Dreaded arrhythmia in association with WPW syndrome (Wolff-Parkinson-White syndrome) is:
1. Orthodromic atrioventricular re-entrant tachycardia (Orthodromic AVRT)
2. Antidromic atrioventricular re-entrant tachycardia (Antidromic AVRT)
3. Atrial fibrillation
4. Atrial flutter
Correct Answer