Idiopathic pulmonary fibrosis is scarring or thickening of the lungs without a known cause.
Idiopathic diffuse interstitial pulmonary fibrosis; IPF; Pulmonary fibrosis; Cryptogenic fibrosing alveolitis; CFA; Fibrosing alveolitis; Usual interstitial pneumonitis; UIP
Doctors do not know what causes idiopathic pulmonary fibrosis (IPF) or why some people get it. Idiopathic means the cause is not known. The condition may be due to the lungs responding to an unknown substance or injury. Genes may play a role in developing IPF. The disease occurs most often in people between 50 and 70 years old.
When you have IPF, your lungs become scarred and stiffened. This makes it hard for you to breathe. In some people, IPF gets worse quickly over months or a few years. In others, IPF worsens over a much longer time.
The health care provider will perform a physical exam and ask about your medical history. You will be asked whether you have been exposed to asbestos and if you have been a smoker.
The physical exam may find that you have:
Patients with idiopathic pulmonary fibrosis have abnormal breath sounds called crackles. Patients with advanced disease may have blue-colored skin (cyanosis) around the mouth or in the fingernails due to low oxygen.
Examination of the fingers and toes may show abnormal enlargement of the fingernail bases (clubbing).
Tests that help diagnose idiopathic pulmonary fibrosis include the following:
There is no known cure exists for IPF.
Treatment is aimed at relieving symptoms:
Making home and lifestyle changes can help to manage breathing symptoms. If you or any family members smoke, now is the time to stop right away.
Some patients with advanced pulmonary fibrosis may need a lung transplant.
You can ease the stress of illness by joining a support group. Sharing with others who have common experiences and problems can help you not feel alone.
These organizations are good resources for information on lung disease:
Some patients may improve or stay stable for a long time with or without treatment. Most people get worse, even with treatment.
Call your health care provider promptly if you have any of the following::
American Thoracic Society (ATS), European Respiratory Society (ERS), Japanese Respiratory Society (JRS), and Latin American Thoracic Association (ALAT). Idiopathic pulmonary fibrosis: evidence based guideline for diagnosis and management. Am J Respir Crit Care Med. 2011; 183:788-824.
Raghu G. Interstitial lung disease. In: Goldman L, Schafer AI, eds. Goldman's Cecil Medicine. 24th ed. Philadelphia, Pa.: Elsevier Saunders; 2011:chap 92.
Selman M, Morrison LD, Noble PW, King TE Jr. Idiopathic interstitial pneumonias. In: Mason RJ, Broaddus VC, Martin TR, et al., eds. Murray and Nadel's Textbook of Respiratory Medicine. 5th ed. Philadelphia, Pa.: Elsevier Saunders; 2010:chap 57.