How does alpha-1 antitrypsin deficiency affect lung health?

Question

Hello doctor,

My cousin is 29 years old and was recently diagnosed with alpha-1 antitrypsin deficiency after evaluation for persistent shortness of breath. He has never smoked but developed early signs of lung function impairment on pulmonary testing.

Doctors mentioned this is a genetic condition that can affect both the lungs and liver. Our family is concerned about long-term complications and whether other relatives should also get tested.

How does alpha-1 antitrypsin deficiency affect lung health?
What steps can help prevent disease progression?

Please help.

Thank you.

Answer 1

Hi,

Welcome to icliniq.com.

I have read your query and understand your concern.

Alpha-1 antitrypsin deficiency is a genetic condition in which the body lacks a key protective protein that normally prevents damage to the lungs. Without this protection, the air sacs in the lungs are gradually injured by normal inflammatory processes, leading to early development of emphysema (shortness of breath due to entrapped air).

This can happen even in people who have never smoked, which is why your cousin developed symptoms at a young age. Over time, this may lead to increasing breathlessness if not carefully managed.

The progression of lung disease can be slowed quite effectively with the right steps.

The most important is complete avoidance of smoking and even second-hand smoke, as this dramatically accelerates lung damage in such patients.
Regular use of prescribed inhalers, maintaining good physical activity as tolerated.
Staying updated with vaccinations like influenza and pneumococcal vaccines is very helpful in protecting lung function.
In some patients with significant deficiency, specific augmentation therapy is considered, which can help reduce the rate of decline.

Because this condition is inherited, it is advisable for close family members, especially siblings, to get tested. Early detection allows preventive measures to be started before symptoms appear. In a few families I have managed, early screening helped identify affected individuals who remained stable for years simply by avoiding risk factors and following medical advice.

The liver can also be involved because the abnormal protein may accumulate there. Most people do not develop severe liver disease, but periodic monitoring is recommended.

Hope I have addressed all of your queries and concerns.

Let me know if I can assist you further.

Thank you.