title: [Congenital junctional ectopic tachycardia. Pharmacologic management during infancy].
abstract: Congenital junctional ectopic tachycardia (JET) is a rare arrhythmia that can be refractory to medical therapy with high morbidity and mortality rates. The aim of this study was to report our experience with pharmacologic management of congenital JET in infants. Seven patients with congenital JET were identified between 2008 and 2010. Only two of them presented dilated cardiomyopathy. There were no congenital structural defects. Amiodarone was given to all the patients, as single therapy in one, and in combination with propranolol in four. In one patient flecainide was administered together with amiodarone and propranolol, and in another patient was used combined with amiodarone. During follow- up with an average time of 12.2 months (median 9.75 months, range 1-28 months), sinus rhythm alternating with slow junctional tachycardia was successfully achieved in 3 patients; no side effects were detected. There was only one death in our study group. The combination of different antiarrhythmics (amiodarone plus propranolol, and eventually flecainide) is a valid option for rhythm control and management of JET in infants.
authors.affiliation: Servicio de Cardiología Pediátrica, Hospital de Niños de Córdoba, Buenos Aires, Argentina. monibenjamin@hotmail.com
authors.forename: Mónica N
authors.initials: MN
authors.lastname: Benjamín
authors.forename: Juan
authors.initials: J
authors.lastname: Infante
authors.forename: Julián
authors.initials: J
authors.lastname: Olmedo
authors.forename: Mauricio
authors.initials: M
authors.lastname: Abello
authors.forename: José M
authors.initials: JM
authors.lastname: Moltedo
mesh_terms: D000638:Amiodarone / Q000627:therapeutic use*; D000889:Anti-Arrhythmia Agents / Q000627:therapeutic use*; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D011433:Propranolol / Q000627:therapeutic use*; D012189:Retrospective Studies; D013613:Tachycardia, Ectopic Junctional / Q000175:diagnosis / Q000188:drug therapy*; D016896:Treatment Outcome
chemical_list: D000889:Anti-Arrhythmia Agents; D011433:Propranolol; D000638:Amiodarone