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[Sideroblastic anemia after prolonged linezolid therapy]
Tsunayuki Kakimoto1, Tomonori Nakazato, Reiko Miura
1Department of Hematology, Yokohama Municipal Citizen's Hospital.
[Rinsho Ketsueki] the Japanese Journal of Clinical Hematology
|December 3, 2008
Summary
Prolonged linezolid antibiotic therapy can cause rare sideroblastic anemia. This case highlights a potential complication, with hemoglobin levels recovering after discontinuing linezolid.
Area of Science:
- Hematology
- Infectious Diseases
- Oncology
Background:
- Linezolid is a crucial antibiotic for Gram-positive infections.
- Prolonged use (>2 weeks) may lead to reversible bone marrow suppression, including anemia and thrombocytopenia.
Observation:
- A laryngeal cancer patient developed sideroblastic anemia during MRSA abscess treatment with linezolid.
- Hemoglobin dropped from 12.5 g/dL to 5.9 g/dL over two months.
- Bone marrow examination revealed ringed sideroblasts.
Findings:
- Discontinuation of linezolid led to a gradual increase in hemoglobin levels.
- This suggests a direct link between linezolid therapy and the development of sideroblastic anemia.
Implications:
- This case underscores the importance of monitoring blood counts during extended linezolid treatment.
- Awareness of rare complications like sideroblastic anemia is crucial for clinicians.
- Further research may be needed to elucidate the mechanisms of linezolid-induced myelosuppression.
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