Vascular Calcification as a Novel Risk Factor for Kidney Function Deterioration in the Nonelderly

Author:

Park Samel1,Cho Nam‐Jun1,Heo Nam Hun2,Rhee Eun‐Jung3,Gil Hyowook1,Lee Eun Young14ORCID

Affiliation:

1. Department of Internal Medicine Soonchunhyang University Cheonan Hospital Cheonan Korea

2. Department of Biostatistics Soonchunhyang University Cheonan Hospital Cheonan Korea

3. Department of Internal Medicine Kangbuk Samsung Hospital Seoul Korea

4. Institute of Tissue Regeneration College of Medicine Soonchunhyang University Cheonan Korea

Abstract

Background The relationship between vascular calcification and chronic kidney disease is well known. However, whether vascular calcification affects renal function deterioration remains unclear. We investigated whether kidney function deteriorated more rapidly in individuals with higher vascular calcification indicated by the coronary artery calcium score (CACS). Methods and Results Individuals with a normal estimated glomerular filtration rate (>60 mL/min per 1.73 m 2 ) who underwent cardiac computed tomography in our institution (a tertiary teaching hospital in Cheonan, Korea) from January 2010 to July 2012 were retrospectively reviewed. All participants were aged 20 to 65 years. Among 739 patients, 447, 175, and 117 had CACSs of 0, 1 to 99, and ≥100 units, respectively. The participants were followed for 7.8 (interquartile range, 5.5–8.8) years. The adjusted annual estimated glomerular filtration rates declined more rapidly in patients in the CACS ≥100 group compared with those in the CACS 0 group (adjusted‐β, −0.40; 95% CI, −0.80 to −0.03) when estimated using a linear mixed model. The adjusted hazard ratio in the CACS ≥100 group for Kidney Disease: Improving Global Outcomes criteria (a drop in estimated glomerular filtration rate category accompanied by a 25% or greater drop in estimated glomerular filtration rate) was 2.52 (1.13–5.61). After propensity score matching, more prevalent renal outcomes (13.2%) were observed in patients with a CACS of ≥100 compared with those with a CACS of 0 (1.9%), with statistical significance ( P =0.004). Conclusions Our results showed that renal function declined more rapidly in patients with higher CACSs, suggesting that vascular calcification might be associated with chronic kidney disease progression.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Cardiology and Cardiovascular Medicine

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