Objective: To review the topic of alpha-1 antitrypsin (AAT) deficiency.
Method: Narrative literature review.
Results: Much work has been carried out on this condition with many questions being answered but still further questions remain.
Discussion and conclusions: AAT deficiency is an autosomal co-dominantly inherited disease which affects the lungs and liver predominantly. The clinical manifestations, prevalence, genetics, molecular pathophysiology, screening and treatment recommendations are summarised in this review.
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