A large clinical trial published in the New England Journal of Medicine found that two widely used IV fluids, balanced crystalloid and 0.9% saline, are equally safe and effective for treating septic shock in children. The study was conducted across 47 pediatric emergency departments in five countries, with no difference in outcomes between the two fluid types. This provides reassuring evidence for clinicians who have debated which fluid might be better for this young patient group.
Key Takeaways
- Both balanced crystalloid and 0.9% saline work equally well for pediatric septic shock.
- The trial involved 47 emergency departments in five countries.
- No significant difference in safety or effectiveness was detected between the two fluids.
- Results were published in the New England Journal of Medicine.
- The finding may simplify fluid choice in emergency settings.
Understanding the Study
The trial was a randomized clinical trial that included children with septic shock who were treated in pediatric emergency departments. Researchers randomly assigned participants to receive either balanced crystalloid fluid or 0.9% saline, both of which are standard IV fluids used to restore blood pressure and organ perfusion during septic shock. The study was conducted at 47 sites across five countries, including Ann and Robert H. Lurie Children’s Hospital in Chicago.
According to the original report on Medical Xpress, the results showed that the two fluids performed equally well. There was no statistically significant difference in how quickly children recovered or in key safety measures such as kidney function. This outcome was robust across different age groups and severity of illness.
Why This Question Matters
Septic shock is a life threatening condition in which infection triggers a cascade of inflammation, causing blood pressure to drop dangerously low. Rapid IV fluid administration is a cornerstone of treatment, but doctors have long debated which fluid is optimal. Some evidence from adult studies suggested that balanced crystalloid might reduce the risk of kidney injury or death compared with saline. However, children have different physiology, and pediatric specific data were limited.
This trial directly addresses that gap. By studying children exclusively and using a randomized design, the researchers were able to provide clear, pediatric specific evidence. The finding that both fluids are equivalent means that hospitals do not need to change their existing protocols, and clinicians can use whichever fluid is readily available.
What the Results Mean for Practice
For emergency department doctors and nurses, the main implication is that choice of IV fluid does not appear to affect outcomes for children in septic shock. This may reduce pressure to stock a particular type of fluid or to switch fluids based on theoretical benefits. The authors noted that the results support the continued use of either saline or balanced crystalloid as clinically appropriate.
However, the study also highlights the need for ongoing research. While these two fluids are equivalent, other fluids, such as albumin or synthetic colloids, were not tested. The findings apply specifically to the initial resuscitation phase of septic shock in children, not to long term fluid management or to other conditions.
Frequently Asked Questions
What is the difference between balanced crystalloid and saline?
Balanced crystalloid solutions, such as lactated Ringer’s solution, have a composition more similar to human plasma, including electrolytes like potassium and lactate. 0.9% saline is simply salt water with a sodium concentration slightly higher than plasma. For decades, saline was the default fluid, but balanced solutions have gained popularity in some adult settings.
How was the trial conducted?
The trial was a randomized clinical trial, meaning children were assigned by chance to receive either balanced crystalloid or saline. Neither the treating team nor the researchers knew which fluid a child received (double blinding). The study included children with septic shock in 47 pediatric emergency departments in five countries.
Does this apply to adults?
This study specifically looked at children. While some adult studies have suggested potential benefits of balanced crystalloid over saline, the pediatric trial found no difference. The results should not be directly applied to adult patients or to other pediatric conditions without further research.
This is an original report by Vital Signs Today, informed by reporting from Medical Xpress. Read the original source.
This article is for information only and is not medical advice. See our Medical Disclaimer.


