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Review article: haemochromatosis
1University of British Columbia, Vancouver, Canada.
Alimentary Pharmacology & Therapeutics
|November 28, 2002
Summary
Hereditary hemochromatosis, a common iron overload disorder, requires early diagnosis for better outcomes. Phenotypic screening and liver biopsy aid management, especially in complex genetic cases.
Area of Science:
- Genetics
- Gastroenterology
- Internal Medicine
Background:
- Hereditary hemochromatosis is a common autosomal recessive iron overload disorder, primarily linked to HFE gene mutations.
- It's a complex genetic disease influenced by environmental and other genetic factors.
- Early diagnosis and phlebotomy therapy are crucial to prevent cirrhosis and improve outcomes.
Purpose of the Study:
- To review the diagnosis and management of hereditary hemochromatosis.
- To discuss the utility of genetic and phenotypic screening.
- To highlight the role of liver biopsy and transplantation in advanced disease.
Main Methods:
- Review of existing literature on hereditary hemochromatosis.
- Discussion of diagnostic approaches including genetic testing and phenotypic markers.
- Evaluation of management strategies, including phlebotomy and liver biopsy indications.
Main Results:
- The C282Y HFE mutation is common, but not all homozygotes develop iron overload.
- Phenotypic tests like transferrin saturation are effective for initial screening.
- Liver biopsy is essential for assessing cirrhosis, especially with high ferritin levels.
Conclusions:
- Early diagnosis of hereditary hemochromatosis improves patient survival and reduces morbidity.
- Phenotypic screening is a practical approach to identify individuals at risk.
- Liver biopsy and transplantation are critical for managing advanced disease, though transplantation outcomes are poorer.