Accessory pathway causes pre-excitation → SVT and rarely SCD.
Diagnosis
- • Short PR <120, delta wave, wide QRS
Management
- • Symptomatic: catheter ablation of accessory pathway
- • Acute SVT: vagal, adenosine (avoid if AF)
- • AF with pre-excitation: procainamide or ibutilide; AVOID AV nodal blockers (digoxin, verapamil) → VF
Related in WardRound
Educational — verify locally.
