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Key current clinical issues in alpha-1 antitrypsin deficiency
1Department of Pulmonary and Critical Care Medicine, A90, The Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland OH 44195, USA. stollej@ccf.org.
Insights
Alpha-1 antitrypsin deficiency (AATD) is under-recognized. New standards recommend wider testing and consider augmentation therapy for patients with airflow obstruction, improving AATD diagnosis and care.
Area of Science:
- Pulmonology
- Genetics
- Internal Medicine
Background:
- Alpha-1 antitrypsin deficiency (AATD) is a prevalent genetic disorder often overlooked.
- Respiratory therapists play a crucial role in managing AATD.
- Recent international guidelines address AATD diagnosis and management.
Purpose of the Study:
- To summarize the international evidence-based standards for AATD diagnosis and management.
- To highlight recommendations for increased AATD screening.
- To review evidence on the efficacy of intravenous AATD augmentation therapy.
Main Methods:
- Review of an international evidence-based standards document.
- Analysis of evidence regarding the clinical efficacy of intravenous AAT. augmentation therapy.
- Synthesis of recommendations for AATD diagnosis and treatment.
Main Results:
- The standards document advocates for broader AATD testing to benefit more patients.
- Evidence suggests clinical efficacy of AAT augmentation therapy, particularly in moderate airflow obstruction.
- Intravenous augmentation therapy is recommended in specific clinical situations.
Conclusions:
- Increased AATD screening is recommended to identify affected individuals.
- Intravenous augmentation therapy is supported by current evidence for specific patient groups.
- Adherence to these standards can improve outcomes for individuals with AATD.
Abstract:
Alpha-1 antitrypsin deficiency is a common but under-recognized condition on which respiratory therapists can have a large impact. A key recent development is the issuance of an international evidence-based standards document regarding diagnosis and management of individuals with alpha-1 antitrypsin deficiency. This report summarizes that standards document, which recommends more widespread testing for alpha-1 antitrypsin deficiency, in order to extend the benefits of diagnosis to individuals found to have alpha-1 antitrypsin deficiency. An important aspect of the standards document is that evidence regarding the clinical efficacy of intravenous alpha-1 antitrypsin augmentation therapy is reviewed. Though no definitive support from a randomized clinical trial is available, the weight of evidence favors the clinical efficacy of alpha-1 antitrypsin augmentation therapy, at least in individuals with moderate degrees of established airflow obstruction. On that basis the standards document recommends intravenous augmentation therapy in specified clinical circumstances.
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