International Heart Journal
Online ISSN : 1349-3299
Print ISSN : 1349-2365
ISSN-L : 1349-2365
Clinical Studies
The Association Between Serum Uric Acid and Mortality in Patients with Acute Coronary Syndrome After Percutaneous Coronary Intervention
Takuya NakahashiHayato TadaKenji SakataTaiji YoshidaYoshihiro TanakaAkihiro NomuraHidenobu TeraiYuki HoritaMasatoshi IkedaMasanobu NamuraMasayuki TakamuraMasa-aki Kawashiri
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2022 年 63 巻 3 号 p. 447-453

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This study aims to explore the associations between uric acid (UA) and long-term outcomes among patients with acute coronary syndrome (ACS). A total of 1068 consecutive patients with ACS who underwent percutaneous coronary intervention (PCI) were analyzed retrospectively. The patients were divided into 3 groups based on the levels of serum UA upon admission (bottom quintile, middle 3 quintiles, and top quintile). The primary endpoint was all-cause mortality. The patients in the higher UA groups were associated with younger age (71 ± 11 versus 68 ± 12 versus 67 ± 14 years; P < 0.05) and were more likely to be male (57.6 versus 76.9 versus 84.7%; P < 0.001). Furthermore, these patients had lower estimated glomerular filtration rates (83 ± 27 versus 74 ± 23 versus 59 ± 24 mL/minute/1.73 m2; P < 0.001) and lower left ventricular ejection fractions (58 ± 14 versus 57 ± 14 versus 53 ± 15%; P < 0.001). During the median 4-year follow-up, there were 158 incidents of all-cause death. Patients in the top quintile, followed by patients in the bottom quintile, had greater all-cause mortality compared with patients in the middle quintile (16.5 versus 11.4 versus 23.8%; P < 0.001). When the middle of the 3 quintiles was assigned as the reference group, the adjusted hazard ratios for all-cause mortality for the top and bottom quintiles were 1.72 (95% confidence interval [CI] 1.16-2.53, P < 0.05) and 1.57 (95% CI 1.03-2.36, P < 0.05), respectively. These results demonstrate that UA levels upon admission in patients with ACS who underwent PCI exhibited a 'J-shaped' association with all-cause mortality.

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© 2022 by the International Heart Journal Association
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