[Acute renal failure. Extracorporeal therapy].

Area of Science:

• Nephrology
• Critical Care Medicine
• Intensive Care Unit (ICU) Management

Context:

• Acute renal failure (ARF) is a common complication in critically ill patients, often associated with multiple organ dysfunction syndrome (MODS).
• Extracorporeal renal replacement therapies (RRTs) are essential for managing ARF in the ICU.
• Continuous RRTs are favored for hemodynamically unstable patients, while intermittent hemodialysis is another standard approach.

Purpose:

• To review the current landscape of renal replacement therapies for acute renal failure in critically ill patients.
• To compare the efficacy and patient survival outcomes of different RRT modalities.
• To provide guidance on selecting the appropriate RRT method based on patient status and resource availability.

Summary:

• Acute renal failure (ARF) is increasingly prevalent in critically ill patients, forming part of multiple organ dysfunction syndrome (MODS).
• Standard RRTs include intermittent hemodialysis and continuous renal replacement therapy (CRRT), with CRRT often preferred for unstable patients.
• Slow, extended daily dialysis (SLEDD) offers a hybrid approach. High-dose RRT consistently improves survival, but no specific method shows a definitive survival advantage.
• Selection should consider clinician experience, available resources, and individual patient needs.

Impact:

• Highlights the importance of RRT in managing critically ill patients with ARF.
• Emphasizes that while RRT improves survival, the choice of modality should be individualized.
• Informs clinical decision-making regarding RRT selection in the intensive care setting.