Myocardial Scarring of the Ventricular Outflow Tract Causing Ventricular Tachycardia in Idiopathic Dilated Cardiomyopathy with Successful Radiofrequency Ablation

2018 ◽  
Vol 27 ◽  
pp. S180
Author(s):  
R. Chetty ◽  
A. Rajwani ◽  
A. Powell
Keyword(s):  
Ventricular Tachycardia ◽  
Radiofrequency Ablation ◽  
Dilated Cardiomyopathy ◽  
Ventricular Outflow Tract ◽  
Outflow Tract ◽  
Idiopathic Dilated Cardiomyopathy ◽  
Myocardial Scarring

Idiopathic Dilated Cardiomyopathy Ventricular Tachycardia

2020 ◽  
pp. 475-478
Author(s):  
Ricardo M. Lugo ◽  
Arvindh Kanagasundram ◽  
William G. Stevenson
Keyword(s):  
Ventricular Tachycardia ◽  
Dilated Cardiomyopathy ◽  
Idiopathic Dilated Cardiomyopathy

Non-contact mapping and ablation of tachycardia originating in the right ventricular outflow tract

2002 ◽  
Vol 12 (3) ◽  
pp. 294-297 ◽  
Author(s):  
Thomas Paul ◽  
Andrew T. D. Blaufox ◽  
J. Philip Saul
Keyword(s):  
Ventricular Tachycardia ◽  
Right Ventricular ◽  
Electrophysiological Study ◽  
Right Ventricular Outflow Tract ◽  
Ventricular Outflow Tract ◽  
Outflow Tract ◽  
Mechanical Pressure ◽  
Contact Mapping ◽  
The Right ◽  
Endocardial Activation

We performed an electrophysiological study, using non-contact mapping, in an 8-year-old girl weighing 39.9 kg who had suffered recurrent symptomatic episodes of exercise-induced non-sustained ventricular tachycardia. Color-coded isopotential maps of the ventricular tachycardia identified the area of earliest endocardial activation high and anterior in the right ventricular outflow tract. Although partial deflation of the balloon was required to position the ablation catheter at the earliest site of activation, this site was still identified accurately, as demonstrated by termination of the ventricular tachycardia and ectopy upon mechanical pressure, as well as application of radiofrequency current.In this young patient, precise mapping of the earliest endocardial activation using the non-contact mapping system was safe and effective, allowing successful radiofrequency ablation of the tachycardia.

Sign in / Sign up

Export Citation Format

Share Document