| Autor: |
Proclemer, A., Della Bella, P., Facchin, D., Fattore, L., Carbucicchio, C., Tondo, C., Lunati, M., Vecchi, M. R., Petz, E., Zecchin, M. |
| Zdroj: |
EP: Europace; 2001, Vol. 3 Issue 2, p132-135, 4p |
| Abstrakt: |
Aim This retrospective four-centre study assessed the current indications for dual-chamber implantable cardioverter defibrillators (ICDs) at implant and during a medium-term follow-up period in a group of patients treated by single-chamber ICD in the pre dual-chamber ICD era. Methods and Results The study population consisted of 153 consecutive patients (127 males, mean age 58±6 years) treated by single-chamber ICD for ventricular tachycardia and/or ventricular fibrillation. Definite indications for having a dual-chamber ICD included the presence of sinus node dysfunction and of second- or third-degree atrioventricular (AV) block, while possible indications were represented by paroxysmal atrial fibrillation or flutter and first-degree AV block. At implant, dual-chamber ICD would appear definitely indicated in 10·5% of cases, and possibly indicated in an additional 17·5% of cases. During 12±10 months follow-up, such percentages remained stable (11 and 19·5%, respectively). Inappropriate ICD intervention was documented in five of 13 patients (38%), with episodes of paroxysmal atrial fibrillation or flutter. Conclusion In this non-selected study population, a dual-chamber ICD would have potentially benefited approximately 30% of the patients. During medium-term follow-up, there was no progression towards increasing dual-chamber ICD indications. The 15% cumulative incidence of paroxysmal atrial tachyarrhythmias justifies the activation of dedicated detection algorithms. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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