A lung transplant is a major surgical procedure that offers hope to people whose lungs no longer work well enough to support life, providing not just extended survival but also the possibility of returning to meaningful daily activities and improved well-being.

When Breathing Becomes a Matter of Survival

For people living with severe lung disease, every breath can feel like a struggle. When medications, breathing devices, and other treatments no longer help, and when lung function becomes life-threatening, doctors may suggest a lung transplant as a treatment option. This procedure involves replacing one or both damaged lungs with healthy lungs from a donor, usually someone who has passed away. The goal is not just to extend life, but to dramatically improve quality of life—allowing people to breathe easier, return to activities they love, and spend more time with family and friends.^[1]

Lung transplantation is reserved for individuals who have tried other treatments without sufficient improvement. It is considered when someone has a life expectancy of fewer than one to three years without a transplant. The surgery can be transformative, but it requires careful evaluation, long-term commitment to medications, and ongoing medical care. Understanding what lung transplant treatment involves—both the standard approaches and emerging therapies being tested in research—can help patients and families make informed decisions.^[2]

Several serious lung conditions can lead to the need for transplantation. Chronic obstructive pulmonary disease (COPD), including emphysema, is one of the most common reasons. COPD gradually destroys lung tissue, making it harder to breathe. Pulmonary fibrosis causes scarring of the lungs, which stiffens them and prevents proper oxygen absorption. Cystic fibrosis, an inherited condition, leads to thick mucus buildup in the lungs and repeated infections. Pulmonary hypertension—high blood pressure in the lung arteries—can also cause severe damage. Other conditions like lung injuries, COVID-19 complications, and certain rare diseases may also lead someone to need a transplant.^[2]

Types of Lung Transplants and How Patients Are Matched

Not all lung transplants are the same. There are three main types, and the choice depends on the patient’s underlying disease and overall health. A single lung transplant replaces just one diseased lung with a donor lung. A double lung transplant replaces both lungs. In rare cases, a heart-lung transplant may be needed if the heart is also severely damaged or if there are complex heart defects alongside lung disease. Each approach has different risks and benefits, and the transplant team carefully considers which is best for each patient.^[2]

Getting on the transplant waiting list is a complex process. Before a lung transplant, patients undergo extensive screening. This includes blood tests, imaging scans like CT scans and chest X-rays, heart tests, lung function tests, and evaluations of overall physical and mental health. A transplant coordinator gathers information about the patient’s medical history, current medications, and family health background. The team also checks for tissue compatibility between the patient and potential donors to reduce the risk of rejection.^[2]

Once approved, patients are placed on a national waiting list managed by the United Network for Organ Sharing (UNOS), a nonprofit organization that oversees organ distribution in the United States. Each patient receives a Lung Allocation Score (LAS), which predicts how urgently they need a transplant and how likely they are to benefit from it. A higher LAS score means the patient is prioritized. This system ensures fairness—factors like income or celebrity status do not affect how organs are distributed.^[5][19]

Preparing for Surgery and What Happens During the Procedure

While waiting for a transplant, patients must stay as healthy as possible. Physical fitness is crucial—the stronger a patient is before surgery, the better their recovery tends to be. Many transplant programs require patients to participate in pulmonary rehabilitation, which includes breathing exercises and physical therapy. Nutritionists help patients maintain a healthy weight and follow a balanced diet. Patients must also stop using all tobacco products, including cigarettes, vapes, and e-cigarettes, as nicotine can disqualify them from the transplant list.^[16][14]

Most patients on the waiting list need supplemental oxygen to help them breathe. Caregivers often assist patients in using oxygen devices correctly and ensuring there are enough oxygen tanks available, especially when traveling. In very severe cases, patients may require extracorporeal membrane oxygenation (ECMO), a technology that pumps oxygen directly into the blood through tubes placed in the neck, groin, or chest. These patients typically remain in the hospital until transplant.^[16]

The transplant team includes many specialists: pulmonologists (lung doctors), cardiothoracic surgeons, anesthesiologists, nurses, social workers, psychologists, pharmacists, dietitians, and financial coordinators. Effective communication and teamwork among all these professionals are essential for success. Patients are encouraged to bring a caregiver to appointments, take notes, ask questions, and stay closely connected with the team.^[4][16]

When donor lungs become available, patients often have only a few hours to get to the transplant center. Surgeons have a narrow window—typically four to six hours—to complete the transplant after retrieving the donor lungs. During surgery, the patient is under general anesthesia. Surgeons remove the diseased lung (or lungs) and attach the donor lung to the airway and blood vessels leading to and from the heart. The operation can take several hours, and the patient is closely monitored throughout.^[1][19]

Standard Treatment After Transplant: Medications and Monitoring

Immediately after surgery, patients are taken to the intensive care unit (ICU). They are placed on a ventilator to help them breathe until they are strong enough to breathe on their own. This recovery period in the ICU is critical, and the medical team monitors every aspect of the patient’s condition—heart function, lung function, blood pressure, oxygen levels, and signs of infection or rejection.^[20]

One of the most important aspects of post-transplant care is taking immunosuppressive drugs. These medications prevent the body’s immune system from attacking and rejecting the new lung. The immune system normally fights off foreign invaders like bacteria and viruses, but it can also mistakenly see the transplanted lung as a threat. Immunosuppressants lower this immune response, allowing the body to accept the new organ.^[2]

Common immunosuppressive drugs include calcineurin inhibitors (CNIs) like cyclosporine and tacrolimus, which work by blocking signals that activate immune cells. Another group, called mechanistic target of rapamycin (mTOR) inhibitors, includes drugs like sirolimus. Corticosteroids such as prednisone are also used to reduce inflammation. Patients typically take a combination of these drugs, and dosages are carefully adjusted based on blood tests that measure drug levels in the body—a process called therapeutic drug monitoring (TDM).^[11][9]

Immunosuppressive medications must be taken for life. Missing doses or stopping them can lead to rejection, where the body attacks the transplanted lung, potentially causing serious damage or even death. However, these drugs also have side effects. Prednisone can cause weight gain, acne, increased blood sugar, and bone thinning. Cyclosporine may lead to high blood pressure, kidney problems, tremors, and oily skin. Because the immune system is weakened, patients are also at higher risk for infections and certain cancers.^[9][18]

To reduce infection risk, patients receive additional medications. Antibiotics prevent bacterial infections, especially in the lungs. Antifungal drugs protect against fungal infections, which can be serious. Antiviral medications are used to prevent infections like cytomegalovirus (CMV), a virus that can cause severe complications in transplant recipients. Patients are also vaccinated against preventable diseases, though some vaccines cannot be given after transplant because they contain live viruses.^[11]

Most patients stay in the hospital for about three weeks after surgery. During this time, the transplant team closely monitors lung function, checks for signs of rejection or infection, and adjusts medications as needed. Patients begin pulmonary rehabilitation—breathing exercises and physical therapy designed to strengthen the lungs and body. Some patients may also work with speech or occupational therapists if they have trouble speaking or swallowing after being on a ventilator.^[20]

After discharge, patients must remain within a two-hour drive of the transplant center for at least two to three months. They return for frequent follow-up appointments, where the team performs blood tests, imaging scans, and breathing tests to ensure the new lungs are working properly. Bronchoscopy, a procedure where a thin tube with a camera is inserted into the lungs, may be done periodically to check for rejection or infection.^[20]

Managing Life After Transplant: Lifestyle and Long-Term Health

Life after a lung transplant requires ongoing commitment. Patients must take medications exactly as prescribed, attend all medical appointments, and watch for warning signs of complications. Common warning signs include fever, shortness of breath, cough, chest pain, fatigue, or changes in lung function. Any of these symptoms should be reported to the transplant team immediately.^[15]

Diet and exercise play a major role in recovery. Many patients gain weight after transplant due to medications like prednisone and because breathing requires less effort than before. A dietitian can help create a meal plan that maintains a healthy weight and supports overall health. Patients are encouraged to exercise daily—starting with short walks and gradually increasing activity. Exercise improves muscle strength, heart and lung function, and helps reduce stress. However, heavy weight lifting and strenuous activities should be avoided until cleared by the transplant team.^[14][18]

Patients cannot drive for about four weeks after surgery. The medications can cause tremors, weakness, and blurred vision, making driving unsafe. Once cleared by the team, most people can return to driving, work, and school within three to six months. Social activities are encouraged, but patients should avoid crowds and people who are sick, as their weakened immune system makes infections more dangerous.^[18]

Certain precautions are necessary at home. Patients should not keep pet birds, as their droppings can cause lung infections. Cats should be declawed, and patients should not change litter boxes. Patients should avoid gardening in soil without gloves, as soil contains fungi that can cause infections. Regular self-examinations for skin changes and routine cancer screenings are also important, as immunosuppressive drugs increase the risk of skin cancer and other malignancies.^[18]

Complications and Challenges in Long-Term Care

Despite advances, lung transplantation carries risks. Rejection is one of the most serious complications. There are two main types: acute cellular rejection (ACR), where immune cells attack the transplanted lung, and humoral rejection (HR), where antibodies target the organ. Rejection can occur at any time, even years after transplant. Symptoms include shortness of breath, fever, cough, and decreased lung function. Treatment usually involves increasing immunosuppressive drugs or giving high-dose steroids.^[11]

Infections are another major concern. Because the immune system is suppressed, patients are vulnerable to bacterial, viral, and fungal infections. Pneumonia, CMV infection, and fungal lung infections can be life-threatening. Patients are taught to recognize early signs of infection and seek treatment immediately. Preventive measures include hand hygiene, avoiding sick contacts, and taking prophylactic medications.^[11]

Other complications include kidney damage from immunosuppressive drugs, high blood pressure, diabetes (which can develop or worsen due to steroids), and bone thinning (osteoporosis). Patients may also develop chronic rejection, also called bronchiolitis obliterans syndrome, a condition where scar tissue gradually blocks the airways of the transplanted lung. This is a leading cause of late graft failure and may require adjusting medications or, in severe cases, considering a second transplant.^[11]

Innovations in Organ Preservation and Donor Selection

Advances in technology are expanding the number of lungs available for transplant. One major innovation is ex vivo lung perfusion (EVLP), a technique where donor lungs are placed on a special machine outside the body. A solution containing nutrients, proteins, and oxygen is circulated through the lungs, allowing doctors to evaluate their health, improve their function, and even reverse some damage. EVLP has made it possible to use lungs that previously would have been considered unsuitable, increasing the donor pool and reducing wait times.^[5]

Transplant centers are also accepting lungs from increased-risk donors. These are donors who have a slightly higher risk of carrying undiagnosed infections like HIV, hepatitis B, or hepatitis C. The organs themselves are not lower quality, and accepting them can significantly reduce waiting time. Patients who are willing to accept increased-risk organs are counseled about the risks and benefits, and they often receive transplants much sooner.^[5]

Clinical Trials and Emerging Therapies

Research is ongoing to improve outcomes for lung transplant patients. Clinical trials are testing new medications, surgical techniques, and strategies to prevent rejection and infection. While specific drug names and trial phases were not detailed in the available sources, transplant centers actively participate in studies aimed at refining immunosuppression protocols, reducing medication side effects, and improving long-term graft survival.

New approaches to preventing chronic rejection are a major focus. Researchers are exploring ways to better match donors and recipients, develop tolerance (where the immune system learns to accept the transplanted organ without needing as many drugs), and identify biomarkers that predict rejection before symptoms appear. Gene therapy and advanced immunotherapy techniques are also areas of active investigation, though these remain experimental.

Patients interested in participating in clinical trials should discuss this with their transplant team. Trials can offer access to cutting-edge treatments and contribute to advancing the field, but they also involve risks and uncertainties. Participation is voluntary, and patients are carefully informed about what to expect.

Most Common Treatment Methods

• Immunosuppressive Therapy
  • Calcineurin inhibitors (cyclosporine, tacrolimus) to prevent immune system activation
  • Mechanistic target of rapamycin (mTOR) inhibitors (sirolimus) to block immune cell growth
  • Corticosteroids (prednisone) to reduce inflammation
  • Combination therapy with multiple drugs adjusted based on therapeutic drug monitoring
  • Lifelong medication to prevent rejection of transplanted lung
• Infection Prevention
  • Antibiotic prophylaxis to prevent bacterial infections, especially in lungs
  • Antifungal medications to protect against fungal infections
  • Antiviral therapy to prevent cytomegalovirus (CMV) and other viral infections
  • Vaccination against preventable diseases before and after transplant
• Pulmonary Rehabilitation
  • Breathing exercises to improve lung function
  • Physical therapy to strengthen muscles and improve endurance
  • Gradual increase in daily walking and activity levels
  • Occupational therapy for patients with swallowing or functional difficulties
• Monitoring and Follow-up Care
  • Frequent blood tests to measure drug levels and organ function
  • Imaging scans (chest X-rays, CT scans) to check lung health
  • Pulmonary function tests to measure breathing capacity
  • Bronchoscopy procedures to detect early signs of rejection or infection
  • Regular appointments with transplant team for at least the first year
• Organ Preservation Technology
  • Ex vivo lung perfusion (EVLP) to evaluate, improve, and preserve donor lungs
  • Use of increased-risk donor organs with careful patient counseling
  • Advanced preservation solutions to extend viability during transport
• Lifestyle Modifications
  • Nutritional counseling to maintain healthy weight and prevent obesity
  • Exercise programs to improve cardiovascular and respiratory health
  • Smoking cessation and avoidance of all tobacco products
  • Avoidance of crowds, sick contacts, and environmental infection risks
  • Regular cancer screenings due to increased risk from immunosuppression