P1012Radiofrequency catheter ablation of accessory pathways at the site of prior valve surgery
Abstract Background Radiofrequency catheter ablation (RFCA) for accessory pathways (APs) at the site of prior valve surgery remains challenging. We aimed to clarify the factors associated with successful RFCA for such APs. Methods Upon reviewing a RFCA registry and previous case reports, we included...
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Veröffentlicht in: | European heart journal 2019-10, Vol.40 (Supplement_1) |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Abstract
Background
Radiofrequency catheter ablation (RFCA) for accessory pathways (APs) at the site of prior valve surgery remains challenging. We aimed to clarify the factors associated with successful RFCA for such APs.
Methods
Upon reviewing a RFCA registry and previous case reports, we included nine patients who underwent RFCA of APs at the site of prior valve surgery (total-VS group; age, 34.0 [24.5–45.0] years; men, 4/9) and 196 patients who underwent RFCA of APs with no history of valve surgery (no-VS group; age, 40.5 [23.0–54.0] years; men, 114/196). Electrophysiological features, procedural details, and outcomes were examined.
Results
AP exhibited decremental conduction in four of nine patients in the total-VS group. The number of RFCA attempts was significantly higher in the total-VS group than in the no-VS group (10.0 [4.5–14.5] vs 2.0 [1.0–3.0]; p |
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ISSN: | 0195-668X 1522-9645 |
DOI: | 10.1093/eurheartj/ehz747.0604 |