Refractory adenosine-sensitive congenital his bundle tachycardia: response to calcium-channel blockers
Sharada, K.; Narasimhan, C.; Rao, K.N.; Soma Raju, B.
Indian Heart Journal 55(3): 259-261
2003
ISSN/ISBN: 0019-4832 PMID: 14560937 Document Number: 558217
The congenital form of His bundle tachycardia is an uncommon pediatric arrhythmia. We report the case of a 7-year-old child with tachycardiomyopathy. The incessant arrhythmia, detected in infancy, was resistant to amiodarone and beta-blockers. During electrophysiologic study, the tachycardia converted to sinus rhythm with intravenous adenosine and diltiazem. Subsequently, the child is maintaining sinus rhythm on oral verapamil. Calcium-channel blockers should be considered for the treatment of this arrhythmia, which is often resistant to multiple antiarrhythmic drugs.