Understanding Alpha-1 Antitrypsin Deficiency
Source: https://healthtalk.unchealthcare.org/alpha-1-antitrypsin-deficiency-how-to-spot-and-treat-it/
If you’ve been diagnosed with alpha-1 antitrypsin deficiency (AATD) or your healthcare provider suspects you may have it, you may wonder what it means and how it can affect your breathing. This inherited condition can increase the risk of lung disease and, in some cases, liver disease.
What Is Alpha-1 Antitrypsin Deficiency?
Alpha-1 antitrypsin deficiency is a genetic condition in which the liver does not produce enough functional alpha-1 antitrypsin, a protein that helps protect the lungs from inflammation-related damage. Without enough of this protein, lung tissue can become damaged over time, increasing the risk of emphysema, a type of chronic obstructive pulmonary disease (COPD).
What Are the Symptoms?
Some people with AATD have no symptoms, while others develop lung or liver problems. Symptoms may include:
Shortness of breath, especially during activity
Persistent cough
Wheezing
Frequent respiratory infections
Fatigue
Liver involvement may cause abdominal swelling, yellowing of the skin or eyes, or other signs of liver disease.
How Is AATD Diagnosed?
Your healthcare provider may recommend several tests, including:
Blood tests to measure alpha-1 antitrypsin levels
Genetic testing to identify changes in the SERPINA1 gene
Pulmonary function tests to evaluate lung function
Liver function tests to assess liver health
Testing may be recommended for people with unexplained COPD, emphysema, or certain liver conditions, as well as relatives of someone diagnosed with AATD.
How Is AATD Treated?
Although there is no cure for AATD, treatment can help manage symptoms and protect lung function. Options may include:
Augmentation therapy, which provides purified alpha-1 antitrypsin through intravenous infusions for eligible patients with lung disease
Inhalers to help manage breathing symptoms
Supplemental oxygen when needed
Pulmonary rehabilitation to improve exercise tolerance and quality of life
Treatment depends on the severity of the condition and whether the lungs, liver, or both are affected.
Living With AATD
Protecting your lungs and attending regular follow-up appointments can help manage AATD. You can support your health by:
Avoiding smoking and secondhand smoke
Limiting exposure to dust, fumes, and other lung irritants
Staying physically active as recommended
Keeping vaccinations up to date
Discussing genetic testing with family members and your healthcare provider
Frequently Asked Questions
Is AATD contagious?
No. AATD is an inherited genetic condition and cannot be spread from person to person.
Can AATD be cured?
There is currently no cure, but treatment can help manage symptoms and reduce the risk of further lung damage. Liver complications may require additional monitoring and care.
Can people with AATD develop COPD?
Yes. AATD increases the risk of developing emphysema and COPD, particularly among people who smoke. However, not everyone with AATD develops lung disease.
The Bottom Line
Alpha-1 antitrypsin deficiency is an inherited condition that can increase the risk of lung and liver disease. Early diagnosis, regular monitoring, and appropriate treatment can help protect lung function and manage complications. If you have unexplained breathing problems or a family history of AATD, talk to your healthcare provider about whether testing may be appropriate.
