Predictive Value of Hyperuricemia in Cardiac Patients with Post-Contrast Acute Kidney Injury (PC-AKI) and Different

Angshu Cai1, Tian Zhou2

  • 1Queen Mary School, Nanchang University, Nanchang 330031, China.

Insights

Hyperuricemia increases the risk of post-contrast acute kidney injury (PC-AKI). This association is stronger in patients with normal kidney function, suggesting urate-lowering therapy could prevent PC-AKI.

Area of Science:

  • Nephrology
  • Cardiology
  • Radiology

Background:

  • The relationship between uric acid levels and post-contrast acute kidney injury (PC-AKI) is debated.
  • It is unclear if hyperuricemia predicts PC-AKI in patients with varying baseline kidney function.

Purpose of the Study:

  • To determine if hyperuricemia is an independent risk factor for PC-AKI.
  • To investigate the association between hyperuricemia and baseline renal function.

Main Methods:

  • A meta-analysis of studies published in English and Chinese databases (PubMed, Embase, Cochrane Library, WAN FANG) up to January 2022.
  • Included 15 studies with a total of 11,892 patients.

Main Results:

  • Hyperuricemia was linked to a significantly higher incidence of PC-AKI (20.62% vs. 13.05%).
  • Hyperuricemia increased the risk of PC-AKI (OR: 2.48), mortality (OR: 2.33), and renal replacement therapy (OR: 8.69).
  • The relative risk of PC-AKI in hyperuricemia patients was lower in those with pre-existing renal dysfunction.

Conclusions:

  • Hyperuricemia is significantly associated with PC-AKI incidence.
  • The impact of serum uric acid on PC-AKI is more pronounced in patients with normal renal function.
  • Findings support individualized PC-AKI prevention strategies using urate-lowering therapy.
Abstract

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