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Systemic necrotizing vasculitides in severe alpha1-antitrypsin deficiency
P Mazodier1, A N Elzouki, M Segelmark
1Department of Medicine, Löwenströmska Hospital, Stockholm County, Sweden.
QJM : Monthly Journal of the Association of Physicians
|August 1, 1996
Summary
Severe alpha1-antitrypsin (AAT) deficiency is linked to systemic necrotizing vasculitis, often presenting with multi-organ involvement and a high mortality rate. Early recognition of AAT deficiency in vasculitis patients is crucial for timely intervention.
Area of Science:
- Medicine
- Genetics
- Immunology
Background:
- Systemic necrotizing vasculitis can be associated with severe alpha1-antitrypsin (AAT) deficiency.
- The PiZ phenotype or low plasma AAT levels indicate severe deficiency.
Purpose of the Study:
- To describe the clinical presentation and outcomes of patients with systemic vasculitis and severe alpha1-antitrypsin deficiency.
- To raise physician awareness of this underdiagnosed syndrome.
Main Methods:
- Retrospective review of eight patients with biopsy-verified systemic vasculitis and severe AAT deficiency from Swedish hospitals (1968-1992).
- Inclusion of six additional reported cases from the literature during the same period.
- Analysis of clinical findings, laboratory data, treatment, and outcomes for all 14 patients.
Main Results:
- The 14 patients presented with a median age of 48 years, involving a median of eight organs.
- Common manifestations included skin (100%), renal/joint (100%), emphysema (71%), and hepatic abnormalities (57%).
- The overall mortality rate was 64%, with renal failure being the primary cause of death.
Conclusions:
- Systemic vasculitis associated with severe AAT deficiency is a serious condition with high mortality.
- Physicians should consider AAT deficiency in patients with systemic vasculitis, particularly those with progressive disease, emphysema, or cirrhosis.
- Prompt recognition and early treatment are essential for improving patient outcomes.