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Pass the salt: indications for and implications of using hypertonic saline
Andrea L Johnson1, Laura M Criddle
1trauma/neuro intensive care unit at Oregon Health & Science University, Portland, Ore, USA.
Critical Care Nurse
|November 6, 2004
Summary
Hypertonic saline is used for critical care conditions like hyponatremia, volume resuscitation, and brain injury. While promising for hypovolemia and brain injury, more research is needed on optimal dosing and risks.
Area of Science:
- Critical care medicine
- Nephrology
- Neurology
Background:
- Sodium is the primary extracellular ion.
- Hypertonic saline therapy has historical applications.
- Current critical care uses include hyponatremia, volume resuscitation, and brain injury.
Purpose of the Study:
- To review the current indications for hypertonic saline in critical care.
- To evaluate the evidence for its use in hyponatremia, hypovolemia, and brain injury.
- To identify areas needing further research regarding optimal dosing and risk-benefit profiles.
Main Methods:
- Literature review of hypertonic saline applications in critical care.
- Analysis of current clinical practice guidelines and research studies.
- Synthesis of evidence for efficacy and safety in specific conditions.
Main Results:
- Hypertonic saline is indicated for specific cases of hyponatremia, volume resuscitation, and brain injury.
- Most hyponatremia cases can be managed without hypertonic saline.
- Evidence for hypovolemia and brain injury is promising but requires further investigation.
Conclusions:
- Hypertonic saline remains a valuable tool in critical care for select indications.
- Further research is essential to optimize its use in volume resuscitation and brain injury management.
- Defining optimal dosing and comparing risks with conventional therapies are key research priorities.