passages.id: 5640
passages.type: title
passages.text: Amiodarone-induced sinoatrial block.
passages.id: 5641
passages.type: abstract
passages.text: We observed sinoatrial block due to chronic amiodarone administration in a 5-year-old boy with primary cardiomyopathy, Wolff-Parkinson-White syndrome and supraventricular tachycardia. Reduction in the dosage of amiodarone resulted in the disappearance of the sinoatrial block and the persistence of asymptomatic sinus bradycardia.