Wolff-Parkinson-White syndrome
Pronunciation: WOOLF-PARK-in-son-WHITE
A cardiac conduction disorder characterized by an accessory electrical pathway causing pre-excitation and predisposing to arrhythmias.
Full Definition
Wolff-Parkinson-White (WPW) syndrome is a congenital heart condition featuring an abnormal electrical connection (accessory pathway) between the atria and ventricles, bypassing the normal AV node conduction system. This creates ventricular pre-excitation visible as a delta wave on ECG, with shortened PR interval and widened QRS complex. Patients may experience supraventricular tachycardia, and rarely, life-threatening arrhythmias if atrial fibrillation conducts rapidly through the accessory pathway. Treatment may include medications, catheter ablation, or lifestyle modifications.
Usage
Usage note: May be abbreviated as WPW in clinical documentation after full term is established.
In Context
- "The ECG showed classic features of Wolff-Parkinson-White syndrome with prominent delta waves." — electrocardiogram interpretation
- "Radiofrequency ablation was recommended for symptomatic Wolff-Parkinson-White syndrome." — electrophysiology consultation