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Systolic anterior motion

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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
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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...
September 14, 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
#9
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
#10
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
https://www.readbyqxmd.com/read/27559948/harmful-effect-of-epinephrine-on-postreperfusion-syndrome-in-an-elderly-liver-transplantation-recipient-with-sigmoid-ventricular-septum-a-case-report
#11
Young-Jin Moon, Ji Hyun Park, JongEun Oh, Sooho Lee, Gyu-Sam Hwang
INTRODUCTION: As a common morphological change of aging heart, sigmoid ventricular septum is frequently found during routine preoperative evaluation, but often disregarded because of its little clinical importance. However, in this report, we describe a 70-year old patient with sigmoid ventricular septum who developed severe hemodynamic deterioration during liver transplantation because of its unique morphology of heart. METHODS: During the course of reperfusion of the graft, patient's hemodynamics were closely monitored using transesophageal echocardiography...
August 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27543440/doppler-echocardiographic-myocardial-stunning-index-predicts-recovery-of-left-ventricular-systolic-function-after-primary-percutaneous-coronary-intervention
#12
Dawod Sharif, Wisam Matanis, Amal Sharif-Rasslan, Uri Rosenschein
BACKGROUND: Myocardial stunning is responsible for partially reversible left ventricular (LV) systolic dysfunction after successful primary percutaneous coronary intervention (PPCI) in patients with acute ST-elevation myocardial infarction (STEMI). AIM: To test the hypothesis that early coronary blood flow (CBF) to LV systolic function ratios, as an equivalent to LV stunning index (SI), predict recovery of LV systolic function after PPCI in patients with acute STEMI...
August 20, 2016: Echocardiography
https://www.readbyqxmd.com/read/27522670/multilayer-longitudinal-strain-at-rest-may-help-to-predict-significant-stenosis-of-the-left-anterior-descending-coronary-artery-in-patients-with-suspected-non-st-elevation-acute-coronary-syndrome
#13
Chong Liu, Jing Li, Min Ren, Zhen-Zhen Wang, Zi-Yao Li, Fei Gao, Jia-Wei Tian
Two-dimensional speckle tracking echocardiography (2D-STE) multilayer analysis of myocardial deformation is a non-invasive method that enables discrimination of transmural differences owing to myocardial ischemia or necrosis. We wished to ascertain if multilayer longitudinal strains at rest are associated with significant (≥70 %) stenosis of the left anterior descending coronary artery (LAD) in patients with suspected non-ST-elevation acute coronary syndrome (NSTE-ACS). Our cohort comprised 113 consecutive patients with suspected NSTE-ACS and preserved ejection fraction (EF)...
August 13, 2016: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/27401021/trans-aortic-alfieri-stitch-at-the-time-of-septal-myectomy-for-hypertrophic-obstructive-cardiomyopathy
#14
Asad A Shah, Donald D Glower, Jeffrey G Gaca
BACKGROUND: Systolic anterior motion (SAM) of the mitral valve, left ventricular outflow tract (LVOT) obstruction, and mitral regurgitation (MR) are known adverse outcomes that can occur after septal myectomy for hypertrophic obstructive cardiomyopathy. The objective of this study was to describe outcomes of a surgical technique to prevent these complications. METHODS: We have adopted a technique where we place an Alfieri stitch in the mitral valve through the aortotomy while performing septal myectomy...
August 2016: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/27392141/myocardial-infarction-induced-by-oral-terazosin-in-a-patient-with-predisposing-structural-cardiomyopathy-case-report
#15
Alejandro Vidal Margenat, Federico Ferrando-Castagnetto, Fabián Martínez, Natalia Lluberas, Gustavo Vignolo
We describe a 71-year-old male patient who developed acute myocardial infarction (AMI) due to a dynamic left ventricular outflow tract obstruction induced by terazosin. After receiving terazosin, the patient had a syncope followed by angina. The electrocardiogram showed Q waves and ST segment elevation in the precordial and inferior leads. Coronary angiography evidenced a chronically occluded left anterior descending artery. Doppler-echocardiography revealed apical akinesia, hyperdynamic basal segments, systolic anterior motion of the mitral valve (SAM) and dynamic left ventricular outflow tract obstruction...
2016: Medwave
https://www.readbyqxmd.com/read/27378096/asymmetric-pulsation-of-rat-carotid-artery-bifurcation-in-three-dimension-observed-by-ultrasound-imaging
#16
Changzhu Jin, Kweon-Ho Nam, Dong-Guk Paeng
The arterial structure cyclically fluctuates in three-dimensions (3-D) caused by pulsatile blood flow. The evaluation of arterial wall motion and hemodynamics contributes to early diagnosis of carotid atherosclerosis. Ultrasound is one of the most appropriate imaging modalities to evaluate arterial wall motion in real time. Although many previous studies have discussed the mechanical properties of the carotid artery bifurcation (CAB) from the two-dimensional (2-D) view, the spatio-temporal variation of carotid artery geometry in 3-D has not yet been investigated in detail...
October 2016: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/27368925/hypertensive-heart-disease-versus-hypertrophic-cardiomyopathy-multi-parametric-cardiovascular-magnetic-resonance-discriminators-when-end-diastolic-wall-thickness-%C3%A2-15-mm
#17
Jonathan C L Rodrigues, Stephen Rohan, Amardeep Ghosh Dastidar, Iwan Harries, Christopher B Lawton, Laura E Ratcliffe, Amy E Burchell, Emma C Hart, Mark C K Hamilton, Julian F R Paton, Angus K Nightingale, Nathan E Manghat
OBJECTIVES: European guidelines state left ventricular (LV) end-diastolic wall thickness (EDWT) ≥15mm suggests hypertrophic cardiomyopathy (HCM), but distinguishing from hypertensive heart disease (HHD) is challenging. We identify cardiovascular magnetic resonance (CMR) predictors of HHD over HCM when EDWT ≥15mm. METHODS: 2481 consecutive clinical CMRs between 2014 and 2015 were reviewed. 464 segments from 29 HCM subjects with EDWT ≥15mm but without other cardiac abnormality, hypertension or renal impairment were analyzed...
July 1, 2016: European Radiology
https://www.readbyqxmd.com/read/27357867/outcomes-of-an-extended-morrow-procedure-without-a-concomitant-mitral-valve-procedure-for-hypertrophic-obstructive-cardiomyopathy
#18
Yun Liu, Yunhu Song, Ge Gao, Jun Ran, Wenjun Su, Haojie Li, Yajie Tang, Fujian Duan, Hansong Sun
The indications for a concomitant mitral valve (MV) procedure remain controversial for patients with hypertrophic obstructive cardiomyopathy (HOCM). According to previous studies, a concomitant MV surgery was required in 11-20% of inpatient operations. Thus, we aimed to study the outcomes of an extended Morrow procedure without a concomitant MV procedure for HOCM patients who had no intrinsic abnormalities of the MV apparatus. We retrospectively reviewed 232 consecutive HOCM patients who underwent extended Morrow procedures from January 2010 to October 2014...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27331931/volumetric-single-beat-coronary-computed-tomography-angiography-relationship-of-image-quality-heart-rate-and-body-mass-index-initial-patient-experience-with-a-new-computed-tomography-scanner
#19
Muhammad Aamir Latif, Frank W Sanchez, Karl Sayegh, Emir Veledar, Muhammad Aziz, Rehan Malik, Imran Haider, Arthur S Agatston, Juan C Batlle, Warren Janowitz, Constantino Peña, Jack A Ziffer, Khurram Nasir, Ricardo C Cury
BACKGROUND: Cardiac computed tomography (CT) image quality (IQ) is very important for accurate diagnosis. We propose to evaluate IQ expressed as Likert scale, signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR) from coronary CT angiography images acquired with a new volumetric single-beat CT scanner on consecutive patients and assess the IQ dependence on heart rate (HR) and body mass index (BMI). METHODS: We retrospectively analyzed the data of the first 439 consecutive patients (mean age, 55...
September 2016: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/27311518/first-experience-with-percutaneous%C3%A2-mitral%C3%A2-valve-plication-as-primary-therapy%C3%A2-for-symptomatic-obstructive-hypertrophic-cardiomyopathy
#20
Paul Sorajja, Wesley A Pedersen, Richard Bae, John R Lesser, Desmond Jay, David Lin, Kevin Harris, Barry J Maron
BACKGROUND: Few therapeutic options exist for patients with severe heart failure due to obstructive hypertrophic cardiomyopathy (HCM) who are at unacceptable surgical risk. We hypothesized that percutaneous plication of the mitral valve could reduce left ventricular outflow tract (LVOT) obstruction and associated mitral regurgitation, thereby leading to amelioration of heart failure symptoms. OBJECTIVES: This study sought to evaluate the potential effectiveness of percutaneous mitral valve plication as a therapy for patients with symptomatic, obstructive HCM...
June 21, 2016: Journal of the American College of Cardiology
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