair of right ventricular (RV) outflow obstruction. METHODS: This study comprised two parts: (1) validation of VFM in the quantification of PR in patients with repaired tetralogy of Fallot by cardiac magnetic resonance and (2) clinical application of VFM to determine PR in patients after biventricular repair of pulmonary atresia and stenosis with intact ventricular septum...
August 10, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28803684/role-of-two-dimensional-speckle-tracking-echocardiography-strain-in-the-assessment-of%C3%A2-right-ventricular-systolic-function-and-comparison-with-conventional-parameters
#3
REVIEW
Luca Longobardo, Valentin Suma, Renuka Jain, Scipione Carerj, Concetta Zito, Dianne L Zwicke, Bijoy K Khandheria
Despite the already well-known role the right side of the heart plays in many diseases, right ventricular (RV) function has only recently been carefully considered. Echocardiography is the first-line diagnostic technique for the assessment of the right ventricle and right atrium, whereas cardiac magnetic resonance is considered the gold standard but is limited by cost and availability. According to the current guidelines, systolic RV function should be assessed by several conventional measurements, but the efficacy of these parameters as diagnostic and prognostic tools has been questioned by many authors...
August 10, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28802483/left-ventricular-systolic-myocardial-deformation-a%C3%A2-comparison-of-two-and-three-dimensional-echocardiography-in-children
#4
Sowmya Balasubramanian, Rajesh Punn, Shea N Smith, Helene Houle, Theresa A Tacy
BACKGROUND: The clinical applicability and reliability of three-dimensional (3D) speckle-tracking echocardiography has not been well studied in pediatric patients. The aim of this study was to compare two-dimensional (2D) echocardiography and 3DE real-time full-volume-derived strain and rotation indices in healthy children and patients with dilated cardiomyopathy (DCM). METHODS: Children with either normal function or DCM were prospectively recruited in an outpatient setting, and deformation indices, including circumferential, radial, and longitudinal strain and torsion, were measured by 2D and 3D echocardiography...
August 9, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28801203/echocardiographic-prediction-of-cardiac-resynchronization-therapy-response-requires-analysis-of-both-mechanical-dyssynchrony-and-right-ventricular-function-a-combined-analysis-of%C3%A2-patient-data-and-computer-simulations
#5
Wouter M van Everdingen, John Walmsley, Maarten J Cramer, Iris van Hagen, Bart W L De Boeck, Mathias Meine, Tammo Delhaas, Pieter A Doevendans, Frits W Prinzen, Joost Lumens, Geert E Leenders
BACKGROUND: Pronounced echocardiographically measured mechanical dyssynchrony is a positive predictor of response to cardiac resynchronization therapy (CRT), whereas right ventricular (RV) dysfunction is a negative predictor. The aim of this study was to investigate how RV dysfunction influences the association between mechanical dyssynchrony and left ventricular (LV) volumetric remodeling following CRT. METHODS: One hundred twenty-two CRT candidates (mean LV ejection fraction, 19 ± 6%; mean QRS width, 168 ± 21 msec) were prospectively enrolled and underwent echocardiography before and 6 months after CRT...
August 8, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28797723/left-ventricular-global-strain-analysis-by-two-dimensional-speckle-tracking-echocardiography-the-learning-curve
#6
Jonathan Chan, Kenji Shiino, Nchafatso G Obonyo, Joseph Hanna, Robert Chamberlain, Andrew Small, Isabel G Scalia, William Scalia, Akira Yamada, Christian R Hamilton-Craig, Gregory M Scalia, Jose Luis Zamorano
BACKGROUND: The application of left ventricular (LV) global strain by speckle-tracking is becoming more widespread, with the potential for incorporation into routine clinical echocardiography in selected patients. There are no guidelines or recommendations for the training requirements to achieve competency. The aim of this study was to determine the learning curve for global strain analysis and determine the number of studies that are required for independent reporting. METHODS: Three groups of novice observers (cardiology fellows, cardiac sonographers, medical students) received the same standardized training module prior to undertaking retrospective global strain analysis on 100 patients over a period of 3 months...
August 7, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28797722/stress-echocardiography-a-major-tool-for-determining-arrhythmogenic-right-ventricular-dysplasia-cardiomyopathy
#7
LETTER
Sébastien Champion
No abstract text is available yet for this article.
August 7, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28789819/persistence-of-deformation-abnormalities-and-detection-of-fibrosis-at-4-month-follow-up-in-patients-with-takotsubo-syndrome
#8
LETTER
John E Madias
No abstract text is available yet for this article.
August 5, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28781117/increased-coronary-tortuosity-is-associated-with-increased-left-ventricular-longitudinal-myocardial-shortening
#9
Andrew C Oehler, Jessica Minnier, Jonathan R Lindner
BACKGROUND: The mechanistic basis for tortuosity of the coronary arteries (TCA) is unclear. The aim of this study was to test the hypothesis that the relative degree of systolic longitudinal shortening of the left ventricle that deforms coaxially oriented coronary arteries is associated with TCA. METHODS: Adult subjects undergoing coronary angiography and comprehensive echocardiography within 3 months were classified dichotomously as with (n = 32) or without (n = 42) TCA defined on the basis of number and severity of coronary angles...
August 3, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28781116/acceleration-time-and-ratio-of-acceleration-time%C3%A2-to-ejection-time-in-aortic-stenosis-new%C3%A2-echocardiographic-diagnostic-parameters
#10
Sergio Gamaza-Chulián, Enrique Díaz-Retamino, Santiago Camacho-Freire, Dolores Ruiz-Fernández, Alejandro Gutiérrez-Barrios, Jesús Oneto-Otero
BACKGROUND: Inconsistencies between gradients and aortic valve area are frequent in the echocardiographic evaluation of aortic stenosis (AS). Assessing AS severity is essential for the correct management of the disease. The aim of this study was to evaluate whether ejection dynamics, particularly acceleration time (AT) and the ratio of AT to ejection time (ET), could be diagnostic parameters in patients with AS. METHODS: Patients with AS (aortic peak velocity > 2 m/sec) were prospectively enrolled...
August 3, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28764864/accurate-measurement-of-left-ventricular-outflow-tract-diameter-comment-on-the-updated-recommendations-for-the-echocardiographic-assessment-of-aortic-valve-stenosis
#11
LETTER
Rebecca T Hahn, Philippe Pibarot
No abstract text is available yet for this article.
July 29, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28739246/three-dimensional-measurement-of-aortic-annulus-dimensions-using-area-or-circumference-for-transcatheter-aortic-valve-replacement-valve-sizing-does-it-make-a-difference
#12
Alexandros Papachristidis, Michael Papitsas, Damian Roper, Yanzhong Wang, Rafal Dworakowski, Jonathan Byrne, Olaf Wendler, Philip MacCarthy, Mark J Monaghan
BACKGROUND: The use of transcatheter aortic valve replacement (TAVR) is increasing worldwide. We present our 6-year experience using three-dimensional (3D) transesophageal echocardiography (TEE) and investigate whether different sizing methods of the aortic annulus lead to different prosthesis size that may impact outcome. METHODS: We investigated 262 patients who underwent TAVR and had 3D TEE data sets of the aortic annulus. We have used the area-derived diameter (Darea = 2(area/π)) and the circumference-derived diameter (Dcirc = Circumference/π) to size the prosthesis in separate populations in different time periods...
July 21, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28735892/clinical-and-echocardiographic-correlates-of-left-atrial-function-index-the-framingham-offspring-study
#13
Mayank Sardana, Gregory Nah, Connie W Tsao, Adedotun A Ogunsua, Eric Vittinghoff, Randell C Thomas, Susan Cheng, Aditya Vaze, Jayashri R Aragam, Gary F Mitchell, Emelia J Benjamin, Ramachandran S Vasan, Gerard P Aurigemma, Nelson B Schiller, David D McManus, Nisha I Parikh
BACKGROUND: Left atrial (LA) remodeling is a predictor of cardiovascular disease (CVD). We performed measurement of the LA function index (LAFI), a composite measure of LA structure and function, in a community-based cohort and here report the distribution and cross-sectional correlates of LAFI. METHODS: In 1,719 Framingham Offspring Study participants (54% women, mean age 66 ± 9 years), we derived LAFI from the LA emptying fraction, left ventricular (LV) outflow tract velocity time integral, and indexed maximal LA volume...
July 20, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28688859/authors-reply
#14
LETTER
Eiji Yamashita, Shigeru Oshima
No abstract text is available yet for this article.
July 6, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28688858/a-comprehensive-review-of-stress-testing-in-hypertrophic-cardiomyopathy-assessment-of-functional-capacity-identification-of-prognostic-indicators-and-detection-of-coronary-artery-disease
#15
REVIEW
Albree Tower-Rader, Jorge Betancor, Harry M Lever, Milind Y Desai
Hypertrophic cardiomyopathy is a heterogeneous condition that may present with functional limitation due to dyspnea on exertion, angina, or symptoms of heart failure. Although angina is a common symptom, it is thought to be multifactorial, including abnormal microvasculature and epicardial coronary artery disease. The role of stress testing in the detection of coronary artery disease and its limitations are discussed in this review. Stress testing yields additional information beyond the detection of ischemia, which is prognostic independent of the presence of coronary artery disease and can be beneficial in defining the presence of provocable left ventricular outflow tract obstruction, symptoms, response of heart rate and blood pressure to exercise, and functional capacity...
July 6, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28688857/three-dimensional-echocardiographic-automated-quantification-of-left-heart-chamber-volumes-using-an-adaptive-analytics-algorithm-feasibility-and-impact-of-image-quality-in-nonselected-patients
#16
Diego Medvedofsky, Victor Mor-Avi, Isida Byku, Amita Singh, Lynn Weinert, Megan Yamat, Eric Kruse, Boguslawa Ciszek, Alma Nelson, Kyoko Otani, Masaaki Takeuchi, Roberto M Lang
BACKGROUND: Although 3D echocardiography (3DE) allows accurate and reproducible quantification of cardiac chambers, it has not been integrated into clinical practice because it relies on manual input, which interferes with workflow. A recently developed automated adaptive analytics algorithm for simultaneous quantification of left ventricular and atrial (LV, LA) volumes was found to be accurate and reproducible in patients with good images. We sought to prospectively test its feasibility and accuracy in consecutive patients in relationship with image quality and reader experience...
July 6, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28688856/implementation-of-left-ventricular-ejection-fraction-assessment-by-three-dimensional-echocardiography-in-daily-clinical-practice
#17
LETTER
Bas M van Dalen, Addy J M van Miltenburg, Hanneke J M Zuetenhorst, Constantin Dragoiescu
No abstract text is available yet for this article.
July 6, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28688855/low-incidence-of-congenital-bicuspid-aortic-valve-in-sub-saharan-african-children
#18
LETTER
Edward L Kaplan, Bernard Bulwer, David Adams
No abstract text is available yet for this article.
July 6, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28668226/sustained-chronic-maternal-hyperoxygenation-increases-myocardial-deformation-in-fetuses-with-a-small-aortic-isthmus-at-risk-for-coarctation
#19
Shi Zeng, Jiawei Zhou, Qinghai Peng, Wen Deng, Ming Zang, Tao Wang, Qichang Zhou
BACKGROUND: We aimed to assess differences in myocardial deformation in fetuses at risk for coarctation (CoA) and the effects of maternal hyperoxygenation on deformation. METHODS: Fetal echocardiography and velocity vector imaging were performed prospectively and serially in 48 fetuses with a small aortic isthmus and 48 gestation age-matched normal fetuses. Fetuses with a small aortic isthmus were randomly divided into two groups: one group with and the other group without maternal supplemental oxygen administration...
June 28, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28651802/echocardiographic-diagnosis-surgical-treatment-and-outcomes-of-anomalous-left-coronary-artery-from-the-pulmonary-artery
#20
Shivani G Patel, Michele A Frommelt, Peter C Frommelt, Shelby Kutty, Jonathan W Cramer
BACKGROUND: Anomalous left coronary artery from the pulmonary artery (ALCAPA) is a rare condition that can be difficult to diagnose by echocardiography alone. The purpose of this study was to describe the clinical and echocardiographic presentation of ALCAPA, create a set of critical echocardiographic diagnostic criteria, and report outcomes. METHODS: A retrospective review was conducted of all patients diagnosed with isolated ALCAPA at two major cardiac centers between 1990 and 2015...
June 23, 2017: Journal of the American Society of Echocardiography
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