Are there different types of WPW?
The W-P-W syndrome has been divided into two types (A and B) on the basis of the direction of the dominant QRS deflection in lead Vi. 6 In type A the delta wave and the remainder of the QRS complex are primarily upright in lead V, which shows R, RS, Rs, RSr’, and Rsr’ patterns.
What is WPW syndrome in ECG?
Wolff-Parkinson-White is characterized by the presence of an “accessory pathway” or a “bypass tract.” This connects the electrical system of the atria directly to the ventricles, allowing conduction to avoid passing through the atrioventricular node.
What is WPW type B?
In type-B WPW syndrome patients without conduction delay in the normal A-V conduction system, the septal myocardium is contracted by the fused conduction of the right lateral AP and normal A-V conduction system. The LV dyssynchrony is not remarkable, and LV dysfunction is rarely induced.
What type of arrhythmia is WPW?
The most common arrhythmia seen with WPW syndrome is supraventricular tachycardia. Supraventricular tachycardia causes episodes of a fast, pounding heartbeat that begin and end abruptly. Some people with WPW syndrome also have a fast and chaotic heart rhythm problem called atrial fibrillation.
What is the difference between SVT and Wolff Parkinson White?
What is SVT? Supraventricular tachycardia (SVT) refers to a group of abnormal fast heart rhythms that arise because of a problem involving the upper chambers of the heart. WPW is short for Wolf-Parkinson White syndrome which is a special form of SVT.
Is AVRT a WPW?
Topic Overview. Wolff-Parkinson-White (WPW) syndrome is a heart rhythm problem that causes a very fast heart rate. WPW is one type of supraventricular tachycardia called atrioventricular reciprocating tachycardia (AVRT).
What are the three types of SVT?
Supraventricular tachycardia falls into three main groups:
- Atrioventricular nodal reentrant tachycardia (AVNRT).
- Atrioventricular reciprocating tachycardia (AVRT).
- Atrial tachycardia.
What is the difference between WPW and SVT?
Supraventricular tachycardia (SVT) refers to a group of abnormal fast heart rhythms that arise because of a problem involving the upper chambers of the heart. WPW is short for Wolf-Parkinson White syndrome which is a special form of SVT.
Is WPW Orthodromic or Antidromic?
Only about 5% of the tachycardias in patients who have WPW syndrome are antidromic tachycardias; the remaining 95% are orthodromic.
What is preexcitation on ECG?
Preexcitation, or the WPW abnormality on the ECG, occurs when the atrial impulse activates the entire ventricle or some part of it, or the ventricular impulse activates the entire atrium or some part of it, earlier than would be expected if the impulse traveled only by way of the normal specialized conduction system ( …
What is the difference between WPW and atrial fibrillation?
Irregularly irregular rhythm, broad and varying QRS complexes, rapid ventricular response often approaching 200/minute, a delta wave are all clues to distinguishing atrial fibrillation in WPW. Distinguishing these rhythms based on an ECG is difficult.
What is WPW syndrome ECG?
Wolff-Parkinson-White (WPW) Syndrome ECG Review. This connects the electrical system of the atria directly to the ventricles, allowing conduction to avoid passing through the atrioventricular node. In normal individuals, when the sinus node creates an action potential, it must pass through the AV node to get to the ventricles.
What is Wolff-Parkinson-White syndrome ECG?
Wolff-Parkinson-White (WPW) Syndrome ECG Review. Wolff-Parkinson-White is characterized by the presence of an “accessory pathway” or a “bypass tract.” This connects the electrical system of the atria directly to the ventricles, allowing conduction to avoid passing through the atrioventricular node.
What is WPW syndrome type B?
Wolff Parkinson White (WPW) Syndrome Type B The ECG was recorded from a 23 year old man with a history of palpitations since childhood ECG. Rhythm: Sinus rhythm is present throughout. Morphology: the PR interval is abnormally short at .10 seconds.
What are the ECG features of WPW in sinus rhythm?
ECG features of WPW in sinus rhythm are: Pseudo-infarction pattern can be seen in up to 70% of patients – due to negatively deflected delta waves in the inferior / anterior leads (“pseudo-Q waves”), or as a prominent R wave in V1-3 (mimicking posterior infarction). The features of pre-excitation may be subtle, or present only intermittently.