Electrophysiological characteristics and outcome in patients with idiopathic right ventricular arrhythmia compared with arrhythmogenic right ventricular dysplasia.
Heart
; 87(1): 41-7, 2002 Jan.
Article
em En
| MEDLINE
| ID: mdl-11751663
ABSTRACT
BACKGROUND:
Idiopathic right ventricular arrhythmias (IRVA) are responsive to medical and ablative treatment and have a benign prognosis. Arrhythmias caused by right ventricular dysplasia (ARVD) are refractory to treatment and may cause sudden death. It is difficult to distinguish between these two types of arrhythmia.OBJECTIVE:
To differentiate patients with IRVA and ARVD by a conventional electrophysiological study.METHODS:
56 patients with a right ventricular arrhythmia were studied. They had no history or signs of any cardiac disease other than right ventricular dysplasia. They were classified as having IRVA (n = 41) or ARVD (n = 15) on the basis of family history, ECG characteristics, and various imaging techniques. They were further investigated by standard diagnostic electrophysiology.RESULTS:
The two groups were clearly distinguished by the electrophysiological study in the following ways inducibility of ventricular tachycardia by programmed electrical stimulation with ventricular extrastimuli (IRVA 3% v ARVD 93%, p < 0.0001); presence of more than one ECG morphology during tachycardia (IRVA 0% v ARVD 73%, p < 0.0001); and fragmented diastolic potentials during ventricular arrhythmia (IRVA 0% v ARVD 93%, p < 0.0001). Data from the clinical follow up in these patients supported the diagnosis derived from the electrophysiological study.CONCLUSIONS:
Patients with IRVA or ARVD can be distinguished by specific electrophysiological criteria. A diagnosis of ARVD can be made reliably on the basis of clinical presentation, imaging techniques, and an electrophysiological study.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Arritmias Cardíacas
Tipo de estudo:
Diagnostic_studies
/
Observational_studies
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Prognostic_studies
Limite:
Adolescent
/
Adult
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Aged
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Humans
/
Middle aged
Idioma:
En
Revista:
Heart
Assunto da revista:
CARDIOLOGIA
Ano de publicação:
2002
Tipo de documento:
Article
País de afiliação:
Itália