In patients with ICDs, NYHA class III (RR 4.8, p=0.001) and a history of congestive heart failure (RR 3.6, p=0.01) were the strongest predictors of total mortality over 27 months.
Cohort (n=200)
Effect estimate: RR 4.8
p-value: p=0.001
UNLABELLED: This study determined the impact of clinical characteristics on shock occurrence and survival in patients with implantable cardioverter-defibrillator (ICD). METHODS AND RESULTS: During a follow-up of 27 +/- 18 months, the actuarial incidence of appropriate shocks in 200 consecutive patients was 18, 36 and 72% at 1, 3, and 5 years, respectively. Coronary artery disease was the only significant predictor for shock occurrence (relative risk 1.32, p = 0.03). The actuarial incidence of total mortality was 10, 17 and 33% at 1, 3, and 5 years, respectively. The most powerful predictors for total mortality were: New York Heart Association functional class (NYHA) III (relative risk 4.8, p = 0.001) and a history of congestive cardiac failure (relative risk 3.6, p = 0.01). CONCLUSION: During long-term follow-up, the majority of patients receive appropriate shocks. No strong predictors for shock occurrence can be identified from the data analyzed. A history of congestive cardiac failure and the NYHA III are the most powerful predictors for total mortality. These clinical factors may provide valuable criteria to identify patients who will benefit from the implantation of ICD.
Anvari et al. (Thu,) conducted a cohort in Implantable cardioverter-defibrillator (ICD) (n=200). Clinical characteristics (NYHA class, heart failure history) was evaluated on Total mortality (RR 4.8, p=0.001). In patients with ICDs, NYHA class III (RR 4.8, p=0.001) and a history of congestive heart failure (RR 3.6, p=0.01) were the strongest predictors of total mortality over 27 months.