Serum Uric Acid and Outcome after Acute Ischemic Stroke: PREMIER Study

Autor: Alma Ramos-Moreno, José Luis Ruiz-Sandoval, Luis Manuel Murillo-Bonilla, Diego R. Orozco-Valera, Ana Ochoa-Guzmán, Carlos Cantú-Brito, Antonio Arauz, Carolina León-Jiménez, Jorge Villarreal-Careaga, Fernando Barinagarrementeria, Erwin Chiquete
Rok vydání: 2013
Předmět:
Zdroj: Cerebrovascular Diseases. 35:168-174
ISSN: 1421-9786
1015-9770
Popis: Background: Current evidence shows that uric acid is a potent antioxidant whose serum concentration increases rapidly after acute ischemic stroke (AIS). Nevertheless, the re-lationship between serum uric acid (SUA) levels and AIS outcome remains debatable. We aimed to describe the prognostic significance of SUA in AIS. Methods: We studied 463 patients (52% men, mean age 68 years, 13% with glomerular filtration rate Results: Mean SUA concentration at hospital arrival was 6.1 ± 3.7 mg/dl (362.8 ± 220.0 μmol/l). Compared with cases with higher SUA levels at hospital admission, patients with ≤4.5 mg/dl (≤267.7 μmol/l; the lowest tertile of the sample) had more cases of a very good 30-day outcome (30.5 vs. 18.9%, respectively; p = 0.004). SUA was not associated with mortality or functional dependence (mRS >2) at 30 days, or with any outcome measure at 3, 6 or 12 months poststroke. After adjustment for age, gender, stroke type and severity (NIHSS Conclusions: A low SUA concentration is modestly associated with a very good short-term outcome. Our findings support the hypothesis that SUA is more a marker of the magnitude of the cerebral infarction than an independent predictor of stroke outcome.
Databáze: OpenAIRE