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Pezawas Thomas T Department of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria - - 2014
-Prophylactic defibrillator implantation is recommended in dilated, non-ischemic heart disease and left ventricular ejection fraction (LVEF) of 0·30-0·35 or less. Non-invasive testing should improve accuracy in decision-making of prophylactic defibrillator implantation. -We enrolled 60 patients (median age 57 years) with dilated cardiomyopathy and LVEF ≤0·50, and 30 control subjects (median ...
Chen Lin Y LY Cardiovascular Division, Department of Medicine, University of Minnesota Medical - - 2014
Evidence is emerging to indicate that atrial fibrillation (AF) is independently associated with an increased risk of sudden cardiac death (SCD). This association has been consistently observed in specific patient subgroups such as patients with myocardial infarction (MI), heart failure, and hypertension, and importantly, in the general population. Data from ...
Tschabrunn Cory M CM Cory M Tschabrunn, Harvard-Thorndike Electrophysiology Institute, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, United - - 2014
Arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D) is primarily believed to be an inherited cardiomyopathy that subsequently results in significant myocardial fibrosis. The arrhythmogenic consequences that result from the development of fibrosis are similar to other nonischemic cardiomyopathies, but the unique endocardial-epicardial disease process of ARVC/D requires a specialized approach for arrhythmia ...
Kolb Christof C Deutsches Herzzentrum München, Klinik für Herz- und Kreislauferkrankungen, Faculty of Medicine, Technische Universität München, Munich, Germany. Electronic address: - - 2014
The OPTION (Optimal Anti-Tachycardia Therapy in Implantable Cardioverter-Defibrillator Patients Without Pacing Indications) trial sought to compare long-term rates of inappropriate shocks, mortality, and morbidity between dual-chamber and single-chamber settings in implantable cardioverter-defibrillators (ICDs) patients. The use of dual-chamber ICDs potentially allows better discrimination of supraventricular arrhythmias and thereby reduces inappropriate ...
Raghuram Akhil A Oregon Health & Science University, Portland - - 2014
Obstructive sleep apnea (OSA) is an independent risk factor for sudden cardiac death. The aim of this review was to study the relationship between OSA and ventricular arrhythmias. PubMed, Medline, and Cochrane databases were searched with MESH headings to find studies linking OSA and ventricular arrhythmias including ventricular ectopy, ventricular ...
An Zhe Z Department of Cardiology, China-Japan United Hospital of Jilin University, Changchun, - - 2014
In patients with acromegaly, cardiovascular complications are the main cause of death; sudden death has been associated with ventricular tachyarrhythmias. In other patients with life-threatening malignant ventricular tachyarrhythmias, surgical placement of an implantable cardioverter-defibrillator (ICD) has proved highly effective in reducing sudden death rates. The present article reports the case ...
Bardai Abdennasser A Heart Center, Departments of Cardiology and General Practice, Academic Medical Center & University of Amsterdam, Amsterdam, The Netherlands - - 2014
-Atrial Fibrillation (AF) is associated with sudden cardiac death (SCD). We aimed to study whether AF is associated with ventricular fibrillation (VF), the most common cause of SCD, and whether this association is independent of confounders, i.e., concomitant disease, use of antiarrhythmic or QT-prolonging drugs, and acute myocardial infarction (AMI). ...
Mgbako Ofole U OU Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Social Media and Health Innovation Lab, Penn Medicine Center for Health Care Innovation, Philadelphia, PA, - - 2014
To characterize defibrillation and cardiac arrest survival outcomes in movies. Movies from 2003 to 2012 with defibrillation scenes were reviewed for patient and rescuer characteristics, scene characteristics, defibrillation characteristics, additional interventions, and cardiac arrest survival outcomes. Resuscitation actions were compared with chain of survival actions and the American Heart Association ...
Khazanie Prateeti P Duke Clinical Research Institute, Durham, NC; Duke University School of Medicine, Department of Medicine, Durham, - - 2014
-Cardiac resynchronization therapy with defibrillator (CRT-D) reduces morbidity and mortality among selected patients with heart failure in clinical trials. The effectiveness of this therapy in clinical practice has not been well studied. -We compared a cohort of 4471 patients from the National Cardiovascular Data Registry's ICD Registry™ hospitalized primarily for ...
Nogami Akihiko A From the Cardiovascular Division, University of Tsukuba, Tsukuba, Ibaraki, - - 2014
Mapping and Ablating the Trigger of Ventricular Fibrillation. Ventricular fibrillation (VF) is a malignant arrhythmia, usually initiated by a ventricular premature contraction (VPC) during the vulnerable period of cardiac repolarization. Ablation therapy for VF has been described and increasingly reported. Targets for VF triggers are VPC preceded Purkinje potentials or ...
Iizuka Takashi T From the Department of Medicine and Biological Science, Gunma University Graduate School of Medicine, Maebashi, Gunma, - - 2014
A 17-year-old man was urgently admitted to our hospital after successful external defibrillation of a first episode of ventricular fibrillation (VF), which developed during light exercise. He had no personal medical history, and no history of sudden death or syncope among close relatives. A 12-lead electrocardiogram recorded during sinus rhythm ...
Ruwald Martin H MH Heart Research Follow-up Program, University of Rochester Medical Center, Rochester, New York; Department of Cardiology, Gentofte Hospital, Hellerup, Denmark. Electronic address: - - 2014
A high percentage of biventricular pacing is required for optimal outcome in patients treated with cardiac resynchronization therapy (CRT), but the influence of ectopic beats on the success of biventricular pacing has not been well established. This study sought to determine if increased ectopic beats reduce the chance of high ...
Bogossian Harilaos H Märkische Kliniken GmbH, Department of Cardiology and Angiology, Klinikum Lüdenscheid, Germany; Department of Cardiology, University Witten/ Herdecke, Witten, - - 2014
The main tool for the differentiation of supraventricular tachycardia is the 12-lead electrocardiogram (ECG). Especially differentiating the atrioventricular nodal reentrant tachycardia (AVNRT) from the atrioventricular reentrant tachycardia (AVRT) due to concealed accessory pathway or from an atrial tachycardia (AT) is very important for catheter setting and ablation approach in an ...
Barbosa Marcia M MM Universidade Federal de Minas Gerais, Belo Horizonte, Brazil; Ecocenter, Socor Hospital, Belo Horizonte, Brazil. Electronic address: - - 2014
Sickle cell disease (SCD) is a hemoglobinopathy that is common worldwide. It usually presents with cardiac involvement, although data on systolic function are somewhat controversial. The aim of this study was to investigate the value of speckle-tracking strain, a deformation index, in detecting ventricular dysfunction in SCD. Ninety adult patients ...
Liu Enzhao E Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin 300211, People's Republic of - - 2014
Discrete potentials (DPs) have been recorded and targeted as the site of ablation of the outflow tract arrhythmias. The aim of the present study was to investigate the significance of DPs with respect to mapping and ablation for idiopathic outflow tract premature ventricular contractions (PVCs) or ventricular tachycardias (VTs). Seventeen ...
Kaye Gerald C GC University of Queensland, Brisbane, Queensland, Australia 4102. Electronic address: - - 2014
Implantable cardioverter defibrillator (ICD) leads have traditionally been placed at the right ventricular apex (RVA). An important minority of patients with an ICD may develop a future requirement for bradycardia support. Pacing from the RVA may be detrimental, promoting heart failure and mortality. Increasingly non-apical right ventricular (RVNA) lead positions ...
Szymanski Filip M FM - - 2014
Shock is a manifestation of circulatory failure related to an inadequate supply of oxygenated blood to the tissues. One type of shock is cardiogenic shock resulting from abnormalities of myocardial structure and function, impairment of mechanical function of the heart, or arrhythmia. Most commonly, cardiogenic shock is due to an ...
Van Treeck Benjamin J - - 2014
Clinical hypothyroidism is the most common hormone deficiency in the United States and is found in 0.3% of the U.S. population. It is associated with characteristic symptoms that can be readily identified by a careful history and physical examination. Hypothyroidism affects many bodily systems; in particular the cardiovascular system is ...
Pimentel Maurício M Curso de Pós-graduação em Ciências Cardiovasculares, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, - - 2014
Despite significant therapeutic advancements, heart failure remains a highly prevalent clinical condition associated with significant morbidity and mortality. In 30%-40% patients, the etiology of heart failure is nonischemic. The implantable cardioverter-defibrillator (ICD) is capable of preventing sudden death and decreasing total mortality in patients with nonischemic heart failure. However, a ...
Pimentel Maurício M Curso de Pós-graduação em Ciências Cardiovasculares, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, - - 2014
Despite significant therapeutic advancements, heart failure remains a highly prevalent clinical condition associated with significant morbidity and mortality. In 30%-40% patients, the etiology of heart failure is nonischemic. The implantable cardioverter-defibrillator (ICD) is capable of preventing sudden death and decreasing total mortality in patients with nonischemic heart failure. However, a ...
Demirel Fatma F Department of Cardiology, Isala Klinieken, Zwolle, the - - 2014
We hypothesized that myocardial scar characterization using cardiac magnetic resonance imaging (CMR) may be associated with the occurrence of ventricular tachyarrhythmia (VT), appropriate implantable cardioverter-defibrillator (ICD) therapy and mortality. Since a minority of patients with prophylactic ICD implantation receive appropriate ICD therapy, there is a need for more effective risk ...
Bilchick Kenneth C KC Department of Cardiovascular Medicine, University of Virginia Health System, Charlottesville, - - 2014
Several clinical trials have established that cardiac resynchronization therapy in combination with an implantable cardioverter-defibrillator improves survival and alleviates heart failure symptoms in appropriately selected patients. Recent guidelines have expanded the indications to include patients with less severe heart failure. The aim of this study was to examine the extent ...
Kapel Gijsbert F L GF Department of Cardiology & Cardiac Surgery, Leiden University Medical Centre, Leiden, the - - 2014
-Radiofrequency catheter ablation (RFCA) of ventricular tachycardia (VT) in repaired Tetralogy of Fallot (rTOF) focuses on isthmuses in the right ventricle but may be hampered by hypertrophied myocardium or prosthetic material. These patients may benefit from ablation at the left side of the ventricular septum. -Records from 28 consecutive rTOF ...
Kuga Keisuke K Department of Cardiology, Faculty of Medicine, University of - - 2014
Background:Indications of implantable cardioverter-defibrillator (ICD) for patients with an old myocardial infarction (OMI) and left ventricular dysfunction (LVD) were expanded in Western countries after the results of MADIT II. However, the prognosis of OMI patients with LVD and the merits of prophylactic implantation of ICD, based on evidence in Japan, ...
Babaeizadeh Saeed S Advanced Algorithm Research Center, Philips Healthcare, Andover, MA. Electronic address: - - 2014
Defibrillation is often required to terminate a ventricular fibrillation or fast ventricular tachycardia rhythm and resume a perfusing rhythm in sudden cardiac arrest patients. Automated external defibrillators rely on automatic ECG analysis algorithms to detect the presence of shockable rhythms before advising the rescuer to deliver a shock. For a ...
Colquitt Jill L JL , - - 2014
This assessment updates and expands on two previous technology assessments that evaluated implantable cardioverter defibrillators (ICDs) for arrhythmias and cardiac resynchronisation therapy (CRT) for heart failure (HF). To assess the clinical effectiveness and cost-effectiveness of ICDs in addition to optimal pharmacological therapy (OPT) for people at increased risk of sudden ...
Viana Marcelo A MA Department of Biomedical Engineering, School of Electrical and Computer Engineering, University of Campinas (UNICAMP), Campinas, São Paulo, - - 2014
Cardiac arrest after open surgery has an incidence of approximately 3%, of which more than 50% of the cases are due to ventricular fibrillation. Electrical defibrillation is the most effective therapy for terminating cardiac arrhythmias associated with unstable hemodynamics. The excitation threshold of myocardial microstructures is lower when external electrical ...
Te Riele Anneline - - 2014
Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC) is one of the most arrhythmogenic forms of inherited cardiomyopathy and a frequent cause of sudden death in the young. Affected individuals typically present between the second and fourth decade of life with arrhythmias coming from the right ventricle. Pathogenic mutations in genes encoding the ...
Ward Alexandra E AE Department of Medicine, University of Maryland School of Medicine, Baltimore, - - 2014
We describe a 45-year old man who experienced a potentially fatal arrhythmia after consumption of multiple energy drinks. At 5 years old, he underwent "repair" of tetralogy of Fallot using a patch in the right ventricular outflow tract, and at age 40 had an automatic implantable cardiac defibrillator (AICD) placed. ...
Wase Abdul A Clinical Professor of Medicine, Wright State University Boonshoft School of Medicine, Dayton, OH, USA; Director, Electrophysiology Laboratories, Dayton Heart and Vascular Hospital at Good Samaritan Hospital, Dayton, OH, - - 2014
Bidirectional ventricular tachycardia (BVT) is a rare variety of tachycardia with morphologically distinct presentation: The QRS axis and/or morphology is alternating in the frontal plane leads. Since its original description in association with digitalis,(1) numerous cases of this fascinating tachycardia with disparate etiologies and mechanisms have been postulated. We report ...
Maeda Shingo S Electrophysiology Section, Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA; Heart Rhythm Center, Tokyo Medical and Dental University, Tokyo, Japan. Electronic address: - - 2014
We describe a case of idiopathic left ventricular tachycardia in which the left posterior fascicle was clearly delineated to be a bystander in a re-entry circuit, with participation of the left interventricular myocardium as the retrograde limb instead. To the best of our knowledge, this is the first case report ...
García-Lunar Inés I Unidad de Arritmias, Servicio de Cardiología, Hospital Universitario Puerta de Hierro Majadahonda, Majadahonda, Madrid, Spain; Servicio de Cardiología, Hospital Universitario Quirón, Universidad Europea de Madrid, Madrid, Spain; Fundación Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), Madrid, - - 2014
Cardiac resynchronization therapy is associated with improved quality of life and reduced morbidity and mortality in patients with severe ventricular dysfunction and wide QRS. However, its role in the reduction of ventricular arrhythmias is more controversial. We compared the incidence of ventricular arrhythmias in patients who were undergoing cardiac resynchronization ...
Gibson C Michael CM Cardiovascular Division, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA. Electronic address: - - 2014
In the setting of ST-segment elevation myocardial infarction, timely restoration of normal blood flow is associated with improved myocardial salvage and survival. Despite improvements in door-to-needle and door-to-balloon times, there remains an unmet need with respect to improved symptom-to-door times. A prior report of an implanted device to monitor ST-segment ...
Fontenla Adolfo A Unidad de Arritmias, Servicio de Cardiología, Hospital Universitario 12 de Octubre, Madrid, Spain. Electronic address: - - 2014
Implantable cardioverter-defibrillators reduce mortality in some patients with heart disease. Battery replacement is a frequent occurrence in clinical practice and is required in up to 30% of implants. The benefit/risk ratio of defibrillators varies over time and should be reevaluated at the time of replacement. The aim of this study ...
Ahmadi Alireza A Assistant Professor, Department of Pediatrics AND Isfahan Cardiovascular Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, - - 2014
Tachycardia-induced cardiomyopathy (TIC) is a rare cause of dilated cardiomyopathy (DCMP). The diagnosis can be missed because tachycardia is a common symptom in DCMP. We reviewed a case 5-year-old with palpitation and dyspnea with symptoms and signs of heart failure that diagnosed as DCMP initially. Then, in the evaluation for ...
Akbarzadeh Mohammadali M Cardiac Electrophysiology Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, IR - - 2014
Brugada Syndrome is a cardiac ion channel disorder that affects the sodium current. This syndrome is characterized by cove-shaped ST elevation in ECG leads V1 to V3 in the absence of structural heart disease. A 36-year-old man diagnosed with Brugada Syndrome was reffered to our center with frequent implantable cardioverter-defibrillator ...
Baykan Ali A Department of Pediatric Cardiology, Faculty of Medicine, Erciyes University; Kayseri-Turkey. - - 2014
Naxos disease is an autosomal recessive, inherited, cardiocutaneous disorder, characterized by arrhythmogenic right ventricular cardiomyopathy, woolly hair, and palmoplantar keratoderma. Carvajal syndrome is characterized by palmoplantar keratoderma, curly hair, dilated cardiomyopathy, especially on the left ventricle side, and early morbidity. The aim of this study was to evaluate the cutaneous ...
Kunisek Juraj J Thalassotherapia Crikvenica, Special Hospital for Medical Rehabilitation; Crikvenica-Croatia. - - 2014
To investigate the possible electrophysiological background of the greater excitability of concentric and eccentric left ventricular hypertrophy types in relation to the asymmetric type. 187 patients with essential hypertension, without ishaemic heart disease were divided into three groups with regard to left ventricule type: concentric (relative wall thickness >0.42, interventricular ...
Patil Kiran G - - 2014
We report an unusual case of a 22-year-old male who was incidentally diagnosed with isolated noncompaction of the left ventricle (LV) when he was admitted with viral myocarditis. Left ventricular noncompaction (LVNC) is a congenital cardiomyopathy which presents with ventricular dysfunction, cardioembolic manifestations or with arrhythmias. A diagnosis can be ...
Nageh Maged F MF Department of Electrophysiology, Kaiser Permanente Southern California, Los Angeles, CA - - 2014
Randomized studies of implantable cardioverter defibrillators (ICD) have excluded sudden cardiac death survivors who had revascularization before or after an arrhythmic event. To evaluate the role of ICD and the effects of clinical variables including degree of revascularization, we studied cardiac surgery patients who had an ICD implanted for sustained ...
Kondo Takeshi - - 2014
Arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D) is characterized by progressive fatty and fibrous replacement. A female in her 70s, suddenly found in cardiopulmonary arrest. The heart weighed 452 g and yellow discoloration was observed. Histological examination revealed the replacement of the right ventricular myocardium by adipose tissue and fibrosis. The cause ...
Finsterer Josef J Krankenanstalt Rudolfstiftung, Vienna, - - 2014
Aborted sudden cardiac death (SCD) has not been reported as initial manifestation of cardiac involvement in metabolic myopathy (MM). A 20-year-old female with a previous history of three syncopes, hyperhidrosis, and recurrent tick bites experienced aborted SCD. Her mother presented with MM, and a history of pituitary adenoma, nephroptosis, arterial ...
Paterick Timothy E - - 2014
Left ventricular noncompaction (LVNC) is a cardiomyopathy that occurs due to an arrest of myocardial maturation during embryogenesis. The diagnostic echocardiographic features in individuals with LVNC include a thick, bilayered myocardium, prominent ventricular trabeculations, and deep intertrabecular recesses. Clinical features associated with LVNC vary in asymptomatic and symptomatic patients, and ...
Altun Ibrahim I Department of Cardiology, Mugla Sitki Kocman University Medical Faculty, Mugla, - - 2014
Arrhythmogenic right ventricular dysplasia (ARVD) is a progressive condition with the right ventricular myocardium being replaced by fibrofatty tissue. It is a hereditary disorder mostly caused by desmosome gene mutations. The prevalence of arrhythmogenic right ventricular cardiomyopathy is about 1/1000-5000. Clinical presentation is usually related to ventricular tachycardias, syncope, presyncope ...
Ul Haq Ehtesham E 0000-0002-1088-7974 University of South Alabama, Mobile, AL 36617, - - 2014
Background. Tension pneumothorax can infrequently cause ventricular arrhythmias and increase the threshold of defibrillation. It should be suspected whenever there is difficulty in defibrillation for a ventricular arrhythmia. Purpose. To report a case of traumatic tension pneumothorax leading to ventricular tachycardia and causing defibrillator failure. Case. A 65-year-old African-American female ...
Karcioglu Murat M Department of Anesthesiology and Reanimation, Faculty of Medicine, Mustafa Kemal University, Hatay, Turkey. Electronic address: - - 2014
Ventricular fibrillation occurring in a patient can result in unexpected complications. Here, our aim is to present a case of ventricular fibrillation occurring immediately after anesthesia induction with etomidate administration. A fifty-six-year-old female patient with a pre-diagnosis of gallstones was admitted to the operating room for laparoscopic cholecystectomy. The induction ...
Ugurlucan Murat M Anadolu Medical Center Hospital, Cardiovascular Surgery Clinic, Istanbul, - - 2013
Takotsubo cardiomypathy is a very rare cardiovascular syndrome leading to myocardial infarction and left ventricular dysfunction in the absence of a detectable coronary artery lesion. It is accepted as reversible left ventricular asynergy occuring typically after an intrinsic adrenergic hyperstimulation. In this report we present Takotsubo cardiomyopathy in a 75-year-old ...
Spechbach Hervé H Department of Internal Medicine, University of Geneva Hospitals Geneva, - - 2013
Ventricular arrhythmias induced by dasatinib are rare events, but physicians in charge of chronic myeloid leukemia patients should be aware of such potential complications and the need for regular ECG controls during treatment with tyrosine kinase inhibitors.
Ilhan Erkan - - 2013
To analyze electrocardiographic features of patients diagnosed with posttraumatic stress disorder (PTSD) after the Van-Erciş earthquake, with a shock measuring 7.2 on the Richter scale that took place in Turkey in October 2011. Surface electrocardiograms of 12 patients with PTSD admitted to Van Erciş State Hospital (Van, Turkey) from February ...
Guerra Miguel - - 2013
The aim of the present study was to characterize the intraventricular pressure gradients (IVPGs) througout the cardiac cycle, to correlate them with myocardial segmental asynchrony and to evaluate the effects of ischaemia and modulation by afterload. Open-chest anaesthetized rabbits (n = 6) were instrumented with pressure-tip micromanometers placed in the ...
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