Author + information
- J. Zarifis,
- K. Polymeropoulos,
- M. Bougiakli,
- P. Ioannidis and
- A. Stavrati
To elucidate the long-term prognosis of recipients of implantable cardioverter-defibrillator (ICD) for prevention of Sudden Cardiac Death (SCD).
We followed 311 ICD implanted patients (86.5% male), mean age 65.3 ± 12.2 years, 182 for secondary prevention, for 25±17 months.
Appropriate ICD intervention was demonstrated in 26 patients (20.1%) in primary prevention group and in 72 patients (39.5%) in secondary prevention group (OR 2.5, 95% CI 0.95-5.49, p= 0,090). Time to first appropriate intervention was 9.37±3.69 months. Inappropriate ICD intervention was observed in 15 (11.62%) patients in primary prevention group and in 16 (8.7%) patients in secondary prevention group (95% CI 0.16-1.0, p=0.05). History of ischemic cardiomyopathy (65 patients) is related to appropriate ICD intervention (95% CI 0.9-1.59, p= 0.055) with no statistical difference between groups. There were reported 17 deaths in primary prevention group and 27 deaths in secondary prevention group (p=0.011).
Appropriate ICD interventions are present in both primary and secondary prevention groups, with a minimal difference in the rates of secondary prevention group. The survival was higher in secondary prevention group, as anticipated.