Bronchopulmonary dysplasia is a serious lung condition that develops in premature babies who need breathing support after birth. The condition does not exist at birth but emerges over time when tiny, underdeveloped lungs are exposed to oxygen and pressure from breathing machines. Although there is no cure, treatment aims to help the lungs grow and heal, allowing most babies to eventually breathe on their own and live healthy lives.

How Treatment Helps Babies with Damaged Lungs

When a baby is born many weeks before their due date, their lungs are often too immature to work properly on their own. These babies need help breathing, which usually comes in the form of a ventilator (a breathing machine) or extra oxygen delivered through tubes. While this support is essential to keep the baby alive, it can also damage the delicate lung tissue over time. The air sacs in the lungs, called alveoli, can become overstretched and inflamed, and the airways may develop scarring. This damage leads to what doctors call bronchopulmonary dysplasia.^[1][2]

Treatment for bronchopulmonary dysplasia focuses on several key goals. The first priority is to reduce further damage to the lungs while giving them time to grow and develop. Doctors aim to wean babies off supplemental oxygen as soon as it is safe to do so, because prolonged oxygen exposure can continue to harm the lungs. Another major goal is to ensure the baby receives proper nutrition, as good nutrition is crucial for lung growth and overall development. Treatment also addresses complications that can arise from the condition, such as feeding difficulties, high blood pressure in the lungs (called pulmonary hypertension), and problems with growth.^[3][4]

The approach to treatment depends heavily on how severe the baby’s condition is and at what stage of development they were born. Babies born before 32 weeks of pregnancy are at the highest risk, especially those weighing less than 2 pounds at birth. The severity of bronchopulmonary dysplasia is typically determined by how much breathing support the baby needs at 36 weeks after conception (called postmenstrual age) or at 28 days of life. Some babies have mild disease and recover relatively quickly, while others have severe disease requiring months of intensive care in the neonatal intensive care unit (NICU).^[5][6]

Standard Approaches to Managing the Condition

There is no single medication or procedure that can cure bronchopulmonary dysplasia immediately. Instead, doctors use a combination of supportive treatments to help the baby’s lungs heal while minimizing further damage. The cornerstone of standard treatment is providing just enough oxygen and breathing support to keep the baby’s oxygen levels stable, without using more pressure or higher oxygen concentrations than necessary. This careful balance is critical because too much support can worsen lung damage, while too little can deprive the body of oxygen it needs to grow and function.^[7][8]

Babies with bronchopulmonary dysplasia are often started on diuretics, which are medications that help the body remove excess fluid. Fluid can build up in the lungs and make breathing more difficult, so diuretics like furosemide are commonly used to reduce lung swelling and improve oxygen exchange. However, these medications can cause the body to lose important minerals like potassium, so doctors monitor blood levels carefully and may give supplements as needed. Diuretics are typically used for several weeks or months, depending on how quickly the baby’s lungs improve.^[9][11]

Bronchodilators are another class of medications used in standard treatment. These drugs help relax and open the airways, making it easier for air to flow in and out of the lungs. Examples include albuterol and ipratropium, which are often given through a nebulizer (a device that turns liquid medicine into a mist the baby can breathe in). Bronchodilators can reduce wheezing and help babies breathe more comfortably, though not all babies with bronchopulmonary dysplasia respond to these medications. Doctors usually try them to see if they provide benefit.^[9][11]

Corticosteroids, such as dexamethasone or hydrocortisone, are powerful anti-inflammatory medications that can reduce swelling and scarring in the lungs. These drugs have been shown to help some babies with severe bronchopulmonary dysplasia wean off the ventilator more quickly. However, corticosteroids can have serious side effects, including slower growth, higher blood sugar, higher blood pressure, and potential impacts on brain development. Because of these risks, doctors use corticosteroids cautiously and only in babies with the most severe disease who are not improving with other treatments. The decision to use steroids is made carefully, weighing the potential benefits against the risks for each individual baby.^[9][11][13]

Caffeine is a medication that may surprise many parents, but it is widely used in premature babies. Caffeine stimulates the brain’s breathing center and can reduce episodes where the baby stops breathing temporarily (called apnea). Studies have shown that caffeine given to premature babies can reduce the risk of developing bronchopulmonary dysplasia and help babies come off the ventilator sooner. It is generally well-tolerated with few side effects.^[9][13]

Nutrition plays a critical role in treating bronchopulmonary dysplasia. Babies with damaged lungs burn more calories because breathing requires extra effort. At the same time, their lungs may not tolerate large volumes of fluid, so doctors must carefully balance providing enough calories for growth while avoiding fluid overload. Many babies receive high-calorie formula or breast milk, sometimes through a feeding tube if they are too weak to feed by mouth. Proper nutrition supports lung tissue repair and helps the baby gain weight, which is essential for recovery.^[4][11]

In addition to medications and nutrition, babies may receive vitamin A supplementation. Some research suggests that vitamin A can support lung development and reduce the severity of bronchopulmonary dysplasia in very premature babies. It is typically given by injection several times a week during the early weeks of life.^[11]

Managing the baby’s breathing support is an ongoing process that requires constant adjustment. Doctors work to use the gentlest ventilation strategies possible. This may mean using continuous positive airway pressure (CPAP), which delivers a steady stream of air through nasal prongs to keep the airways open without the need for a breathing tube in the windpipe. When a ventilator is necessary, settings are carefully chosen to avoid overstretching the lungs. Some hospitals use specialized types of ventilators, such as high-frequency oscillatory ventilators, which deliver very small, rapid breaths that may be gentler on fragile lungs.^[11][13]

Babies with bronchopulmonary dysplasia are also monitored closely for complications. One common problem is a heart defect called patent ductus arteriosus (PDA), where a blood vessel that should close after birth remains open, putting extra strain on the heart and lungs. If the PDA is causing problems, it may be treated with medication or closed with a surgical procedure. Another serious complication is pulmonary hypertension, where blood pressure in the lung arteries becomes dangerously high. This requires specialized treatment and close monitoring by heart and lung specialists.^[2][12]

Innovative Therapies Being Studied in Research

While standard treatments have improved outcomes for many babies with bronchopulmonary dysplasia, the condition remains a major challenge. Researchers around the world are testing new approaches to prevent lung damage and promote healing. These experimental therapies are being evaluated in clinical trials to determine whether they are safe and effective before they can become part of routine care.^[9][13]

One area of active research involves stem cell therapy. Stem cells are special cells that have the potential to develop into different types of tissue, including lung tissue. Scientists are investigating whether giving premature babies stem cells derived from umbilical cord blood or other sources might help repair damaged lungs and reduce inflammation. Some early-phase clinical trials have shown promising results, with babies receiving stem cell therapy showing improved lung function and fewer complications. However, more research is needed to confirm these findings and establish the best way to use stem cells. These studies are taking place in specialized centers in the United States, Europe, and other countries.^[9][13]

Another innovative approach being explored is the use of medications that target specific inflammatory pathways. Bronchopulmonary dysplasia involves complex inflammation in the lungs, and researchers are testing drugs that can block particular molecules involved in this inflammation. For example, some studies are looking at inhibitors of certain enzymes or proteins that drive lung damage. These targeted therapies aim to reduce inflammation more precisely than broad-acting steroids, potentially offering benefits with fewer side effects. These studies are still in early phases, typically Phase I (testing safety) or Phase II (testing effectiveness in small groups of patients).^[13]

Researchers are also investigating inhaled medications that can be delivered directly to the lungs, which may reduce side effects compared to medications given by mouth or injection. For example, inhaled corticosteroids are being studied as a way to reduce lung inflammation without causing the systemic side effects associated with oral or intravenous steroids. Early results have been mixed, with some studies showing modest benefits and others showing no clear advantage. More research is needed to determine which babies might benefit most from inhaled therapies.^[9][13]

Growth factors are another class of experimental treatments being studied. These are natural proteins that help tissues grow and repair themselves. Researchers are testing whether giving babies growth factors that specifically support lung development might help heal damaged tissue and promote the formation of new, healthy alveoli. Some of these studies involve giving growth factors directly into the lungs through a breathing tube. Results from early trials are being analyzed to see if this approach is safe and shows promise for further development.^[13]

Prevention strategies are also a major focus of clinical research. Scientists are studying ways to protect premature babies’ lungs before bronchopulmonary dysplasia develops. This includes optimizing the use of surfactant, a substance that helps keep the air sacs open. Newer methods of delivering surfactant without needing to place a breathing tube in the windpipe are being tested. These less invasive approaches may reduce lung trauma and lower the risk of bronchopulmonary dysplasia. Some trials are also evaluating whether giving mothers medications before premature delivery can better prepare the baby’s lungs for life outside the womb.^[11][13]

Clinical trials for bronchopulmonary dysplasia are being conducted at major medical centers and research hospitals worldwide. Eligibility for these trials typically depends on factors such as the baby’s gestational age at birth, birth weight, severity of lung disease, and whether they are receiving certain types of breathing support. Families interested in learning about clinical trials can ask their baby’s doctors or search online registries of clinical studies. Participation in a clinical trial means the baby may receive a new treatment that is not yet widely available, but it also involves careful monitoring and follow-up to track safety and outcomes.^[13]

Most common treatment methods

• Oxygen therapy and breathing support
  • Continuous positive airway pressure (CPAP) delivered through nasal prongs to keep airways open
  • Mechanical ventilation with carefully adjusted settings to minimize lung damage
  • Supplemental oxygen to maintain adequate blood oxygen levels while avoiding excessive concentrations
  • High-frequency ventilation as a gentler alternative for some babies
• Medications
  • Diuretics like furosemide to reduce fluid buildup in the lungs
  • Bronchodilators such as albuterol or ipratropium to help open airways and reduce wheezing
  • Corticosteroids including dexamethasone or hydrocortisone for severe inflammation, used cautiously due to potential side effects
  • Caffeine to stimulate breathing and reduce apnea episodes
  • Vitamin A supplementation to support lung development
• Nutritional support
  • High-calorie formula or fortified breast milk to meet increased energy needs
  • Feeding tubes when babies are too weak to feed by mouth
  • Careful fluid management to provide adequate nutrition without overloading the lungs
• Treatment of complications
  • Closure of patent ductus arteriosus with medication or surgery
  • Management of pulmonary hypertension with specialized medications
  • Monitoring and treatment of gastroesophageal reflux disease
• Experimental therapies in clinical trials
  • Stem cell therapy using cells from umbilical cord blood to repair lung tissue
  • Targeted anti-inflammatory medications that block specific inflammatory pathways
  • Inhaled corticosteroids to reduce lung inflammation with fewer systemic side effects
  • Growth factors to promote lung tissue development and healing
  • Less invasive surfactant delivery methods to prevent lung injury