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Optimizing intraoperative fluid therapy.

Robert Stephens1, Monty Mythen

  • 1Portex Anaesthesia, Intensive Therapy and Respiratory Medicine Unit, Institute of Child Health, London, UK. R.Stephens@ich.ucl.ac.uk

Current Opinion in Anaesthesiology
|October 6, 2006
PubMed
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Fluid resuscitation in surgery remains controversial. While saline solutions can cause metabolic acidosis, balanced solutions may offer benefits. Optimized fluid therapy is linked to improved patient outcomes.

Area of Science:

  • Anesthesiology
  • Perioperative Medicine
  • Critical Care

Background:

  • Fluid status correction is crucial in surgical anesthesia.
  • Fluid resuscitation choices (colloid vs. crystalloid, saline vs. Ringer's lactate) are debated.
  • Understanding fluid properties and carrier solutions is essential.

Purpose of the Study:

  • Review recent studies on crystalloids and colloids.
  • Examine the amount and timing of fluid therapy.
  • Clarify the ongoing crystalloid-colloid debate in perioperative fluid management.

Main Methods:

  • Review of recent studies on crystalloid and colloid solutions.
  • Analysis of fluid administration strategies (amount and timing).
  • Discussion of carrier solutions like saline and Ringer's lactate.

Related Experiment Videos

Main Results:

  • Saline-based fluids can induce hyperchloremic metabolic acidosis and hypocoagulability.
  • Saline may negatively impact renal function.
  • Balanced solutions, similar to Ringer's lactate, may mitigate these effects.
  • Fluid optimization strategies, alongside other therapies, correlate with improved organ perfusion and outcomes.

Conclusions:

  • Saline and saline-based colloids are linked to acidosis and hypocoagulability, though not always adverse outcomes.
  • The 'Stewart hypothesis' offers insights into managing hyperchloremic acidosis.
  • Fluids and carrier solutions act as drugs with distinct effects.
  • Studies show improved clinical outcomes with optimized fluid administration protocols.