Journal Article

P.3. Basic Science, Sudden Death Risk Stratification and Ventricular Arrhythmias

E. Parmon, T. Treshkur, D. Lebedev and M. Ovetchkina

in EP Europace

Published on behalf of European Heart Rhythm Association of the European Society of Cardiology (ESC)

Volume 7, issue s3, pages S51-S51
Published in print October 2005 | ISSN: 1099-5129
Published online October 2005 | e-ISSN: 1532-2092 | DOI: https://dx.doi.org/10.1016/j.eupc.2005.08.210
P.3. Basic Science, Sudden Death Risk Stratification and Ventricular Arrhythmias

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Background

In accordance with literature data the effect of radiofrequency catheter ablation (RFCA) depends on the cause of ventricular parasystole (VP), its location and the technical aspects of RFCA.

Aim

The aim of the study was the analysis of early and long-term results of RFCA of non-coronary patients with ventricular parasystolic centers (VPC).

Materials and Methods

Since 1998 RFCA was performed in 46 patients (28 women, 18 men; mean age 46.2±3.1 years) with VPC. Different non-ischemic cardiovascular pathology was discovered in 28 patients; in 18 patients the VP was idiopathic. All the patients before being included into the study underwent ECG, Holter ECG, echocardiography, ETT, intracavitory electrophysiologic study, MRI.

Results

The intraoperative efficacy of RFCA was 96%. In 2 (4%) cases RFCA was unsuccessful because of the subepicardial origin of arrhythmogenic focus. The follow-up duration was 46±15.2 months. The success rate of RFCA was about 65% at 1 month, 54% at 6 months, 45% at 12 months. This the recurrence rate of VP was 55% at VP originating from right ventricle recruited more often than those originating from left ventricle (90% vs 10%). Moreover VP recurred during 6 months in all the patients with arrhythmogenic dysplasia of right ventricle. In the patients with myocarditis, hypertensive disease and idiopathic VP the success rate ranged from 50% to 77%.

Conclusion

We conclude that in patients with VP underlying heart disease the success rate of RFCA depends on localization of VPC.

Journal Article.  0 words. 

Subjects: Cardiovascular Medicine

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