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    35855 results match your criteria Ventricular Tachycardia

    1 OF 718

    Takotsubo cardiomyopathy after intravenous epinephrine administration following cardiac arrest provoked by pneumoperitoneum - a case report.
    Pol Merkur Lekarski 2017 Apr;42(250):165-169
    Józef Struś Hospital, Poznań, Poland: Department of General and Colorectal Surgery.
    In stress-induced takotsubo cardiomyopathy (TC) high levels of catecholamines, including epinephrine, may be detected in blood. On the other hand, administration of exogenous epinephrine may occasionally result in TC.

    A Case Report: The authors describe a case of a 58-year-old, otherwise healthy female, with TC which occurred after intravenous injection of 1 mg of epinephrine against cardiac arrest provoked by pneumoperitoneum performed before planned laparoscopic cholecystectomy. Read More

    C-GRApH: A Validated Scoring System for Early Stratification of Neurologic Outcome After Out-of-Hospital Cardiac Arrest Treated With Targeted Temperature Management.
    J Am Heart Assoc 2017 May 20;6(5). Epub 2017 May 20.
    Department of Cardiovascular Medicine, University of Virginia, Charlottesville, VA
    Background: Out-of-hospital cardiac arrest (OHCA) results in significant morbidity and mortality, primarily from neurologic injury. Predicting neurologic outcome early post-OHCA remains difficult in patients receiving targeted temperature management.

    Methods And Results: Retrospective analysis was performed on consecutive OHCA patients receiving targeted temperature management (32-34°C) for 24 hours at a tertiary-care center from 2008 to 2012 (development cohort, n=122). Read More

    Drug-induced Fatal Arrhythmias: Acquired long QT and Brugada Syndromes.
    Pharmacol Ther 2017 May 17. Epub 2017 May 17.
    Department of Cardiovascular and Respiratory Medicine, Shiga University of Medical Science, Otsu, Shiga, Japan. Electronic address:
    Since the early 1990s, the concept of primary "inherited" arrhythmia syndromes or ion channelopathies has evolved rapidly as a result of revolutionary progresses made in molecular genetics. Alterations in genes coding for membrane proteins such as ion channels or their associated proteins responsible for the generation of cardiac action potentials (AP) have been shown to cause specific malfunctions which eventually lead to cardiac arrhythmias. These arrhythmic disorders include congenital long QT syndrome, Brugada syndrome, catecholaminergic polymorphic ventricular tachycardia, short QT syndrome, progressive cardiac conduction disease, etc. Read More

    Slow ventricular tachycardia in a 91-year-old man with implantable cardioverter-defibrillator and acute respiratory failure.
    Am J Emerg Med 2017 May 11. Epub 2017 May 11.
    Cardiology and Coronary Intensive Care Unit, "San Giuseppe Moscati" Hospital, via Contrada Amoretta, 83100 Avellino, Italy.
    Slow ventricular tachycardia (VT) in patients with devices such as an implantable cardioverter - defibrillator (ICD) is more common than in the rest of the population. The incidence in elderly patients with an ICD remains largely unknown. In younger patients, slow VT is generally asymptomatic or associated with limited clinical relevance. Read More

    Arrhythmia burden and related outcomes in Eisenmenger syndrome.
    Congenit Heart Dis 2017 May 19. Epub 2017 May 19.
    Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.
    Background: Patients with Eisenmenger syndrome have a shorter lifespan than the general population. A significant proportion develop arrhythmia and some, sudden death.

    Objective: The aims of this study were to characterize the frequency, type and effects of arrhythmias in adult patients with Eisenmenger's syndrome and to identify risk factors for arrhythmias. Read More

    Autosomal Recessive Nonsyndromic Arrhythmogenic Right Ventricular Cardiomyopathy without Cutaneous Involvements: A Novel Mutation.
    Ann Hum Genet 2017 May 19. Epub 2017 May 19.
    Cardiogenetic Research Laboratory, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran.
    The arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C) is a genetic disease frequently associated with desmosomal mutations, mainly attributed to dominant mutations in the Plakophilin-2 (PKP2) gene. Naxos and Carvajal are the syndromic forms of ARVD/C due to recessive mutations. Herein, we report an autosomal recessive form of nonsyndromic ARVD/C caused by a mutation in the PKP2 gene. Read More

    QRS/T-Wave and Calcium Alternans in a Type I Diabetic Mouse Model for Spontaneous Post Myocardial Infarction Ventricular Tachycardia: A Mechanism for the Antiarrhythmic Effect of Statins.
    Heart Rhythm 2017 May 15. Epub 2017 May 15.
    Tufts Medical Center, Tufts University School of Medicine, Boston, MA; Molecular Cardiology Research Institute, Tufts Medical Center, Boston, MA; Cardiovascular Division, Cardiovascular Center, Department of Medicine, Tufts Medical Center, Boston, MA. Electronic address:
    Background: The incidence of sudden arrhythmic death is markedly increased in diabetics.

    Objective: Develop a mouse model for Post MI VT in the diabetic heart and determine the mechanism of an antiarrhythmic effect of statins.

    Methods: EKG transmitters were implanted in wild type (WT), placebo and pravastatin treated Type I diabetic Akita mice, MIs induced by coronary ligation, Ca(2+) transients studied by optical mapping, Ca(2+) transients and sparks in left VM (VM) by the Ionoptix system and confocal microscopy. Read More

    Cryoablation for Ventricular Tachycardia Originating from Anterior Papillary Muscle of Left Ventricle Guided by Intracardiac Echocardiography.
    Case Rep Cardiol 2017 20;2017:9734795. Epub 2017 Apr 20.
    Davidai Arrhythmia Center, Heart Center, Sheba Medical Center, Tel Hashomer, Israel.
    Papillary muscles (PMs) were reported to be origin of ventricular arrhythmia (VA). Radiofrequency (RF) ablation was reported to be acutely effective in eliminating VA. However, the recurrence rate is high. Read More

    Impact of a Perioperative Prophylaxis Guideline on Post-Cardiothoracic Surgery Atrial Fibrillation.
    Ann Pharmacother 2017 May 1:1060028017709290. Epub 2017 May 1.
    5 Hartford Hospital Department of Pharmacy, Hartford, CT, USA.
    Background: National practice guidelines do not provide clear recommendations on combination pharmacological regimens to reduce cardiothoracic surgery (CTS) postoperative atrial fibrillation (POAF).

    Objective: This study examines if there is a reduction in POAF rates after implementing a perioperative prophylaxis guideline that includes amiodarone, β-blockers, and high-intensity statins.

    Methods: Data were retrospectively collected on 400 adults (200 patients pre-guideline implementation and 200 patients post-guideline implementation) with a CHA2DS2-VASc (Congestive Heart Failure, Hypertension, Age, Diabetes Mellitus, and Vascular Disease) score of at least 3 points after CTS. Read More

    Epicardial cardioverter-defibrillator implantation in a 4-month-old infant bridged to heart transplantation.
    Interact Cardiovasc Thorac Surg 2017 May 16. Epub 2017 May 16.
    Pediatric Cardiology Unit, Grande Ospedale Metropolitano Niguarda, Milan, Italy.
    Implantable cardioverter-defibrillator (ICD) is the gold standard therapy for the prevention of sudden cardiac death. Nevertheless, ICD placement in the paediatric population is still limited because of several technical difficulties. Several implantation techniques have been proposed but experience in infants with very low weight and less than 6 months is very limited. Read More

    Multiscale ordinal network analysis of human cardiac dynamics.
    Philos Trans A Math Phys Eng Sci 2017 Jun;375(2096)
    School of Mathematics and Statistics, The University of Western Australia, Crawley, Western Australia 6009, Australia.
    In this study, we propose a new information theoretic measure to quantify the complexity of biological systems based on time-series data. We demonstrate the potential of our method using two distinct applications to human cardiac dynamics. Firstly, we show that the method clearly discriminates between segments of electrocardiogram records characterized by normal sinus rhythm, ventricular tachycardia and ventricular fibrillation. Read More

    Atrial antitachycardia pacing and atrial remodeling: a substudy of the international, randomized MINERVA trial.
    Heart Rhythm 2017 May 12. Epub 2017 May 12.
    Institute of Internal Medicine and Cardiology, University of Florence, Florence, Italy; IRCCS Multimedica, Sesto San Giovanni, Italy.
    Background: Atrial tachycardia (AT) and atrial fibrillation (AF) are common in pacemaker patients and are associated with bad prognosis.

    Objective: To evaluate atrial antitachycardia pacing impact on AT/AF induced atrial remodeling, measured by early recurrence of AT/AF (ERAF) and by change in left atrium diameter (LAD). To evaluate impact of AT/AF duration on ERAF incidence. Read More

    Outcomes after repeat ablation of ventricular tachycardia in structural heart disease: An analysis from the International VT Ablation Center Collaborative Group.
    Heart Rhythm 2017 Apr 15. Epub 2017 Apr 15.
    University of Colorado Health System, Aurora, Colorado.
    Background: Data evaluating repeat radiofrequency ablation (>1RFA) of ventricular tachycardia (VT) are limited.

    Objective: The purpose of this study was to determine the safety and outcomes of VT >1RFA in patients with structural heart disease.

    Methods: Patients with structural heart disease undergoing VT RFA at 12 centers with data on prior RFA history were included. Read More

    Ventricular tachycardia score - A novel method for wide QRS complex tachycardia differentiation - Explained.
    J Electrocardiol 2017 Apr 25. Epub 2017 Apr 25.
    First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, College of Medicine, Kraków, Poland.
    Philosophy, merits and limitations of a novel method for wide QRS complex tachycardia differentiation, based on a scoring system and called the ventricular tachycardia (VT) score, were explained. The following criteria were assigned one point: initial dominant R wave in V1; initial r>40 ms in V1 or V2; notched S in V1; initial R wave in aVR; lead II RWPT≥50 ms; and absence of an RS in leads V1-V6. Atrioventricular dissociation (including fusion/capture beats and partial dissociation) was assigned two points. Read More

    [Clinical characteristics and follow-up of patients with magnetic resonance imaging confirmed myopericarditis: A retrospective study].
    Ann Cardiol Angeiol (Paris) 2017 May 12. Epub 2017 May 12.
    Service de cardiologie, hôpital Erasme, université Libre de Bruxelles, 808, route de Lennik, 1070 Bruxelles, Belgique.
    Introduction: Pericarditis are frequently associated with some degree of concomitant myocardial involvement. Predominant pericarditis with limited myocardial involvement are named myopericarditis. Data regarding myopericarditis are scarce. Read More

    Origins location of the outflow tract ventricular arrhythmias exhibiting qrS pattern or QS pattern with a notch on the descending limb in lead V1.
    BMC Cardiovasc Disord 2017 May 15;17(1):124. Epub 2017 May 15.
    Department of Cardiology, Second Affiliated Hospital of Wenzhou Medical university, 109 Xueyuan Road, Wenzhou, Zhejiang, 325000, China.
    Background: Ventricular outflow tract(VOT) ventricular arrhythmias(VAs) presenting qrS pattern or QS pattern with a notch on the descending limb in lead V1 were consistently thought of arising from the commissure between left and right coronary cusp (L-RCC) by previous studies. However, we found they could originate from other anatomic structures in VOT. This study aimed to investigate the exact origin of this kind VAs. Read More

    Maternal bradycardia occurring prior to onset of HELLP syndrome in a woman with pre-eclampsia.
    BMJ Case Rep 2017 May 13;2017. Epub 2017 May 13.
    Graduate School of Medicine, Hokkaido University, Sapporo, Japan.
    A 36-year-old nulliparous woman developed pre-eclampsia at gestational week (GW) 28(-6/7) Cardiac status was checked regularly. Heart rate of 93 beats per minute (bpm) with left atrial diameter (LAD) of 35 mm, left ventricular hypertrophy and inferior vena cava diameter (IVCD) of 8 mm at GW 32(-0/7) decreased to 48 bpm with an expanded IVCD to 25 mm, dilated left atrium (LAD to 39 mm), increased pulmonary arterial pressure, increased systemic vascular resistance (approximate 3000  dyn s/cm(5)) and biphasic intrarenal venous flow pattern 3.5 hours prior to childbirth at GW 32(-3/7) Epigastralgia, tachycardia (160 bpm) and marked hypertension (201/111 mm Hg) occurring 2 hours after echocardiography necessitated caesarean section, with subsequent development of HELLP syndrome. Read More

    Electrical Substrate Elimination in 135 Consecutive Patients With Brugada Syndrome.
    Circ Arrhythm Electrophysiol 2017 May;10(5):e005053
    From the Arrhythmology Department (C.P., G.V., G.C., F.M., M.S., R.V., A.C., L.G., Z.C., M.C., A.N., S.C., V.B., V.S.) and Cardiac Surgery Department (A.F., L.M.), IRCCS Policlinico San Donato, San Donato Milanese, Italy; Cardiology Department, Cardiovascular Institute, Hospital Clinic and IDIBAPS, Barcelona, Catalonia (J.B.); Cardiology Department, Hospital Trueta, Girona, Spain (R.B.); Department of Medical Sciences, University of Girona & IDIBGI, Spain (); Pediatric Arrhythmias, Electrophysiology and Sudden Death Unit, Cardiology Department, Hospital Sant Joan de Deu, Barcelona, Spain (G.S.-B.); and Cardiology Department, IRCCS Policlinico San Donato, University of Milan, Italy (M.G.).
    Background: There is emerging evidence that localization and elimination of abnormal electric activity in the epicardial right ventricular outflow tract may be beneficial in patients with Brugada syndrome.

    Methods And Results: A total of 135 symptomatic Brugada syndrome patients having implantable cardiac defibrillator were enrolled: 63 (group 1) having documented ventricular tachycardia (VT)/ventricular fibrillation (VF) and Brugada syndrome-related symptoms, and 72 (group 2) having inducible VT/VF without ECG documentation at the time of symptoms. About 27 patients of group 1 experienced multiple implantable cardiac defibrillator shocks for recurrent VT/VF episodes. Read More

    Efficacy of Flecainide in the Treatment of Catecholaminergic Polymorphic Ventricular Tachycardia: A Randomized Clinical Trial.
    JAMA Cardiol 2017 May 10. Epub 2017 May 10.
    Thomas P. Graham Jr Division of Pediatric Cardiology, Department of Pediatrics, Monroe Carell Jr Children's Hospital at Vanderbilt, Vanderbilt Center for Arrhythmia Research and Therapeutics, Vanderbilt University Medical Center, Nashville, Tennessee14Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee17Department of Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee.
    Importance: Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a potentially lethal genetic arrhythmia syndrome characterized by polymorphic ventricular tachycardia with physical or emotional stress, for which current therapy with β-blockers is incompletely effective. Flecainide acetate directly suppresses sarcoplasmic reticulum calcium release-the cellular mechanism responsible for triggering ventricular arrhythmias in CPVT-but has never been assessed prospectively.

    Objective: To determine whether flecainide dosed to therapeutic levels and added to β-blocker therapy is superior to β-blocker therapy alone for the prevention of exercise-induced arrhythmias in CPVT. Read More

    Electrical Storm or Naxos Syndrome in an Adult Causing Recurrent Syncope.
    J Coll Physicians Surg Pak 2017 Apr;27(4):250-251
    Department of Cardiology, Punjab Institute of Cardiology, Lahore.
    Among the rare and well-known causes of sudden cardiac death by malignant arrthymias is a condition called arrhythmogenic right ventricular cardiomyopathy. It commonly presents with right ventricular dilatation, dysfunction and ventricular tachycardia of left bundle branch morphology due to fibro-fatty infiltration of right ventricle in second to fifth decade of life, making it an unrecognized and important cause of sudden cardiac death. Two rare variants of arrhythmogenic right ventricular cardiomyopathy are Carvajal syndrome and Naxos syndrome. Read More

    Surgical and electrophysiological considerations in the management of a patient with a subcutaneous implantable cardioverter-defibrillator undergoing coronary artery bypass surgery.
    HeartRhythm Case Rep 2017 Jan 24;3(1):58-62. Epub 2016 Oct 24.
    Division of Cardiology and Cardiothoracic Surgery, Drexel University College of Medicine and Hahnemann University Hospital, Philadelphia, Pennsylvania.

    Coronary artery vasospasm during catheter cryoablation of left ventricular summit nonsustained ventricular tachycardia.
    HeartRhythm Case Rep 2016 Nov 18;2(6):491-494. Epub 2016 Aug 18.
    Division of Cardiac Electrophysiology, Department of Cardiology, Cardiovascular Institute of Buenos Aires (ICBA), Buenos Aires, Argentina.

    Incremental value of electroanatomical mapping for the diagnosis of arrhythmogenic right ventricular cardiomyopathy in a patient with sustained ventricular tachycardia.
    HeartRhythm Case Rep 2016 Nov 9;2(6):469-472. Epub 2016 Sep 9.
    Clinical Cardiac Electrophysiology, Cardiovascular Medicine Division, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania.

    Practice guideline summary: Reducing brain injury following cardiopulmonary resuscitation: Report of the Guideline Development, Dissemination, and Implementation Subcommittee of the American Academy of Neurology.
    Neurology 2017 May 10. Epub 2017 May 10.
    From the Departments of Neurology, Anesthesiology-Critical Care Medicine, and Neurosurgery (R.G.G.), Johns Hopkins University School of Medicine, Baltimore, MD; Department of Neurology (E.W., A.R.), Mayo Clinic, Rochester, MN; Department of Neurology (M.J.A.), University of Florida-McKnight Brain Institute, Gainesville; Department of Neurology and Neurocritical Care Unit (M.D.), Cambridge University Hospitals; The Ipswich Hospital (M.D.), Cambridge, UK; Departments of Neurology and Neurosurgery (S.A.M.), Mount Sinai-Icahn School of Medicine, New York, NY; Departments of Emergency Medicine and Internal Medicine (Cardiology) (J.P.O.), Virginia Commonwealth University College of Medicine, Richmond; Department of Neurology (J.I.S.), Baylor College of Medicine, Houston, TX; Department of Neurology and Neurosurgery (M.T.T.), Ohio State University, Columbus; Department of Neurology (R.M.D.), Kansas University Medical Center, Kansas City; and Department of Neurology (J.L.), University of Toronto, Canada.
    Objective: To assess the evidence and make evidence-based recommendations for acute interventions to reduce brain injury in adult patients who are comatose after successful cardiopulmonary resuscitation.

    Methods: Published literature from 1966 to August 29, 2016, was reviewed with evidence-based classification of relevant articles.

    Results And Recommendations: For patients who are comatose in whom the initial cardiac rhythm is either pulseless ventricular tachycardia (VT) or ventricular fibrillation (VF) after out-of-hospital cardiac arrest (OHCA), therapeutic hypothermia (TH; 32-34°C for 24 hours) is highly likely to be effective in improving functional neurologic outcome and survival compared with non-TH and should be offered (Level A). Read More

    Systemic inflammation as a novel QT-prolonging risk factor in patients with torsades de pointes.
    Heart 2017 May 10. Epub 2017 May 10.
    Department of Medical Sciences, Surgery and Neurosciences, University of Siena, Siena, Italy.
    Objective: Increasing evidence indicates systemic inflammation as a new potential cause of acquired long QT syndrome (LQTS), via cytokine-mediated changes in cardiomyocyte ion channels. Torsade de pointes (TdP) is a life-threatening polymorphic ventricular tachycardia occurring in patients with LQTS, usually when multiple QT-prolonging factors are simultaneously present. Since classical risk factors cannot fully explain TdP events in a number of patients, we hypothesised that systemic inflammation may represent a currently overlooked risk factor contributing to TdP development in the general population. Read More

    Exclusion of alternative exon 33 of CaV1.2 calcium channels in heart is proarrhythmogenic.
    Proc Natl Acad Sci U S A 2017 May 10. Epub 2017 May 10.
    Department of Physiology, National University of Singapore, 117597 Singapore;
    Alternative splicing changes the CaV1.2 calcium channel electrophysiological property, but the in vivo significance of such altered channel function is lacking. Structure-function studies of heterologously expressed CaV1. Read More

    Toxicokinetics of ibogaine and noribogaine in a patient with prolonged multiple cardiac arrhythmias after ingestion of internet purchased ibogaine.
    Clin Toxicol (Phila) 2017 Jul 9;55(6):600-602. Epub 2017 Feb 9.
    d Department of Clinical Pharmacology and Pharmacy , VU University Medical Center , Amsterdam , Netherlands.
    Background: Ibogaine is an agent that has been evaluated as an unapproved anti-addictive agent for the management of drug dependence. Sudden cardiac death has been described to occur secondary to its use. We describe the clinical effects and toxicokinetics of ibogaine and noribogaine in a single patient. Read More

    Conquest of Ventricular Tachycardia: Insights Into Mechanisms, Innovations in Management: Contribution of Mark E. Josephson, MD, to Clinical Electrophysiology.
    Circ Arrhythm Electrophysiol 2017 May;10(5)
    From the Department of Cardiovascular Services, O'Connor Hospital and Heart & Rhythm Medical Group, San Jose, CA (M.S.); Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis (J.M.M.); Division of Cardiovascular Medicine, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia (D.J.C., F.E.M.); Unidad de Electrofisiología Cardiaca (Sala de Electrofisiología), Hospital Madrid Monteprincipe, Spain (J.M.A.); and Department of Cardiology, Beth Israel Deaconess Medical Center, Boston, MA (A.E.B.).

    Longstanding persistent accelerated idioatrial rhythm: Benign sinus node-like rhythm or insidious rhythm?
    J Cardiovasc Electrophysiol 2017 May 9. Epub 2017 May 9.
    Division of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
    Introduction: Detailed description of longstanding persistent accelerated idioatrial rhythm (AIAR) is lacking. This observational study investigated the clinical manifestations, electrophysiological characteristics, diagnosis, treatment and prognosis of this unusual arrhythmia.

    Methods And Results: Fifteen patients (11 males; average age 25. Read More

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