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  • Title: Hyperuricemia predicts adverse clinical outcomes after cardiac resynchronization therapy.
    Author: Perge P, Boros AM, Zima E, Gellér L, Merkely B, Széplaki G.
    Journal: Scand Cardiovasc J; 2018 Oct; 52(5):250-255. PubMed ID: 30714413.
    Abstract:
    OBJECTIVES: Changes in the levels of serum creatinine and N-terminal of prohormone brain natriuretic peptide (NT-proBNP) are useful risk markers after cardiac resynchronization therapy (CRT). The diagnostic value of changes in serum uric acid levels has been established in chronic heart failure, but no data are available on the prognostic value of hyperuricemia in a CRT population. DESIGN: We measured markers of renal function [creatinine, blood urea nitrogen (BUN) and uric acid] and NT-proBNP levels of 129 heart failure patients undergoing CRT in a prospective, observational study. The 5-year all-cause mortality and the 6-month clinical response (≥ 15% increase in the left ventricular ejection fraction) were considered as study end points. RESULTS: In multivariable analyses, the uric acid was found to be a statistically significant predictor of the outcome. Uric acid levels exceeding 386 mmol/L before CRT increased the chances of mortality [n = 55, hazard ratio = 2.39 (1.30-4.39), p < 0.01] and poor clinical response [n = 37, odds ratio = 2.89 (1.22-6.87), p = 0.01] independently of serum NT-proBNP and other factors. CONCLUSIONS: Elevated uric acid concentrations in patients with CRT are associated with an increased risk of mortality and poor clinical response independently of the NT-proBNP levels and other relevant clinical factors.
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