A Wolff- Parkinson- White Surprise Case

37-year-old-gentleman, who was presented in three occasional times to emergency department for a fast, precordial, and rhythmic symptomatic palpitations, in which the last episode was with a duration that lasted more than an hour with instability vitally that ended in performing emergency electrical cardioversion. All these episodes were symptomatic and last hospitalization was associated with pre syncopal and syncopal attacks. With evidence of Wolff-Parkinson-White syndrome the patient was brought to Electrophysiology Lab to EP study and ablation.