Ventricular Tachycardia Questions & Answers

Updated: Dec 05, 2017
  • Author: Steven J Compton, MD, FACC, FACP, FHRS; Chief Editor: Jeffrey N Rottman, MD  more...
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Questions & Answers

Overview

What is ventricular tachycardia (VT)?

What are symptoms of ventricular tachycardia (VT)?

Which physical findings are characteristic of ventricular tachycardia (VT)?

How is ventricular tachycardia (VT) diagnosed?

Why are electrolyte levels measured in patients with suspected ventricular tachycardia (VT)?

Which lab studies are performed in the evaluation of ventricular tachycardia (VT)?

What is included in the diagnostic workup following ventricular tachycardia (VT) conversion?

What is the role of electrophysiologic study (EPS) in the diagnosis of ventricular tachycardia (VT)?

How should unstable patients with monomorphic ventricular tachycardia (VT) be treated?

Which medications are used in the management of ventricular tachycardia (VT)?

What are the indications for implantable cardioverter-defibrillators in the treatment of ventricular tachycardia (VT)?

What are the indications for radiofrequency ablation (RFA) in the treatment of ventricular tachycardia (VT)?

What is ventricular tachycardia (VT)?

In which conditions is ventricular tachycardia (VT) commonly seen?

What are the possible triggers of ventricular tachycardia (VT)?

What is the presentation of ventricular tachycardia (VT)?

What are the ECG criteria for diagnosing ventricular tachycardia (VT)?

What are the variants of ventricular tachycardia (VT)?

What is the pathophysiology of ventricular tachycardia (VT)?

What causes hemodynamic collapse in ventricular tachycardia (VT)?

What increases the mortality risk from monomorphic ventricular tachycardia (VT)?

What is the role of dilated cardiomyopathy in the etiology of ventricular tachycardia (VT)?

What is the role of hypertrophic cardiomyopathy in the etiology of ventricular tachycardia (VT)?

What are causes of ventricular tachycardia (VT)?

What is the role of QT prolongation in the etiology of ventricular tachycardia (VT)?

What are the most common cardiac causes of sudden death following ventricular tachycardia (VT)?

What is the role of long QT syndrome in the etiology of ventricular tachycardia (VT)?

What causes catecholaminergic polymorphic ventricular tachycardia (CPVT)?

What is the role of arrhythmogenic right ventricular dysplasia (ARVD) in the etiology of ventricular tachycardia (VT)?

What is the role of Brugada syndrome in the etiology of ventricular tachycardia (VT)?

What is familial ventricular tachycardia (VT)?

What is the incidence of ventricular tachycardia (VT) in the US?

How does the prevalence of ventricular tachycardia (VT) vary by age?

How does the prevalence of ventricular tachycardia (VT) vary by sex?

What is the prognosis of ventricular tachycardia (VT)?

What can alter the prognosis of ventricular tachycardia (VT)?

Presentation

What are symptoms of ventricular tachycardia (VT)?

What should be the focus of patient history in the evaluation of ventricular tachycardia (VT)?

Which physical findings are characteristic of ventricular tachycardia (VT)?

DDX

Which conditions should be included in the differential diagnoses of ventricular tachycardia (VT)?

Which rhythms must be distinguished from ventricular tachycardia (VT)?

What are the differential diagnoses for Ventricular Tachycardia?

Workup

How is ventricular tachycardia (VT) diagnosed?

How is ventricular tachycardia (VT) evaluated in unstable patients?

What is included in the evaluation of a ventricular tachycardia (VT)?

What are the 2017 American Heart Association (AHA) guidelines for evaluation of ventricular tachycardia (VT)?

When is screening for ventricular tachycardia (VT) indicated?

How is family screening performed for ventricular tachycardia (VT)?

What is the role of chest radiography in the evaluation of ventricular tachycardia (VT)?

Which lab studies are performed in the diagnosis of ventricular tachycardia (VT)?

What is polymorphic ventricular tachycardia (VT) and how is it characterized on electrocardiogram (ECG)?

What is monomorphic ventricular tachycardia (VT)?

What causes monomorphic ventricular tachycardia (VT) in the absence of underlying heart disease?

In which sites do monomorphic ventricular tachycardia (VT) originate?

How is monomorphic ventricular tachycardia (VT) differentiated from supraventricular tachycardia (VT) on ECG?

What is the morphology of a fusion beat in ventricular tachycardia (VT)?

What is the morphology of a capture beat in ventricular tachycardia (VT)?

What are the ECG discrimination criteria for ventricular tachycardia (VT)?

How is ventricular tachycardia (VT) differentiated from sinus tachycardia?

What is the role of signal-averaged electrocardiogram (SAECG) in the evaluation of ventricular tachycardia (VT)?

What is the role of echocardiography in the evaluation of ventricular tachycardia (VT)?

What is the role of cardiac imaging in the evaluation of ventricular tachycardia (VT)?

How are recurrent syncope or palpitations assessed in the evaluation of ventricular tachycardia (VT)?

What is the role of genetic testing in the evaluation of ventricular tachycardia (VT)?

What is the role of myocardial biopsy in the evaluation of ventricular tachycardia (VT)?

What information can cardiac devices provide during the evaluation of ventricular tachycardia (VT)?

What is the role of electrophysiologic study (EPS) in the evaluation of ventricular tachycardia (VT)?

When is angiography performed with EPS for the evaluation of ventricular tachycardia (VT)?

When is EPS indicated in the workup of ventricular tachycardia (VT)?

Treatment

What are symptoms of hemodynamically unstable ventricular tachycardia (VT)?

What are the treatment options for hemodynamically unstable ventricular tachycardia (VT)?

Which factors affect treatment selection in hemodynamically stable ventricular tachycardia (VT)?

What are the treatment options for hemodynamically stable monomorphic ventricular tachycardia (VT)?

What are the treatment options for hemodynamically stable polymorphic ventricular tachycardia (VT)?

How is ventricular tachycardia (VT) managed following conversion?

What are the 2017 American Heart Association (AHA) treatment guidelines for ventricular tachycardia (VT)?

What is included in prehospital emergent care for ventricular tachycardia (VT)?

What is the initial treatment of acute ventricular tachycardia (VT)?

What are the treatment options for pulseless ventricular tachycardia (VT)?

What is included in poststabilization management of ventricular tachycardia (VT)?

What are the long-term treatment options for ventricular tachycardia (VT)?

What is the role of radiofrequency ablation (RFA) in the treatment of ventricular tachycardia (VT)?

What is the role of implantable cardioverter-defibrillators in the treatment of ventricular tachycardia (VT)?

Which dietary modifications may be beneficial in the management of ventricular tachycardia (VT)?

Which activity modifications may be beneficial in the treatment of ventricular tachycardia (VT)?

Which specialist consultations are needed for the management of ventricular tachycardia (VT)?

What is the basis for selection of medications for outpatient treatment of ventricular tachycardia (VT)?

What should be included in long-term monitoring of antiarrhythmic therapy for ventricular tachycardia (VT)?

What should be included in long-term monitoring of patients with ICD to manage ventricular tachycardia (VT)?

Which medications are contraindicated in patients with polymorphic VT in association with a prolonged QT interval?

Guidelines

Which organizations have issued guidelines for cardiopulmonary resuscitation (CPR) and emergency cardiovascular care (ECC) for ventricular tachycardia (VT)?

What is AHA treatment algorithm for ventricular tachycardia (VT)?

What are the AHA guidelines for defibrillation in patients with ventricular tachycardia (VT)?

What are the AHA guidelines for airway control and ventilation in ventricular tachycardia (VT)?

What are the AHA guidelines for the administration of drugs during cardiac arrest due to ventricular tachycardia (VT)?

What are the European Society of Cardiology (ESC) treatment guidelines for ventricular tachycardia (VT)?

What are the ACCF/HRS/AHA/ASE/HFSA/SCAI/SCCT/SCMR guidelines for the use of implantable cardioverter-defibrillator therapy in ventricular tachycardia (VT)?

What are the AHA guidelines for the use of wearable cardioverter-defibrillator therapy in ventricular tachycardia (VT) patients?

What are the HRS/EHRA/APHRS guidelines for the diagnosis and treatment of catecholaminergic polymorphic ventricular tachycardia (CPVT)?

Medications

What is the role of antiarrhythmic medications in the treatment of ventricular tachycardia (VT)?

Which medications in the drug class Vasopressin-Related are used in the treatment of Ventricular Tachycardia?

Which medications in the drug class Alpha-/Beta-Adrenergic Agonists are used in the treatment of Ventricular Tachycardia?

Which medications in the drug class Alkalinizing Agents are used in the treatment of Ventricular Tachycardia?

Which medications in the drug class Electrolytes are used in the treatment of Ventricular Tachycardia?

Which medications in the drug class Beta Blockers, Beta1-Selective are used in the treatment of Ventricular Tachycardia?

Which medications in the drug class Antiarrhythmics, Class III are used in the treatment of Ventricular Tachycardia?

Which medications in the drug class Antiarrhythmics, Class IC are used in the treatment of Ventricular Tachycardia?

Which medications in the drug class Antiarrhythmics, Class IB are used in the treatment of Ventricular Tachycardia?

Which medications in the drug class Antiarrhythmics, Class IA are used in the treatment of Ventricular Tachycardia?