13. The treatment effect of paroxysmal supraventricular tachycardia with reduced left ventricular systolic function by radiofrequency energy at Vietnam National Children’s Hospital
Main Article Content
Abstract
This study assessed the results of the initial treatment of paroxysmal supraventricular tachycardia (PSVT) with reduced left ventricular systolic function in children using radiofrequency (RF). The study was conducted at Vietnam National Children's Hospital from January 2017 to June 2020. A total of 35 patients under 18 years of age with a diagnosis of PSVT or Wolf-Parkinson-White (WPW) with reduced left ventricular systolic function were enrolled and were treated with RF. The average age was 2.61 years old and the average weight was 12.4kg. Electrophysiological studies identified 25 patients with atrioventricular reentry tachycardia (AVRT), 9 patients with atrial tachycardia (AT), 1 patient with atrioventricular nodal reentrant tachycardia (AVNRT). Successful ablation rate was 92% for AVRT, 55.6% for AT, with 3.57% recurrence rate and no complications. The mean left ventricular diastolic diameter and left ventricular ejection fraction before intervention were 3.5 ± 3.4 SD and 41.2 ± 11.6%, respectively. After 3 months of intervention, the left ventricular ejection fraction value of the intervention group returned to normal range. The results show that using RF to treat SVT is effective and safe for children, and helps to improve left ventricular systolic function.
Article Details
Keywords
paroxysmal supraventricular tachycardia in children, Vietnam National Children’s Hospital
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