[Mapping and ablation of malignant ventricular arrhythmias]. / Cartographie et ablation des arythmies ventriculaires malignes.
Arch Mal Coeur Vaiss
; 98 Spec No 5: 34-41, 2005 Dec.
Article
em Fr
| MEDLINE
| ID: mdl-16433241
Endocavitary investigations showed that the ventricular extrasystoles originated in the common ventricular myocardium (pulmonary infundibulum) in only 9 cases whereas the majority arose from the Parkinje system either on the anterior wall of the right ventricle or in septal region of the left ventricle. The extrasystoles arising from the Parkinje system and pulmonary infundibulum differed in their duration and polymorphism (128 +/- 18 ms vs 145 +/- 13 ms, p = 0.05; 3.3 +/- 2.7 morphologies vs 1.1 +/- 0.4, p < 0.001, respectively). During the extrasystoles, the local Pukinje potential preceded the ventricular activation by variable intervals, some of which were very long, up to 150 ms. Seven applications of radiofrequency were delivered on average per patient on the most distal part of the Purkinje system leading to ablation of the specific activation. The clinical results were spectacular: 88% of patients had no further episodes of ventricular fibrillation as demonstrated by analysis of the defibrillator with an average follow-up period of more than 34 months.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ablação por Cateter
/
Disfunção Ventricular
/
Neoplasias Cardíacas
Tipo de estudo:
Diagnostic_studies
Limite:
Humans
Idioma:
Fr
Revista:
Arch Mal Coeur Vaiss
Ano de publicação:
2005
Tipo de documento:
Article