cardiovascular disorders
Atrial Fibrillation and Wolff Parkinson White Syndrome (WPW)
Introduction
In Wolff-Parkinson-White syndrome, antegrade conduction occurs over an accessory pathway. If atrial fibrillation, develops this is a medical emergency as very rapid ventricular rates can develop. (See also Overview of Arrhythmias and In manifest Wolff-Parkinson-White (WPW) syndrome , antegrade conduction occurs over the accessory pathway. If Ventricular response is very fast (RR intervals minimum of 160 msec). Shortly thereafter, ventricular fibrillation develops (lead II continuous rhythm strip at bottom). 