Recovery pattern of left ventricular dysfunction following radiofrequency ablation of incessant supraventricular tachycardia in infants and children

Autor: J V De Giovanni, John G.C. Wright, M J Griffith, E. D. Silove, Oliver Stumper, Aygün Dindar, R A Edgar
Rok vydání: 1998
Předmět:
Zdroj: Heart. 79:588-592
ISSN: 1355-6037
DOI: 10.1136/hrt.79.6.588
Popis: Objective—To assess recovery pattern of left ventricular function secondary to incessant tachycardia after radiofrequency ablation in a group of infants and children. Design and setting—A combined prospective and retrospective echocardiographic study carried out in a tertiary paediatric cardiac centre. Patients—Echocardiographic evaluation of left ventricular size and function in nine children with incessant tachycardia, before and after successful radiofrequency ablation. Age at ablation ranged from 2 months to 12.5 years (mean 4.1 years). Recovery of left ventricular function was analysed in relation to age at ablation (group I 18 months). Main outcome measure—Ventricular recovery pattern. Results—Seven of the nine children had left ventricular dysfunction; six of these also had left ventricular dilatation. All children with left ventricular dysfunction had normalisation of ejection fraction and fractional shortening; left ventricular dilatation also improved, but the improvement occurred after recovery of function. There was a shorter recovery time for left ventricular function in younger (group I) than in older children (group II) (mean (SD) 5.7 (7.2) months v 31.3 (5.2) (p
Databáze: OpenAIRE