Idiopathic left ventricular outflow tract ectopy: a single focus with extremely divergent breakouts

BMC Cardiovascular Disorders

Josef Kautzner¹  Petr Peichl¹  Dan Wichterle¹  Sherif Gouda² 

[1]Department of Cardiology, Institute for Clinical and Experimental Medicine, Vídeňská 1958/9, Prague 14021, Czech Republic

[2]Department of Cardiology, Cairo University, Cairo, Egypt

关键词: Catheter ablation;    Non-coronary aortic cusp;    Preferential conduction;    Left ventricular outflow tract;    Premature ventricular contractions;    Ventricular tachycardia;   

Others  :  1088690
DOI  :  10.1186/1471-2261-14-161

 received in 2014-04-30, accepted in 2014-09-29,  发布年份 2014

【 摘 要 】

Background

Idiopathic ventricular tachycardia (VT) and/or premature ventricular contractions (PVCs) arise most commonly from the right ventricular outflow tract and less frequently from the left ventricular outflow tract (LVOT), either below or above the semilunar valves.

Case presentation

We report a case of 24-year-old man with idiopathic ventricular tachycardia from a single focus in the supravalvular left ventricular outflow tract with two extremely divergent breakouts observed during the ablation procedure.

Conclusion

Focal sources of ventricular arrhythmia in the aortic root may have different preferential exits and meticulous activation sequence mapping is the preferable strategy to delineate the site of origin.

【 授权许可】

   
2014 Gouda et al.; licensee BioMed Central Ltd.

【 图 表 】

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