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Electrophysiology Multimedia Library
3D Electrical Mapping
3D H.U.
Active Fixation Lead
Angina
Arrhythmias
Atherosclerosis
Atherosclerosis Comp.
Atrial Fib. Ablation
Atrial Fibrillation
Atrial Flutter
Atrial Flutter Ablation
Atrial Septal Defect
Atrial Tach. Focal
Atrial Tachycardia
AV Node Ablation
AVNRT
AVRT
Blood Clot
Blood Flow
Blood Flow - Electric
Bradycardia
Bundle Branches
Bundle of His
Cardiac Arrest
Cardiac Catheter
Cardiomyop. Hypertr.
Catheter Ablation
Common Heart Problems
Coronary Angiogram
Coronary Angioplasty
Coronary Art. Disease
Coronary Arteries
CRT Device
Cryotherapy
Device Monitoring
Ebstein Syndrome
Echocardiogram
Ejection Fraction
Electrical System
Electrocardiogram
Electrophysiol. Study
Exercise Stress Test
External Defibrillator
HBP Complications
Heart Valve Surgery
Heart and Lungs
Heart Attack
Heart Block
Heart Chambers
Heart Failure
Heart Location
Heart Transplant
Heart Valve Disease
High Blood Pressure
High Cholesterol
Holter Monitor
ICD Device
Lead
Long QT Syndrome
Loop Recorder & Syncope
Mitral Regurgitation
Mitral Valve
Mitral Valve Stenosis
Pacemakers
Pacemakers - Dual
Passive Fixation Lead
Patent Foramen Ovale
Pulmonary Embolism
PVC
Right Atrium
Single Ventricle
Sinus Rhythm
Sinus Tachycardia
Smoking Cessation
Stroke
SVT
Syncope
Ventric. Assist Device
Ventric. Fibrillation
Ventric. Septal Defect
Ventric. Tach. Ablation
Ventric. Tach. Focal
Ventric. Tach. Idiopath.
Ventric. Tach. Ischem.
Ventric. Tach. RVOT
Ventric. Tachycardia
Wolff-Parkinson White

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Atrioventricular Reentry Tachycardia (AVRT) or Wolff-Parkinson White Syndrome (WPW) is a condition in which the heart beats too fast due to abnormal, extra electrical pathways between the heart’s upper and lower chambers.

The electrical system of the heart is made up of several parts that communicate with one another to signal the heart muscle fibers when to contract. The SA node starts the signal causing the atria to contract. This signal travels through the AV node and on to the bundle of His, bundle branches causing the ventricles to contract. The flow of electrical signals is what produces a normal heartbeat.

If there's an extra conduction pathway, the electrical signal may cause rapid heart rate (tachycardia). AVRT can be present at birth (congenital), but symptoms can appear at any time. More women than men are diagnosed with AVRT. Treatments include medications and some surgical procedures.


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Leo Polosajian, M.D.
Diplomate American Board of Cardiovascular Disease
Cardiac Electrophysiology
 

18350 Roscoe Blvd. Suite 213
Northridge, CA 91325
Office: (818) 718-1600
Fax: (818) 718-1920

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