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[Serum cystatin C in haemodialysed patients]

P Pontuch1, A Lehotská, V Parrák

  • 1IV. interná klinika Lekárskej fakulty UK, Nemocnica sv. Cyrila a Metoda, Bratislava, Slovenská republika.

Vnitrni Lekarstvi
|January 8, 2005
PubMed

Insights

Serum Cystatin C (CyC) increases after hemodialysis due to its non-dialyzability and hemoconcentration. Unlike creatinine, serum CyC reflects residual renal function post-hemodialysis.

Area of Science:

  • Nephrology
  • Biochemistry
  • Clinical Chemistry

Context:

  • Cystatin C (CyC) is a protein filtered by glomeruli and reabsorbed by tubules.
  • Chronic kidney disease patients undergo hemodialysis, impacting various biomarkers.
  • Low-flux membranes are commonly used in hemodialysis.

Purpose:

  • To investigate serum CyC concentration changes during two low-flux hemodialysis sessions.
  • To examine the relationship between serum CyC and creatinine levels before and after hemodialysis.

Summary:

  • Serum CyC significantly correlated with creatinine before hemodialysis.
  • Serum CyC levels increased post-hemodialysis (HD-I and HD-II), while creatinine decreased.
  • The increase in serum CyC was linked to its non-dialyzability and hemoconcentration, with a correlation to albumin levels.

Impact:

  • Serum CyC serves as a valuable marker for residual renal function, even after hemodialysis.
  • Findings highlight the differential behavior of CyC and creatinine during hemodialysis.
  • This study aids in understanding biomarker dynamics in patients undergoing renal replacement therapy.
Abstract

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