title: [Supraventricular tachycardia in newborn infants and infants].
abstract: Four types of supraventricular tachycardia were identified in a retrospective study of 71 babies who presented under the age of 3 months. The arrhythmia originated in the atrium in the first two types (25% of cases, atrial tachycardia 10 cases, chaotic atrial tachycardia 7 cases). In the other types the arrhythmia originated at the atrioventricular node. Reciprocal rhythms were most common (62%) and those starting in the bundle of His the least common (5%). It is relatively easy to distinguish the different types which are important because treatment may vary. Overall 75% recover completely, 11% have sporadic recurrences and 10% have a chronic arrhythmia. The junctional varieties have the worst prognosis.
mesh_terms: D001145:Arrhythmias, Cardiac / Q000209:etiology; D001283:Atrioventricular Node / Q000503:physiopathology; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria / Q000503:physiopathology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000503:physiopathology*; D008297:Male; D012189:Retrospective Studies; D013614:Tachycardia, Paroxysmal / Q000150:complications / Q000503:physiopathology*; D014927:Wolff-Parkinson-White Syndrome / Q000150:complications
vernacular_title: Les tachycardies supra-ventriculaires du nouveau-né et du nourrisson.