Lung Transplant

A lung transplant is an operation that removes a failing lung and puts a healthy donor lung in its place. The lungs take oxygen into the blood and clear carbon dioxide, and when disease scars, narrows or destroys the lung tissue this exchange fails, leaving a person increasingly breathless and dependent on oxygen. When no treatment can restore enough lung function, replacing the lung is the only lasting option. A transplant may involve a single lung or both lungs: a single lung transplant can be enough for some scarring diseases, while a double lung transplant is preferred for conditions such as cystic fibrosis or where infection affects both lungs. The donor lung almost always comes from a deceased donor whose family has chosen to donate, and it is carefully matched to the recipient by blood group and size so that it fits and is accepted as well as possible.

A lung transplant is considered for advanced, end-stage lung disease that continues to worsen despite the best medical treatment, when life expectancy and quality of life are seriously limited and other options have been exhausted. The conditions that most often lead to transplant include chronic obstructive pulmonary disease and emphysema, scarring diseases of the lung such as idiopathic pulmonary fibrosis, cystic fibrosis and bronchiectasis with repeated infection, pulmonary hypertension that strains the heart, and inherited conditions such as alpha-1 antitrypsin deficiency. It is usually discussed once a person remains severely breathless or dependent on oxygen despite full treatment. The decision is made by a transplant team after a detailed assessment confirms that the lungs cannot recover, that the rest of the body is strong enough for major surgery and lifelong medication, and that transplant offers a real benefit. Timing matters: referral while a patient is still well enough to come through the operation gives the best chance of success.

A lung transplant is performed under general anaesthesia, so the patient is fully asleep and feels nothing. The surgeon removes the diseased lung and places the donor lung, reconnecting the main airway and the blood vessels that carry blood to and from the lung with careful, precise stitching. In a single lung transplant one lung is replaced; in a double lung transplant both are replaced, usually one after the other. For some operations, particularly when both lungs are replaced or the heart is under strain, a heart-lung bypass or a similar support machine takes over the work of the heart and lungs during the surgery, keeping the blood oxygenated while the new lung is connected. The operation commonly takes from about 4 to 12 hours, depending on whether one or both lungs are transplanted and on the complexity of the case. Afterwards the recipient is cared for in intensive care, often supported by a breathing machine for a short period, while the new lung begins to take over and the team watches closely over the critical early days.

A candidate for lung transplant goes through a thorough evaluation to confirm that the lungs are failing, that transplant is the right step, and that the body can withstand the operation and lifelong treatment. This includes detailed breathing and exercise tests, imaging of the chest, blood tests and tissue typing, and assessments of the heart, kidneys and other organs, supported by nutritional, psychological and dental review and a transplant coordinator. Being a healthy weight, stopping smoking well in advance, and taking part in a breathing rehabilitation programme to build strength are important parts of getting ready. Transplant is generally not advised when cancer is active, when there is a severe uncontrolled infection or advanced disease of another major organ, in active smoking or substance addiction, or when a patient could not keep to the demanding medication and follow-up afterwards. Once accepted, the patient is placed on a waiting list and matched to a suitable donor lung by blood group and size. For international patients much of the early assessment can begin remotely, with records, scans and breathing tests reviewed before travel.

Recovery from a lung transplant is steady, structured and closely supervised. The recipient spends the first days in intensive care, often with breathing support at first, then moves to a specialised ward, and most people are discharged from hospital within about 3 to 4 weeks. Immunosuppressive medicines that stop the body rejecting the new lung are started straight away and must be taken for life, with the doses adjusted by frequent blood tests in the early weeks. Breathing rehabilitation, with guided exercise and physiotherapy, is a central part of recovery and helps the new lung work to its full capacity. Because the early weeks need such close monitoring, patients are usually advised to remain in the destination city for a few months after surgery so the team can check lung function, fine-tune the medication, watch for early rejection or infection and confirm the lung is stable before a long flight. Crowded places are best avoided in the first months while the immune system is suppressed. Once home, follow-up continues with a local doctor and remote review by the transplant team, and international patient services commonly provide interpreters and coordinators so language is never a barrier. Most recipients return to a much more active life over the following months.

A lung transplant is a major operation, and although modern transplant programmes achieve good results that transform breathing and quality of life, it carries real risks that the team works hard to manage. Early concerns include bleeding, infection, and problems with how the new lung settles and works in the first days, which is why the period in intensive care is so closely supervised. Rejection of the new lung is possible, both early and later, and is the reason immunosuppressive medication is essential and lifelong; because these medicines lower the body's defences, they raise the risk of infection, so the balance is monitored carefully and protective measures are taken. Over the longer term the team watches for a gradual narrowing of the small airways that can affect a transplanted lung, which regular breathing tests are designed to catch early. The lungs are particularly exposed to the outside world through the air, so infection precautions remain important. With an experienced team, faithful medication and regular follow-up, a lung transplant offers most patients a lasting and often dramatic improvement in their ability to breathe and live actively.