Verapamil-sensitive ventricular tachycardia in an infant.
METHODS
We report on a 6-month-old patient with a right bundle, superior axis tachycardia at 197 beats per minute. The tachycardia was unresponsive to adenosine, propranolol, flecainide, or amiodarone, or synchronized cardioversion. Overdrive atrial pacing terminated the tachycardia and since initiating verapamil, no recurrences of his tachycardia have occurred.


CONCLUSIONS
If an infant presents with a right bundle, superior axis ventricular tachycardia unresponsive to multiple antiarrhythmic medications and synchronized cardioversion, but responsive to overdrive atrial pacing, one must consider verapamil-sensitive ventricular tachycardia and initiate appropriate therapy.
Snyder
Christopher
C
Ochsner Clinic Foundation-Pediatric Cardiology, New Orleans, LA 70121, USA. csnyder@ochsner.org
Bishara
James
J
Darling
Rani
R
Lucas
Victor
V
D000889:Anti-Arrhythmia Agents / Q000627:therapeutic use*; D003937:Diagnosis, Differential; D022062:Electrophysiologic Techniques, Cardiac; D006801:Humans; D007223:Infant; D008297:Male; D010138:Pacemaker, Artificial; D017180:Tachycardia, Ventricular / Q000175:diagnosis* / Q000628:therapy*; D014700:Verapamil / Q000627:therapeutic use*
D000889:Anti-Arrhythmia Agents; D014700:Verapamil