How to preserve lung function in AAT deficiency?

Question

Hi doctor,

I am a 39-year-old female, and I was just diagnosed with alpha-1 antitrypsin deficiency after experiencing years of coughing and shortness of breath.

My AAT level is 42 mg/dL. I have never smoked, and my CT scan shows some early signs of emphysema.

Is this condition common in women, and does the progression tend to be slower for non-smokers like me?
What steps can I take to preserve my lung function?

Please guide.

Answer 1

Hi,

Welcome to icliniq.com.

I read your query and understand your concerns.

Thank you for sharing your diagnosis. Alpha-1 antitrypsin (AAT) deficiency is a genetic condition affecting the lungs (and sometimes the liver). Let me address your questions in detail:

Alpha-1 deficiency affects both men and women equally because it is an inherited autosomal condition. However, symptoms and severity can vary widely depending on genetics, environmental exposures, and lifestyle factors.

Smoking is the strongest risk factor for the rapid progression of lung damage in alpha-1 deficiency. Non-smokers generally have much slower progression and often retain better lung function over time. Avoiding second-hand smoke and air pollution is equally important.

Investigations to be done:

Pulmonary function tests (spirometry and diffusion lung capacity for carbon monoxide) should be performed every 6 to 12 months. Periodic CT (computed tomography) scans only if symptoms worsen or your pulmonologist recommends it.
Liver function tests.

Consult a pulmonologist (ideally with experience in AAT deficiency) to discuss augmentation therapy. Review vaccination status and PFT schedule.

Seek urgent care if you develop a fever, worsening breathlessness, or increased sputum production.

I suggest the following for you.

Avoid all lung irritants: No smoking (including second-hand exposure). Avoid dust, fumes, strong cleaning chemicals, and air pollution. Consider using air purifiers at home.
Vaccinations: An annual influenza vaccine and pneumococcal vaccine (both types) are essential to reduce lung infections.
Regular medical follow-up: Pulmonary function tests (PFTs) every 6 to 12 months. Prompt treatment of any chest infections with antibiotics when indicated.
Augmentation therapy: Since your AAT level is 42 mg/dL (severely deficient) and you already have emphysema on CT, you may be a candidate for AAT replacement therapy (intravenous weekly infusions of purified AAT). This therapy slows progression but does not reverse existing damage. Discuss eligibility with a pulmonologist specializing in alpha-1 deficiency.
Pulmonary rehabilitation: Exercise programs tailored for lung health can improve breathing capacity and stamina.
Healthy lifestyle: Try to maintain an ideal weight and eat a balanced diet.

I hope this answers your query. Feel free to reach out anytime.

Thank you.