Mode of death and hospitalization from the Second Follow-up Serial Infusions of Nesiritide (FUSION II) trial and comparison of clinical events committee adjudicated versus investigator reported outcomes.
The aim of this study was to evaluate the mode of death and hospitalizations in advanced heart failure (HF) patients with renal dysfunction and to examine the rate of concordance between events reported by the clinical events committee and site investigators (using case report forms) in the Second Follow-Up Serial Infusions of Nesiritide (FUSION II) trial. Little is known about the cause of death and hospitalization in patients with advanced HF. FUSION II was a randomized, double-blind, placebo-controlled trial evaluating outpatient nesiritide infusions versus placebo, with 911 patients with advanced HF (New York Heart Association class III or IV) and renal dysfunction enrolled. There were 151 deaths and 1,041 hospitalizations at 24 weeks. The clinical events committee classified events as cardiac, renal, cardiorenal, other or noncardiovascular, or unknown. Kappa statistics and McNemar tests were used to assess agreement (overall and by individual modes of death and hospitalization indications). In conclusion, the most common cause of death or hospitalization was cardiac related, with 70% of deaths and 60% of hospitalizations due to cardiac causes. There was 74% agreement (26% disagreement) on cardiac cause of death (κ = 0.40, McNemar p = 0.001) and 75% agreement (25% disagreement) between the investigators and the clinical events committee on cardiac classification for hospitalization (κ = 0.49, McNemar p <0.0001).
O'Connor, CM; Fiuzat, M; Lindenfeld, J; Miller, A; Lombardi, C; Carson, P; Shaw, LK; Wang, L-J; Connolly, P; Mills, R; Yancy, C; Mahaffey, K
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