Prognostic factors of mid-term clinical outcome in congestive heart failure patients discharged after acute decompensation
Archives of Medical Science, 07/11/2012
Feola M et al. - In predicting mid-term clinical prognosis in congestive heart failure (CHF) patients discharged after acute decompensation, BNP at discharge 250 pg/ml added with plasma creatinine > 1.5 mg/dl are strong adverse predictors.Methods
- All subjects with NYHA class II-IV were enrolled at hospital discharge.
- NYHA class, BNP, water body composition, non-invasive cardiac output and echocardiogram were analysed.
- Death, cardiac transplantation and hospital readmission for CHF were scheduled.
- Two-hundred and thirty-seven (64.5% males, age 71.1 ±10.1) patients were discharged after obtaining normal hydration; left ventricular ejection fraction (LVEF) was 43.2 ±16.2%, cardiac output was 3.8 ±1.1 l/min and BNP at discharge resulted 401.3 ±501.7 pg/ml.
- During the 14-month follow-up 15 patients (6.3%) died, 1 (0.4%) underwent cardiac transplantation and 18 (7.6%) were readmitted for CHF (event group); in 203 (85.6%) no events were observed (no-event group).
- Higher NYHA class (2.1 ±0.7 vs. 1.9 ±0.4, p = 0.01), BNP at discharge (750.2 ±527.3 pg/ml vs. 340.7 ±474.3 pg/ml, p = 0.002) and impaired LVEF (33.7 ±15.7% vs. 44.5 ±15.8%, p = 0.0001) and creatinine (1.7 ±0.6 vs. 1.2 ±0.8 mg/dl, p = 0.004) were noticed in the event group.
- At multivariate Cox analysis LVEF (p = 0.0009), plasma creatinine (p = 0.006) and BNP at discharge (p = 0.001) were associated with adverse mid-term outcome.
- Kaplan-Meier survival curves demonstrated that adding cut-off points for creatinine 1.5 mg/dl and discharged BNP of 250 pg/ml discriminated significantly prognosis (p = 0.0001; log rank 21.09).