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Pol. Merkur. Lek (Pol. Med. J.), 2015, XXXIX/233: 271-276 Maximize

Pol. Merkur. Lek (Pol. Med. J.), 2015, XXXIX/233: 271-276

Title: The effectiveness of RF ablation of ventricular ectopic beats made using selected mapping techniques

Authors: Senderek T, Bednarek J, Lelakowski J.

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SUMMARY IN POLISH & ENGLISH. FULL ARTICLE ONLY IN POLISH

The effectiveness of RF ablation of ventricular ectopic beats made using selected mapping techniques


Senderek T1, Bednarek J1, Lelakowski J2.

1The John Paul II Hospital in Kraków, Department of Electrocardiology; 2Jagiellonian University, Institute of Cardiology, Department of Electrocardiology, The John Paul II Hospital in Kraków

Only several world-leading centers have summarized outcomes of invasive therapy of ventricular arrhythmia.
The aim of the work
is to compare the effectiveness of RF ablation of ventricular arrhythmia.
Material and methods
. 183 patients (111 males, mean age 50±17) underwent RF ablation of ventricular ecopic beats (VEB). Retrospective analysis of procedural protocols, in- and outpatient medical records was performed. RF ablation was done using electroanatomical CARTO system, Pacemapping or both methods (CARTO + Pacemapping).
Results
. Long-term ablation effectiveness was as follows: CARTO – success rate assessed during the ablation procedure was 84,4%; during post operation period follow-up 70,3%, and in long term followup 71,1%; Pacemaping-success rate assessed during the ablation procedure was 91,7%; during post operation period follow-up 83,3%, and in long term follow-up 75,0%; CARTO + Pacemaping – success rate assessed during the ablation procedure was 85,4%; during post operation period follow-up 70,8%, and in long term follow-up 77,1%. Mean amount of VEBs per day before ablation was 18750±12560 (2435 to 50000) and after ablation 575±428 (0 to 1550), p
Conclusions. Long-term success of ventricular extrasystoly ablation in combined method (CARTO+Pacemapping) was slightly higher compared in CARTO technique and in Pacemapping technique. Classic RF ablation is effective and safe, therefore it can be considered as first-line therapy. In ablation, precise localization of arrhythmic focus is the most important factor. Ablation temperature and energy were significantly correlated to long-term ablation effectiveness. After ventricular extrasystoly ablation, left ventricle ejection fraction increased and left ventricle end-diastolic diameter decreased. Hypertension significantly decreased long-term effectiveness of ventricular extrasystoly ablation.

Key words: RF ablation, ventricular ectopic beats, CARTO, Pacemapping system

Pol Med J, 2015; XXXIX (233); 271–276.