Pulseless ventricular tachycardia: Difference between revisions
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==[[Pulseless ventricular tachycardia classification|Classification]]== | ==[[Pulseless ventricular tachycardia classification|Classification]]== | ||
[[Pulseless ventricular tachycardia]] as a [[ventricular tachycardia]], may be classified based on the [[morphology]] of the [[QRS complexes]] into two subtypes/groups: [[monomorphic ventricular tachycardia]], and [[polymorphic ventricular tachycardia]]. | |||
==[[Pulseless ventricular tachycardia pathophysiology|Pathophysiology]]== | ==[[Pulseless ventricular tachycardia pathophysiology|Pathophysiology]]== | ||
Revision as of 07:21, 1 June 2020
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Pulseless ventricular tachycardia Microchapters |
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Differentiating Pulseless ventricular tachycardia from other Diseases |
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Diagnosis |
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Treatment |
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Case Studies |
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Pulseless ventricular tachycardia On the Web |
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American Roentgen Ray Society Images of Pulseless ventricular tachycardia |
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Risk calculators and risk factors for Pulseless ventricular tachycardia |
File:Pulseless ventriculat tachycardia.jpg For patient information, click here
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Aisha Adigun, B.Sc., M.D.[2]
Synonyms and keywords:
Overview
Pulseless ventricular tachycardia is an often fatal cardiac dysrhythmia where the regular rhythmic contraction of the heart is replaced by non-rhythmic, faster, yet inadequate contractions. These ineffective contractions do not appropriately perfuse the organ, leading to ischemia as well as heart failure. This condition requires immediate medical attention as it is an emergency and can lead to ventricular fibrillation and sudden death.[1]
Historical Perspective
Classification
Pulseless ventricular tachycardia as a ventricular tachycardia, may be classified based on the morphology of the QRS complexes into two subtypes/groups: monomorphic ventricular tachycardia, and polymorphic ventricular tachycardia.
Pathophysiology
Rapid abnormal automaticity and triggered activity are thought to be the main electrophysiological mechanisms of pulseless ventricular tachycardia.
Causes
Structural heart disease is the most common cause of pulseless ventricular tachycardia. Other causes include but are not limited to, drugs/medications, congenital heart diseases, not to mention congenital and inherited channelopathies. It is important to note that QT interval lengthening medications, as well as electrolyte disturbances, can also result in pulseless ventricular tachycardia.[2]
Differentiating Pulseless ventricular tachycardia from other Diseases
Epidemiology and Demographics
Risk Factors
Screening
Natural History, Complications and Prognosis
Diagnosis
Diagnostic study of choice | History and Symptoms | Physical Examination | Laboratory Findings | Electrocardiogram | X-Ray Findings | Echocardiography and Ultrasound | CT-Scan Findings | MRI Findings | Other Imaging Findings | Other Diagnostic Studies
Treatment
Medical Therapy | Interventions | Surgery | Primary Prevention | Secondary Prevention | Cost-Effectiveness of Therapy | Future or Investigational Therapies
Case Studies
Related Chapters
- Tachycardia
- Ventricular Tachycardia
- Wide complex tachycardia
- Ventricular fibrillation
- Supraventricular tachycardia
- ↑ Foglesong A, Mathew D. PMID 32119354 Check
|pmid=value (help). Missing or empty|title=(help) - ↑ Baldzizhar A, Manuylova E, Marchenko R, Kryvalap Y, Carey MG (September 2016). "Ventricular Tachycardias: Characteristics and Management". Crit Care Nurs Clin North Am. 28 (3): 317–29. doi:10.1016/j.cnc.2016.04.004. PMID 27484660.