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Titolo:
SUCCESSFUL RADIO-FREQUENCY CATHETER ABLATION OF RIGHT-SIDED ACCESSORYPATHWAYS DURING SUSTAINED ATRIAL-FIBRILLATION
Autore:
HINDRICKS G; KOTTKAMP H; CHEN X; WILLEMS S; BREITHARDT G; BORGGREFE M;
Indirizzi:
UNIV KLIN MUNSTER D-48129 MUNSTER GERMANY HOSP WESTFAL WILHEMS UNIV MUNSTER,DEPT CARDIOL & ANGIOL D-48129 MUNSTER GERMANY HOSP WESTFAL WILHEMS UNIV MUNSTER,INST ARTERIOSCLEROSIS RES D-48129 MUNSTER GERMANY
Titolo Testata:
European heart journal
fascicolo: 7, volume: 16, anno: 1995,
pagine: 967 - 970
SICI:
0195-668X(1995)16:7<967:SRCAOR>2.0.ZU;2-6
Fonte:
ISI
Lingua:
ENG
Soggetto:
RADIOFREQUENCY CURRENT;
Keywords:
WOLFF-PARKINSON-WHITE SYNDROME; RADIOFREQUENCY CATHETER ABLATION; ATRIAL FIBRILLATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
9
Recensione:
Indirizzi per estratti:
Citazione:
G. Hindricks et al., "SUCCESSFUL RADIO-FREQUENCY CATHETER ABLATION OF RIGHT-SIDED ACCESSORYPATHWAYS DURING SUSTAINED ATRIAL-FIBRILLATION", European heart journal, 16(7), 1995, pp. 967-970

Abstract

Up to now there have been no descriptions in the literature of endocardial catheter mapping and successful radiofrequency catheter ablationof the right sided accessory pathway during sustained atrial fibrillation. We attempted ablation of a right posterolateral and a right lateral accessory pathway during sustained atrial fibrillation with rapid anterograde conduction over the accessory pathway in two patients withWolff-Parkinson-White syndrome. In both patients (aged 47 and 52 years), sustained atrial fibrillation occurred during the electrophysiological study to access accessory pathway conduction properties. The meanventricular rate during atrial fibrillation was 180 and 170 beats . min(-1), respectively. Both patients were successfully ablated with a single radiofrequency impulse. At the successful ablation sites, a potential of the accessory pathway was consistently recorded preceding theonset of preexcitation in the surface electrogram, by 25 ms in patient 1 and 30 ms in patient 2. The unipolar electrogram recorded from theablation catheter showed a QS morphology and the accessory pathway potential preceded the intrinsic deflection by 10 ms in both patients. Onset of the ventricular electrogram (patient 1: -20 ms; patient 2: -15ms) and its activation time (patient 1: -15 ms; patient 2: +5 ms) in relation to the onset of preexcitation in the surface electrocardiogram also indicated the close proximity of the ablation catheter to the accessory pathway. Preexcitation disappeared within 2 s after energy application in both patients. Thus, radiofrequency catheter ablation of right sided accessory pathways during sustained atrial fibrillation iffeasible and may obviate the need for medical or electrical cardioversion. Appropriate target sites can be identified by the presence of anaccessory pathway potential, early onset and activation of the local ventricular electrogram, and the QS morphology of the unipolar electrogram.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/10/20 alle ore 08:28:16