Ventricular tachycardia classification: Difference between revisions

Jump to navigation Jump to search
Line 5: Line 5:
==Overview==
==Overview==
[[Ventricular tachycardia]] refers to a [[rhythm]] with a [[heart rate]] in excess of 100 (and in some definitions 120) [[beats per minute]] that arises distal to the [[bundle of His]]. [[Ventricular tachycardia]] can be classified based on morphology and duration The [[morphology]] of the [[QRS complexes]] on the [[ECG]] maybe ([[monomorphic ventricular tachycardia]] vs [[polymorphic ventricular tachycardia]]). In sustained [[VT]]  duration of [[VT]] lasts > 30 sec or [[VT]]< 30 sec that needs to termination due to compromised [[hemodynamic]]. Nonsustained, or unsustained [[VT]]is more than 3 consecutive [[premature ventricular complexes]] with spontaneously termination.
[[Ventricular tachycardia]] refers to a [[rhythm]] with a [[heart rate]] in excess of 100 (and in some definitions 120) [[beats per minute]] that arises distal to the [[bundle of His]]. [[Ventricular tachycardia]] can be classified based on morphology and duration The [[morphology]] of the [[QRS complexes]] on the [[ECG]] maybe ([[monomorphic ventricular tachycardia]] vs [[polymorphic ventricular tachycardia]]). In sustained [[VT]]  duration of [[VT]] lasts > 30 sec or [[VT]]< 30 sec that needs to termination due to compromised [[hemodynamic]]. Nonsustained, or unsustained [[VT]]is more than 3 consecutive [[premature ventricular complexes]] with spontaneously termination.
|


==Classification Based Upon Morphology of the QRS Complexes==
==Classification Based Upon Morphology of the QRS Complexes==

Revision as of 06:55, 21 May 2021

Ventricular tachycardia Microchapters

Home

Patient Information

Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Ventricular Tachycardia from other Disorders

Epidemiology and Demographics

Risk Factors

Screening

Natural History, Complications and Prognosis

Diagnosis

Diagnostic Study of Choice

History and Symptoms

Physical Examination

Laboratory Findings

Electrocardiogram

Chest X Ray

Echocardiography

Cardiac MRI

Other Diagnostic Tests

Treatment

Medical Therapy

Electrical Cardioversion

Ablation

Surgery

Primary Prevention

Secondary Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Case Studies

Case #1

Ventricular tachycardia classification On the Web

Most recent articles

Most cited articles

Review articles

CME Programs

Powerpoint slides

Images

Ongoing Trials at Clinical Trials.gov

US National Guidelines Clearinghouse

NICE Guidance

FDA on Ventricular tachycardia classification

CDC onVentricular tachycardia classification

Ventricular tachycardia classification in the news

Blogs on Ventricular tachycardia classification

to Hospitals Treating Ventricular tachycardia classification

Risk calculators and risk factors for Ventricular tachycardia classification

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Sara Zand, M.D.[2] Cafer Zorkun, M.D., Ph.D. [3]

Overview

Ventricular tachycardia refers to a rhythm with a heart rate in excess of 100 (and in some definitions 120) beats per minute that arises distal to the bundle of His. Ventricular tachycardia can be classified based on morphology and duration The morphology of the QRS complexes on the ECG maybe (monomorphic ventricular tachycardia vs polymorphic ventricular tachycardia). In sustained VT duration of VT lasts > 30 sec or VT< 30 sec that needs to termination due to compromised hemodynamic. Nonsustained, or unsustained VTis more than 3 consecutive premature ventricular complexes with spontaneously termination.

Classification Based Upon Morphology of the QRS Complexes

Classification of ventriculat arrhythmia:

Term Definition Feature
Ventricular tachycardia[1] Presence of ≥ 3 consecutive premature ventricular complexes with the rate of >100 beats per minute or cycle length< 600 ms
[2]
Sustained VT
  • VT> 30 sec
  • VT< 30 sec that needs to termination due to compromised hemodynamic
Nonsustained, or unsustained VT
Monomorphic VT
  • Uniform and stable beat to beat QRS morphology
  • 12 lead electrocardiogram showing a run of monomorphic ventricular tachycardia (VT)
    12 lead electrocardiogram showing a run of monomorphic ventricular tachycardia (VT)
Polymorphic VT
  • Changing beat to beat QRS morphology
  • Adopted from Wikipedia
Bidirectional VT
Torsades de pointes
[3]
Ventricular flutter
[4]
Ventricular fibrillation
[5]
VT, VF storm
  • Electerical storm or cardiac instability due to ≥ 3 episodes of sustained VT, VF or shock delivery from ICD within 24 hours

References

  1. "ACC/AHA/HRS 2006 Key Data Elements and Definitions for Electrophysiological Studies and Procedures". Circulation. 114 (23): 2534–2570. 2006. doi:10.1161/CIRCULATIONAHA.106.180199. ISSN 0009-7322.
  2. ECG found in of https://en.ecgpedia.org/index.php?title=Main_Page
  3. ECG found in https://en.ecgpedia.org/index.php?title=Main_Page
  4. ECG found in https://en.ecgpedia.org/index.php?title=Main_Page
  5. ECG found in https://en.ecgpedia.org/index.php?title=Main_Page


Template:WH Template:WS