Breathing Without the Tube: How Doctors Choose the Best Support for a Premature Baby's Lungs

A large 2024 study compared four gentle breathing-support methods used after a premature baby comes off the ventilator — and ranked which works best

When a premature baby is ready to come off a breathing machine, the tube in the windpipe is removed and the baby is switched to a gentler form of support delivered through the nose. A large 2024 research review combined 23 clinical trials involving 2,331 newborns to compare four of these gentle methods, and found that all of them kept babies off the ventilator better than the oldest and simplest method, with a newer oscillating method ranking highest [1]. The findings do not call for an overnight change in care, but they help doctors and families understand why the choice of support matters and what the trade-offs are.

Why This Question Matters

Babies born many weeks early often have lungs that are not yet ready to breathe on their own. Their bodies lack enough of a natural soapy substance, called surfactant, that keeps the tiny air sacs in the lungs from collapsing. To help them through the first days, doctors sometimes place a breathing tube into the windpipe and connect it to a ventilator. This is lifesaving, but it is not gentle: the longer a fragile baby stays on a ventilator, the higher the risk of lasting lung injury known as bronchopulmonary dysplasia, or BPD. So the goal is always to remove the tube — "extubate" the baby — as soon as it is safe.

The hard part is what comes next. If the support after the tube is too weak, the baby tires, the breathing falters, and the tube has to go back in. Every reintubation is stressful for the baby and sets the clock back. Choosing the right kind of nose-delivered support is therefore one of the most important decisions in a premature baby's early care — and it is the decision this 2024 review set out to inform.

How Support After the Tube Has Changed

For a long time, the standard gentle support was a steady cushion of air pressure delivered through little prongs in the nose, called CPAP (continuous positive airway pressure). CPAP holds the air sacs open with one constant pressure, and it changed newborn care so profoundly that it now sits at the center of international treatment guidelines used by hospitals around the world [2]. The evidence for being gentle came first from the delivery room. A large review that combined several major trials found that starting premature babies on CPAP instead of a breathing tube reduced death and serious lung injury [3]. Two of those landmark studies — one comparing early CPAP with giving surfactant through a tube [4], and one comparing nasal CPAP with intubation right after birth [5] — helped convince doctors that less invasive breathing help is usually better for delicate lungs.

But CPAP is only the beginning of the story. Doctors learned that keeping a baby off the tube after it is removed sometimes needs more than a steady pressure, and they developed a whole toolkit of steps to improve success, from caffeine to fine-tuning the support [6]. They also built methods that do more than hold a constant pressure. One, called NIPPV, adds gentle extra puffs on top of the CPAP cushion to help the baby's own breaths; careful reviews have shown it keeps the tube out better than plain CPAP [7], a finding confirmed by a large trial across many hospitals [8]. Another, called BiPAP, switches between two pressure levels. The newest, called NHFOV, adds very fast, tiny vibrations that are especially good at clearing out carbon dioxide, the waste gas the lungs must breathe off. Until this review, though, no single study had compared all four methods side by side — leaving families and doctors without a clear map.

What the Researchers Did

A team based at a university hospital in China gathered every suitable clinical trial they could find, searching medical databases in both English and Chinese through April 2024 [1]. They combined 23 trials involving 2,331 newborns — nearly all premature babies with breathing distress who had been on a ventilator and were being switched to nose support. Babies with birth defects of the lungs, heart, or diaphragm were left out, so the comparison focused on the ordinary situation of a premature baby recovering from breathing distress. Then they used a statistical technique called a "network meta-analysis," which is a way of comparing treatments even when they were not all tested directly against each other in the same trial. Think of it like ranking sports teams that did not all play one another: if Team A beat Team B, and Team B beat Team C, the method can estimate how A would fare against C. The researchers focused on two main questions — how often the breathing tube had to be put back in within three days, and how well each method cleared carbon dioxide — plus a list of possible complications.

What They Found

The clearest result was about avoiding reintubation. Compared with plain CPAP, all three of the more supportive methods kept the tube out better [1]. The oscillating method, NHFOV, cut the chance of needing the tube back in to about a quarter of the CPAP rate; the puff-adding method, NIPPV, and the two-level method, BiPAP, each roughly halved it. When the researchers ranked the four methods, NHFOV came out on top, followed by NIPPV and BiPAP close together, with plain CPAP last. NHFOV was also the best at clearing carbon dioxide, which fits with how its rapid vibrations work.

Encouragingly, the more supportive methods — NHFOV and NIPPV — were also linked to less of the serious lung injury BPD than plain CPAP. And on the safety side, the methods looked broadly similar: there were no meaningful differences between them in nose irritation, air leaks, bleeding in the brain, eye problems, or serious bowel injury. In plain terms, the choice among these methods appears to be about how well they support breathing, not about trading one danger for another. One result stood out for the puff-adding method: NIPPV was linked to lower death rates than plain CPAP, another sign that a little extra support can matter for the most fragile babies.

What This Means for Families

If your baby is switched to a method other than plain CPAP after coming off the ventilator, this research helps explain why: the care team is choosing support with the best chance of keeping the tube out and protecting the lungs. It is worth knowing that the study ranked NHFOV first but could not prove it clearly beats NIPPV — the two best methods were close, and NIPPV is the one most hospitals have the most experience with and the strongest track record for. NHFOV is a promising newer option, especially helpful for babies who have trouble clearing carbon dioxide, thanks to the way its fast vibrations work [9].

It is also completely normal, and not a failure, if a baby needs the tube put back in; it simply means the lungs need a little more time. Parents should feel free to ask the care team which method their baby is on and why it was chosen — these are reasonable questions, and the answer often depends on the individual baby's breathing and carbon dioxide levels. The researchers themselves urged caution, noting that the trials they combined were relatively few and not all of the highest quality, and independent expert reviews of the newest oscillating method remain careful for the same reason [10]. This one study does not rewrite the rules of care; it adds a clearer sense of which gentle methods tend to work best.

It also helps to know that no single method is right for every baby, and that hospitals differ in the equipment and experience they have. Some units use the oscillating method routinely, while others rely mainly on the puff-adding method they know best — and both approaches are reasonable. What matters most is not the label on the machine but how carefully the support is set up and watched: a snug, comfortable nasal fit, close monitoring of the baby's breathing and carbon dioxide, and a team ready to adjust quickly. A method delivered attentively often does more good than a "higher-ranked" method used without the right experience, which is one reason care teams weigh their own resources when they choose.

What Comes Next

The most useful next step, researchers agree, would be a large, carefully designed trial comparing the two front-runners — NHFOV and NIPPV — head to head, using the same settings across hospitals and following the babies long enough to check on their growth and development. Until that trial is done, updated international guidelines [11] and evidence summaries [12] will keep refining the best approach as new studies appear. For now, families can take reassurance in a simple idea behind this research: the goal is always the gentlest support that safely keeps a baby breathing on their own, and doctors now have a clearer map of which gentle methods do that best.

References

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  2. Sweet DG, Carnielli VP, Greisen G, et al. European Consensus Guidelines on the Management of Respiratory Distress Syndrome: 2022 Update. Neonatology. 2023;120(1):3-23. doi:10.1159/000528914 ↩
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  6. Ferguson KN, Roberts CT, Manley BJ, Davis PG. Interventions to improve rates of successful extubation in preterm infants: a systematic review and meta-analysis. JAMA Pediatr. 2017;171(2):165-174. doi:10.1001/jamapediatrics.2016.3015 ↩
  7. Lemyre B, Deguise MO, Benson P, Kirpalani H, De Paoli AG, Davis PG. Nasal intermittent positive pressure ventilation (NIPPV) versus nasal continuous positive airway pressure (NCPAP) for preterm neonates after extubation. Cochrane Database Syst Rev. 2023;7:CD003212. doi:10.1002/14651858.CD003212.pub4 ↩
  8. Kirpalani H, Millar D, Lemyre B, et al. A trial comparing noninvasive ventilation strategies in preterm infants. N Engl J Med. 2013;369(7):611-620. doi:10.1056/NEJMoa1214533 ↩
  9. De Luca D, Dell'Orto V. Non-invasive high-frequency oscillatory ventilation in neonates: review of physiology, biology and clinical data. Arch Dis Child Fetal Neonatal Ed. 2016;101(6):F565-F570. doi:10.1136/archdischild-2016-310664 ↩
  10. Abdel-Latif ME, Osborn DA, Challis D, et al. Non-invasive high-frequency ventilation in newborn infants with respiratory distress. Cochrane Database Syst Rev. 2024;5:CD012712. doi:10.1002/14651858.CD012712.pub2 ↩
  11. Sweet DG, Carnielli VP, Greisen G, et al. European Consensus Guidelines on the Management of Respiratory Distress Syndrome: 2025. Neonatology. 2025. doi:10.1159/000551062 ↩
  12. Lemyre B, Davis PG, De Paoli AG, Kirpalani H. Early nasal intermittent positive pressure ventilation (NIPPV) versus early nasal continuous positive airway pressure (NCPAP) for preterm infants. Cochrane Database Syst Rev. 2023;7:CD005384. doi:10.1002/14651858.CD005384.pub3 ↩