Please verify your email address to receive email notifications.

Enter your email address

We have sent you a verification email. Please check your inbox and spam folder.

Unable to send verification, please refresh and try again later.

  • Q&A with Australian Health Practitioners

    What is the difference between COPD and emphysema?

    Related Topics
    Chronic Obstructive Pulmonary Disease (COPD) Respiratory Health
    Are they two separate conditions? Is one a subtype of the other?
    • 1 answer
    • Prof Michael Abramson
    answer this question

  • Find a professional to answer your question

  • 1

    Agree

    4

    Thanks

    Prof Michael Abramson

    Public Health Physician, Respiratory & Sleep Medicine Physician

    Chronic Obstructive Pulmonary Disease is the approved term that includes conditions like chronic bronchitis and emphysema.  COPD is defined by abnormal lung function tests showing evidence of fixed airways obstruction.  The Global initiative for Obstructive Lung Disease (GOLD) currently defines this a ratio of the Forced Expiratory Volume in 1 second (FEV1) to the Forced Vital Capacity (FVC) of less than 70% after a dose of a bronchodilator like Ventolin.  This definition is currently under review and may change in the future.

    On the other hand, emphysema is defined by abnormal structure in the lung, specifically destruction of the terminal airspaces.  The alveoli (tiny air sacs) in which gas exchange occurs are destroyed and form larger flabby cysts.  If severe, these can be seen on a chest x-ray.  However often more sophisticated tests such as a CT scan and/or measurement of gas transfer are required to make the diagnosis.

    Almost all patients with generalised emphysema will have COPD.  However not all patients with COPD will have emphysema.  Some will have other conditions like chronic bronchitis.  Further information on these conditions is available at the Australian Lung Foundation website http://www.lungfoundation.com.au/lung-information/patient-educational-material/fact-sheets/78-breathe-easier-your-guide-to-copd

    Reply to this post
     · 
    Report
answer this question

You must be a Health Professional to answer this question. Log in or Sign up .

You may also like these related questions

Related Fact Sheets
Related Questions

Empowering Australians to make better health choices