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respiratory

Alpha-1 Antitrypsin Deficiency

A genetic condition causing low levels of a protective protein, leading to early-onset lung and liver disease.

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Overview

Alpha-1 antitrypsin deficiency (AATD) is an inherited genetic condition where the body doesn't produce enough of a protein called alpha-1 antitrypsin, which protects the lungs from inflammation. Without this protection, the lungs are vulnerable to damage, leading to early-onset emphysema and COPD, especially in smokers. It can also cause liver disease because the abnormal protein accumulates in the liver. AATD is often undiagnosed or misdiagnosed as asthma or COPD.

Symptoms

Common Symptoms

  • Shortness of breath (especially with exertion)
  • Chronic cough and phlegm
  • Wheezing
  • Recurring respiratory infections
  • Fatigue
  • Rapid heartbeat
  • Unintentional weight loss
  • Liver symptoms: jaundice, abdominal swelling, fatigue
  • Often misdiagnosed as asthma or COPD — a blood test can diagnose AATD

Diagnosis

Diagnosis typically involves clinical evaluation, medical history, blood tests, and appropriate imaging studies. A healthcare provider will assess symptoms, order relevant laboratory work, and may refer to a specialist for confirmation.

Treatments

Treatment depends on the underlying cause and severity. Options may include medication, lifestyle modifications (diet, exercise, stress management), and ongoing monitoring. Always work with a qualified healthcare provider to develop an appropriate treatment plan.

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