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Assessment of Vascular Function in Patients With Chronic Kidney Disease
08:50

Assessment of Vascular Function in Patients With Chronic Kidney Disease

Published on: June 16, 2014

Mineral metabolism and vascular damage in children on dialysis

Rukshana C Shroff1, Ann E Donald, Melanie P Hiorns

  • 1Department of Nephrourology, Great Ormond Street Hospital and Institute of Child Health, London, United Kingdom. ShrofR@gosh.nhs.uk

Journal of the American Society of Nephrology : JASN
|October 19, 2007
PubMed

Insights

In children with chronic kidney disease on dialysis, high intact parathyroid hormone (iPTH) levels are linked to vascular damage. Managing iPTH and vitamin D is crucial for reducing cardiovascular risk in pediatric patients.

Area of Science:

  • Pediatric Nephrology
  • Cardiovascular Health
  • Mineral and Bone Disorder

Background:

  • Cardiovascular disease (CVD) is a major cause of mortality in pediatric chronic kidney disease (CKD).
  • Determinants of vascular damage in children with CKD are not well understood.
  • Vascular complications in CKD patients on dialysis are a significant concern.

Purpose of the Study:

  • To investigate the association between intact parathyroid hormone (iPTH) levels and vascular structure/function in children undergoing dialysis.
  • To explore the impact of iPTH management and vitamin D on vascular damage in pediatric dialysis patients.
  • To identify key factors contributing to cardiovascular risk in this population.

Main Methods:

  • Study included 85 children (ages 5-18 years) on dialysis for at least 6 months.
  • Vascular measures assessed included carotid intima-media thickness and pulse-wave velocity.
  • Correlations analyzed between vascular parameters, serum phosphorus, iPTH levels, vitamin D, and calcium intake.

Main Results:

  • Dialysis patients exhibited increased carotid intima-media thickness and pulse-wave velocity compared to controls.
  • Vascular measures correlated positively with serum phosphorus and iPTH levels.
  • Elevated iPTH levels (>2x upper limit of normal) were associated with greater vascular damage and cardiac calcification.
  • Vitamin D dosage showed a dose-dependent correlation with vascular measures.

Conclusions:

  • Elevated intact parathyroid hormone (iPTH) levels are significantly associated with vascular damage and calcification in children on dialysis.
  • Vitamin D dosage is also a key factor influencing vascular health in these pediatric patients.
  • Effective management of mineral and bone disorders, including iPTH and vitamin D, is essential for mitigating cardiovascular risk in children with CKD.

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