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Assessment and significance of abdominal aortic calcification in chronic kidney disease

Shigeru Hanada1, Ryoichi Ando, Shotaro Naito

  • 1Department of Nephrology, Musashino Red Cross Hospital, Tokyo, Japan. s-hanada@umin.ac.jp

Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association
|January 12, 2010
PubMed

Insights

Abdominal aortic calcification is common in pre-dialysis chronic kidney disease (CKD) patients. Higher calcification levels predict cardiovascular events, suggesting CKD contributes to vascular calcification and impacts prognosis.

Area of Science:

  • Nephrology
  • Cardiology
  • Radiology

Background:

  • Abdominal aortic calcification (AAC) is a known predictor of cardiovascular mortality in dialysis patients.
  • Understanding AAC in pre-dialysis chronic kidney disease (CKD) is crucial but limited.
  • This study investigates AAC prevalence and its association with cardiovascular events in pre-dialysis CKD.

Purpose of the Study:

  • To assess the prevalence and extent of abdominal aortic calcification (AAC) in pre-dialysis CKD patients.
  • To identify predictors of AAC in this population.
  • To determine the association between AAC and incident cardiovascular events.

Main Methods:

  • A cohort study included 101 adult Japanese patients with pre-dialysis CKD stages 3-5.
  • Abdominal aortic calcification index (ACI) was measured using non-contrast computed tomography.
  • Patients were followed for a mean of 48 months to assess cardiovascular events.

Main Results:

  • 82% of patients exhibited AAC, with prevalence increasing with CKD stage (50% stage 3, 91% stage 5).
  • Older age, diabetes, and decreased estimated glomerular filtration rate (e-GFR) independently predicted AAC.
  • An ACI >= 20% and diabetes independently predicted de novo cardiovascular events in advanced CKD stages.

Conclusions:

  • Decreased e-GFR is associated with AAC presence and extent in pre-dialysis CKD.
  • High AAC levels are linked to increased cardiovascular event risk in pre-dialysis CKD stages 4 and 5.
  • Further research into CKD's role in vascular calcification may improve patient prognosis.
Abstract

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