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Single-channel Analysis and Calcium Imaging in the Podocytes of the Freshly Isolated Glomeruli
12:19

Single-channel Analysis and Calcium Imaging in the Podocytes of the Freshly Isolated Glomeruli

Published on: June 27, 2015

Dialysate calcium individualisation: a pending issue.

Francisco Maduell1, Néstor Rodríguez, Marta Arias-Guillén

  • 1Servicio de Nefrología y Trasplante Renal, Hospital Clínic, Barcelona, Spain. fmaduell@clinic.ub.es

Nefrologia : Publicacion Oficial De La Sociedad Espanola Nefrologia
|September 28, 2012
PubMed
Summary
This summary is machine-generated.

Individualizing dialysate calcium is crucial for managing cardiovascular risk in dialysis patients. Adjusting dialysate calcium concentrations based on pre- and post-dialysis calcium levels optimizes patient outcomes and mineral metabolism control.

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A Semi-Automated and Reproducible Biological-Based Method to Quantify Calcium Deposition In Vitro

Published on: June 2, 2022

Area of Science:

  • Nephrology
  • Cardiovascular Medicine
  • Mineral Metabolism

Background:

  • Calcium plays a vital role in dialysis patients, significantly impacting cardiovascular risk.
  • Recent shifts in phosphate binder and calcimimetic use have altered target pre-dialysis serum calcium levels.
  • Accurate assessment of intradialytic calcium changes is essential for personalized dialysis prescriptions.

Purpose of the Study:

  • To evaluate intradialytic calcium (Ca) shifts with varying dialysate calcium concentrations.
  • To determine the implications of these shifts on calcium-phosphate metabolism control.
  • To inform individualized dialysis prescription strategies.

Main Methods:

  • A study involving 98 hemodialysis patients (68 male, 30 female) with a mean age of 59.3 years.
  • Patients underwent two hemodialysis sessions using dialysate calcium concentrations of 2.5 mEq/l (Ca25) and 3.0 mEq/l (Ca30).
  • Pre- and post-dialysis calcium, phosphorus, and parathyroid hormone (PTH) levels were measured, with patients categorized by pre-dialysis calcium levels.

Main Results:

  • No significant differences in pre-dialysis calcium, phosphorus, or PTH were observed between Ca25 and Ca30 groups.
  • The Ca30 dialysate significantly increased post-dialysis calcium and decreased PTH, while Ca25 showed no significant changes in post-dialysis calcium or PTH.
  • With Ca25, intradialytic calcium increased in patients with pre-dialysis calcium <9.0 mg/dl and decreased in those >9.5 mg/dl, whereas Ca30 increased calcium in all subgroups.

Conclusions:

  • Dialysate calcium prescription requires individualization based on pre- and post-dialysis calcium levels.
  • The goal is to achieve desired changes (increase, decrease, or no change) in post-dialysis calcium.
  • Personalized adjustments are key to effectively managing the calcium-phosphate metabolism in dialysis patients.