Specialist Referral for Iron Overload

Understanding the Condition

• The European Association for the Study of the Liver (EASL) 2022 guidelines state that patients with evidence of significant, unexplained iron overload should be referred for assessment by a specialist in iron disorders, typically hepatologists or gastroenterologists 1
• The American Association for the Study of Liver Diseases emphasizes that iron overload evaluation and management falls within the gastroenterology/hepatology domain 4

Diagnostic Evaluation

• The specialist will pursue HFE genetic testing for C282Y and H63D mutations to evaluate for hereditary hemochromatosis, and MRI with quantitative assessment of hepatic iron concentration to confirm and quantify iron overload 1, 2
• Evaluation for secondary causes of iron overload, including chronic liver diseases and hematologic disorders, will be performed if HFE testing is negative 4

Treatment Decisions

• If true iron overload is confirmed, therapeutic phlebotomy will be initiated, involving weekly or biweekly removal of 500 mL blood until ferritin reaches 50-100 μg/L 1, 4
• The phlebotomy protocol includes monitoring hematocrit/hemoglobin before each phlebotomy and checking ferritin every 10-12 phlebotomies 4

Critical Distinction: Iron Overload vs. Hyperferritinemia

• True iron overload (hemochromatosis, secondary iron accumulation) requires phlebotomy, whereas dysmetabolic hyperferritinemia and inflammatory hyperferritinemia do not 1, 4

Referral Considerations

• The referral to a hepatologist or gastroenterologist should be made promptly but is not emergent unless the patient has signs of cardiac involvement, advanced liver disease, or symptoms of end-organ damage 1, 4, 5