Endocrinol Metab.  2020 Mar;35(1):122-131. 10.3803/EnM.2020.35.1.122.

Associations of Perirenal Fat Thickness with Renal and Systemic Calcified Atherosclerosis

Affiliations
  • 1Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea. bokyungkoomd@gmail.com
  • 2Department of Internal Medicine, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea.
  • 3Department of Family Medicine and Public Health, University of California San Diego, La Jolla, CA, USA.

Abstract

BACKGROUND
We investigated associations between perirenal fat thickness and atherosclerotic calcification in six different vascular beds.
METHODS
Using a community-based cohort (n=3,919), perirenal fat thickness was estimated from computed tomography scans. It was classified as Q1 (the lowest quartile) to Q4 (the highest quartile) in each sex. Calcification in the carotid arteries, coronary arteries, thoracic aorta, abdominal aorta, iliac arteries, and renal arteries was evaluated.
RESULTS
Perirenal fat thickness was associated with older age (P<0.01) and a higher prevalence of obesity, hypertension, and dyslipidemia (P<0.01 for all). Perirenal fat thickness was independently associated with renal arterial calcification even after adjustment for age, sex, body mass index, hypertension, dyslipidemia, smoking history, and family history of heart diseases in first-degree relatives (odds ratio [OR] per quartile of perirenal fat thickness, 1.25; 95% confidence interval [CI], 1.09 to 1.44). Compared to Q1, the odds of renal arterial calcification in Q4 was about two times higher (OR, 2.05; 95% CI, 1.29 to 3.25). After adjustment for renal arterial calcification and atherosclerotic risk factors, the only other vascular bed where perirenal fat thickness showed a significant association with calcification was the abdominal aorta (OR, 1.11; 95% CI, 1.00 to 1.23; P=0.045).
CONCLUSION
Perirenal fat thickness was independently associated with vascular calcification in the renal artery and abdominal aorta.

Keyword

Atherosclerosis; Vascular calcification; Obesity; Renal artery; Aorta, abdominal

MeSH Terms

Aorta, Abdominal
Aorta, Thoracic
Atherosclerosis*
Body Mass Index
Carotid Arteries
Cohort Studies
Coronary Vessels
Dyslipidemias
Heart Diseases
Humans
Hypertension
Iliac Artery
Obesity
Prevalence
Renal Artery
Risk Factors
Smoke
Smoking
Vascular Calcification
Smoke
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