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Renal replacement therapy: a practical update.

George Alvarez1, Carla Chrusch2, Terry Hulme2

  • 1Department of Critical Care Medicine, University of Calgary, South Health Campus Intensive Care Unit, 4448 Front Street SE, Calgary, AB, T3M 1M4, Canada. George.Alvarez@ahs.ca.

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Summary
This summary is machine-generated.

Severe acute kidney injury (AKI) in critically ill patients may require renal replacement therapy (RRT). Continuous RRT (CRRT) may improve kidney recovery, and regional citrate anticoagulation is recommended for CRRT.

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Area of Science:

  • Nephrology
  • Critical Care Medicine

Background:

  • Acute kidney injury (AKI) is a sudden decline in kidney function, often necessitating renal replacement therapy (RRT) in 5-10% of critically ill patients.
  • RRT can be intermittent hemodialysis or continuous renal replacement therapy (CRRT).

Purpose of the Study:

  • To review the use of RRT in severe AKI.
  • To discuss CRRT modes, dosing, and anticoagulation strategies.

Main Methods:

  • Literature review of RRT in severe AKI.
  • Analysis of CRRT efficacy, dosing, and anticoagulation.

Main Results:

  • No significant difference in mortality between low and high RRT dosing (< 25 mL·kg-1·hr-1 vs > 40 mL·kg-1·hr-1).
  • CRRT may offer benefits in renal recovery and dialysis independence compared to intermittent hemodialysis.
  • Regional citrate anticoagulation is the preferred method for CRRT in most critically ill patients.

Conclusions:

  • CRRT is a viable option for severe AKI, with potential advantages for kidney recovery.
  • Optimal RRT dosing does not appear to impact mortality.
  • Regional citrate anticoagulation is recommended for CRRT management.