Related Experiment Videos
Phosphorus kinetics during haemodialysis and haemofiltration
Proceedings of the European Dialysis and Transplant Association - European Renal Association. European Dialysis and Transplant Association - European Renal Association. Congress
|January 1, 1985
Summary
Patients undergoing hemodialysis can regulate phosphorus levels through efficient dialyzers. Despite phosphorus removal, plasma inorganic phosphorus (Pi) remains stable, indicating an independent body fluid regulation mechanism.
Area of Science:
- Nephrology
- Renal Physiology
- Biochemistry
Background:
- Phosphorus balance is crucial for patients with kidney disease undergoing hemodialysis.
- Plasma inorganic phosphorus (Pi) levels are influenced by excretion during dialysis and patient adherence.
Purpose of the Study:
- To investigate the relationship between phosphorus excretion, plasma Pi concentration, and dialyzer clearance.
- To understand the factors influencing plasma Pi concentration during hemodialysis and hemofiltration.
Main Methods:
- Analysis of phosphorus excretion during hemodialysis.
- Correlation studies between plasma Pi concentration and dialyzer Pi clearance.
- Observation of plasma Pi concentration time curves during dialysis procedures.
Main Results:
- Phosphorus excretion during hemodialysis is directly related to plasma Pi concentration and dialyzer clearance.
- Highly efficient dialyzers can aid in achieving a regulated phosphorus balance in disciplined patients.
- Plasma Pi concentration remains relatively stable, often near the normal range, despite significant phosphorus removal.
Conclusions:
- Plasma Pi concentration during hemodialysis is a result of passive diffusion and active mobilization from a readily exchangeable pool.
- The stability of plasma Pi suggests an intrinsic regulatory mechanism for phosphate in body fluids.
- This phosphate regulation appears to be independent of calcium homeostasis.