- New study pits two gentler surfactant methods against each other in preemies.
- Helps babies born 26 to 35 weeks old who struggle to breathe.
- The catch: both methods still sent about a third to a ventilator.
A Tiny Struggle Millions Of Families Know
Every year, around 15 million babies are born too early. Many arrive before their lungs finish building a slippery coating called surfactant. Without enough of it, the tiny air sacs collapse with each breath.
Doctors call this respiratory distress syndrome, or RDS. It's one of the top reasons preemies end up on breathing machines.
The fix sounds simple. Squirt more surfactant into the lungs. But how you deliver it can change everything — from how long a baby spends on a ventilator to whether they develop chronic lung damage later.
Why The Old Way Felt Too Rough
For years, the go-to method was called INSURE. Doctors would slide a breathing tube down the baby's windpipe, drip in surfactant, then pull the tube out.
It worked. But it meant sedating fragile babies and putting them on full mechanical breathing, even briefly. That short pressure burst could bruise delicate lung tissue.
Then came LISA — less invasive surfactant administration. Instead of a breathing tube, doctors use a thin, soft catheter. The baby keeps breathing on their own the whole time.
But here's the twist. A newer upgrade to the old method, called ENSURE (enhanced INSURE), tried to fix the rough parts of the original. And no one had really tested LISA against ENSURE head-to-head.
Think Of It Like Watering A Plant
Picture a wilting seedling with paper-thin leaves. You need to water the roots without knocking the plant over.
LISA is like using a slim dropper. You barely touch the soil.
ENSURE is more like a careful funnel — still direct, but softer and faster than the old way. The question researchers wanted to answer was simple. Does the dropper really win, or can a better funnel do the same job?
Inside The North India Trial
Doctors at a tertiary hospital in North India enrolled 118 preemies born between 26 and 35 weeks. All of them needed surfactant to survive their first days.
The team flipped a coin, in effect, sending half to LISA and half to ENSURE. They then tracked who needed a full breathing machine in the first 72 hours — the most dangerous window.
Here's the surprise. The two groups looked almost identical.
About 32 percent of LISA babies ended up on a ventilator within three days. In the ENSURE group, it was about 34 percent. That difference was so small it could have happened by chance.
Length of breathing support, rates of chronic lung disease, and survival were also similar. In other words, no method ran away with the win.
This doesn't mean either technique is bad — it means both may be good enough when done right.
Where This Fits In The Bigger Picture
For years, many neonatal units have been racing to adopt LISA, assuming the gentler catheter must be better. This trial adds a quieter message.
The real hero may be the protocol itself — the careful timing, the trained hands, the consistent approach. A well-run ENSURE may match a well-run LISA. Expertise and teamwork might matter as much as the tool.
What This Means For Your Family
If your baby is born early and needs surfactant, you may hear either method offered. Parents sometimes worry about which one their hospital uses.
This study suggests that's less important than it feels. What matters more is whether the team is skilled, the plan is clear, and the timing is right. If you have questions, ask the neonatal team which approach they use most — and why. Both are reasonable choices.
Honest Limits Of This Study
This was a single hospital, with just over 100 babies. Results from one center don't always carry across the world.
It was also open-label, meaning doctors knew which method they were giving. That can quietly influence decisions at the bedside.
Bigger, multi-center trials are still needed to see if these findings hold up.
For now, both LISA and ENSURE remain on the table. Larger studies are already underway in several countries, and newer delivery tools are being designed to make the process even gentler — think aerosol sprays or pre-loaded catheters.
The takeaway from this research is patience. Progress in newborn care rarely comes from one big leap. It comes from steady, careful comparisons like this one, each adding a piece to the puzzle of how to protect the tiniest lungs.