Neonatal supraventricular extrasystole as early clinical debut of cardiac rhabdomyoma
We are reporting the case of a newborn with a diagnosis of frequent supraventricular extrasystoles, up to 25% of beats at Holter monitoring, and partial response to beta-blockers.Initial echocardiographic studies were normal until the identification of a right atrial mass at 4 months of life.Given the progressive growth of the mass and the suspicio