Risk assessment of ventricular tachyarrhythmias
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- 2.72 MB
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Futura Pub. Co. , Armonk, N.Y
Ventricular tachycardia -- Risk factors., Tachycardia, Ventricular -- epidemiology., Risk Fac
|Statement||by Mark H. Anderson.|
|Series||Clinical approaches to tachyarrhythmias ;, v. 3|
|LC Classifications||RC685.T33 A53 1995|
|The Physical Object|
|Pagination||ix, 68 p. :|
|LC Control Number||94023609|
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Description Risk assessment of ventricular tachyarrhythmias FB2
This volume provides a review of risk assessment of ventricular Biological Abstracts/RRM(R) (Reports, Reviews, Meetings) ""This book is part of an on-going series providing concise yet highly detailed reviews of tightly defined aspects of tachyarrhythmias.
Sustained monomorphic ventricular tachycardia (VT) is regarded as a high-risk marker in HCM, 1,2,5,7,8 sometimes associated with left ventricular (LV) apical aneurysm. 10 Furthermore, in an historical context, short and infrequent bursts of NSVT (usually 3 to 6 beats) were identified as markers of SCD in the early s in two studies from.
Ventricular tachyarrhythmias (VAs) most commonly occur early in ischaemia, and patients presenting with an acute MI and ventricular arrhythmias are a group that has a significantly increased risk of mortality.
1,2 Thrombolysis primary percutaneous coronary intervention (PCI) and use of beta-blockers, while resulting in the modification of the natural history of an infarct, have also reduced Cited by: 9.
T Wave Alternans And Ventricular Tachyarrhythmia Risk Stratification: A Review Article (PDF Available) in Indian pacing and electrophysiology journal 3(2) February with Reads.
Title: Acute Myocardial Infarction: High Risk Ventricular Tachyarrhythmias and Admission Glucose Level in Patients with and without Diabetes Mellitus VOLUME: 7 ISSUE: 2 Author(s):Rafael Sanjuan, Maria L.
Blasco, Helena Martinez-Maicas, Nieves Carbonell, Gema Minana, Julio Nunez, Vicente Bodi and Juan Sanchis Affiliation:Coronary Care Unit and Cardiology Service, University Clinic Hospital, AV Cited by: The EVENTS study was primarily designed to screen a general unselected pacemaker population for ventricular tachyarrhythmias.
Thus, the incidence of nsVT in high-risk Risk assessment of ventricular tachyarrhythmias book (low LVEF ≤ 40% after MI) could only be evaluated in a subgroup of the total study population.
Conflict of interest: The EVENTS Study was sponsored by Guidant GmbH Cited by: 8. Methods to assess the autonomic nervous system, which has been thought to be a modulator between triggers of ventricular tachyarrhythmias and the underlying substrate (including heart rate variability, baroreflex sensitivity, heart rate turbulence, and deceleration capacity) have been evaluated for SCD risk stratification.
Multiple studies have.
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However, during long-term follow-up of ± y, patients with abnormal ()I-MIBG SPECT findings experienced life-threatening ventricular tachyarrhythmias significantly more often (22/ Atrial and ventricular arrhythmias are a major cause of late morbidity and mortality in patients with congenital heart disease, whose care typically requires multimodality strategies involving anti-arrhythmic drugs, detailed electrophysiological studies, radiofrequency catheter ablation and device therapy.
Sudden cardiac death (SCD) continues to be a leading cause of death in Western countries, most often caused by ventricular tachyarrhythmias, such as ventricular tachycardia (VT) or fibrillation (VF), in the setting of structural heart disease.
Ventricular arrhythmias can also be a mechanism of sudden death in patients with structurally normal hearts (e.g. ion channel disorders such as long or Author: Lars Eckardt. An interesting observation was offered by the Risk Estimation Following Infarction, Non-invasive Evaluation (REFINE) study, which prospectively sought to determine whether combined assessment of autonomic modulation and cardiac electrical substrate identifies most patients at risk of serious events after MI with a less strict cut-off of LVEF Author: Dan Wichterle.
The identification of ventricular arrhythmias in athletes should always be carefully considered because of the increased risk of SCD. The main factor determining this risk is the presence of an underlying structural or primary arrhythmic heart disease.
Consequently, the identification of ventricular arrhythmias in an athlete should prompt exploratory testing, most commonly involving hour. The approach to catheter ablation of ventricular tachyarrhythmias in structurally normal hearts and in the presence of structural heart disease has been described in a series of two chapters.
Last but not least, the book reviews the role of implantable cardioverter-defibrillators (ICD) in the prevention of. Electrocardiographic diagnosis of tachycardias -- v. Risk assessment of ventricular tachyarrhythmias -- v.
Atrial fibrillation for the clinician -- v. ICD therapy -- v. The Wolff-Parkinson-White syndrome -- v. The long QT syndrome -- v. Ventricular tachyarrhythmias in the normal heart -- v. Ventricular tachycardia (VT) and VF occur mainly in people with impaired cardiac function and/or ischaemic heart disease, and account for the majority of sudden cardiac deaths worldwide.
1 Treatment with anti-arrhythmic drugs such as amiodarone may be at best neutral in terms of mortality and carries significant long-term risks. 2,3 While ICDs significantly improve survival for patients with Author: Tom Nelson, Pankaj Garg, Richard H Clayton, Justin Lee.
Abstract. For the purposes of this discussion, the focus on the use of imaging as a means for risk assessment for sudden cardiac death will be limited to patients with structural heart disease with an emphasis on the detection and characterization of by: 1.
T wave alternans (TWA) is a periodic beat-to-beat variation in the amplitude or shape of the T wave in an electrocardiogram (ECG or EKG) TWA was first described in At that time, only large variations ("macroscopic" TWA) could be detected.
Those large TWAs were associated with increased susceptibility to lethal ventricular tachycardias. Most modern references to TWA refer to microvolt T.
Catecholaminergic polymorphic ventricular tachycardia (CPVT) is characterized by episodic syncope occurring during exercise or acute emotion in individuals without structural cardiac abnormalities. The underlying cause of these episodes is the onset of fast ventricular tachycardia (bidirectional or polymorphic).
Spontaneous recovery may occur when these arrhythmias by: Early studies on the use of invasive EP testing to risk-stratify patients at increased risk of malignant ventricular arrhythmias were performed in AMI survivors – reports from these studies were conflicting, with nearly half of all studies finding that the inducibility of sustained VT was unhelpful in predicting later mortality or arrhythmic Author: Reginald Liew.
Heart failure patients are predisposed to develop arrhythmias. Supraventricular arrhythmias can exacerbate the heart failure symptoms by decreasing the effective cardiac output and their control require pharmacological, electrical, or catheter-based intervention.
In the setting of atrial flutter or atrial fibrillation, anticoagulation becomes paramount to prevent systemic or cerebral by: Ventricular tachycardia duration 30 beats 13 (0) 10 (1) 0 (0) 1 (1) Average ventricular tachycardia frequency (bpm) 6 30 6 30 6 29 6 Accelerated idioventricular rhythm present (7) (11) (17) 33 (20), A thorough understanding of the clinical course of these diseases, including the risk of conduction disease and sudden cardiac death from ventricular tachyarrhythmias, is the role of the clinical electrophysiologist in a multidisciplinary care team.
Finsterer J, Stöllberger C, Maeztu C. Sudden cardiac death in neuromuscular disorders. Ventricular tachycardia refers to a wide QRS complex heart rhythm — that is, a QRS duration beyond milliseconds — originating in the ventricles at a rate of greater than beats per minute. HYPERTROPHIC cardiomyopathy (HCM) is a genetic cardiac disorder caused by mutations in one of at least 12 sarcomeric or nonsarcomeric genes and is recognized as the most common cause of sudden cardiac death (SCD) in the young and an important substrate for disability at any age.1,2 The broad phenotypic expression and disease complexity have consistently generated uncertainty regarding this.
Univariate analysis indicated that an initial radionuclide left ventricular ejection fraction (EF) of less than was associated with the greatest relative risk (RR = ), although the percent of abnormally contracting regions (RR = ) and thallium defect index (RR = ) were also significant risk factors.
Despite improvements in pharmacological therapy and pacing, prognosis in advanced heart failure (HF) remains poor, with a 1‐year mortality of 25–50%.
While heart transplantation provides excellent survival and quality of life for eligible patients, only a few can be offered this treatment due to Cited by: Cardiac programmed electrical stimulation (PES) is often reserved for second-step risk stratification after non-invasive assessment.
10,17 It has been widely demonstrated that PES is helpful in selecting a subgroup of MI survivors without spontaneous ventricular arrhythmias who benefit from prophylactic ICD implantation, 10,17 while in patients.
Sudden cardiac death (SCD), most often induced by ventricular arrhythmias, is one of the main reasons for cardiovascular-related mortality.
While coronary artery disease remains the leading cause of SCD, other pathologies like cardiomyopathies and, especially in the younger population, genetic disorders, are linked to arrhythmia-related mortality.
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Despite many efforts to enhance the efficiency Author: Zornitsa Shomanova, Bernhard Ohnewein, Christiane Schernthaner, Killian Höfer, Christian A. Pogoda. Assessment of T-Wave Alternans Sanjiv M.
Narayan Introduction Suddencardiacarrest(SCA)causesmorethan,deathsperyearintheUnited States alone, largely from ventricular arrhythmias . T-wave alternans (TWA) is a promising ECG index that indicates risk for SCA from beat-to-beat alternations in the shape, amplitude, or timing of T waves.
Thomas SS, Naumi N, Han J, Lippel M, Colombo P, Yuzefpolskaya M, Takayama H, Naka Y, Uriel N, Jorde P. Pre-operative mortality risk assessment in patients with continuous-flow left ventricular assist devices: Application of the HeartMate II risk score.
Kawasaki Disease (Mucocutaneous Lymph Node Syndrome) Kawasaki Disease (KD) is an acute multi-system immune-mediated vasculitis of unknown etiology. It usually presents in infancy and early childhood with 85% of those affected are less than 5 years of age.
KD is the leading cause of acquired heart disease in children in the US.Arrhythmia, also known as cardiac arrhythmia or heart arrhythmia, is a group of conditions in which the heartbeat is irregular, too fast, or too slow.
The heart rate that is too fast – above beats per minute in adults – is called tachycardia, and a heart rate that is too slow – below 60 beats per minute – is called bradycardia. Some types of arrhythmias have no cations: Stroke, heart failure.OCLC Number: Notes: "September " Description: xi, pages illustrations ; 24 cm.
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