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Fluid therapy and newer blood products
1Department of Small Animal Clinical Sciences, Virginia-Maryland Regional College of Veterinary Medicine, Blacksburg, USA.
Summary
Individualized fluid therapy is crucial for surgical patients, adapting to their specific needs and the procedure. Optimal plans balance crystalloids and colloids to ensure tissue perfusion and oxygenation.
Area of Science:
- Anesthesiology
- Surgical Care
- Critical Care Medicine
Background:
- Fluid therapy plans are essential for surgical patients, tailored to individual needs.
- Patient status, surgical procedure, and expected losses dictate fluid volume and type.
- No single fluid regimen suits all patients; continuous re-evaluation is necessary.
Purpose of the Study:
- To outline the principles of developing individualized fluid therapy plans for surgical patients.
- To emphasize the importance of adapting fluid administration based on patient-specific factors and surgical context.
- To guide the selection and use of different fluid types for optimal patient outcomes.
Main Methods:
- Fluid therapy plans are developed pre-operatively, considering physical, acid-base, fluid, and electrolyte status.
- Fluid administration rates (e.g., 5-15 mL/kg/h of crystalloid) are guidelines, adjusted to achieve desired endpoints.
- Replacement of blood loss involves specific ratios: 3:1 for balanced replacement fluids and 1:1 for colloids/blood when hematocrit is <20% or blood loss is 20-25%.
Main Results:
- Minor procedures in healthy patients may require minimal or no fluid administration.
- Extensive surgeries, trauma, or major blood loss necessitate larger volumes of balanced replacement fluids.
- Optimal fluid therapy often combines crystalloids, natural colloids, and synthetic colloids.
Conclusions:
- Individualized fluid therapy is paramount in surgical care.
- Fluid regimens must be dynamic and continuously reassessed.
- A combination of fluid types ensures adequate tissue perfusion and oxygenation.