Indications for Phlebotomy in Hemochromatosis
Primary Indications for Phlebotomy
- The American Association for the Study of Liver Diseases recommends phlebotomy in patients with confirmed hemochromatosis (HFE gene mutations, particularly C282Y homozygotes) with evidence of iron overload 3, 4
- Phlebotomy is indicated in patients with non-HFE iron overload who have elevated hepatic iron concentration 4
- Patients with end-organ damage due to iron overload are candidates for phlebotomy 4
- The European Association for the Study of the Liver suggests phlebotomy in patients with elevated serum ferritin without significant liver disease (ALT, AST elevation) but with ferritin <1000 μg/L 3
Phlebotomy Protocol
- Weekly or biweekly phlebotomy (400-500 mL) until target ferritin level is reached is recommended by the American Association for the Study of Liver Diseases 5, 6
- The target ferritin level for induction phase is <50 μg/L, as suggested by the European Association for the Study of the Liver 5, 3
- Monitoring hemoglobin before each phlebotomy session is crucial, and reducing frequency if hemoglobin falls below 12 g/dL is advised by the American Association for the Study of Liver Diseases 6
- Discontinuing phlebotomy if hemoglobin falls below 11 g/dL is recommended by the European Association for the Study of the Liver 6
Special Considerations
- In elderly patients, more relaxed ferritin targets may be appropriate during maintenance phase, with targets of <200 μg/L for women and <300 μg/L for men, as suggested by the American Association for the Study of Liver Diseases 5
- Transferrin saturation should be monitored, although evidence-based target levels are lacking, according to the European Association for the Study of the Liver 5
- Avoiding iron supplementation and iron-fortified foods is recommended by the American Association for the Study of Liver Diseases 5
- Avoiding vitamin C supplements, especially before iron depletion, is advised by the European Association for the Study of the Liver 5, 7