Increased serum levels of S100B are related to the severity of cardiac dysfunction, renal insufficiency and major cardiac events in patients with chronic heart failure.

OBJECTIVE: To investigate the correlations between S100B and the severity of cardiac dysfunction, renal insufficiency (RI) and prognosis in chronic heart failure (CHF).
METHOD: Serum levels of S100B, TNF-α, high sensitivity CRP and NT-proBNP were determined in CHF patients with (n=96) and without RI (n=146). Patients with RI only (n=62) and control subjects (n=64) served for comparison. Patients were followed up for one year.
RESULTS: S100B levels were higher in CHF patients with a further elevation in those with RI (P<0.01). Serum S100B levels correlated with left ventricular ejection fraction, left ventricular end-diastolic volume and NT-proBNP in CHF patients, and eGFR in patients with RI (all P<0.05). Increased S100B levels were associated with major cardiac events (MCE), and were independently associated with the presence of CHF (all P<0.05).
CONCLUSION: Increased serum S100B levels were associated with the severity of cardiac dysfunction, RI and an adverse prognosis in CHF patients. It represents an independent risk factor for CHF.