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JAÏS, Pierre; MAURY, Philippe; SHAH, Ashok; DERVAL, Nicolas; COCHET, Hubert; KNECHT, Sebastien; MIYAZAKI, Shinsuke; LINTON, Nick; RIVARD, Lena; WRIGHT, Matthew; WILTON, Stephen B; SCHERR, Daniel; KHAIRY, Paul; PASCALE, Patrizio; ROTEN, Laurent; PEDERSON, Michala; BORDACHAR, Pierre; LAURENT, François; KIM, Steven J; RITTER, Philippe; CLEMENTY, Jacques; HAÏSSAGUERRE, Michel; SACHER, Frédéric; NAULT, Isabelle; KOMATSU, Yuki; HOCINI, Meleze; FORCLAZ, Andrei; JADIDI, Amir S; WEERASOORYIA, Rukshen
Circulation (New York, N.Y.), 05/2012, Letnik: 125, Številka: 18Journal Article
Catheter ablation of ventricular tachycardia (VT) is effective and particularly useful in patients with frequent defibrillator interventions. Various substrate modification techniques have been described for unmappable or hemodynamically intolerable VT. Noninducibility is the most frequently used end point but is associated with significant limitations, so the optimal end point remains unclear. We hypothesized that elimination of local abnormal ventricular activities (LAVAs) during sinus rhythm or ventricular pacing would be a useful and effective end point for substrate-based VT ablation. As an adjunct to this strategy, we used a new high-density mapping catheter and frequently used epicardial mapping. Seventy patients (age, 67±11 years; 7 female) with VT and structurally abnormal ventricle(s) were prospectively enrolled. Conventional mapping was performed in sinus rhythm in all, and a high-density Pentaray mapping catheter was used in the endocardium (n=35) and epicardially. LAVAs were recorded in 67 patients (95.7%; 95% confidence interval, 89.2-98.9). Catheter ablation was performed targeting LAVA with an irrigated-tip catheter placed endocardially via a transseptal or retrograde aortic approach or epicardially via the subxiphoid approach. LAVAs were successfully abolished or dissociated in 47 of 67 patients (70.1%; 95% confidence interval, 58.7-80.1). In multivariate analysis, LAVA elimination was independently associated with a reduction in recurrent VT or death (hazard ratio, 0.49; 95% confidence interval, 0.26-0.95; P=0.035) during long-term follow-up (median, 22 months). LAVAs can be identified in most patients with scar-related VT. Elimination of LAVAs is feasible and safe and is associated with superior survival free from recurrent VT.
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Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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