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Systolic anterior motion

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https://www.readbyqxmd.com/read/28327475/free-breathing-black-blood-cine-fast-spin-echo-imaging-for-measuring-abdominal-aortic-wall-distensibility-a-feasibility-study
#1
Jyh-Miin Lin, Andrew Patterson, Tzu-Cheng Chao, Chengcheng Zhu, Hing-Chiu Chang, Jason Mendes, Hsiao-Wen Chung, Jonathan Gillard, Martin Graves
The paper reports a free-breathing black-blood CINE fast-spin echo (FSE) technique for measuring abdominal aortic wall motion. The free-breathing CINE FSE includes the following MR techniques: 1) variable-density sampling with fast iterative reconstruction; 2) inner-volume imaging; and 3) a blood-suppression preparation pulse. The proposed technique was evaluated in eight healthy subjects. The inner-volume imaging significantly reduced the intraluminal artifacts of respiratory motion (p = 0.015). The quantitative measurements were a diameter of 16...
March 22, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28315014/association-of-native-t1-times-with-biventricular-function-and-hemodynamics-in-precapillary-pulmonary-hypertension
#2
Yin Yin Chen, Hong Yun, Hang Jin, De Hong Kong, Yu Liang Long, Cai Xia Fu, Shan Yang, Meng Su Zeng
In precapillary pulmonary hypertension (PH) patients, we sought to (1) investigate the relationship between ventricular insertion point (VIP) T1 times, hemodynamic parameters, and biventricular function, and (2) determine the predictors of anterior and inferior VIP T1 time. Twenty-two patients with precapillary PH underwent 1.5-T cardiac MR, right heart catheterization (RHC), and echocardiography. A group of 10 healthy age- and sex-matched volunteers served as controls. Biventricular function, morphology and mass were obtained from short-axis cine images...
March 17, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28290177/left-ventricular-outflow-tract-obstruction-and-systolic-anterior-motion-of-the-mitral-valve-in-the-absence-of-hypertrophic-cardiomyopathy
#3
Natasha Aleksova, Alice Wang, Christopher A Glover, Thierry Mesana, Girish Dwivedi
Systolic anterior motion of the mitral valve is a mechanism for the development of left ventricular outflow tract (LVOT) obstruction. While often associated with left ventricular hypertrophy (LVH), a case is reported of symptomatic LVOT obstruction due to intrinsic mitral valve pathology in the absence of hypertrophy or cardiomyopathy. This case highlights the importance of recognizing isolated mitral valve pathology as a treatable cause of LVOT obstruction.
November 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28275421/treating-a-structural-heart-disease-using-a-non-structural-approach-role-of-cardiac-pacing-in-hypertrophic-cardiomyopathy
#4
Bernard Benjamin P Albano, Erdie C Fadreguilan, Jeffrey M Chua, James Ho, Ana Beatriz Medrano
Hypertrophic cardiomyopathy (HCM) is the most common genetic cardiovascular disease characterized by a thickened non-dilated ventricle in the absence of another cardiac or systemic condition. Its most important hemodynamic consequence is left ventricular outflow tract (LVOT) obstruction. The primary management strategy of this condition is surgical septal myectomy, but an acceptable alternative treatment in patients who are not suitable for (or who refuse) surgery is alcohol septal ablation (ASA). However, in patients with unfavorable coronary anatomy which precludes ASA (i...
February 2017: Cardiology Research
https://www.readbyqxmd.com/read/28247219/concomitant-septal-myectomy-during-minimally-invasive-aortic-valve-replacement-through-a-right-mini-thoracotomy-for-the-treatment-of-aortic-stenosis-with-systolic-anterior-motion-of-the-mitral-valve
#5
Toshinori Totsugawa, Kota Suzuki, Arudo Hiraoka, Kentaro Tamura, Hidenori Yoshitaka, Taichi Sakaguchi
This paper reports concomitant septal myectomy during minimally invasive aortic valve replacement through a right mini-thoracotomy. A 76-year-old woman was diagnosed as having aortic stenosis with systolic anterior motion of the mitral valve. The bulging septum was exposed by pulling up a traction suture placed at the annulus of the right coronary cusp; the anomalous chordae and muscle bundles attached to the septum were also resected. By setting an adequate intercostal thoracotomy and placing a traction suture, concomitant myectomy was safely performed even through a right mini-thoracotomy...
March 1, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28240432/two-dimensional-strain-echocardiography-technology-for-evaluation-of-myocardial-strain-in-swimming-athletes-after-high-intensity-exercise
#6
Chen Liang, Yun Ma, Can Gao, Jianhong Zhang, Min Yang, Gen Chen, Shan Fu, Tiangang Zhu
OBJECTIVE: The aim of this study was to investigate the change in myocardial strain in swimming athletes before and after high-intensity exercise using two-dimensional strain echocardiography (2DSE) technology. METHODS: To assess whether the local and overall myocardial function and myocardial injury are accurately measured using 2DSE technology, 15 swimming athletes were selected as research objects. We applied 2DSE technology to track the 2D ultrasound images of the apical four chambers, the apical two chambers, and the apical long axis before and after high-intensity, increasing-load exercise...
February 2017: Echocardiography
https://www.readbyqxmd.com/read/28203542/robotic-trans-atrial-and-trans-mitral-ventricular-septal-resection
#7
REVIEW
W Randolph Chitwood
Localized ventricular septal hypertrophy, also known as idiopathic hypertrophic subaortic stenosis or idiopathic hypertrophic subaortic septal obstruction (IHSS), can create severe ventricular outflow obstruction. This often results in a high sub-aortic pressure gradient with potentially lethal symptoms. In 1960, Braunwald described the hemodynamic characteristics of IHSS, and thereafter, Morrow developed a trans-aortic approach to resect a large part of the ventricular septum, enlarging the outflow tract. The Morrow operation has remained the gold standard for surgically treating this pathology...
January 2017: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28127135/st-elevation-acute-myocardial-infarction-due-to-arterial-thrombosis-in-a-29-year-old-woman-with-normal-coronary-arteries
#8
Eneida Male, Talitha Morton, Adam Farber, Jeffrey Michel
Acute myocardial infarction (AMI) is rare in young adults. We present a case of a 29-year-old black woman who presented with an acute onset of chest pain while sleeping. Anterior wall ST-elevation AMI was diagnosed based on clinical presentation, electrocardiographic findings, and elevated cardiac biomarkers. Coronary angiography revealed a totally occluded proximal left anterior descending artery. The obstructing lesion, thrombus, was removed. There was no evidence of atherosclerotic disease or dissection...
January 2017: Proceedings of the Baylor University Medical Center
https://www.readbyqxmd.com/read/28106968/robotic-mitral-repair-with-sliding-leaflet-valvuloplasty-and-remodelling-partial-annuloplasty
#9
Lawrence Wei, Vinay Badhwar, Takashi Murashita, Giuseppe Raffa
Complex pathoanatomy that requires posterior leaflet height reduction can be accomplished robotically with excellent surgical outcomes. We report the technique of robotic sliding leaflet valvuloplasty in cases of severe myxomatous degenerative disease with elevated predictive risk of systolic anterior motion.
September 28, 2016: Multimedia Manual of Cardiothoracic Surgery: MMCTS
https://www.readbyqxmd.com/read/28104197/simplified-mitral-valve-repair-in-pediatric-patients-with-connective-tissue-disorders
#10
Luca A Vricella, William A Ravekes, Eloisa Arbustini, Robert D B Jaquiss, Constantine Mavroudis, Harry C Dietz, Marshall L Jacobs, Narutoshi Hibino, Duke E Cameron
BACKGROUND: In pediatric patients with connective tissue disorders (CTDs), early cardiac presentation often involves severe mitral regurgitation (MR) associated with severe bileaflet prolapse and, less frequently, aortic root enlargement. We adopted a simplified repair to address MR and prevent systolic anterior motion (SAM) in this unique group of patients. MATERIALS AND METHODS: Retrospective review of clinical and echocardiographic data of all pediatric patients (age < 18 years) with CTD and MR undergoing simplified repair at 3 institutions (2000-2014)...
February 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28096824/extended-myectomy-in-the-treatment-of-patients-with-hypertrophic-obstructive-cardiomyopathy
#11
Mateusz Kuć, Piotr Kołsut, Jacek Różański, Maciej Dąbrowski, Mariusz Kłopotowski, Magda Kumor, Mirosław Kowalski, Natalia Kopyłowska, Jarosław Kuriata, Mariusz Kuśmierczyk
INTRODUCTION: Partial resection of the septal muscle is a well-established and effective method of surgical treatment for patients with hypertrophic obstructive cardiomyopathy (HOCM). The procedure is characterized by a low operative mortality rate and long-term clinical improvement that has been confirmed in numerous publications. Mitral insufficiency in patients with HOCM is mostly functional due to the effect of systolic anterior motion (SAM). AIM: To present the early results of surgical treatment provided to HOCM patients and to compare the effectiveness of two surgical procedures: isolated myectomy and myectomy combined with mitral valve replacement...
December 2016: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/28095388/the-use-of-mitraclip-for-symptomatic-patients-with-hypertrophic-obstructive-cardiomyopathy
#12
Felix Thomas, Florian Rader, Robert J Siegel
OBJECTIVES: Current nonpharmacological therapies for symptomatic patients with hypertrophic obstructive cardiomyopathy (HOCM), including septal myectomy and alcohol septal ablation (ASA), carry significant risks for serious cardiac conduction abnormalities. We present a review of the currently available published data regarding the novel use of the relatively low-risk MitraClip® system in the treatment of symptomatic patients. METHODS: Data were collected from 4 separate studies on the use of the MitraClip on 15 symptomatic HOCM patients with systolic anterior motion (SAM) of the mitral valve apparatus...
January 18, 2017: Cardiology
https://www.readbyqxmd.com/read/28079765/early-recurrence-of-tako-tsubo-cardiomyopathy-in-an-elderly-woman-with-amyotrophic-lateral-sclerosis-different-triggers-inducing-different-apical-ballooning-patterns
#13
Francesco Santoro, Riccardo Ieva, Armando Ferraretti, Elena Carapelle, Luisa De Gennaro, Luigi Maria Specchio, Matteo Di Biase, Natale Daniele Brunetti
We report the case of early recurrence of Tako-Tsubo cardiomyopathy in an elderly woman with amyotrophic lateral sclerosis triggered by different stressors. A first episode with typical apical ballooning was anticipated by an emotional stress; a second, characterized by systolic anterior motion of the mitral valve associated with mitral regurgitation and severe intra-ventricular gradient, was precipitated by surgical stress and hypovolemia. We therefore hypothesize both a possible link between amyotrophic lateral sclerosis and Tako-Tsubo cardiomyopathy, and between different stressors and different Tako-Tsubo patterns...
January 11, 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28040272/myocardial-strain-may-be-useful-in-differentiating-takotsubo-cardiomyopathy-from-left-anterior-descending-coronary-artery-ischemia
#14
LiYing Cai, Karima Addetia, Diego Medvedofsky, Kirk T Spencer
BACKGROUND: Stress-induced cardiomyopathy (SCM) is characterized by transient apical wall motion abnormalities of the left ventricle (LV) in the absence of obstructive coronary artery disease. Although the echocardiographic findings of SCM mimic those of left anterior descending coronary artery ischemia or infarction (LAD), the regional LV wall motion pattern and degree of RV involvement may differ. METHODS: We sought to systematically assess regional LV and RV function with myocardial strain imaging to assess if ventricular involvement may differ between SCM and LAD...
March 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28008249/a-novel-hydrodynamic-approach-of-drag-reducing-polymers-to-improve-left-ventricular-hypertrophy-and-aortic-remodeling-in-spontaneously-hypertensive-rats
#15
Xinlu Zhang, Xu Wang, Feng Hu, Boda Zhou, Hai-Bin Chen, Daogang Zha, Yili Liu, Yansong Guo, Lemin Zheng, Jiancheng Xiu
Drag-reducing polymers (DRPs), when added in minute concentrations, have been shown to decrease peripheral vascular resistance. In this study, the effect of DRPs on the hypertension-induced left ventricular hypertrophy and aortic remodeling was evaluated in spontaneously hypertensive rats (SHR). Male SHR and age-matched Wistar rats were divided into four groups and received intravenous injection of normal saline (NS) or DRPs. Body weight (BW), heart rate (HR) and systolic blood pressure (SBP) were measured...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28007871/hypertrophic-cardiomyopathy-the-edge-to-edge-secures-the-correction-of-the-systolic-anterior-motion
#16
Jean François Obadia, Nils Basillais, Xavier Armoiry, Daniel Grinberg, Andrei Dondas, Martine Barthelet, François Derimay, Gilles Rioufol, Gerard Finet, Matteo Pozzi
OBJECTIVES: Although septal myectomy is the technique of choice for hypertrophic cardiomyopathy, the surgical management of concomitant mitral valve lesions is controversial. Various complex surgeries have been proposed to address mitral valve lesions. We propose a simple option using an edge-to-edge mitral valve repair through the aortic valve in addition to the septal myectomy. METHODS: We performed an observational analysis of our prospectively collected database...
December 22, 2016: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28007267/off-pump-neochord-mitral-valve-repair-to-simultaneously-treat-posterior-leaflet-prolapse-and-systolic-anterior-motion
#17
Stefano Salizzoni, Matteo Marro, Chiara Rovera, Giovanni Speziali, Mauro Rinaldi
This case represents the first report of complete elimination of systolic anterior motion by beating-heart implantation of artificial chordae tendineae on a prolapsing and redundant posterior leaflet.
January 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27989044/treatment-of-mitral-valve-regurgitation-with-an-open-rigid-annuloplasty-ring
#18
Clement Venner, Olivier Huttin, Antonio Fiore, Cristina Sirbu, Jean-Pierre Villemot, Juan-Pablo Maureira
BACKGROUND: Annuloplasty constitutes a major operative step in the surgical treatment of degenerative mitral valve regurgitation (MR). The choice of ring structure to obtain an adequate remodeling of the mitral orifice and to respect the motion of the mitral apparatus remains the subject of debate. The study aim was to determine the clinical and echocardiographic outcome when using an open rigid ring to treat MR. METHODS: A total of 129 patients (94 men, 35 women; mean age 64...
May 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/27973580/a-small-molecule-inhibitor-of-sarcomere-contractility-acutely-relieves-left-ventricular-outflow-tract-obstruction-in-feline-hypertrophic-cardiomyopathy
#19
Joshua A Stern, Svetlana Markova, Yu Ueda, Jae B Kim, Peter J Pascoe, Marc J Evanchik, Eric M Green, Samantha P Harris
Hypertrophic cardiomyopathy (HCM) is an inherited disease of the heart muscle characterized by otherwise unexplained thickening of the left ventricle. Left ventricular outflow tract (LVOT) obstruction is present in approximately two-thirds of patients and substantially increases the risk of disease complications. Invasive treatment with septal myectomy or alcohol septal ablation can improve symptoms and functional status, but currently available drugs for reducing obstruction have pleiotropic effects and variable therapeutic responses...
2016: PloS One
https://www.readbyqxmd.com/read/27970198/tct-810-percutaneous-mitral-valve-repair-for-management-of-systolic-anterior-motion-and-mitral-regurgitation-associated-with-hypertrophic-cardiomyopathy
#20
Saurabh Gupta, Elizabeth Moe, Matthew Slater, Stephen Heitner
No abstract text is available yet for this article.
November 1, 2016: Journal of the American College of Cardiology
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