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Systolic anterior motion

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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
#1
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
#2
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...
December 21, 2016: 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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
https://www.readbyqxmd.com/read/27957348/exercise-stress-echocardiography-reveals-systolic-anterior-motion-of-the-mitral-valve-as-a-cause-of-syncopes-in-a-cardiac-amyloidosis-patient
#9
Tor Skibsted Clemmensen, Henning Mølgaard, Niels Frost Andersen, Steen Baerentzen, Steen Hvitfeldt Poulsen
Patients with cardiac amyloidosis are at increased AV-block and syncope risk. Therefore, a prophylactic pacemaker is often implanted. However, this case illustrates that other mechanisms should be ruled out prior to pacemaker implantation. The patient studied had mitral valve thickening without increased left ventricular outflow track (LVOT) velocity. However, bicycle exercise-stress test with simultaneous echocardiography revealed a stepwise decrease in blood pressure, a substantial increase in the LVOT velocity, and severe systolic anterior motion of the mitral valve...
2016: Case Reports in Cardiology
https://www.readbyqxmd.com/read/27956911/association-between-latest-activated-sites-in-the-left-ventricle-and-akinetic-segments-in-patients-with-ischemic-cardiomyopathy
#10
Hakimeh Sadeghian, Aliasghar Kousari, Shahla Majidi, Mehrnaz Rezvanfard, Ali Kazemisaeid, Seyed Ali Moezzi, Ali Vasheghani Farahani, Morteza Abdar Esfahani, Mohammad Sahebjam, Arezoo Zoroufian, Afsaneh Sadeghian
Background: It is not clear whether the latest activation sites in the left ventricle (LV) are matched with infracted regions in patients with ischemic cardiomyopathy (ICM). We aimed to investigate whether the latest activation sites in the LV are in agreement with the region of akinesia in patients with ICM. Methods: Data were analyzed in 106 patients (age = 60.5 ± 12.1 y, male = 88.7%) with ICM (ejection fraction ≤ 35%) who were refractory to pharmacological therapy and were referred to the echocardiography department for an evaluation of the feasibility of cardiac resynchronization therapy...
July 6, 2016: Journal of Tehran Heart Center
https://www.readbyqxmd.com/read/27847070/mitraclip-implantation-for-the-treatment-of-new-onset-systolic-anterior-motion-of-the-mitral-valve-after-transcatheter-aortic-valve-replacement
#11
Carmelo Grasso, Salvatore Scandura, Sergio Buccheri, Marco Barbanti, Maria Elena Di Salvo, Sarah Mangiafico, Giuseppe Ronsivalle, Sebastiano Immé, Claudia Tamburino, Martina Patané, Carmelo Sgroi, Davide Capodanno, Piera Capranzano, Corrado Tamburino
New-onset systolic anterior motion of the anterior mitral valve leaflet in patients undergoing transcatheter aortic valve replacement is a rare pathophysiologic mechanism leading to postprocedural development of mitral regurgitation and, eventually, left ventricular outflow obstruction. We report the first human case of successful MitraClip implantation to treat new-onset systolic anterior motion of the mitral valve after transcatheter aortic valve replacement causing severe obstruction to left ventricular outflow that was unresponsive to standard medical therapy...
December 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27842948/systolic-anterior-motion-after-myocardial-revascularization-the-unusual-suspect
#12
Khurram Owais, Faraz Mahmood, Kamal R Khabbaz, Robina Matyal
No abstract text is available yet for this article.
September 3, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/27738070/mapping-guided-characterization-of-mechanical-and-electrical-activation-patterns-in-patients-with-normal-systolic-function-using-a-sensor-based-tracking-technology
#13
Christopher Piorkowski, Ole-A Breithardt, Hedi Razavi, Yelena Nabutovsky, Stuart P Rosenberg, Craig D Markovitz, Arash Arya, Sascha Rolf, Silke John, Jedrzej Kosiuk, Eric Olson, Charlotte Eitel, Yan Huo, Michael Döring, Sergio Richter, Kyungmoo Ryu, Thomas Gaspar, Frits W Prinzen, Gerhard Hindricks, Philipp Sommer
AIMS: In times of evolving cardiac resynchronization therapy, intra-procedural characterization of left ventricular (LV) mechanical activation patterns is desired but technically challenging with currently available technologies. In patients with normal systolic function, we evaluated the feasibility of characterizing LV wall motion using a novel sensor-based, real-time tracking technology. METHODS AND RESULTS: Ten patients underwent simultaneous motion and electrical mapping of the LV endocardium during sinus rhythm using electroanatomical mapping and navigational systems (EnSite™ NavX™ and MediGuide™, SJM)...
October 12, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27726435/all-shock-states-are-not-the-same-systolic-anterior-motion-of-mitral-valve-causing-left-ventricular-outflow-tract-obstruction-in-septic-shock
#14
Siddharth Dugar, Mani Latifi, Ajit Moghekar, Abhijit Duggal
No abstract text is available yet for this article.
October 2016: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/27687190/mitral-regurgitation-in-patients-with-hypertrophic-obstructive-cardiomyopathy-implications-for-concomitant-valve-procedures
#15
Joon Hwa Hong, Hartzell V Schaff, Rick A Nishimura, Martin D Abel, Joseph A Dearani, Zhuo Li, Steve R Ommen
BACKGROUND: Incidence and outcome of mitral valve (MV) surgery are unknown in patients with hypertrophic obstructive cardiomyopathy (HOCM) undergoing extended transaortic septal myectomy. OBJECTIVES: This study sought to define indications and suitable operative strategy for mitral regurgitation (MR) in patients with HOCM. METHODS: A total of 2,107 septal myectomy operations performed in adults from January 1993 to May 2014 at Mayo Clinic in Rochester, Minnesota, were retrospectively reviewed...
October 4, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27681858/robotic-mitral-repair-with-sliding-leaflet-valvuloplasty-and-remodelling-partial-annuloplasty
#16
Takashi Murashita, Giuseppe M Raffa, Lawrence M Wei, Vinay Badhwar
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.
2016: Multimedia Manual of Cardiothoracic Surgery: MMCTS
https://www.readbyqxmd.com/read/27641783/quantification-of-coronary-artery-motion-and-internal-risk-volume-from-ecg-gated-radiotherapy-planning-scans
#17
Tejinder Kataria, Shyam Singh Bisht, Deepak Gupta, Ashu Abhishek, Trinanjan Basu, Kushal Narang, Shikha Goyal, Pragya Shukla, Manish Bansal, Hardeep Grewal, Kulbeer Ahlawat, Susovan Banarjee, Manoj Tayal
BACKGROUND: Radiotherapy for carcinoma of breast and thoracic structures involves inadvertent radiation to heart and coronary arteries (CA). Coronary artery stenosis in high radiation dose segments has been documented. Cardiac and respiratory motion induced displacement of CA and internal risk volume (IRV) margin remains inadequately quantified. MATERIAL AND METHODS: Twenty cases of carcinoma breast, lung and lung metastasis were enrolled in this study. ECG gated intravenous contrast enhanced computed tomography (CECT) scans were performed in inspiratory breath hold (IBH) and expiratory breath hold (EBH)...
September 15, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/27639515/hypovolemia-induced-systolic-anterior-motion-of-the-mitral-valve-in-two-dogs
#18
K Hammes, J Novo Matos, M Baron Toaldo, T Glaus
Systolic anterior (septal) motion of the mitral valve (SAM) is a common secondary phenomenon in hypertrophic cardiomyopathy (HCM) in people and cats. In humans, it is increasingly recognized that SAM may be found in other cardiac and non-cardiac disease states. In small animal cardiology, SAM unassociated with HCM has been described in dogs with mitral valve dysplasia and right ventricular pressure overload. In this report, we describe two cases of dogs where transient SAM was caused by hypovolemia. When SAM was present both dogs showed pseudohypertrophy and tachycardia...
December 2016: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/27569231/percutaneous-ventricular-restoration-therapy-using-the-parachute-device-in-chinese-patients-with-ischemic-heart-failure-three-month-primary-end-point-results-of-parachute-china-study
#19
Yue-Jin Yang, Yong Huo, Ya-Wei Xu, Jian-An Wang, Ya-Ling Han, Jun-Bo Ge, Rui-Yan Zhang, Xiao-Yan Yan, Run-Lin Gao
BACKGROUND: The primary cause of ischemic heart failure (HF) is myocardial infarction (MI) resulting in left ventricle (LV) wall motion abnormality secondary to ventricular remodeling. A prospective, nonrandomized study conducted in China was designed to assess safety and efficacy of the percutaneous ventricular restoration therapy using Parachute device (CardioKinetix, Inc., CA, USA) in ischemic HF patients as a result of LV remodeling after anterior wall MI. METHODS: Thirty-one patients with New York Heart Association (NYHA) Class II, III ischemic HF, ejection fraction between 15% and 40%, and dilated akinetic or dyskinetic anterior-apical wall without the need to be revascularized were enrolled from seven sites in China from October to December 2014...
2016: Chinese Medical Journal
https://www.readbyqxmd.com/read/27567136/medical-management-%C3%AE-blocker-%C3%A2-disopyramide-of-left-ventricular-outflow-gradient-secondary-to-systolic-anterior-motion-of-the-mitral-valve-after-repair
#20
Devin W Kehl, Florian Rader, Charles Pollick, Alfredo Trento, Robert J Siegel
Systolic anterior motion of the mitral valve (SAM) occurs intraoperatively after mitral valve repair (MVRr) in up to 14% of cases and typically resolves in the operating room with conservative measures. Less commonly SAM may also occur in the early or late postoperative period. The clinical course and optimal management of such cases is poorly defined, but reoperation is common. We describe our experience using disopyramide to successfully treat postoperative SAM refractory to beta blockade. Seven patients were retrospectively identified with mitral valve prolapse who underwent MVRr from 2003 to 2015 and were found during follow-up to have severe SAM with a left ventricular outflow tract (LVOT) gradient not observed intraoperatively...
October 1, 2016: American Journal of Cardiology
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