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Association of hyperuricemia with valvular heart disease and the modifying effect of obesity

Seung Min Jung1, Sang-Hyuk Jung2,3, Su-Nam Lee4

  • 1Division of Rheumatology, Department of Internal Medicine, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.

Insights

Elevated serum uric acid (SUA) levels, or hyperuricemia, are linked to increased valvular heart disease (VHD) risk. This association was observed across a large cohort, with very high SUA levels posing the greatest risk for VHD development.

Area of Science:

  • Cardiology
  • Metabolic Health
  • Epidemiology

Background:

  • Hyperuricemia is associated with cardiovascular disease, but its link to incident valvular heart disease (VHD) is unclear.
  • Understanding this relationship is crucial for cardiovascular risk stratification.

Purpose of the Study:

  • To investigate the association between serum uric acid (SUA) levels and incident VHD.
  • To explore the influence of weight management and obesity on this association.

Main Methods:

  • Utilized UK Biobank cohort data from 462,705 participants.
  • Categorized participants by SUA levels: normal (<6.0 mg/dL), high (6.0-8.9 mg/dL), and very high (≥9.0 mg/dL).
  • Assessed VHD risk based on SUA, metabolic profiles, BMI, and waist circumference over a 12.3-year follow-up.

Main Results:

  • Significantly higher adjusted VHD risk observed with very high SUA (2.31x) and high SUA (1.25x) compared to normal SUA.
  • A dose-response relationship between SUA levels and VHD risk was evident, particularly with metabolic disorders.
  • Obesity's impact on VHD was more pronounced at lower SUA levels (<9.0 mg/dL).

Conclusions:

  • Hyperuricemia is significantly associated with an increased risk of incident valvular heart disease.
  • Elevated SUA levels may be relevant for VHD risk stratification.
  • Weight management's role in mitigating VHD risk in hyperuricemia warrants further investigation.
Abstract

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