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Continuous Renal Replacement Therapy: Who, When, Why, and How.

Srijan Tandukar1, Paul M Palevsky2

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Summary

Continuous renal replacement therapy (CRRT) offers vital kidney support for unstable, critically ill patients with acute kidney injury. This review compares CRRT techniques, indications, dosing, and management strategies.

Keywords:
acute kidney injurycontinuous renal replacement therapydialysishemodialysishemofiltration

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Area of Science:

  • Nephrology
  • Critical Care Medicine
  • Intensive Care Unit Management

Background:

  • Continuous renal replacement therapy (CRRT) is essential for acute kidney injury in critically ill patients.
  • Hemodynamic instability is a key factor necessitating CRRT.
  • CRRT encompasses various solute clearance techniques: hemofiltration (convection), hemodialysis (diffusion), and hemodiafiltration (combined).

Purpose of the Study:

  • To compare CRRT with alternative renal support modalities.
  • To review the indications for initiating renal replacement therapy.
  • To discuss dosing and technical aspects of CRRT management.

Main Methods:

  • Comparative analysis of CRRT and other renal support methods.
  • Review of clinical guidelines and evidence for CRRT initiation.
  • Synthesis of technical considerations for CRRT administration.

Main Results:

  • CRRT provides essential renal support, especially for hemodynamically unstable patients.
  • Different CRRT techniques offer varied solute clearance mechanisms.
  • Established indications, dosing protocols, and management strategies guide CRRT use.

Conclusions:

  • CRRT is a cornerstone therapy for acute kidney injury in critical care.
  • Understanding CRRT modalities and management is crucial for optimal patient outcomes.
  • This review provides a comprehensive overview for clinicians managing CRRT.