[Clinical significance and treatment of cardiac arrhythmia in children].

Cardiac dysrhythmias during childhood are not infrequent. Often they are found in otherwise healthy children, sometimes in connection with myocarditis, cardiomyopathy, congenital heart defects or after cardiac surgery. Cardiac dysrhythmias may be subdivided in bradydysrhythmias (sinuatrial block, sinus arrest, atrioventricular block) and tachydysrhythmias (supraventricular extrasystoles, supraventricular tachycardia, atrial flutter, atrial fibrillation, ventricular extrasystoles, and ventricular tachycardia). Frequently, cardiac dysrhythmias in children do not need treatment; in other cases, treatment is necessary and effective while for some cases a satisfactory treatment is not available at present.