Abstract WP206: Brain Natriuretic Peptide Should Be A Predictive Marker Of Long-term Mortality In Ischemic Stroke Survivors

Background and Purpose We investigated whether brain natriuretic peptide (BNP) can serve as a biological marker of long-term mortality in ischemic stroke survivors. Methods We prospectively enrolled consecutive patients with ischemic stroke within 24 hours of onset from April 2007 to December 2010 and measured plasma BNP upon admission. Survivors were followed up to 12 month after stroke onset. Patients were divided into two groups: the deceased group and the survival group. The factors associated with long-term mortality were investigated by multiple logistic regression analysis. Results A total of 736 patients who were alive at hospital discharge were included (mean age, 72.8 years; 439 males). Death was observed in 130 (17.7%) patients. The median (interquartile range: IQR) of age (81(74-86) years for the deceased group vs. 72 (64-79) years for the survival group, P 75 years (odds ratio [OR], 2.89; 95%CI, 1.80-4.65, P=0.0001), hemidialysis (OR, 6.59; 95%CI, 2.47-17.59, P=0.0002), mRS score >3 at discharge (OR, 4.39; 95%CI, 2.77-6.97, P 100.0 pg/ml (OR, 3.98; 95%CI, 2.35-6.72, P 200.0pg/ml (OR, 2.45; 95%CI, 1.22-4.90, P=0.0114)] but also non-cardioembolism [BNP >50.0pg/ml (OR, 4.01; 95%CI, 2.15-7.48, P=0.0001)]. Thus, the mortality rate according to the BNP level was as follows: 6% of patients with Conclusions BNP level upon admission can predict long-term mortality in ischemic stroke survivors.