The Uric Acid to High-Density Lipoprotein Cholesterol Ratio Is Associated with Left Ventricular Diastolic Function in

Ryotaro Yamamoto1, Yukihiro Fukuda1, Takafumi Kawaguchi1

  • 1Department of Cardiovascular Medicine, Hiroshima Prefectural Hospital.

PubMed

Insights

The uric acid-to-high-density lipoprotein cholesterol ratio is linked to impaired left ventricular diastolic function in patients without significant perfusion issues. This inflammatory marker may impact heart diastolic parameters, as shown by gated SPECT imaging.

Area of Science:

  • Cardiology
  • Biochemistry
  • Medical Imaging

Background:

  • The uric acid (UA) to high-density lipoprotein cholesterol (HDL-C) ratio is recognized as an inflammation marker.
  • The association between this UA-to-HDL-C ratio and left ventricular (LV) diastolic function is not well-established.
  • This study investigates the relationship between the UA-to-HDL-C ratio and LV diastolic parameters in patients without significant perfusion abnormalities.

Purpose of the Study:

  • To test the hypothesis that the UA-to-HDL-C ratio is associated with LV diastolic parameters.
  • To evaluate LV diastolic function using gated myocardial perfusion single-photon emission computed tomography (SPECT).
  • To identify potential associations in patients with preserved ejection fraction and no significant perfusion defects.

Main Methods:

  • Gated SPECT was used to derive LV diastolic parameters, including peak filling rate (PFR) and one-third mean filling rate (1/3 MFR).
  • Serum UA and plasma HDL-C levels were measured in 204 patients.
  • Multivariate linear regression analysis was performed to identify factors associated with diastolic parameters.

Main Results:

  • The UA-to-HDL-C ratio showed significant inverse associations with both PFR (r = -0.20; P = 0.005) and 1/3 MFR (r = -0.17; P = 0.018).
  • Multivariate analysis confirmed that the UA-to-HDL-C ratio was independently associated with PFR (β = -0.17; P = 0.023) and 1/3 MFR (β = -0.14; P = 0.047).
  • Age and LV volumes/mass were also significant independent predictors for diastolic parameters.

Conclusions:

  • The UA-to-HDL-C ratio is significantly associated with impaired LV diastolic function in patients without significant perfusion abnormalities.
  • This inflammatory marker may serve as a non-invasive indicator of subclinical diastolic dysfunction.
  • Gated SPECT is a valuable tool for assessing LV diastolic parameters in relation to metabolic markers.