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https://www.readbyqxmd.com/read/28344414/three-dimensional-echocardiography-current-status-and-real-life-applications
#1
REVIEW
Victor Chien-Chia Wu, Masaaki Takeuchi
The use of cardiac ultrasound is fundamental to the understanding of normal heart function and crucial to pathophysiological diagnosis. The growing availability of 3D echocardiography (3DE) over the last decade has allowed its applications to expand from establishing reference values for chamber size and elucidating ventricular mechanics, to assessing valvular disease severity and playing pivotal roles in interventional procedures. Several important advantages of 3DE include eliminating geometric assumptions, quantifying complex geometric shape volumes, viewing structures from any perspective, assessing lesion in simultaneous multiplanes or multislice mode, all of which are not possible with traditional 2D echocardiography (2DE)...
March 2017: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/28344125/capadenoson-a-clinically-trialed-partial-adenosine-a1-receptor-agonist-can-stimulate-adenosine-a2b-receptor-biased-agonism
#2
Jo-Anne Baltos, Elizabeth A Vecchio, Matthew A Harris, Cheng Xue Qin, Rebecca H Ritchie, Arthur Christopoulos, Paul J White, Lauren T May
The adenosine A2B receptor (A2BAR) has been identified as an important therapeutic target in cardiovascular disease, however in vitro and in vivo targeting has been limited by the paucity of pharmacological tools, particularly potent agonists. Interestingly, 2-((6-amino-3,5-dicyano-4-(4-(cyclopropylmethoxy)phenyl)-2-pyridinyl)thio)acetamide (BAY60-6583), a potent and subtype-selective A2BAR agonist, has the same core structure as 2-amino-6-[[2-(4-chlorophenyl)-1,3-thiazol-4-yl]methylsulfanyl]-4-[4-(2-hydroxyethoxy)phenyl]pyridine-3,5-dicarbonitril (capadenoson)...
March 23, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28343891/an-investigation-on-the-effects-of-the-angles-between-the-mitral-and-aortic-orifice-during-diastolic-period-using-fsi
#3
Md Shamsul Arefin
BACKGROUND: It was well documented that the changes in the physiological structure of the heart can alter the hemodynamic behaviour of the human left ventricle. Although there were various imaging tools that can stipulate the blood flow characteristics inside the ventricle, but the effect of the variation in the angles between the mitral and aortic orifices were yet to be determined. Hence the primary focus of this paper was to use Fluid-Structure Interaction scheme throughout the diastolic phase to examine and determine the hemodynamic behaviour inside the cavity under various angles between the mitral and aortic orifices (50°, 55° and 60°)...
March 18, 2017: Pathophysiology: the Official Journal of the International Society for Pathophysiology
https://www.readbyqxmd.com/read/28343798/assessment-of-a-novel-transdermal-selective-%C3%AE-1-blocker-the-bisoprolol-patch-for-treating-frequent-premature-ventricular-contractions-in-patients-without-structural-heart-disease
#4
Masaya Shinohara, Tadashi Fujino, Hideki Koike, Ken Kitahara, Toshio Kinoshita, Hitomi Yuzawa, Takeya Suzuki, Shunji Fukunaga, Kenzaburo Kobayashi, Jiro Aoki, Kengo Tanabe, Takanori Ikeda
BACKGROUND: The autonomic nervous system involves the genesis of premature ventricular contractions (PVCs). Previous studies demonstrated that heart rate (HR) dependency of idiopathic PVCs has different autonomic mechanisms. Recently, the bisoprolol patch, a novel transdermal β1-blocker formulation containing bisoprolol, became clinically available. We examined the efficacy of the bisoprolol patch for treating frequent PVCs in patients without structural heart disease (SHD) regarding the HR dependency of PVCs...
March 23, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28343629/biallelic-variants-in-otud6b-cause-an-intellectual-disability-syndrome-associated-with-seizures-and-dysmorphic-features
#5
Teresa Santiago-Sim, Lindsay C Burrage, Frédéric Ebstein, Mari J Tokita, Marcus Miller, Weimin Bi, Alicia A Braxton, Jill A Rosenfeld, Maher Shahrour, Andrea Lehmann, Benjamin Cogné, Sébastien Küry, Thomas Besnard, Bertrand Isidor, Stéphane Bézieau, Isabelle Hazart, Honey Nagakura, LaDonna L Immken, Rebecca O Littlejohn, Elizabeth Roeder, Bulent Kara, Katia Hardies, Sarah Weckhuysen, Patrick May, Johannes R Lemke, Orly Elpeleg, Bassam Abu-Libdeh, Kiely N James, Jennifer L Silhavy, Mahmoud Y Issa, Maha S Zaki, Joseph G Gleeson, John R Seavitt, Mary E Dickinson, M Cecilia Ljungberg, Sara Wells, Sara J Johnson, Lydia Teboul, Christine M Eng, Yaping Yang, Peter-Michael Kloetzel, Jason D Heaney, Magdalena A Walkiewicz
Ubiquitination is a posttranslational modification that regulates many cellular processes including protein degradation, intracellular trafficking, cell signaling, and protein-protein interactions. Deubiquitinating enzymes (DUBs), which reverse the process of ubiquitination, are important regulators of the ubiquitin system. OTUD6B encodes a member of the ovarian tumor domain (OTU)-containing subfamily of deubiquitinating enzymes. Herein, we report biallelic pathogenic variants in OTUD6B in 12 individuals from 6 independent families with an intellectual disability syndrome associated with seizures and dysmorphic features...
March 21, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/28342658/educational-needs-of-adolescents-with-congenital-heart-disease-impact-of-a-transition-intervention-programme
#6
Magalie Ladouceur, Johanna Calderon, Maladon Traore, Radhia Cheurfi, Christine Pagnon, Diala Khraiche, Fanny Bajolle, Damien Bonnet
BACKGROUND: Adolescents and young adults with congenital heart disease (CHD) have complex health needs and require lifelong follow-up. Interventions to facilitate the paediatric-to-adult healthcare transition are recommended, but outcomes remain largely under-investigated. AIMS: To identify the educational needs and the impact of a transition intervention on knowledge and self-management skills in adolescents and young adults with CHD. METHODS: From September 2014 to May 2015, 115 adolescents and young adults with CHD (mean age 17±2 years; 47 girls) were consecutively enrolled...
March 22, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28341588/targeted-next-generation-sequencing-of-51-genes-involved-in-primary-electrical-disease
#7
Dorien Proost, Johan Saenen, Geert Vandeweyer, Annelies Rotthier, Maaike Alaerts, Emeline M Van Craenenbroeck, Joachim Van Crombruggen, Geert Mortier, Wim Wuyts, Christiaan Vrints, Jurgen Del Favero, Bart Loeys, Lut Van Laer
Primary electrical disease (PED) is characterized by cardiac arrhythmias, which can lead to sudden cardiac death in the absence of detectable structural heart disease. PED encompasses a diversity of inherited syndromes, predominantly Brugada syndrome, early repolarization syndrome, long QT syndrome, short QT syndrome, arrhythmogenic right ventricular cardiomyopathy, and catecholaminergic polymorphic ventricular tachycardia. To overcome the diagnostic challenges imposed by the clinical and genetic heterogeneity of PED, we developed a targeted gene panel for next-generation sequencing of 51 PED genes...
March 21, 2017: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/28341373/drugs-to-prevent-sudden-cardiac-death
#8
Julia W Erath, Stefan H Hohnloser
Sudden cardiac death (SCD) remains a major public health burden despite enormous advances in post-resuscitation care, management of structural heart diseases, and antiarrhythmic treatment modalities. Primary and secondary prevention of sudden cardiac death require understanding of the underlying substrate causing ventricular arrhythmias and its modification by pharmacological (i.e. heart failure therapy) or interventional (catheter ablation) methods. Antiarrhythmic drug therapy has experienced ups and downs during the last 30years balancing high antiarrhythmic potential, toxic side effects and pro-arrhythmic potency...
March 18, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28341360/use-of-antiarrhythmic-medications-in-medicare-part-d-patients-with-an-implantable-cardioverter-defibrillator-and-ventricular-tachycardia
#9
Sean D Pokorney, Xiaojuan Mi, Bradley G Hammill, Nancy M Allen LaPointe, Lesley H Curtis, Sana M Al-Khatib
Ventricular tachycardia (VT) is common in cardiomyopathy patients with an implantable cardioverter-defibrillator. This analysis evaluated antiarrhythmic medication use and change in use over time in patients with VT and structural heart disease. Query of Medicare claims identified patients with an implantable cardioverter-defibrillator and VT. Patients with atrial fibrillation or supraventricular tachycardia were excluded. Two cohorts were created of patients enrolled in Medicare Part D for the 12 months before 2007 and 2012...
February 10, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28336153/quantification-and-comparison-of-the-mechanical-properties-of-four-human-cardiac-valves
#10
Thuy Pham, Fatiesa Sulejmani, Erica Shin, Di Wang, Wei Sun
OBJECTIVE: Although having the same ability to permit unidirectional flow within the heart, the four main valves-the mitral valve (MV), aortic (AV), tricuspid (TV) and pulmonary (PV) valves-experience different loading conditions; thus, they exhibit different structural integrity from one another. Most research on heart valve mechanics have been conducted mainly on MV and AV or an individual valve, but none quantify and compare the mechanical and structural properties among the four valves from the same aged patient population whose death was unrelated to cardiovascular disease...
March 20, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28333672/case-report-pediatric-scar-management-after-open-heart-surgery
#11
Ha Phan, Beau Harger, Nick Estrada
Tetralogy of Fallot is a congenital disease caused by structural defects within the heart that can lead to cyanosis. The purpose of this case report is to discuss the use of PracaSil-Plus, a proprietary topical anhydrous silicone base containing pracaxi oil, in scar-management therapy, following open-heart surgery on a pediatric patient with tetralogy of Fallot. The Patient and Observer Scar Assessment Scale was the research instrument used to evaluate for efficacy of the scar therapy. Following 8 weeks of treatment with PracaSil-Plus, reduction in scores were observed for scar color, stiffness, thickness, and irregularity, with improvements of 87...
July 2016: International Journal of Pharmaceutical Compounding
https://www.readbyqxmd.com/read/28333429/multimodality-imaging-to-plan-and-guide-transcatheter-tricuspid-valve-interventions
#12
Edgard A Prihadi, Victoria Delgado, Jeroen J Bax
Tricuspid regurgitation (TR) is a highly prevalent valvular heart disease. The natural history of untreated significant TR portends an unfavourable outcome, but only a minority of patients is currently referred for surgical treatment. Organic TR (caused by primary abnormality of the leaflets) is relatively infrequent whereas secondary or functional TR (caused by dilatation of the tricuspid annulus, right ventricle [RV] and right atrium) is the predominant mechanism. The success of transcatheter therapies for left valvular heart disease over the last decade, has fuelled similar development of novel transcatheter devices for the treatment of TR...
March 23, 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/28331455/exploring-patient-caregiver-and-healthcare-provider-perceptions-of-caring-for-patients-with-heart-failure-what-are-the-implications
#13
Betty M Kennedy, Vijayendra Jaligam, Beverly K Conish, William D Johnson, Brian Melancon, Peter T Katzmarzyk
BACKGROUND: Heart failure (HF) is an incurable and frequently progressive disease. Symptoms of HF may impair the ability of patients to perform daily living activities. As HF progresses, patients typically increase their reliance on caregivers. The purpose of this study was to determine what roles patients and caregivers perceive and desire for themselves in managing HF and to compare and contrast these roles with those perceived by healthcare providers. METHODS: A purposive sample (60 patients, 22 caregivers, and 11 healthcare providers) was enrolled in the study...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/28330662/pericardial-but-not-hepatic-fat-by-ct-is-associated-with-cv-outcomes-and%C3%A2-structure-the-multi-ethnic-study-of-atherosclerosis
#14
Ravi V Shah, Amanda Anderson, Jingzhong Ding, Matthew Budoff, Oliver Rider, Steffen E Petersen, Majken Karoline Jensen, Manja Koch, Matthew Allison, Nadine Kawel-Boehm, Jessica Wisocky, Michael Jerosch-Herold, Kenneth Mukamal, Joao A C Lima, Venkatesh L Murthy
OBJECTIVES: The study sought to determine the associations between local (pericardial) fat and incident cardiovascular disease (CVD) events and cardiac remodeling independent of markers of overall adiposity. BACKGROUND: The impact of pericardial fat-a local fat depot encasing the heart-on myocardial function and long-term CV prognosis independent of systemic consequences of adiposity or hepatic fat is an area of active debate. METHODS: We studied 4,234 participants enrolled in the MESA (Multi-Ethnic Study of Atherosclerosis) study with concomitant cardiac magnetic resonance imaging and computed tomography (CT) measurements for pericardial fat volume and hepatic attenuation (a measure of liver fat)...
March 10, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28329137/association-of-left-atrial-structure-and-function-and-incident-cardiovascular-disease-in-patients-with-diabetes-mellitus-results-from-multi-ethnic-study-of-atherosclerosis-mesa
#15
Timothy M Markman, Mohammadali Habibi, Bharath Ambale Venketash, Mytra Zareian, Colin Wu, Susan R Heckbert, David A Bluemke, Joao A C Lima
Aims: Diabetes mellitus (DM) is associated with the development of cardiovascular disease (CVD). Morphological changes in the left atrium (LA) may appear before symptoms. We aimed to investigate the association between cardiac magnetic resonance imaging (CMR) measured LA structure and function and incident CVD in asymptomatic individuals with DM. Methods and results: Tissue tracking CMR was used to measure LA size and phasic function (emptying fractions and strain) on all 536 Multi-Ethnic Study of Atherosclerosis (MESA) participants with DM and available CMR at baseline in 2000-2002...
February 28, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28329105/medical-three-dimensional-printing-opens-up-new-opportunities-in-cardiology-and-cardiac-surgery
#16
Thomas Bartel, Andrew Rivard, Alejandro Jimenez, Carlos A Mestres, Silvana Müller
Advanced percutaneous and surgical procedures in structural and congenital heart disease require precise pre-procedural planning and continuous quality control. Although current imaging modalities and post-processing software assists with peri-procedural guidance, their capabilities for spatial conceptualization remain limited in two- and three-dimensional representations. In contrast, 3D printing offers not only improved visualization for procedural planning, but provides substantial information on the accuracy of surgical reconstruction and device implantations...
February 16, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28329100/long-term-cardiovascular-changes-following-creation-of-arteriovenous-fistula-in-patients-with-end-stage-renal-disease
#17
Yogesh N V Reddy, Masaru Obokata, Patrick G Dean, Vojtech Melenovsky, Karl A Nath, Barry A Borlaug
Aims: Short-term studies have reported left ventricular (LV) dilatation following surgical creation of arteriovenous fistulas (AVF) or arteriovenous grafts (AVGs), but chronic cardiac structural and functional changes have not been examined or related to clinical outcomes following AVF/AVG. We sought to characterize the long-term changes in cardiac structure and function in patients undergoing shunt creation for haemodialysis. Methods and results: A retrospective analysis was performed of patients undergoing echocardiography before and after surgical AVF/AVG creation for the initiation of haemodialysis...
March 6, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28327144/computational-medical-imaging-and-hemodynamics-framework-for-functional-analysis-and-assessment-of-cardiovascular-structures
#18
REVIEW
Kelvin K L Wong, Defeng Wang, Jacky K L Ko, Jagannath Mazumdar, Thu-Thao Le, Dhanjoo Ghista
Cardiac dysfunction constitutes common cardiovascular health issues in the society, and has been an investigation topic of strong focus by researchers in the medical imaging community. Diagnostic modalities based on echocardiography, magnetic resonance imaging, chest radiography and computed tomography are common techniques that provide cardiovascular structural information to diagnose heart defects. However, functional information of cardiovascular flow, which can in fact be used to support the diagnosis of many cardiovascular diseases with a myriad of hemodynamics performance indicators, remains unexplored to its full potential...
March 21, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28325177/equine-cardiovascular-therapeutics
#19
REVIEW
Meg M Sleeper
Heart disease can be defined as any abnormality of the heart whether it is a cardiac dysrhythmia or structural heart disease, either congenital or acquired. Heart failure occurs when a cardiac abnormality results in the inability of the heart to pump enough blood to meet the body's needs. Heart disease can be present without leading to heart failure. Heart failure, however, is a consequence of heart disease. There are 4 main areas where the clinician can intervene to improve cardiac output with heart failure: preload, afterload, myocardial contractility, and heart rate...
April 2017: Veterinary Clinics of North America. Equine Practice
https://www.readbyqxmd.com/read/28322830/antidiabetic-antidyslipidemic-and-toxicity-profile-of-env-2-a-potent-pyrazole-derivative-against-diabetes-and-related-diseases
#20
Eduardo Hernández-Vázquez, Hugo Ocampo-Montalban, Litzia Cerón-Romero, Miguel Cruz, Jaime Gomez-Zamudio, Guadalupe Hiriart-Valencia, Rafael Villalobos-Molina, Angelica Flores-Flores, Samuel Estrada-Soto
Diabetes is a major health problem and a predisposition factor for further degenerative complications and, therefore, novel therapies are urgently needed. Currently, cannabinoid receptor 1 (CB1 receptor) antagonists have been considered as promissory entities for metabolic disorders treatment. Accordingly, the purpose of this work was the evaluation of the sub-acute antidiabetic, anti-hyperglycemic, antidyslipidemic and toxicological profile of ENV-2, a potent hypoglycemic and antioxidant CB1 receptor antagonist...
March 17, 2017: European Journal of Pharmacology
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