Patient's Query
Hello doctor,
I received my lab results, and the AAT level was 59 mg/dL, which is low. The genetic test came back with the ZZ genotype. I have been reading about it, and now I feel terrified because my aunt died young from emphysema, and I am only 38.
The shortness of breath has been getting worse, especially when I climb stairs or carry groceries. My spirometry showed an FEV1 of 62 percent at my last visit. I have never smoked in my life, so hearing the word "emphysema" feels unreal.
Is augmentation therapy something I should start soon?
How quickly does lung function decline in people with my genotype?
Also, should my kids get tested?
Please help.
Thank you.
Hello,
Welcome to icliniq.com.
I have gone through your query and understand your concern.
First, I want you to know that your worry is entirely understandable, but this is not a hopeless situation. You have a precise diagnosis, you are a lifelong non-smoker, and we have specific, evidence-based treatments and strategies for people in your situation.
An AAT (alpha-1 antitrypsin) level of 59 mg/dL with a ZZ genotype (homozygosity for the Z variant) confirms severe alpha-1 antitrypsin deficiency (a genetic disorder where the body doesn't produce enough alpha-1 antitrypsin protein). In simple terms, your natural lung protectant is low, so your lungs are more vulnerable to damage over time. The breathlessness on stairs and an FEV1 (forced expiratory volume) of around 62 percent fit with early to moderate obstruction from emphysema due to alpha-1.
A significant advantage in your favor is that you have never smoked. That alone dramatically slows the usual rate of decline compared with smokers with the same genotype.
Augmentation therapy, which involves IV (intravenous) Alpha-1 protein infusions, is specifically meant for people like you: confirmed severe deficiency (ZZ), evidence of emphysema on imaging and spirometry, and an FEV1 that is neither too high nor too low, typically in the range you are in now.
Starting therapy depends on a complete assessment, including your CT (computed tomography) scan pattern, spirometry trend over 6 to 12 months, symptoms, exercise capacity, and local availability and cost. With your genotype, age, and FEV1, augmentation therapy is something you should discuss seriously rather than postponing for years. It is not a cure, but its goal is to slow further loss of lung function, not reverse existing damage.
The rate of decline in lung function in ZZ individuals varies widely. On average, non-smokers with this genotype lose lung function much more slowly than smokers. Some remain relatively stable for many years, especially if they avoid smoke, occupational dust, and repeated infections, and if they stay vaccinated and receive early treatment for exacerbations.
What matters most for you is your personal trend, not the average curve. That is why we repeat spirometry regularly, usually once a year and sometimes more often in the beginning if we see a faster-than-expected decline; that strengthens the case for beginning or continuing augmentation.
Regarding your children, this is an inherited condition, so family testing is recommended. For children, we typically start with simple genetic testing rather than waiting for symptoms to appear. There is no rush for very young children, but knowing their status helps ensure they avoid smoking and other high-risk exposures as they grow. Testing does not mean they will become ill; it simply identifies whether they carry the same risk and may need closer follow-up.
Along with any decision about augmentation, there are several essential steps: never smoke and avoid even passive smoke, stay up to date with vaccinations (especially influenza and pneumococcal), maintain a healthy weight and regular moderate exercise, consider pulmonary rehabilitation, and seek early treatment if you notice increased cough, sputum, or breathlessness. These measures, done consistently, have a significant impact on alpha-1.
You are not your aunt's story. Medicine for alpha-1 has advanced, and you are starting from a much better position as a non-smoker with an early diagnosis. We will take this step by step: monitor your lung function trend, review your CT scan, discuss augmentation in detail, and create a clear plan for you, as well as, if you choose, genetic testing for your children.
I hope I have answered your question.
Let me know if I can assist you further.
Thank you.
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Answered byDr. Amandeep Singh Arneja
Medically reviewed byiCliniq medical review team
Same symptoms don't mean you have the same problem. Consult a doctor now!
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