Cystic Fibrosis and the Respiratory SystemFibrosis Quística y el Aparato Respiratorio

Cystic Fibrosis and the Respiratory System

How does cystic fibrosis affect the respiratory system?

Cystic fibrosis (CF) is an inherited disease marked by an abnormality in the body's salt-, water-, and mucus-making cells. Although CF can't be cured and gets worse over time, improved treatments have helped people with the disease live significantly longer. Most people with CF live into their late 30s, and many into their 50s. Some CF patients now live into their 70s. 

CF causes thick mucus to build up and clog certain parts of the body like the lung. The buildup is caused by an abnormal gene. called the cystic fibrosis transmembrane regulator (CFTR). CFTR controls the flow of water and  salt in and out of the body's cells. Changes cause mucus to become thickened and sticky. This first affects the  small airways in the lungs, but eventually it can affect all airways.

Children with CF may develop lung infections, because bacteria that are normally cleared from the lungs remain in the thickened mucus. Many of these lung infections are chronic. The most common bacteria that cause lung infections in people with CF is Pseudomonas aeruginosa.

Children with CF also can have problems in their upper respiratory tract. They can develop nasal polyps. These are small growths of tissue from the lining of the nose that extend into the nasal cavity. Sometimes these polyps must be taken out by a doctor. Children with CF also frequently have sinus infections.

A child with CF may have these symptoms, because of how CF affects the respiratory system: 

  • Chronic cough

  • Coughing up blood

  • Collapsed lung

  • Clubbing, The rounding and enlargement of the fingers and toes.

  • Heart enlargement

  • Nasal polyps. These are fleshy growths in the nose.

  • Sinusitis. Inflamed nasal sinuses.

 
Related Items

The third-party content provided in the Health Library of phoebeputney.com is for informational purposes only and is not designed to diagnose or treat a health problem or disease, or replace the professional medical advice you receive from your physician. If you or your child has or suspect you may have a health problem, please consult your primary care physician. If you or your child may have a medical emergency, call your doctor or 911 or other emergency health care provider immediately in the United States or the appropriate health agency of your country. For more information regarding site usage, please visit: Privacy Information, Terms of Use or Disclaimer.