Abstract | BACKGROUND: AIMS: To evaluate the feasibility of using an 8-mm tip catheter in patients with OTVEBs. METHODS: In this prospective cohort study, the 8-mm tip catheter was tested in patients who were referred to our centre for RFA of symptomatic OTVEBs. RESULTS: The mean age of the 16 patients recruited between September 2008 and March 2010 was 53±18 years and 56.3% were male. Mean left ventricular ejection fraction was 62±9%, mean ventricular ectopic beat width was 144±21 ms, and all patients had left bundle branch block. Fourteen patients had inferior axis QRS morphology and two had superior. The main symptoms were palpitations and pre- syncope. RFA parameters were: procedure time 94±35 min; duration of application 11±10 min; impedance 81±12 Ω; temperature 50±5 °C; and power 46±17 W. RFA succeeded in 15 over 16 patients (93.8%); and recurrence was seen in one patient after a mean follow-up time of 11±6 months. No complications were noted. CONCLUSIONS: This preliminary study suggests that an 8-mm tip catheter may represent an alternative for RFA in patients with OTVEBs in whom a 4-mm tip was not successful. Larger randomized studies are therefore warranted.
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Authors | Antoine Da Costa, Lila Khris, Abdallah Nadrouss, Pierre Chafiotte, Cécile Romeyer-Bouchard, Laurence Bisch, Alexie Gate-Martinet, Karl Isaaz |
Journal | Archives of cardiovascular diseases
(Arch Cardiovasc Dis)
Vol. 105
Issue 1
Pg. 24-32
(Jan 2012)
ISSN: 1875-2128 [Electronic] Netherlands |
PMID | 22369915
(Publication Type: Comparative Study, Journal Article)
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Copyright | Copyright © 2012 Elsevier Masson SAS. All rights reserved. |
Topics |
- Catheter Ablation
(instrumentation)
- Catheters
- Echocardiography
- Electrocardiography
- Equipment Design
- Female
- Follow-Up Studies
- Heart Conduction System
(physiopathology, surgery)
- Humans
- Magnetic Resonance Imaging, Cine
- Male
- Middle Aged
- Prospective Studies
- Treatment Outcome
- Ventricular Function, Left
- Ventricular Premature Complexes
(diagnosis, physiopathology, surgery)
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