A Case of Chaotic Atrial Tachycardia and Noonan's Syndrome

Abstract

Although chaotic atrial tachycardia (CAT) is a rare arrhythmia in children, some cases of Noonan's syndrome have been reported to be related with CAT. We encountered an infant with CAT and Noonan's syndrome. The present case showed atrial wall thickening and pulmonary interstitial consolidation just prior to the onset of CAT, which may indicate a relation between CAT and Noonan's syndrome.