Idiopathic ventricular outflow tract arrhythmias from the great cardiac vein: Challenges and risks of catheter ablation

Steven, D; Pott, C; Bittner, A; Sultan, A; Wasmer, K; Hoffmann, B A; Köbe, J; Drewitz, I; Milberg, P; Lueker, J; Mönnig, G; Servatius, Helge Simon; Willems, S; Eckardt, L (2013). Idiopathic ventricular outflow tract arrhythmias from the great cardiac vein: Challenges and risks of catheter ablation. International journal of cardiology, 169(5), pp. 366-370. Elsevier 10.1016/j.ijcard.2013.09.008

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INTRODUCTION

Catheter ablation for idiopathic ventricular arrhythmia is well established but epicardial origin, proximity to coronary arteries, and limited accessibility may complicate ablation from the venous system in particular from the great cardiac vein (GCV).

METHODS

Between April 2009 and October 2010 14 patients (56 ± 15 years; 9 male) out of a total group of 117 patients with idiopathic outflow tract tachycardias were included undergoing ablation for idiopathic VT or premature ventricular contractions (PVC) originating from GCV. All patients in whom the PVC arose from the GCV were subject to the study. In these patients angiography of the left coronary system was performed with the ablation catheter at the site of earliest activation.

RESULTS

Successful ablation was performed in 6/14 (43%) and long-term success was achieved in 5/14 (36%) patients. In 4/14 patients (28.6%) ablation was not performed. In another 4 patients (26.7%), ablation did not abolish the PVC/VT. In the majority, the anatomical proximity to the left coronary system prohibited effective RF application. In 3 patients RF application resulted in a coronary spasm with complete regression as revealed in repeat coronary angiography.

CONCLUSION

A relevant proportion idiopathic VT/PVC can safely be ablated from the GCV without significant permanent coronary artery stenosis after RF application. Our data furthermore demonstrate that damage to the coronary artery system is likely to be transient.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Cardiovascular Disorders (DHGE) > Clinic of Cardiology

UniBE Contributor:

Servatius, Helge Simon (A)

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0167-5273

Publisher:

Elsevier

Language:

English

Submitter:

Helge Simon Servatius

Date Deposited:

03 Mar 2014 11:20

Last Modified:

29 Mar 2023 23:33

Publisher DOI:

10.1016/j.ijcard.2013.09.008

PubMed ID:

24182908

Uncontrolled Keywords:

Catheter ablation, Coronary artery system, Coronary venous system, Premature ventricular beats, Ventricular tachycardia

URI:

https://boris.unibe.ch/id/eprint/42343

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