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{{SK}}[[PSVT]], [[Narrow complex tachycardia|Narrow QRS complex tachycardia]], [[AV nodal reentrant tachycardia|Atrioventricular nodal reentrant tachycardia]], [[AV nodal reentrant tachycardia|AVNRT]], [[Supraventricular arrhythmias|Supraventricular arrhythmia]], [[Supraventricular tachycardia]], [[Tachyarrhythmia]], [[Arrhythmia]].
{{SK}}[[PSVT]], [[Paroxysmal supraventricular arrythmia|Paroxysmal supraventricular arrhythmia]]  


==[[Paroxysmal supraventricular tachycardia overview|Overview]]==
==[[Paroxysmal supraventricular tachycardia overview|Overview]]==
Paroxysmal Supraventricular tachycardia (PSVT) is a subset of supraventricular tachycardia (SVT), characterized by its episodic nature with sudden onset, sudden offset, regular, rapid rhythm and narrow QRS complex on Electrocardiogram (ECG), usually the patient is normal in between attacks and except for patients with preexisting heart disease, the prognosis is usually good.
== [[Paroxysmal supraventricular tachycardia historical perspective|Historical Perspective]] ==
==[[Paroxysmal supraventricular tachycardia historical perspective|Historical Perspective]]==
== [[Paroxysmal supraventricular tachycardia classification|Classification]] ==
Catheter-based radiofrequency ablation has improved the treatment of PSVT by precise ablation of the abnormal accessory pathway.  First catheter ablations were in the early to mid-1980s, since then it has improved progressively  especially in terms of safety and specificity.


==[[Paroxysmal supraventricular tachycardia classification|Classification]]==
== [[Paroxysmal supraventricular tachycardia causes|Causes]] ==
SVTs are classified based on the origin and regularity of the rhythm. i


''Atrial in origin''
== [[Paroxysmal supraventricular tachycardia differential diagnosis|Differentiating Paroxysmal supraventricular tachycardia from other Diseases]] ==
== [[Paroxysmal supraventricular tachycardia epidemiology and demographics|Epidemiology and Demographics]] ==


·        Sinus tachycardia
== [[Paroxysmal supraventricular tachycardia risk factors|Risk Factors]] ==


·        Inappropriate sinus tachycardia
== [[Paroxysmal supraventricular tachycardia natural history, complications and prognosis|Natural History, Complications and Prognosis]]  ==


·        Sinoatrial nodal reentrant tachycardia
== [[Paroxysmal supraventricular tachycardia diagnosis|Diagnosis]] ==
 
[[Paroxysmal supraventricular tachycardia history and symptoms|History and Symptoms]] | [[Paroxysmal supraventricular tachycardiaphysical examination|Physical Examination]] | [[Paroxysmal supraventricular tachycardia laboratory findings|Laboratory Findings]] | [[Paroxysmal supraventricular tachycardia electrocardiogram|Electrocardiogram]] | [[Paroxysmal supraventricular tachycardia other diagnostic studies|Other Diagnostic Studies]]
·        Atrial flutter
 
·        Atrial fibrillation
 
·        Multi atrial focal tachycardia
 
''AV nodal in origin:''
 
·        Junctional tachycardia
 
·        Atrioventricular nodal reentrant tachycardia
 
·        Atrioventricular reentrant tachycardia
 
Regular SVT:
 
·        All tachycardia originating from the AV node
 
·        Sinus tachycardia
 
·        Inappropriate sinus tachycardia
 
·        Sinoatrial nodal reentrant tachycardia
 
·        Atrial flutter
 
''Irregular SVT''
 
·        Multifocal atrial tachycardia
 
·        Atrial flutter with variable block
 
·        Atrial fibrillation
 
==[[Paroxysmal supraventricular tachycardia pathophysiology|Pathophysiology]]==
PSVTs are due to abnormalities in in impulse formation and conduction pathways. Often due to different reentry circuits in the heart, less frequently causes include enhanced or abnormal automaticity and triggered activity.
 
==[[Paroxysmal supraventricular tachycardia causes|Causes]]==
Reentry circuits  are the most common cause
 
a.    About 60% are due to  AVNRT either within
 
·        AV node
 
·        perinodal atrial tissue.
 
b.    30% are due to Atrioventricular reciprocating tachycardia (AVRT)
 
( extranodal accessory pathway connecting the atrium and ventricle, e.g. Wolff-Parkinson-White syndrome (WPW).)
 
c.    10% are due to pathways within or around the sinus node:
 
·        Focal atrial tachycardia ,
 
·        Intraatrial reentrant tachycardia (IART)
 
·         Sinoatrial nodal reentrant tachycardia (SANRT)
 
d.    Other rare causes (Rare in adults, but can represent a larger portion of PSVTs in children) are due to
 
·        Junctional ectopic tachycardia
 
·        Non-paroxysmal junctional tachycardia
 
==[[Paroxysmal supraventricular tachycardia differential diagnosis|Differentiating Paroxysmal supraventricular tachycardia from other Diseases]]==
 
==[[Paroxysmal supraventricular tachycardia epidemiology and demographics|Epidemiology and Demographics]]==
 
==[[Paroxysmal supraventricular tachycardia risk factors|Risk Factors]]==
 
==[[Paroxysmal supraventricular tachycardia screening|Screening]]==
 
==[[Paroxysmal supraventricular tachycardia natural history, complications and prognosis|Natural History, Complications and Prognosis]]==
 
==Diagnosis==
[[Paroxysmal supraventricular tachycardia diagnostic study of choice|Diagnostic study of choice]] | [[Paroxysmal supraventricular tachycardia history and symptoms|History and Symptoms]] | [[Paroxysmal supraventricular tachycardiaphysical examination|Physical Examination]] | [[Paroxysmal supraventricular tachycardia laboratory findings|Laboratory Findings]] | [[Paroxysmal supraventricular tachycardia electrocardiogram|Electrocardiogram]] | [[Paroxysmal supraventricular tachycardia x ray|X-Ray Findings]] | [[Paroxysmal supraventricular tachycardia echocardiography and ultrasound|Echocardiography and Ultrasound]] | [[Paroxysmal supraventricular tachycardia CT scan|CT-Scan Findings]] | [[Paroxysmal supraventricular tachycardia MRI|MRI Findings]] | [[Paroxysmal supraventricular tachycardia other imaging findings|Other Imaging Findings]] | [[Paroxysmal supraventricular tachycardia other diagnostic studies|Other Diagnostic Studies]]


==Treatment==
==Treatment==
[[Paroxysmal supraventricular tachycardia medical therapy|Medical Therapy]] | [[Paroxysmal supraventricular tachycardia interventions|Interventions]] | [[Paroxysmal supraventricular tachycardia surgery|Surgery]] | [[Paroxysmal supraventricular tachycardia primary prevention|Primary Prevention]] | [[Paroxysmal supraventricular tachycardia secondary prevention|Secondary Prevention]] | [[Paroxysmal supraventricular tachycardia cost-effectiveness of therapy|Cost-Effectiveness of Therapy]] | [[Paroxysmal supraventricular tachycardia future or investigational therapies|Future or Investigational Therapies]]
[[Paroxysmal supraventricular tachycardia medical therapy|Acute treatment]] | [[Paroxysmal supraventricular tachycardia surgery|Long term treatme]][[Psvt|nt]] [[Paroxysmal supraventricular tachycardia primary prevention|<nowiki>| Prevention</nowiki>]]


==Case Studies==
==Case Studies==
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Latest revision as of 23:44, 12 July 2020

Paroxysmal supraventricular tachycardia Microchapters

Home

Patient Information

Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Paroxysmal supraventricular 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

Echocardiography and Ultrasound

CT scan

MRI

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

Case #1

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Noha Elzeiny, M.B.B.Ch, M.Sc.[2]

Synonyms and keywords:PSVT, Paroxysmal supraventricular arrhythmia

Overview

Historical Perspective

Classification

Causes

Differentiating Paroxysmal supraventricular tachycardia from other Diseases

Epidemiology and Demographics

Risk Factors

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms | Physical Examination | Laboratory Findings | Electrocardiogram | Other Diagnostic Studies

Treatment

Acute treatment | Long term treatment | Prevention

Case Studies

Case #1


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