ACG Clinical Guideline: Hereditary Hemochromatosis.
Level 5 - mechanism / opinion, no new human data
Clinical practice guideline and expert consensus review
PubMed 31335359 · doi:10.14309/ajg.0000000000000315
What was done
The American College of Gastroenterology (ACG) established clinical practice recommendations addressing molecular diagnostic testing, noninvasive assessment of hepatic iron, differential diagnosis, and treatment approaches for hereditary hemochromatosis (HH).
What was found
The abstract reports summary recommendations and qualitative findings without reporting raw numerical effect sizes: - Molecular testing for HFE mutations (C282Y homozygosity versus other genotypes) establishes the diagnosis in most patients. - Noninvasive MRI T2* testing quantifies hepatic iron deposition and eliminates routine liver biopsy for most patients. - A serum ferritin level <1,000 ng/mL at diagnosis identifies patients with a low risk of advanced hepatic fibrosis. - Elevated ferritin in patients without C282Y homozygosity or C282Y/H63D compound heterozygosity is more frequently attributable to nonalcoholic fatty liver disease or alcoholic liver disease. - Phlebotomy remains the primary standard of care, with iron chelating agents serving as options in selected patients. - Genetic testing for rare, non-HFE variants is available but costly and not useful in most routine settings.
Why it matters
This guideline clarifies noninvasive staging pathways and highlights the high prevalence of secondary causes for hyperferritinemia, helping clinicians avoid unnecessary liver biopsies or rare genetic testing.
Limits
The abstract describes consensus recommendations and diagnostic principles without providing numerical diagnostic metrics (such as sensitivity, specificity, or predictive values) or quantitative outcomes for specific therapies. Specific search methodology and cohort sample sizes are not detailed in the abstract text.
Cited by
- supports Periodic blood donation helps manage iron overload in people with hemochromatosis.