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Sardu Celestino - - 2014
The purpose of this study was to investigate the impact of metabolic syndrome (MS) on outcome of catheter ablation (CA) for treatment of frequent premature ventricular contraction beats (PVCs) originating from right ventricular outflow tract (RVOT), left ventricular outflow tract (LVOT) or coronary cusps (CUSPs), in patients with normal ventricular ...
Kapur Navin K NK 1 The Molecular Cardiology Research Institute and Surgical/Interventional Research Laboratories , Tufts Medical Center and Tufts University School of Medicine, 800 Washington Street, Boston, Massachusetts, 02339, - - 2014
Our objective was to examine the hemodynamic effects of a trans-aortic axial flow catheter (Impella CP) in the left ventricle (LV) versus left atrial (LA) to femoral artery bypass using a centrifugal pump (TandemHeart: TH) in a bovine model of acute LV injury. In 3 male calves, we performed sequential ...
Adamson Robert M RM Sharp Memorial Hospital, San Diego, - - 2014
Proper left ventricular assist device (LVAD) insertion will help maximize LVAD flow and may reduce adverse events such as right heart failure and pump thrombosis. Although no standardized insertion technique has been universally accepted, the goals are: unobstructed inflow cannula, unobstructed outflow graft with avoidance of right ventricular compression, and ...
Qiu Zhibing - - 2014
BackgroundCoronary endarterectomy (CE) is an alternative for the diffusely diseased left anterior descending (LAD), but its mid and long term results are largely questionable. This study is to compare the early to mid-term results between off-pump and on-pump coronary endarterectomy with coronary artery bypass grafting.Methods212 consecutive patients underwent CE and ...
Fishberger Steven B SB Division of Cardiology, Miami Children's Hospital, Miami, Florida; Division of Pediatric Cardiology, Yale-New Haven Medical Center, New Haven, - - 2014
Catheter ablation of idiopathic left ventricular tachycardia in the pediatric population remains challenging. A recent multicenter study reported limited success with 14% not undergoing ablation due to inability to induce ventricular tachycardia (VT) or blood pressure instability during tachycardia. Creating complete or partial fascicular block with radiofrequency catheter ablation is ...
Deng Yanping Y Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, - - 2014
The herb pair of Salvia miltiorrhiza and Panax notoginseng has widely been used for improving coronary and cerebral circulation in China. However, the exact contribution of the major active components of S. miltiorrhiza and P. notoginseng to cardioprotection is far from clear. In the present study, three representative ingredients, salvianolic ...
Bagur Rodrigo R Quebec University Hospital Centre, Laval University, Quebec City, Canada. rodrigo.bagur@fmed.ulaval.ca or - - 2014
The role of endomyocardial biopsy (EMB) in the diagnosis and treatment of adults presenting a newly unexplained cardiomyopathy remains controversial and the clinical indication varies among different centers. Furthermore, the choice of the ventricular site for EMB is still under debate. The right ventricular EMB is commonly used due to ...
Yamada Takumi T Division of Cardiovascular - - 2014
A 46-year-old man with atrial flutter (AFL) underwent electrophysiologic testing. He had a history of a heterotaxy syndrome with a persistent left superior vena cava (PLSVC) that was draining via the coronary sinus (CS) into the morphologic right atrium, infrahepatic interruption in the inferior vena cava (IVC) with an azygous/hemiazygous ...
Gargiulo G G Department of Advanced Biomedical Sciences, Federico II University of Naples - - - 2014
Intra--aortic balloon pump (IABP) counterpulsation is the most widely used form of left ventricular mechanical support today, with more than 160000 patients worldwide receiving this therapy annually. Currently, IABP support is indicated in patients with acute left ventricular systolic failure and cardiogenic shock whose management remains particularly complex and still ...
Quallich Stephen G SG Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, USA; Department of Surgery, University of Minnesota, Minneapolis, MN, - - 2014
Catheter perforations remain a major clinical concern during ablation procedures for treating atrial arrhythmias, and may lead to life-threatening cardiac tamponade. Radiofrequency (RF) ablation alters the biomechanical properties of cardiac tissue, ultimately allowing for perforation to occur more readily. Studies on the effects cryoablation has on perforation force, as well ...
Aldrighi José M JM Department of Obstetrics and Gynecology, School of Medical Sciences of Santa Casa, São Paulo, - - 2014
Polycystic ovary syndrome (PCOS) is associated with increased risk for cardiovascular disease. We sought to evaluate the effects of insulin resistance (IR) on myocardial microcirculation and peripheral artery function in patients with PCOS. We studied 55 women (28 with PCOS without IR, 18 with PCOS and IR and 11 normal ...
Van Praet K - - 2014
Extended anterior myocardial infarction (MI) is frequently followed by left ventricular (LV) remodeling ensuing in heart failure and aneurysmatic transformation of the infarcted myocardial segment. Therapies that attenuate or reverse pathological LV remodeling have been shown to improve functional status and outcomes. This case reports our recent experience with a ...
Sawamoto Keigo K Department of Emergency Medicine, Sapporo Medical University, Hokkaido, - - 2014
Takotsubo cardiomyopathy (TC) is an uncommon immune-endocrinologic cause of acute reversible heart failure, generally caused by some form of stress. We report a case of TC after hanging for attempted suicide. Upon admission, the patient demonstrated an almost entirely normal electrocardiogram (ECG) and mild hypotension. However, on the third day ...
Navaravong Leenhapong L Division of Cardiovascular Medicine, University of - - 2014
A 68-year-old woman with history of HTN and DM presented to our Electrophysiology (EP) Laboratory for EP study and catheter ablation of symptomatic supraventricular tachycardia (SVT). At baseline, 12-lead ECG showed normal sinus rhythm with normal PR interval and no manifest ventricular preexcitation. This article is protected by copyright. All ...
Squara Fabien F Department of Cardiology, Pasteur University Hospital, Nice, - - 2014
Capture of the myocardial sleeves of the pulmonary veins (PV) during PV pacing is mandatory for assessing exit block after PV isolation (PVI). However, previous studies reported that a significant proportion of PVs failed to demonstrate local capture after PVI. We designed this study to evaluate the prevalence and the ...
Unić Daniel D Department of Cardiac and Transplant Surgery, Dubrava University Hospital, Av. G. Šuška 6, HR-10 000, Zagreb, Croatia, - - 2014
The objective of this study was to evaluate the influence of cardiopulmonary bypass (CPB) on endothelin-1 (ET-1) expression in various circulation compartments in patients undergoing myocardial revascularization. A total of 30 patients were randomized to undergo myocardial revascularization with (CABG, n = 15) or without (OPCAB, n = 15) CPB. Samples were taken preoperatively, ...
Muresian Horia H Cardiovascular Surgery Department, The University Hospital of Bucharest, 169, Splaiul Independentei, Bucharest, - - 2014
Because the systemic and pulmonary circulations are arranged in series, the right and left ventricles of the human heart have similar stroke volumes (with only minute beat-to-beat changes). Besides propelling the same volume of blood through the corresponding circulations, the two ventricles also share common structures such as the pericardium, ...
Turkiewicz Aleksandra A Social Epidemiology, Department of Clinical Sciences, Faculty of Medicine, Lund University, Malmö, Sweden, - - 2014
The purpose of this study is to investigate if the prescription of proton-pump inhibitors (PPIs) was associated with a sudden risk of acute myocardial infarction (AMI) while controlling for time-invariant confounding by using a case-crossover design. An association might indicate that physicians take prodromal symptoms of myocardial ischaemia for dyspepsia. ...
Malliaras Konstantinos K 3rd Department of Cardiology, Laiko Hospital, University of Athens School of Medicine, 67 Mikras Asias Street, 11 527, Athens, Greece, - - 2014
We investigated the effects of intra-aortic balloon pump (IABP) counterpulsation on left ventricular (LV) contractility, relaxation, and energy consumption and probed the underlying physiologic mechanisms in 12 farm pigs, using an ischemia-reperfusion model of acute heart failure. During both ischemia and reperfusion, IABP support unloaded the LV, decreased LV energy ...
Chen Minglong M The First Affiliated Hospital of Nanjing Medical University, Nanjing, China - - 2014
-Accelerated idioventricular rhythm (AIVR) or ventricular tachycardia (VT) originating from the right bundle branch (RBB) is rare and published clinical data regarding such arrhythmia is scarce. In this study, we will describe the clinical manifestations, diagnosis and management of a cohort of patients with this novel arrhythmia. -Eight patients (5 ...
Müssigbrodt Andreas A Department of Electrophysiology, University of Leipzig, Heart Center, Leipzig, Germany. Electronic address: - - 2014
Radiofrequency catheter ablation is currently considered as the therapeutic option of choice in patients with arrhythmogenic right ventricular cardiomyopathy (ARVC) and recurrent ventricular tachycardia (VT). This study intended to assess the long-term outcome of catheter ablation in patients with ARVC and electrical storm. The specific objective was to assess the ...
Williams Rupert P RP Department of Cardiology, King's College London British Heart Foundation Centre of Excellence, The Rayne Institute, St. Thomas' Hospital Campus, London, UK Department of Cardiology, National Institute for Health Research Biomedical Research Centre at Guy's and St. Thomas' NHS Foundation Trust, London, - - 2014
The phenomenon of warm-up angina was first noted over 200 years ago. It describes the curious observation whereby exercise-induced ischaemia on second effort is significantly reduced or even abolished if separated from first effort by a brief rest period. However, the precise mechanism via which this cardio-protection occurs remains uncertain. Three ...
Spiering Mary M Kaiser Westside Medical Center, Portland, Oregon. Mary Spiering, MN, RN-BC, CNS, is a clinical nurse specialist at Kaiser Westside Medical Center. This study was completed at Providence St. Vincent Medical Center, Portland, Oregon, where she was a cardiology clinical nurse - - 2014
Intravenous amiodarone is one of the most widely used antiarrythmics for the treatment of atrial fibrillation with rapid ventricular response. Peripheral amiodarone infusion, however, often causes pain during infusion and subsequent phlebitis.Data collection on a cardiac telemetry unit revealed a high rate of phlebitis. A multidisciplinary team developed and implemented ...
Karaca Oguz O Medipol University Faculty of Medicine, Cardiology Department, Istanbul, - - 2014
Tako-tsubo cardiomyopathy is characterized by reversible left ventricular dysfunction following emotional or surgical stress. Unlike the well-known complications of catheter ablation (CA) of atrial fibrillation (AF), Tako-tsubo cardiomyopathy has been rarely reported so far. We report a case of acute reversible left heart failure following successful CA of paroxysmal AF ...
Kim Se-Chan SC Department of Anesthesiology and Intensive Care Medicine, University of Bonn, Sigmund-Freud-Str. 25, D-53115 Bonn, Germany. Electronic address: - - 2014
Toll-like receptor (TLR)9 ligand CpG-oligodeoxynucleotide (CpG-ODN) exerts preconditioning in myocardial ischemia/reperfusion. We hypothesized a postconditioning effect of CpG-ODN in a murine closed-chest model of myocardial infarction. C57BL/6 (12weeks, male, WT) mice were instrumented at the left anterior descending artery, then allowed 5d of recovery before 30min ischemia. Treatments comprised: 1) ...
Ullah Waqas W Cardiolovascular Biomedical Research Unit, St Bartholomew's Hospital, Barts Health NHS Trust, London, - - 2014
In preclinical studies, catheter contact force (CF) during radiofrequency ablation correlates with the subsequent lesion size. We investigated the impact of steerable-sheaths on ablation CF, its consistency, and wide area circumferential ablation (WACA) line reconnection sites. 5464 ablations were analyzed across 60 patients undergoing first-time ablation for persistent AF using ...
Webb Christopher A-J CA Stanford University School of Medicine, Stanford, CA, - - 2014
Intra-aortic balloon pumps (IABPs) continue to be the most widely used cardiac support devices with an annual estimate of 200 000 IABPs placed worldwide. IABPs enhance myocardial function by maximizing oxygen supply and minimizing oxygen demand. The use of IABPs is not without risk, with major vascular injury, ischemia, and ...
Casella Michela M Michela Casella, Corrado Carbucicchio, Eleonora Russo, Francesca Pizzamiglio, Sergio Conti, Antonio Dello Russo, Claudio Tondo, Cardiac Arrhythmia Research Centre, Centro Cardiologico Monzino IRCCS, 20138 Milan, - - 2014
We report the case of a 63-year-old woman affected by a severe form of systemic scleroderma with pulmonary involvement (interstitial fibrosis diagnosed by biopsy and moderate pulmonary hypertension) and cardiac involvement (paroxysmal atrial fibrillation, right atrial flutter treated by catheter ablation, ventricular tachyarrhythmias, previous dual chamber implantable cardioverter defibrillator implant). ...
Rogers Toby T Cardiovascular and Pulmonary Branch, Division of Intramural Research, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, MD, - - 2014
Objectives: We test the safety of trans-atrial pericardial access using small catheters, infusion of carbon dioxide (CO2 ) or iodinated contrast to facilitate sub-xiphoid access, and catheter withdrawal under full anticoagulation. Background: Sub-xiphoid pericardial access is required for electrophysiological and structural heart interventions. If present, an effusion protects the heart ...
Duffy Danielle D Thomas Jefferson University, Philadelphia, PA 19107, - - 2014
Prescribed in patients with a history of myocardial infarction, stroke, transient ischemic attack, coronary intervention or bypass surgery, aspirin is one of the medications most commonly used in the secondary prevention of cardiovascular diseases. It has become a mainstay of therapy after years of solid evidence supporting its efficacy in ...
Ziolo Mark T MT Department of Physiology and Cell Biology, Department of Internal Medicine, Dorothy M. Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, - - 2014
Atrial fibrillation (AF) is the most common form of arrhythmia, currently estimated to affect over 33 million individuals worldwide. The incidence of AF continues to grow, and unfortunately current treatment strategies (e.g., catheter ablation, ion channel blockers) may have limited efficacy and/or adverse effects. Thus, understanding the underlying source(s) of ...
Jain Rahul R Indiana University School of Medicine, 1800 N. Capitol Avenue, Indianapolis, - - 2014
Editorial Comment; Non-ischemic cardiomyopathy (NICM) is characterized by myocardial dysfunction in the absence of significant coronary artery disease. Myocardial cellular replacement by scar tissue leads to further mechanical dysfunction as well as ventricular tachycardia (VT) in some of these patients. The heterogeneous and often complex substrate distribution in such cases ...
Saggu Daljeet D CARE Hospital, The Institute of Medical Sciences, Hyderabad, - - 2014
Electrical storm (ES) due to drug refractory ventricular tachycardia (VT) occurring within first few weeks of acute myocardial infarction (MI) has poor prognosis. Catheter ablation has been proposed for treating VT occurring late after MI, but there is limited data on catheter ablation in VT within first few weeks of ...
Schlangen Jana J Department for Congenital Heart Disease and Paediatric Cardiology, University Hospital of Schleswig-Holstein, Campus Kiel, Kiel, Germany - - 2014
-Assessment of systemic right ventricular (RV) function in patients with hypoplastic left heart syndrome (HLHS) is important during long term follow up after Fontan repair. Traditional echocardiographic parameters to evaluate systolic ventricular function are affected by loading conditions. The only generally accepted load independent parameter of systolic function, end systolic ...
Ferrero de Loma-Osorio Angel A Sección de Electrofisiología y Arritmias, Sociedad Española de Cardiología, Madrid, Spain. Electronic address: - - 2014
This report presents the results of the 2013 Spanish Catheter Ablation Registry. Data were collected using 2 systems: retrospectively by completing a dedicated form and prospectively by reporting to a central database. Each participating center chose 1 of the 2 data collection methods. Eighty centers voluntarily contributed data to the ...
Ganesan Anand N AN Centre for Heart Rhythm Disorders (CHRD), South Australian Health and Medical Research Institute (SAHMRI), University of Adelaide and Royal Adelaide Hospital, Adelaide, - - 2014
Catheter ablation of atrial fibrillation (AF) is an established rhythm control strategy; however, the impact of co-existing LV systolic dysfunction (LVSD) on ablation success is less well understood. This systematic review compiles the outcomes of catheter ablation of atrial fibrillation in patients with LVSD. An electronic database (Pubmed, Scopus, Embase) ...
Soucy Kevin G KG Departments of a?>Cardiovascular and Thoracic Surgery; Bioengineering, University of Louisville, Louisville, - - 2014
Rotary blood pumps operate at a constant speed (rpm) that diminishes vascular pulsatility and variation in ventricular end-systolic and end-diastolic volumes, which may contribute to adverse events, including aortic insufficiency and gastrointestinal bleeding. In this study, pump speed modulation algorithms for generating pulsatility and variation in ventricular end-systolic and end-diastolic ...
Jesel Laurence L Department of Cardiac Electrophysiology, Hôpital Cardiologique du Haut-Lévêque & Université Victor Segalen Bordeaux II, Bordeaux, France - - 2014
-The optimal contact force (CF) for ventricular mapping and ablation remains unvalidated. We assessed CF in different endocardial and epicardial regions during ventricular tachycardia (VT) substrate mapping using a CF-sensing catheter (Smartouch, Biosense-Webster) and compared the trans-septal (TS) versus retro-aortic approach (RAo). -In total, 8979 mapping points with CF and ...
Motoki Hirohiko H Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, - - 2014
Left atrial (LA) strain is a sensitive measure of LA mechanics. However, its relationship with rhythm outcomes after catheter ablation in patients with atrial fibrillation (AF) is not well established. The aim of this study was to evaluate whether baseline LA global longitudinal strain (LAε) predicts rhythm outcomes in patients ...
Yu Pey-Jen - - 2014
IntroductionThere is substantial variability in the preoperative use of intraaortic balloon pumps (IABPs) in patients undergoing coronary artery bypass grafting post myocardial infarction. The objective of this study is to determine the effect of preoperative IABPs on postsurgical outcomes in this subset of patients.MethodsFrom 2007 to 2012, 877 patients underwent ...
Mahmoud Hani M HM Adult Cardiology Department, Prince Sultan Cardiac Center, Al-Ahsa, Hofuf, Saudi - - 2014
The coronary sinus (CS) has become a clinically important structure especially through its role in providing access for different cardiac procedures such as arrhythmia ablation, biventricular pacing and recently, percutaneous valvular interventions. Fluoroscopy with or without two-dimensional transesophageal echocardiography is the widely used method for guidance. A 78-year-old female patient ...
Imanishi Junichi J Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, - - 2014
Identification of heart failure (HF) symptoms in patients with severe aortic stenosis (AS) and preserved left ventricular (LV) ejection fraction (EF) is clinically important, but assessment of HF symptoms is challenging. It was recently reported that resting left atrium (LA) functions are related to exercise performance and are also important ...
Valgimigli Marco M Thoraxcenter, Ba 587, Erasmus MC, Rotterdam, The Netherlands. Electronic address: - - 2014
Transradial intervention (TRI) and bivalirudin infusion compared with transfemoral coronary intervention or unfractionated heparin plus glycoprotein IIb/IIIa inhibitors decrease bleeding complications in patients with acute coronary syndromes (ACS). Although bleeding is thought to be associated with worse outcomes, it remains unclear whether TRI and bivalirudin both independently lower ischemic or ...
Cubillo Efrain Israel EI 4th Division of Cardiovascular and Thoracic Anesthesiology, The Mayo Clinic, Phoenix, - - 2014
Recent clinical advances with new mechanical circulatory systems have led to additional strategies in the treatment of end-stage heart failure. The third-generation HeartWare Left Ventricular Device (LVAD) System utilizes a blood pump and a driveline (cable) that exits the patient's skin connecting the implanted pump to an externally worn controller. ...
Matía Roberto R From the Arrhythmia Unit, Cardiology Department, Hospital Ramón y Cajal, Madrid, - - 2014
A 19-year-old man diagnosed with spongiform cardiomyopathy and ventricular preexcitacion was referred to our hospital for electrophysiological (EP) testing after a syncopal episode. Baseline electrocardiogram (ECG) showed ventricular preexcitation consistent with the presence of a superior paraseptal, anteroseptal, accessory pathway (AP). After triple femoral vein puncture a decapolar catheter was ...
Ozaki Kazuyuki K Department of Cardiology, Niigata City General Hospital, Niigata, Japan. Electronic address: - - 2014
Although transient left ventricular outflow tract (LVOT) obstruction is reported as a complication with acute myocardial infarction (AMI), the mechanisms and features of LVOT obstruction in AMI are unclear. Herein, we present two cases of transient LVOT obstruction with anteroseptal AMI. The features of these two cases were one-vessel disease ...
Renaud Claude J CJ Department of Medicine, Khoo Teck Puat Hospital, Yishun Central - - - 2014
The right atrium is preferred over the superior vena cava (SVC) for tunnelled dialysis catheter (TDC) tip placement as it offers the best compromise between optimal catheter performance and complications. However, clinical practice guidelines are not all unanimous on this as a universal recommendation. Right atrial tip placement may also ...
Tanaka Yasuaki Y Department of Medicine, Section of Cardiac Electrophysiology, University of California, San Francisco; San Francisco, - - 2014
Standard electroanatomic mapping systems use a single catheter to perform left ventricular (LV) substrate mapping. A new mapping system uses a 64-electrode mini-basket catheter to perform rapid automated acquisition of chamber geometry, voltage and activation. The aim of this study was to compare the accuracy of the basket catheter to ...
Marinković Milan M MM - - 2014
Atrial fibrillation is the most common sustained arrhythmia in clinical practice, associated with increased mortality, risk of stroke and heart failure, as well as the reduction of the quality of life. Atrial fibrillation may be encountered in young otherwise healthy individuals, due to the isolated electrophysiological disorder limited mostly to ...
Sadek Mouhannad M MM Section of Cardiac Electrophysiology, Cardiovascular Division, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, - - 2014
The moderator band (MB) can be a source of premature ventricular contractions (PVCs), monomorphic ventricular tachycardia (VT), and idiopathic ventricular fibrillation (IVF). The purpose of this study was to define the electrocardiographic (ECG) characteristics and procedural techniques to successfully identify and ablate MB PVCs/VT. In 10 patients with left bundle ...
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