Abstract: Objective:To observe the clinical characteristics and treatment effects of paroxysmal supraventricular tachycardia in children.Methods:A total of 100 children with paroxysmal supraventricular tachycardia were chosen as the research subjects, who were treated in Hunan Children's Hospital from May 2015 to April 2017. The children were divided into 4 groups according to different treatment:32 in physiotherapy group(A), 40 in drug therapy group(B), 12 in drug therapy+electroversion group(C), and 16 in drug therapy+radiofrequency ablation group(D).Group A was managed by stimulating nervi vagus to normalize the heart rate. Group B was treated with propafenone, amiodarone and digoxin. Group C was treated with electroversion in addition to the drug therapy, and group D was managed by radiofrequency ablation besides drug therapy. Observe the conversion time of heart rate and the success rate, and the treatment results of different therapies.Results:The conversion time of heart rate was the longest in group A, followed by group B, group C and group D in turn; there was statistical difference among the four groups(P<0.05). The success rate was the highest in group D, followed by group C, group B and group A in turn, and the difference was statistically significant(P<0.05). The conversion rate by propafenone was the lowest, and amiodarone the highest(P<0.05).Conclusion:The characteristics of paroxysmal supraventricular tachycardia are significant in children, and there are various treatments. Clinically, the treatment of drug+radiofrequency ablation is preferred, followed by drug+electroversion. The result of pure drug therapy or physiotherapy is not satisfactory.

Key words: Tachycardia, Paroxysmal, Supraventricular, Child