Lung Transplantation (Preoperative Evaluation)
For Which Diseases Is Lung Transplantation Performed? Candidacy, the Waiting List, Single and Double Lung Transplantation, Surgery, Organ Rejection and Follow-Up.

What Is Lung Transplantation?
Lung transplantation is an advanced treatment considered for certain lung diseases that have reached an advanced stage and continue to progress despite available treatments. It involves replacing one or both lungs that can no longer function adequately with a healthy lung from a suitable donor. Not every patient with advanced lung disease is a transplant candidate. In addition to the type of disease and how quickly it progresses, the evaluation also considers the person's overall health, the function of other organs, infection risk, physical resilience and ability to follow the lifelong treatment and follow-up program required after surgery. The goal of lung transplantation in suitable patients is to improve breathing capacity and quality of life and, compared with the natural course of the disease, to help prolong survival. However, transplantation is not a one-time procedure that simply eliminates the disease. It is a major surgical operation, and lifelong use of immunosuppressive medications and regular follow-up are required to protect the transplanted lung.
For Which Diseases May Lung Transplantation Be Considered?
- Chronic obstructive pulmonary disease (COPD)
- Advanced-stage emphysema
- Lung disease due to alpha-1 antitrypsin deficiency
- Idiopathic pulmonary fibrosis
- Other progressive interstitial lung diseases
- Cystic fibrosis
- Advanced bronchiectasis
- Pulmonary arterial hypertension
- Sarcoidosis
- Lymphangioleiomyomatosis
- Certain occupational and environmental lung diseases
- Advanced lung involvement due to selected connective tissue diseases
- Certain congenital lung and vascular diseases
- Advanced loss of function in a previously transplanted lung
Lung Transplantation in COPD and Emphysema
- Loss of lung function
- The impact of shortness of breath on daily life
- The need for oxygen or respiratory support
- Hospital and intensive care admissions
- The distribution of emphysema in the lungs
- The presence of pulmonary hypertension
- Heart and vascular diseases
- Nutritional status
- Muscle strength and physical endurance
Transplantation in Pulmonary Fibrosis and Interstitial Lung Diseases
- Changes in pulmonary function tests
- Increasing oxygen requirement
- Computed tomography findings
- A drop in oxygen levels during exertion
- Walking capacity
- Development of pulmonary hypertension
- Hospital admissions
- The rate of disease progression
Lung Transplantation in Cystic Fibrosis and Bronchiectasis
- The level of lung function and how quickly it is changing
- Frequency of hospital admissions
- The need for intravenous antibiotics
- Recurrent or resistant infections
- Microorganisms identified in sputum cultures
- Nutritional status
- Diabetes and other coexisting conditions
- Bleeding from the lungs
- History of pneumothorax
- The need for oxygen or respiratory support
Lung Transplantation in Pulmonary Hypertension
When Should Evaluation for Lung Transplantation Take Place?
- The rate of disease progression
- The benefit gained from current treatments
- The expected course of the disease
- Capacity for daily activities
- The need for oxygen and respiratory support
- Frequency of hospital admissions
- The risk of transplant surgery
- The likely wait for a suitable donor
How Is Candidacy for Lung Transplantation Determined?
- Is the lung disease at an advanced, irreversible stage?
- Have the available treatment options been appropriately applied?
- Is the risk of the disease progressing without transplantation high?
- Does the expected benefit of transplantation outweigh the risks of surgery and long-term treatment?
- Is the person able to withstand a major operation?
- Can the postoperative medication and follow-up program be maintained?
- Is the risk of infection or cancer at an acceptable level?
- Is the function of other organs adequate for transplantation?
- Can modifiable risk factors be reduced?
Is Age a Barrier to Lung Transplantation?
- Heart and vascular diseases
- Impaired kidney function
- Muscle loss and frailty
- Osteoporosis
- Cancer risk
- Difficulty recovering after surgery
Why Are Frailty and Physical Reserve Important?
- Walking capacity
- Muscle strength
- Activities of daily living
- Nutritional status
- Exercise tolerance
- Overall physical performance
Conditions That May Be Barriers to Lung Transplantation
- Active, uncontrolled infections
- Certain malignant tumors that are active or carry a high risk of recurrence
- Advanced, irreversible dysfunction of another organ
- Serious uncontrolled heart or vascular diseases
- Active tobacco and nicotine use
- Active, uncontrolled substance use disorders
- Serious adherence problems that may prevent the treatment and follow-up program from being maintained
- Advanced frailty that cannot be corrected
- Uncontrolled psychiatric or cognitive problems that prevent safe treatment follow-up
- The coexistence of several serious diseases that create a very high surgical risk

Smoking and Nicotine Use
- Infection
- Heart and vascular diseases
- Cancer
- Wound healing problems
- The long-term health of the transplanted lung
- Quitting smoking
- Stopping e-cigarette use
- Not using other nicotine products
- Reducing secondhand exposure
- Confirmation with nicotine or cotinine tests when deemed necessary
What Tests Are Done Before Transplantation?
Respiratory Evaluation
The evaluation may use:- Pulmonary function tests
- Lung volumes
- Diffusion capacity
- Blood gas analysis
- Six-minute walk test
- Assessment of oxygen requirement
- Chest computed tomography
- Ventilation-perfusion studies when needed
- Bronchoscopy
- Sputum cultures
- Assessment of the respiratory muscles
Cardiovascular Evaluation
Depending on the person's condition, tests such as the following may be needed:- Electrocardiography
- Echocardiography
- Right heart catheterization
- Assessment of the coronary arteries
- Assessment of the peripheral blood vessels
- Measurement of pulmonary vascular pressures
Evaluation of Other Organs
To assess how health problems outside the lungs may affect transplant risk, the following may be performed:- Kidney and liver function tests
- Digestive system evaluation
- Bone density measurement
- Dental and oral health evaluation
- Cancer screening appropriate to age and personal risk
- Infection tests
- Nutritional assessment
- Assessment of muscle strength and physical endurance
Immune System and Tissue Compatibility
The evaluation may examine:- Blood type
- Tissue antibodies
- Previous blood transfusions
- Pregnancy history
- Previous organ transplants
- Immune tests that can be used for comparison with the donor
Psychological and Social Evaluation
After lung transplantation, regular use of medications, frequent checkups and measures to prevent infection are required. For this reason, the evaluation may address topics such as:- Understanding the treatment plan
- Ability to keep taking medications
- Psychological state
- Cognitive state
- Available family or social support
- Access to the hospital
- Ability to keep up with checkups and the medication schedule
Pulmonary Rehabilitation and Preparing for Transplantation
- Muscle loss
- Weakness
- Reduced exercise capacity
- Limitations in activities of daily living
- Exercises tailored to the individual
- Breathing exercises
- Exercises to maintain muscle strength
- Nutritional support
- Adjustment of oxygen use
- Planning of activities of daily living
Why Is Nutritional Status Important?
- Muscle loss
- Increased risk of infection
- Delayed wound healing
- Weakness of the respiratory muscles
- The technical difficulty of the operation
- Breathing problems
- The risk of diabetes
- Heart and vascular risks
- Limited mobility
The Lung Transplantation Waiting List
- Be found suitable for transplantation
- Be followed up because it is considered too early for transplantation
- Be re-evaluated after certain modifiable risks have been reduced
- Be found to have a transplant risk that outweighs the expected benefit
- Clinical checkups
- Blood tests
- Pulmonary function tests
- Imaging
- Rehabilitation
- Nutritional assessments
How Is a Donor Lung Matched?
- Blood type compatibility
- Lung and chest cavity size
- Immune system characteristics
- Tissue antibodies
- Severity and urgency of the disease
- The time and distance over which the organ can be transported
- The medical characteristics of the donor lung
Single Lung and Double Lung Transplantation
Single Lung Transplantation
In single lung transplantation, one of the diseased lungs is removed and replaced with a lung from the donor. It may be considered for some patients with pulmonary fibrosis and emphysema. Factors that may influence the decision include:- The type of disease
- The person's age and general condition
- Infection risk
- Chest structure
- Pulmonary vascular pressures
- Donor organ availability
- The center's surgical approach
Double Lung Transplantation
In double lung transplantation, both diseased lungs are removed and two donor lungs are implanted. In diseases with chronic infection in both lungs, such as cystic fibrosis and advanced bronchiectasis, double lung transplantation is usually preferred. This is because an infected lung left behind could become a source of infection for the new transplanted lung. Double lung transplantation may also be considered in pulmonary hypertension and other advanced lung diseases. The decision between single and double transplantation is not based solely on the person's preference. The characteristics of the disease, surgical risk, organ availability and expected outcomes are evaluated together.Heart-Lung Transplantation
Heart-lung transplantation is the replacement of the heart together with both lungs. Today, it is considered only in selected patients. If heart problems caused by advanced lung disease have the potential to improve after the new lungs are implanted, double lung transplantation alone may be sufficient. If the heart has advanced, irreversible structural or functional disease, heart-lung transplantation may be considered.How Is Lung Transplant Surgery Performed?
- The chest cavity is accessed through an appropriate surgical incision.
- The bronchial and vascular connections of the diseased lung are prepared.
- The diseased lung is removed.
- The bronchial and vascular connections of the donor lung are made.
- Blood flow is restored and the function of the new lung is evaluated.
- In double lung transplantation, similar steps are performed on the other side.
- Drainage tubes are placed in the chest cavity and the surgical incision is closed.
Intensive Care After Lung Transplantation
- Ventilator support
- Heart and circulation monitoring
- Chest drains
- Intravenous medications
- Pain control
- Monitoring of kidney function
- Bleeding control
- Infection monitoring
- Starting immunosuppressive medications
What Is Primary Graft Dysfunction?
- Adjusting ventilator support
- Controlling fluid balance
- Circulatory support
- Investigating infection and other possible causes
- ECMO when necessary
Why Are Immunosuppressive Medications Used?
- Increased risk of infection
- Impaired kidney function
- High blood pressure
- Diabetes
- Osteoporosis
- Changes in blood lipids
- Certain nervous system side effects
- Increased risk of certain types of cancer
Organ Rejection After Lung Transplantation
Organ rejection occurs when the immune system mounts an immune response against the transplanted lung. Rejection does not always mean that the transplanted lung will be lost completely. Some episodes of rejection can be detected early and treated.

Acute Cellular Rejection
Acute cellular rejection occurs when immune cells react against the transplanted lung tissue. Although it is more common in the early period after transplantation, it can also develop in later years. Some patients may have no symptoms. Possible signs include:- Shortness of breath
- Cough
- Fever
- Fatigue
- A drop in oxygen levels
- Decreased lung function
Antibody-Mediated Rejection
Antibody-mediated rejection is a form of rejection associated with antibodies that develop in the recipient's immune system against donor tissues. The diagnosis is not based on a single test. Clinical status, lung function, antibody tests, imaging and pathology findings may be evaluated together. Depending on the person's condition, treatment may include medications and procedures that affect the immune system through different mechanisms.Chronic Lung Allograft Dysfunction
Permanent loss of function that develops in the transplanted lung over time may be evaluated under the heading of chronic lung allograft dysfunction, or CLAD. CLAD can present in different forms. In some patients, narrowing of the small airways predominates, while in others, stiffening of the lung tissue and loss of volume may be seen. Factors that may be associated with chronic loss of graft function include:- Recurrent acute rejection
- Antibody-mediated rejection
- Infections
- Stomach contents leaking into the airways
- Airway problems
- Irregular use of immunosuppressive medications
Risk of Infection After Lung Transplantation
Medications that suppress the immune system can reduce the body's defense against infections. Because the lungs are in direct contact with the outside environment, respiratory infections are particularly important. After transplantation, the following may occur:- Bacterial lung infections
- Viral infections
- Fungal infections
- Tuberculosis and other opportunistic infections
- Urinary tract infections
- Surgical wound infections
- Preventive medications
- Appropriate vaccination
- Hand hygiene
- Food safety
- Avoiding sources of infection
Airway Complications
The surgical connection created between the donor bronchus and the recipient's bronchus is closely monitored after transplantation. In this area, the following may develop:- Narrowing
- Separation at the connection site
- Softening of the bronchial wall
- Excessive healing tissue
- Infection
Other Possible Complications
In the early or late period after lung transplantation, the following may occur:- Bleeding
- Blood clots
- Heart rhythm disorders
- Impaired kidney function
- Diabetes
- High blood pressure
- Osteoporosis
- Nervous system problems
- Stomach and esophageal diseases
- Increased risk of certain types of cancer
- Wound healing problems
- Muscle loss
- Psychological difficulties
Bronchoscopy and Surveillance Biopsies
After lung transplantation, bronchoscopy may be used for:- Evaluating the airway connections
- Obtaining respiratory samples
- Investigating infection
- Taking lung biopsies to check for rejection
- Evaluating airway narrowing
Discharge from Hospital and Rehabilitation
The length of the hospital stay after lung transplantation is not the same for everyone. The function of the new lung, infection, rejection, muscle strength and other complications can affect the timing of discharge. Before discharge, the person and the family members who will support their care may be given education about:- Medication use
- Monitoring lung function
- Preventing infection
- Wound care
- Nutrition
- Exercise
- Symptoms to watch for
- The checkup schedule
Follow-Up After Lung Transplantation
Lung transplantation requires lifelong follow-up. Follow-up may include:- Clinical examination
- Pulmonary function tests
- Chest X-ray or computed tomography
- Blood tests
- Measurement of immunosuppressive medication levels
- Monitoring of kidney and liver function
- Infection assessments
- Bronchoscopy
- Assessment for organ rejection
- Appropriate cancer screening
- Bone health
- Metabolic assessments
Monitoring Lung Function at Home
Some patients may be asked to measure their lung function regularly at home using a portable spirometer. An unexplained drop in lung function values may be related to:- Organ rejection
- Infection
- Airway narrowing
- Fluid buildup
- Other lung problems
- New or worsening shortness of breath
- A marked drop in lung function
- Fever
- Increased cough or sputum
- A drop in oxygen levels
- Chest pain
- Marked fatigue
- Diarrhea or vomiting
- Decreased urine output
- Being unable to take medications
- Redness or discharge at the surgical wound
Daily Life After Lung Transplantation
- Taking medications regularly
- Paying attention to hand hygiene
- Avoiding cigarettes and tobacco smoke
- Eating safely prepared food
- Regular physical activity
- Maintaining a healthy body weight
- Sun protection
- Keeping up with dental and oral care
- Having recommended health screenings
- Not using medications or herbal products without supervision
Exercise After Lung Transplantation
- Walking
- Breathing exercises
- Strengthening the arm and leg muscles
- Balance exercises
- Endurance exercises
Life After Lung Transplantation
- Use of immunosuppressive medications
- Protection against infection
- Regular checkups
- Monitoring of lung function
- Assessment of organ rejection and graft function
- Health status before transplantation
- The underlying lung disease
- Age and physical resilience
- The characteristics of the donor organ
- Early complications
- Infections
- Organ rejection
- Chronic graft dysfunction
- Taking medications regularly
- Keeping up with the follow-up program





