Fluid use in adult intensive care

Area of Science:

• Critical Care Medicine
• Resuscitation Science
• Nephrology

Background:

• Fluid resuscitation is crucial for restoring circulating blood volume but lacks clear guidelines.
• Colloids, like hydroxyethyl starch, are common but may cause nephrotoxicity.
• Static cardiac filling parameters (CVP, PCWP) are unreliable for predicting fluid responsiveness.

Purpose of the Study:

• To review current understanding and recommendations for fluid therapy in critically ill patients.
• To highlight the limitations of traditional fluid management strategies.
• To emphasize the importance of dynamic parameters and patient response in guiding fluid resuscitation.

Main Methods:

• Review of existing literature and consensus statements on fluid resuscitation.
• Comparison of static versus dynamic parameters for assessing fluid responsiveness.
• Evaluation of different fluid types (colloids vs. crystalloids) and their efficacy.

Main Results:

• Dynamic parameters (GEDV, SVV) and tests (fluid challenge, passive leg raising) are more appropriate for assessing fluid responsiveness.
• No convincing data supports the superiority of colloids over crystalloids.
• Balanced crystalloid solutions are recommended to avoid hyperchloremia.

Conclusions:

• Fluid transfusion regimens should be individualized based on clinical assessment and patient response.
• Dynamic assessment of fluid responsiveness is superior to static measures.
• Further research is needed to establish clear guidelines for fluid therapy in critical care.