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    36728 results match your criteria Ventricular Tachycardia

    1 OF 735

    Experimentally-induced ventricular arrhythmias.
    Int J Physiol Pathophysiol Pharmacol 2017 25;9(6):202-210. Epub 2017 Dec 25.
    Department of Cell Biology and Neuroscience, Division of Life Sciences, School of Arts and Sciences, Rutgers UniversityNew Brunswick, USA.
    Hypoxia and reoxygenation, ischemia and reperfusion, catecholamine infusion, ouabain, sodium pentobarbital and caffeine, can all be used experimentally to induce ventricular arrhythmias. According to the Lambeth Convention guidelines our experimentally-induced ventricular arrhythmias include but are not limited to: ventricular premature beats (VPB), ventricular salvos (VS), ventricular bigeminy (VB), nonsustained ventricular tachycardia (VTn), sustained ventricular tachycardia (VTs) and ventricular fibrillation (VF, or if the heart is not defibrillated, sudden cardiac death). We have studied these arrhythmias in the absence and presence of adenosine deaminase, methyl xanthines, and more recently, acetaminophen. Read More

    Rates and risk of arrhythmias in cancer survivors with chemotherapy-induced cardiomyopathy compared with patients with other cardiomyopathies.
    Open Heart 2017 17;4(2):e000701. Epub 2017 Dec 17.
    Division of Cardiovascular Medicine, University of South Florida, Tampa, Florida, USA.
    Objectives: There is little information about arrhythmia burden in cancer survivors with chemotherapy-induced cardiomyopathy (CIC). We hypothesise that the rates and risk of arrhythmias will be similar in CIC when compared with other non-ischaemic cardiomyopathy (NICMO) aetiologies.

    Methods: We retrospectively identified nine patients with CIC and an implantable defibrillator and 18 age and sex-matched control patients (nine patients with NICMO and nine patients with ischaemic cardiomyopathy (ICMO)). Read More

    [An analysis of clinical characteristics and acute treatment of supraventricular tachycardia in children from a multicenter study].
    Zhonghua Er Ke Za Zhi 2018 Jan;56(1):13-18
    Heart Center, Division of Pediatric Cardiology, First Hospital of Tsinghua University, Beijing 100016, China.
    Objective: The study assessed the clinical characteristics and response to acute intravenous antiarrhythmic drug therapy of supraventricular tachycardia (SVT) in children. Methods: This was a multicenter prospective descriptive study including 257 children from First Hospital of Tsinghua University, Peking University First Hospital, Children's Hospital Affiliated to Capital Institute of Pediatrics and Beijing Anzhen Hospital who received intravenous antiarrhythmic drug therapy for SVT from July 2014 to February 2017. The clinical and tachycardia features, response to intravenous antiarrhythmic drug therapy of these children were characterized. Read More

    Different responses of supraventricular tachycardia with 2:1 AV block to consecutive premature ventricular contractions.
    Pacing Clin Electrophysiol 2018 Jan 16. Epub 2018 Jan 16.
    2nd Department of Medicine and Cardiology Center, University of Szeged, Semmelweis str. 8, 6725, Szeged, Hungary.
    A 52-year old female was admitted with complaints of palpitations for two years. The transthoracic echocardiography and electrocardiogram were both normal at the time of admission. We performed an electrophysiology study where the baseline intervals were in normal range. Read More

    Sedation in cardiac arrhythmias management.
    Expert Rev Cardiovasc Ther 2018 Jan 17. Epub 2018 Jan 17.
    a Cardiology and Arrhythmology Clinic , Marche Polytechnic University, University Hospital "Ospedali Riuniti" , Ancona , Italy.
    Introduction: Procedural sedation is of paramount importance for a plethora of electrophysiological procedures. From electrical cardioversion to electrophysiology studies, device implantations, and catheter ablations, intraprocedural sedation and anesthesia have a pivotal role in allowing procedural success while ensuring patient safety and avoiding discomfort. Areas covered: The present review will discuss the current state-of-the-art in sedation and anesthesia during electrical cardioversion, cardiac implantable electronic device implantation, catheter ablation and electrophysiology studies. Read More

    [Emergency medicine : update 2017].
    Rev Med Suisse 2018 Jan;14(588-589):49-53
    Service des urgences, Département de médecine communautaire, de premier recours et des urgences, HUG, 1211 Genève 14.
    Emergency medicine is part of the current stream of efficient and qualitative medicine : 1) the modified Valsava maneuver results in the resolution of almost 50% of supra-ventricular tachycardia without any drug; 2) lung echography performed by emergency physicians is a very sensitive and specific diagnostic tool for most thoracic emergencies; 3) cardiopulmonary resuscitation initiated by lay-rescuers improves short and long-term outcome; 4) no anticoagulant treatment is warranted in distal deep vein thrombosis and 5) systematic unenhanced abdominal CT might improve evaluation of elderly patients with acute abdominal pain. Read More

    Ablation-Induced Change in the Course of Fascicular Tachycardia.
    Isr Med Assoc J 2018 Jan;1(20):43-50
    Department of Cardiology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
    Background: Multiform fascicular tachycardia (FT) was recently described as a ventricular tachycardia (VT) that has a reentrant mechanism using multiple fascicular branches and produces alternate fascicular VT forms. Ablating the respective fascicle may cause a change in the reentrant circuit resulting in a change in morphology. Ablation of the septal fascicle is crucial for successful treatment. Read More

    Standard Ablation Versus Magnetic Resonance Imaging-Guided Ablation in the Treatment of Ventricular Tachycardia.
    Circ Arrhythm Electrophysiol 2018 Jan;11(1):e005973
    From the Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD (T.Z., E.G.I., R.H., H.A., R.D.B., J.E.M., D.D.S., H.T., H.H., H.C., C.H.); Department of Radiology and Radiological Sciences, Johns Hopkins Medicine, Baltimore, MD (S.L.Z., H.H.); Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD (H.H.); Department of Cardiology, Providence St. Vincent Medical Center, Portland, OR (S.B.); Division of Cardiology, Oregon Health Sciences University, Portland (C.H.); and Division of Cardiology, University of Pennsylvania Perelman School of Medicine, Philadelphia (S.N.).

    Perioperative Electrophysiology Study in Tetralogy of Fallot Patients Undergoing Pulmonary Valve Replacement Will Identify Those at High Risk for Subsequent Ventricular Tachycardia.
    Heart Rhythm 2018 Jan 9. Epub 2018 Jan 9.
    University of Colorado, Aurora, CO, USA; Children's Hospital of Colorado, Aurora, CO, USA. Electronic address:
    Background: Ventricular tachyarrhythmias (VAs) are the most common cause of death in patients with repaired Tetralogy of Fallot (TOF), but predicting those at risk remains a challenge. Electrophysiological study (EPS) has been proposed to risk stratify TOF patients.

    Objective: We sought to evaluate a perioperative EPS-guided approach to risk stratify TOF patients undergoing PVR and guide concomitant cryoablation. Read More

    The "hidden" concealed left sided accessory pathway: An uncommon cause of SVT in young people.
    Pacing Clin Electrophysiol 2018 Jan 12. Epub 2018 Jan 12.
    Lucile Packard Children's Hospital - Stanford University, Palo Alto, CA, USA.
    Background: Concealed left sided accessory pathways (CLAP) are a cause of SVT in the young. Most are mapped with RV apical/outflow pacing. Rarely, alternative means of mapping are required. Read More

    Distinguishing Uveitis Secondary to Sarcoidosis From Idiopathic Disease: Cardiac Implications.
    JAMA Ophthalmol 2018 Jan 11. Epub 2018 Jan 11.
    Casey Eye Institute, Oregon Health & Science University, Portland.
    Importance: Idiopathic disease is the most frequent diagnosis in a uveitis clinic. The need to distinguish sarcoidosis from idiopathic uveitis is controversial. However, cardiac involvement in sarcoidosis can be life-threatening. Read More

    At the Atrioventricular Crossroads: Dual Pathway Electrophysiology in the Atrioventricular Node and its Underlying Heterogeneities.
    Arrhythm Electrophysiol Rev 2017 Dec;6(4):179-185
    Department of Biomedical Engineering, The George Washington University,Washington, DC, USA.
    The atrioventricular node (AVN) is a complex structure that performs a variety of functions in the heart. The AVN is primarily an electrical gatekeeper between the atria and ventricles and introduces a delay between atrial and ventricular excitation, allowing for efficient ventricular filling. The AVN is composed of several compartments that safely transmit electrical excitation from the atria to the ventricles via the fast or slow pathways. Read More

    Premature Ventricular Contraction-induced Cardiomyopathy.
    Arrhythm Electrophysiol Rev 2017 Dec;6(4):153-155
    Division of Cardiovascular Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
    Premature ventricular contractions (PVCs) are very common and usually do not require treatment. However, in the clinical setting of troublesome symptoms, or when PVCs trigger polymorphic ventricular tachycardia or cause cardiomyopathy, proper treatment is critical. In this review, the clinical syndrome of PVC-induced cardiomyopathy, including risk factors for development and treatment, is discussed. Read More

    Acute heart failure with new-onset continuous murmur in a 26-year-old man.
    Heart 2018 Jan 11. Epub 2018 Jan 11.
    Division of Cardiovascular Surgery, Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
    Clinical Introduction: A 26-year-old man with an unremarkable medical history sensed a momentary retrosternal 'pop' followed by overwhelming dyspnoea, without reporting any prodromal symptoms. At the emergency department, he had a significant tachycardia (170 bpm) and an extreme low diastolic blood pressure (<30 mm Hg). A loud, harsh and continuous murmur could be maximally auscultated at the right lower sternal border. Read More

    Fast nonclinical ventricular tachycardia inducible after ablation in patients with structural heart disease: Definition and clinical implications.
    Heart Rhythm 2018 Jan 8. Epub 2018 Jan 8.
    Department of Cardiology. Electronic address:
    Background: Noninducibility of ventricular tachycardia (VT) with an equal or longer cycle length (CL) than the clinical VT is considered the minimum ablation endpoint in patients with structural heart disease (SHD). Since their clinical relevance remains unclear, fast nonclinical VTs are often not targeted. However, an accepted definition for fast VT is lacking. Read More

    [The efficacy and safety of coil embolization of septal branch in the treatment of patients with obstructive hypertrophic cardiomyopathy].
    Zhonghua Xin Xue Guan Bing Za Zhi 2017 Dec;45(12):1044-1048
    Department of Cardiology, Guizhou Provincial People's Hospital, Guiyang 550002, China.
    Objective: To observe the clinical efficacy and safety of coil embolization of septal branch in the treatment of obstructive hypertrophic cardiomyopathy (HOCM). Methods: Eighteen patients with HOCM hospitalized in our department from September 2014 to October 2016 were enrolled in this study. There were 12 males and 6 females in this cohort and the age of patients ranged from 22 to 64 years old. Read More

    Diagnostic accuracy and prognostic value of simultaneous hybrid 18F-fluorodeoxyglucose positron emission tomography/magnetic resonance imaging in cardiac sarcoidosis.
    Eur Heart J Cardiovasc Imaging 2018 Jan 8. Epub 2018 Jan 8.
    University College London Institute for Cardiovascular Science and Barts Heart Centre, St. Bartholomew's Hospital, West Smithfield, EC1A 7BE, London, UK.
    Aims: Cardiac death is the leading cause of mortality in patients with sarcoidosis, yet cardiac involvement often remains undetected. Cardiovascular magnetic resonance imaging (CMR) and 18F-fluorodeoxyglucose (FDG)-positron emission tomography (PET) have been used to diagnose cardiac sarcoidosis (CS) yet never simultaneously in a cohort. This study sought to assess the diagnostic and prognostic utility of simultaneous hybrid cardiac PET/MR. Read More

    Successful management of minoxidil toxicosis in a dog.
    J Am Vet Med Assoc 2018 Jan;252(2):222-226
    CASE DESCRIPTION A 2-year-old sexually intact female mixed-breed dog was evaluated at an emergency hospital approximately 5 hours after ingestion of an unknown amount of over-the-counter topical hair growth promoter containing 5% minoxidil foam. Vomiting and signs of lethargy were reported by the owner, and physical examination revealed tachycardia and hypotension. No treatments were performed, and the dog was transferred to a veterinary referral hospital for management of suspected minoxidil toxicosis. Read More

    [The PRKAG2 cardiac syndrome with familial hypertrophic cardiomyopathy: an inherited burden. A case report. Review of the literature].
    Rev Med Brux 2017 ;38(6):506-510
    Service de Cardiologie, C.H.U. Ambroise Paré, Mons.
    We report the case of a young man without prior medical history who presented with a left ventricular heart failure because of a new onset atrial fibrillation. The evolution is characterized by a sinus rythm dysfunction, a complete atrioventricular block, a non-sustained ventricular tachycardia (which required a dual-chamber defibrillator implantation) and an ischemic testicular necrosis treated by orchidectomy. After ruling out differential diagnosis we evoked an hypertrophic cardiomyopathy. Read More

    Trends and predictors of implantable cardioverter defibrillator implantation after sudden cardiac arrest: Insight from the national inpatient sample.
    Pacing Clin Electrophysiol 2018 Jan 9. Epub 2018 Jan 9.
    West Virginia University Heart & Vascular Institute, Morgantown, WV.
    Background: Implantable cardioverter defibrillator (ICD) has a class IA indication in survivors of sudden cardiac arrest (SCA) provided no reversible cause is identified. We sought to determine trends and predictors of ICD implant in SCA patients from a national sample of United States population.

    Methods And Results: Data was gathered from National Inpatient Sample (NIS) from January 2003 to December 2014. Read More

    High-Density Mapping in Ventricular Tachycardia Ablation: A PentaRay® Study.
    Cardiol Res 2017 Dec 22;8(6):293-303. Epub 2017 Dec 22.
    Department of Cardiology, Electrophysiology and Intensive Care, Klinikum Merheim, University Witten/Herdecke/Germany, Ostmerheimer Str. 200, 51109 Cologne, Germany.
    Background: High-density mapping of ventricular tachycardia (VT) with PentaRay® (Biosense-Webster) provides high resolution with discrimination of local abnormal electrograms and slow conducting channels. We evaluate the feasibility of PentaRay® to characterize the anatomical substrate and assume an influence of the outcome despite limitations.

    Methods: Over a 24-month period, 26 endocardial and four epicardial maps were obtained of 26 VT patients (18 ischemic cardiomyopathy (ICM, 69. Read More

    Quality of life with ablation or medical therapy for ventricular arrhythmias: A substudy of VANISH.
    J Cardiovasc Electrophysiol 2018 Jan 9. Epub 2018 Jan 9.
    Department of Medicine, QEII Health Sciences Centre and Dalhousie University, Halifax, NS.
    Background/objective: We compared health-related quality of life (HRQoL) in patients randomized to escalated-therapy and those randomized to ablation for ventricular tachycardia in the VANISH trial.

    Methods: HRQoL was assessed among VANISH patients at baseline and 3-, 6- and 12-month follow-up visits. Four validated instruments were used: the SF-36, the ICD Concerns questionnaire (ICDC), the Hospital Anxiety and Depression Scale (HADS), and the EuroQol five dimensions questionnaire (EQ-5D). Read More

    Thromboembolic prophylaxis protocol with warfarin after radiofrequency catheter ablation of infarct-related ventricular tachycardia.
    J Cardiovasc Electrophysiol 2018 Jan 9. Epub 2018 Jan 9.
    Division of Cardiovascular Medicine, University of Michigan, Ann Arbor, MI.
    Introduction: Ablation in the left ventricle (LV) is associated with a risk of thromboembolism. There are limited data on the use of specific thromboembolic prophylaxis strategies post-ablation. We aimed to evaluate a thromboembolic prophylaxis protocol after ventricular tachycardia (VT) ablation. Read More

    Dysautonomy in different death risk groups (rassi score) in patients with chagas heart disease.
    Pacing Clin Electrophysiol 2018 Jan 5. Epub 2018 Jan 5.
    Cardiology Department, Clementino Fraga Filho University Hospital / Cardiology Institute Edson Saad - UFRJ/ Honorary Fellow in the Department of Cardiovascular Sciences / University of Leicester - Leicester - England.
    Background: It has been difficult to prove that the "catecholamine-induced cardiomyopathy" contributes to the mechanism of sudden cardiac death in Chagas heart disease. Also, it is almost impossible to rule out the possibility that is not involved in the process. More importantly, the vagal-cholinergic pathway in the ventricle plays a direct role in the prevention of the initiation of complex ventricular arrhythmias, including non-sustained ventricular tachycardia, ventricular fibrillation responsible for sudden death. Read More

    Sudden death in patients with Ebstein anomaly.
    Eur Heart J 2018 Jan 5. Epub 2018 Jan 5.
    Department of Cardiovascular Disease, Mayo Clinic, 200 1st Street Southwest, Rochester, MN 55905, USA.
    Aims: Ventricular dysfunction or structural alteration of either ventricle is a well-established risk factor for sudden death (SD). Ebstein anomaly (EA) can present with both right and left heart abnormalities; however, predictors of SD have not been described. We therefore sought to characterize the incidence and risk factors of SD among a large cohort of patients with EA. Read More

    Ryanodine-receptor inhibition by dantrolene effectively suppresses ventricular arrhythmias in an ex vivo model of long-QT syndrome.
    J Cardiovasc Electrophysiol 2018 Jan 4. Epub 2018 Jan 4.
    Division of Electrophysiology, Department of Cardiovascular Medicine, University of Münster, Münster, Germany.
    Aims: A significant antiarrhythmic potential of ryanodine receptor inhibition was reported in experimental studies. The aim of the present study was to assess potential antiarrhythmic effects of dantrolene in an experimental whole-heart model of drug-induced long-QT syndrome (LQTS).

    Methods: In 12 isolated rabbit hearts long-QT-2-syndrome was simulated by infusion of erythromycin (300μM). Read More

    Mitral valve prolapse: an underestimated cause of sudden cardiac death-a current review of the literature.
    J Thorac Dis 2017 Dec;9(12):5390-5398
    Division of Cardiology, Onassis Cardiac Surgery Center, Athens, Greece.
    Mitral valve prolapse (MVP) is a common valve abnormality in general population. Despite the general belief of a benign disorder, several articles since the 1980s report sudden cardiac death (SCD) in MVP patients, with a substantial percentage of asymptomatic young individuals. The problem is to detect those patients at increased risk and implement methods that are suitable to prevent cardiac arrest. Read More

    Predictors of ventricular tachyarrhythmia occurring late after intracardiac repair of tetralogy of Fallot: combination of QRS duration change rate and tricuspid regurgitation pressure gradient.
    J Thorac Dis 2017 Dec;9(12):5112-5119
    Division of Thoracic and Cardiovascular Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan.
    Background: To determine potential predictors of ventricular tachyarrhythmia and sudden cardiac death (SCD) occurring late after repair of tetralogy of Fallot (TOF).

    Methods: Since 1964, 415 patients had undergone total repair for TOF at Niigata University Hospital. Of these, 89 patients who were followed for more than 10 years at our institute were retrospectively reviewed. Read More

    Hepatic Cyst Compressing The Right Atrial and Ventricular Inflow Tract: An Uncommon Cardiac Complication.
    Ann Hepatol 2018 January-February;17(1):165-168
    Department of Medicine. Metropolitan Hospital Center, New York Medical College, New York, NY, USA.
    Commonly reported complications of hepatic cysts are spontaneous hemorrhage, rupture into the peritoneal cavity, infection and compression of the biliary tree however cardiac complications are not commonly reported. We are presenting a case of a large liver cyst presenting with right atrial and ventricular inflow tract impingement resulting in cardiac symptoms. A 68 year-old Hispanic female presented with one month of fatigue and shortness of breath after household work and walking less than one block, right upper quadrant pain and weight loss. Read More

    Arrhythmias in Children in Early Postoperative Period After Cardiac Surgery.
    World J Pediatr Congenit Heart Surg 2018 Jan;9(1):38-46
    2 Department of Cardiac Anesthesia, CN Centre, All India Institute of Medical Sciences, New Delhi, India.
    Background: Postoperative arrhythmias are a known complication after cardiac surgical repairs for congenital heart disease.

    Methods: Data were reviewed pertaining to incidence, diagnosis, potential risk factors, and management of postoperative arrhythmias in 369 consecutive patients under 18 years of age, undergoing elective open heart surgery. All children were admitted to the intensive care unit and continuous electrocardiographic monitoring was performed. Read More

    Desynchronization in a cardiac resynchronization device induced by a pacemaker-mediated tachycardia algorithm.
    Indian Pacing Electrophysiol J 2018 Jan 5. Epub 2018 Jan 5.
    Biotronik, Berlin, Germany.
    This report describes the occurrence of desynchronization in a patient with a cardiac resynchronization device programmed with an active pacemaker-mediated tachycardia algorithm based on AV delay modification. Desynchronization was precipitated by sinus tachycardia and the abrupt return of the prevailing AV delay that followed the periodic prolongation of the AV delay mandated by activity of the algorithm. Prevention of desynchronization in this setting requires programming a right ventricular upper rate interval longer than the sum of the programmed ventriculoatrial interval and the AV delay. Read More

    Different responses to exercise between Andersen-Tawil syndrome and catecholaminergic polymorphic ventricular tachycardia.
    Europace 2017 Dec 22. Epub 2017 Dec 22.
    Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, 5-7-1 Fujishiro-dai, Suita, 565-8565 Osaka, Japan.
    Aims: Andersen-Tawil Syndrome (ATS) and catecholaminergic polymorphic ventricular tachycardia (CPVT) are both inherited arrhythmic disorders characterized by bidirectional ventricular tachycardia (VT). The aim of this study was to evaluate the diagnostic value of exercise stress tests for differentiating between ATS and CPVT.

    Methods And Results: We included 26 ATS patients with KCNJ2 mutations from 22 families and 25 CPVT patients with RyR2 mutations from 22 families. Read More

    Impact of surgery on presence and dimensions of anatomical isthmuses in tetralogy of Fallot.
    Heart 2018 Jan 5. Epub 2018 Jan 5.
    Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands.
    Objective: In tetralogy of Fallot (TOF), the dominant ventricular tachycardia substrates are slow-conducting anatomical isthmuses. Surgical correction has evolved, which might have influenced isthmus presence and dimensions.

    Methods: One hundred and forty-two postmortem TOF specimens (84/58 corrected/uncorrected) were studied for isthmus presence. Read More

    Effect of Baseline Antiarrhythmic Drug on Outcomes With Ablation in Ischemic Ventricular Tachycardia: A VANISH Substudy (Ventricular Tachycardia Ablation Versus Escalated Antiarrhythmic Drug Therapy in Ischemic Heart Disease).
    Circ Arrhythm Electrophysiol 2018 Jan;11(1):e005663
    From the QEII Health Sciences Centre, Halifax, Nova Scotia, Canada (R.P., J.L.S.); Dalhousie University, Halifax, Nova Scotia, Canada (R.P., J.L.S.); Institut Universitaire de Cardiologie et de Pneumologie de Quebec, Quebec City, Canada (I.N.); Montreal Heart Institute, Quebec, Canada (L.R.); University of Western Ontario, London, Canada (L.G., A.S.L.T.); McGill University Health Center, Montreal, Quebec, Canada (V.E.); Hôpital Sacré-Coeur de Montréal, Quebec, Canada (V.E.); University of Ottawa Heart Institute, Ontario, Canada (P.N., G.W.); Royal Columbian Hospital, Vancouver, British Columbia, Canada (S.T.); Centre Hospitalier de L'Universite de Montreal, Quebec, Canada (J.-M.R.); Royal Jubilee Hospital, Victoria, British Columbia, Canada (L.S.); Research Methods Unit, Dalhousie University, Halifax, Nova Scotia, Canada (S.D.); and Brigham and Women's Hospital, Boston, MA (W.G.S.).
    Background: The VANISH trial (Ventricular Tachycardia Ablation Versus Escalated Antiarrhythmic Drug Therapy in Ischemic Heart Disease) compared the effectiveness of escalated antiarrhythmic drug therapy to catheter ablation in patients with prior myocardial infarction, an implanted defibrillator, and ventricular tachycardia (VT). The effectiveness of these interventions in patients on sotalol versus amiodarone was compared.

    Methods And Results: Analysis was conducted based on whether patients had recurrent VT, despite amiodarone (amio-refractory) or nonamiodarone drugs (sotalol-refractory). Read More

    Cardiac arrest and ventricular arrhythmia in adults with Ebstein anomaly and left ventricular non-compaction.
    J Cardiol 2018 Jan 2. Epub 2018 Jan 2.
    Institute of Cardiology, Department of Congenital Heart Disease, Warsaw, Poland.
    Background: Ebstein anomaly is a complex, congenital heart defect that is associated with a variety of cardiac abnormalities. Studies found a similar sarcomere gene mutation in patients with Ebstein anomaly (EA) and patients with isolated left ventricular non-compaction (LVNC).

    Aim: We aimed to show the prevalence of LVNC and its potential relationship with severe cardiac events (VT - ventricular tachycardia, cardiac arrest) in adult patients with EA. Read More

    Left bundle branch block in Duchenne muscular dystrophy: Prevalence, genetic relationship and prognosis.
    PLoS One 2018 5;13(1):e0190518. Epub 2018 Jan 5.
    Service de Réanimation médicale et unité de ventilation à domicile, CHU Raymond Poincaré, APHP, Université de Versailles Saint Quentin en Yvelines, Garches, France.
    Background: Duchenne muscular dystrophy (DMD) is an inherited myogenic disorder due to mutations in the dystrophin gene on chromosome Xp21.1. We designed this study to determine the prevalence of left bundle branch block (LBBB), whether there is a relationship between LBBB and genetic pattern, and to assess predictive factors for acute cardiac events and mortality in adult DMD patients. Read More

    Influence of advancing age on clinical presentation, treatment efficacy and safety, and long-term outcome of inducible paroxysmal supraventricular tachycardia without pre-excitation syndromes: A cohort study of 1960 patients included over 25 years.
    PLoS One 2018 5;13(1):e0187895. Epub 2018 Jan 5.
    Department of Cardiology, Nancy University Hospital, Vandoeuvre-lès-Nancy, France.
    Aim: To investigate the influence of increasing age on clinical presentation, treatment and long-term outcome in patients with inducible paroxysmal supraventricular tachycardia (SVT) without pre-excitation syndromes.

    Methods: Clinical and electrophysiological study (EPS) data, as well as long-term clinical outcome (mean follow-up 2.4±4. Read More

    Echocardiographic and electrocardiographic abnormalities in adults living with human immunodeficiency virus: a cross-sectional study in the Yaoundé Central Hospital, Cameroon.
    Cardiovasc Diagn Ther 2017 Dec;7(6):607-615
    Department of Medicine and Specialties, Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1, Yaoundé, Cameroon.
    Background: Cardiac involvement is frequent in the course of human immunodeficiency virus (HIV) infection disease. This work aimed at studying the profile of echocardiographic and electrocardiography (ECG) abnormalities in adults living with HIV (PLHIV), compared to those not infected with HIV at the treatment unit of the Yaoundé Central Hospital.

    Methods: We carried out a case-control study over three months at the HIV treatment unit. Read More

    Delta of the local ventriculo-atrial intervals at the septal location to differentiate tachycardia using septal accessory pathways from atypical atrioventricular nodal re-entry.
    Europace 2018 Jan 2. Epub 2018 Jan 2.
    Arrhythmia Unit, Hospital Universitario Central de Asturias, Avd. de Roma sn, CP 33011, Oviedo, Spain.
    Aims: Tachycardia mediated by septal accessory pathways (AP) and atypical atrioventricular nodal re-entry (AVNRT) require careful electrophysiologic evaluation for differential diagnosis. We aim to describe the differential behaviour of local ventriculo-atrial (VA) intervals which predicts the tachycardia mechanism.

    Methods And Results: The local VA intervals at the para-Hisian septum were measured under three different situations: (i) tachycardia; (ii) sustained entrainment from the right ventricular apex (RVA); and (iii) continuous pacing from the RVA during sinus rhythm. Read More

    Advanced and traditional electrocardiographic risk factors in pulmonary arterial hypertension: the significance of ventricular late potentials.
    Kardiol Pol 2018 Jan 3. Epub 2018 Jan 3.
    Chair and Department of Cardiology, the Medical University of Lodz, the Bieganski Hospital, 1/5 Kniaziewicza Str., 91-347 Lodz, Poland.
    Background: Whether non-invasive electrocardiographic parameters may be of similar relevance in pulmonary arterial hypertension (PAH) as in left ventricular heart failure (LVHF) remains unclear.

    Aim: To examine a profile of electrocardiographic parameters in PAH and to determine their prognostic significance. Comparison of profile in patients with pulmonary hypertension secondary to left ventricular dysfunction was planned to put PAH group results into context. Read More

    Epicardial electroanatomical mapping, radiofrequency ablation, and lesion imaging in the porcine left ventricle under real-time magnetic resonance imaging guidance-an in vivo feasibility study.
    Europace 2017 Dec 26. Epub 2017 Dec 26.
    Division of Imaging Sciences and Biomedical Engineering, King's College London, 4th Floor, North Wing, St Thomas' Hospital, Westminster Bridge Road, London SE1 7EH, UK.
    Aims: Magnetic resonance imaging (MRI) is the gold standard for defining myocardial substrate in 3D and can be used to guide ventricular tachycardia ablation. We describe the feasibility of using a prototype magnetic resonance-guided electrophysiology (MR-EP) system in a pre-clinical model to perform real-time MRI-guided epicardial mapping, ablation, and lesion imaging with active catheter tracking.

    Methods And Results: Experiments were performed in vivo in pigs (n = 6) using an MR-EP guidance system research prototype (Siemens Healthcare) with an irrigated ablation catheter (Vision-MR, Imricor) and a dedicated electrophysiology recording system (Advantage-MR, Imricor). Read More

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