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Bronchiectasis

Acquired bronchiectasis; Congenital bronchiectasis; Chronic lung disease - bronchiectasis

Bronchiectasis is a disease in which the large airways in the lungs are damaged. This causes the airways to become permanently wider.

Bronchiectasis can be present at birth or infancy, which is rare, or develop later in life.

Causes

Bronchiectasis is often caused by inflammation or an infection of the airways that keeps coming back.

Sometimes it begins in childhood after having a severe lung infection or inhaling a foreign object. Breathing in food particles can also lead to this condition.

Other causes of bronchiectasis can include:

  • Cystic fibrosis, a disease that causes thick, sticky mucus to build up in the lungs
  • Autoimmune disorders, such as rheumatoid arthritis, Sjögren syndrome, or inflammatory bowel disease
  • Allergic lung diseases
  • Leukemia and related cancers
  • Immune deficiency syndromes
  • Primary ciliary dyskinesia (another congenital disease)
  • Infection with non-tuberculous mycobacteria
  • As a complication of bronchiolitis obliterans
  • Asthma or chronic obstructive lung disease (uncommon)

Symptoms

Symptoms develop over time. They may occur months or years after the event that causes the bronchiectasis.

Long-term (chronic) cough with large amounts of foul smelling sputum is the main symptom of bronchiectasis. Other symptoms may include:

Exams and Tests

Your health care provider will perform a physical exam. When listening to the chest with a stethoscope, your provider may hear small clicking, bubbling, wheezing, rattling, or other sounds, usually in the lower lungs.

Tests that may be done include:

Treatment

Treatment is aimed at:

  • Reducing infections and sputum
  • Relieving airway blockage
  • Preventing the problem from becoming worse
  • Treating the underlying cause (for example modulator therapy for people with cystic fibrosis)

Daily drainage to remove sputum is part of treatment. A respiratory therapist can show the person coughing exercises that will help.

Medicines are often prescribed. These include:

  • Antibiotics to treat infections
  • Bronchodilators to open up airways
  • Expectorants to help loosen and cough up thick sputum

Surgery to remove (resect) the lung may be helpful if medicine does not work and the disease is in a small area, or if the person has a lot of bleeding in the lungs. It is more commonly considered if there is no genetic or acquired predisposition to bronchiectasis (for example, more likely to consider if there is bronchiectasis in one segment of the lung only because of prior obstruction).

In severe cases, lung transplantation might be needed.

Outlook (Prognosis)

The outlook depends on the specific cause of the disease. With treatment, most people live without major disability and the disease progresses slowly.

Possible Complications

Complications of bronchiectasis may include:

  • Cor pulmonale
  • Coughing up blood
  • Low oxygen levels (in severe cases)
  • Recurrent pneumonia
  • Depression

When to Contact a Medical Professional

Contact your provider if:

  • You have chest pain or shortness of breath that gets worse
  • There is a change in the color or amount of phlegm you cough up, or if it is bloody
  • Other symptoms get worse or do not improve with treatment

Prevention

You can reduce your risk by promptly treating lung infections.

Childhood vaccines a yearly flu vaccine, and COVID-19 vaccines help reduce the chance of some infections. Avoiding upper respiratory infections, smoking, and pollution may also reduce your risk of getting this infection.

Open References

References

Chang AB, Redding GJ. Bronchiectasis and chronic suppurative lung disease. In: Bush A, Deterding R, Li AM, et al, eds. Kendig and Wilmott's Disorders of the Respiratory Tract in Children. 10th ed. Philadelphia, PA: Elsevier; 2024:chap 44.

O'Donnell AE. Bronchiectasis, atelectasis, and cavitary or cystic lung diseases. In: Goldman L, Cooney KA, eds. Goldman-Cecil Medicine. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 78.

Solomon GM, Chan ED. Bronchiectasis. In: Broaddus VC, Ernst JD, King TE, et al, eds. Murray and Nadel's Textbook of Respiratory Medicine. 7th ed. Philadelphia, PA: Elsevier; 2022:chap 69.

  • Lungs

    Lungs - illustration

    The major features of the lungs include the bronchi, the bronchioles and the alveoli. The alveoli are the microscopic blood vessel-lined sacks in which oxygen and carbon dioxide gas are exchanged.

    Lungs

    illustration

  • Respiratory system

    Respiratory system - illustration

    Air is breathed in through the nasal passageways, travels through the trachea and bronchi to the lungs.

    Respiratory system

    illustration

  • Lungs

    Lungs - illustration

    The major features of the lungs include the bronchi, the bronchioles and the alveoli. The alveoli are the microscopic blood vessel-lined sacks in which oxygen and carbon dioxide gas are exchanged.

    Lungs

    illustration

  • Respiratory system

    Respiratory system - illustration

    Air is breathed in through the nasal passageways, travels through the trachea and bronchi to the lungs.

    Respiratory system

    illustration

 

Review Date: 8/19/2024

Reviewed By: Allen J. Blaivas, DO, Division of Pulmonary, Critical Care, and Sleep Medicine, VA New Jersey Health Care System, Clinical Assistant Professor, Rutgers New Jersey Medical School, East Orange, NJ. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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