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Successful ablation of incessant idiopathic right ventricular tachycardia arising from unusual sites in children

Published online by Cambridge University Press:  13 July 2015

Lin Wu ,
Hong Tian ,
Feng Wang ,
Xuecun Liang  and
Gang Chen
Lin Wu
Affiliation:
Cardiovascular Center, Children’s Hospital of Fudan University, Shanghai 201102, PR China
Hong Tian
Affiliation:
Cardiovascular Center, Children’s Hospital of Fudan University, Shanghai 201102, PR China
Feng Wang
Affiliation:
Cardiovascular Center, Children’s Hospital of Fudan University, Shanghai 201102, PR China
Xuecun Liang
Affiliation:
Cardiovascular Center, Children’s Hospital of Fudan University, Shanghai 201102, PR China
Gang Chen*
Affiliation:
Cardiology Department, Shanghai First People’s Hospital Affiliated to Jiaotong University, Shanghai 200082, PR China
*
Correspondence to: G. Chen, Cardiology department, Shanghai First People’s Hospital affiliated to Jiaotong University, No. 100, Haining Road, Shanghai 200082, PR China. Tel: +86 216 493 2800; E-mail: chengang@medmail.com.cn
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Abstract

Objective

Most idiopathic right ventricular tachycardias originate from the outflow tract. We present a case series of idiopathic incessant ventricular tachycardia arising from unusual sites of the right ventricle in children, which were well resolved by catheter ablation.

Methods

A retrospective review was performed of all three patients who underwent ablation of idiopathic ventricular tachycardia below the level of the right ventricular outflow tract using three-dimensional mapping in our institute.

Result

All three patients presented with tachycardia-induced cardiomyopathy due to incessant ventricular tachycardia on first admission. The sites of successful ablation were at the proximal right bundle branch, distal right bundle branch, and apex of the right ventricle, respectively. No complications occurred, and there has been no recurrence of ventricular tachycardia after the final ablation at an average follow-up period of 9 months. All three patients have achieved normalisation of left ventricular size and systolic function.

Conclusion

Incessant idiopathic ventricular tachycardia originating from unusual sites of the right ventricle in children, resulting in significant symptoms and impaired ventricular function, can be successfully treated with catheter ablation.

Keywords

Catheter ablationidiopathic ventricular arrhythmiaright ventricletachycardia-induced cardiomyopathypaediatric
Type
Original Articles
Information
Cardiology in the Young , Volume 26 , Issue 4 , April 2016 , pp. 764 - 771
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Copyright
© Cambridge University Press 2015 

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Footnotes

*

Lin Wu and Hong Tian contributed equally to this work.

References

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