Tachyarrhymias in the pre-excitation syndromes
Wolff-Parkinson-White syndrome (WPW) is the result of an abnormal atrioventricular conduction pathway which is distinct from the atrioventricular node. The refractory period of the extra pathway is typically shorter than the AV node.
As a result, patients with WPW are susceptible to two main arrhythmias:
- atrioventricular re-entrant tachycardias
- atrial fibrillation with rapid ventricular response:
- the tachycardia may degenerate into ventricular fibrillation
Reference
- Brugada J, Katritsis DG, Arbelo E, et al. 2019 ESC Guidelines for the management of patients with supraventricular tachycardia. The Task Force for the management of patients with supraventricular tachycardia of the European Society of Cardiology (ESC). Eur Heart J. 2020 Feb 1;41(5):655-720.
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