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Continuous Renal Replacement Therapy01:30

Continuous Renal Replacement Therapy

Continuous Renal Replacement Therapy, also known as CRRT, is a procedural treatment for acute kidney injury (AKI) that gradually removes uremic toxins and fluids while maintaining acid-base balance and stabilizing electrolytes. It is particularly useful for hemodynamically unstable patients. Unlike intermittent hemodialysis, which is faster, CRRT provides a gentler approach over 24 hours, closely mimicking the function of natural kidneys. However, CRRT is not ideal for patients with...
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[Citrate: an additional resource for anticoagulation in continuous replacement therapy].

Marco Pozzato1

  • 1Ospedale San Giovanni Bosco, ASL TO2 Nord, Torino, Italy. marco.pozzato1@gmail.com

Giornale Italiano Di Nefrologia : Organo Ufficiale Della Societa Italiana Di Nefrologia
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PubMed
Summary

Managing extracorporeal circuits in acute renal failure requires careful anticoagulation. Citrate offers an effective regional anticoagulation option, minimizing bleeding risks for critically ill patients needing renal replacement therapy.

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Area of Science:

  • Nephrology
  • Hematology
  • Critical Care Medicine

Context:

  • Renal replacement therapy (RRT) in acute renal failure (ARF) necessitates extracorporeal circuit anticoagulation.
  • Patients often present with complex coagulation abnormalities, uremia, sepsis, or recent surgery, increasing bleeding risks.
  • Selecting appropriate anticoagulation is crucial for circuit patency, filter efficiency, and minimizing hemorrhage.

Purpose:

  • To review anticoagulation strategies for extracorporeal circuits in ARF.
  • To highlight the risks and benefits of different anticoagulants, including heparin, dermatan sulfate, and citrate.
  • To emphasize citrate's role in managing anticoagulation in high-bleeding-risk patients.

Summary:

  • Heparin is the standard anticoagulant for critically ill patients without bleeding risks.
  • Dermatan sulfate serves as an alternative in cases of increased bleeding risk or heparin-induced thrombocytopenia (HIT-II).
  • Citrate provides effective regional anticoagulation, is easy to use, and is increasingly favored for high-bleeding-risk patients, allowing uninterrupted RRT.

Impact:

  • Citrate anticoagulation enables sustained RRT in critically ill ARF patients with high bleeding risks.
  • Improved anticoagulation management enhances filter lifespan and dialysis efficacy.
  • Facilitates achieving adequate dialysis doses in complex patient populations.