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  • Title: [Pancytopenia related to low-dose methotrexate: study of five cases and review of the literature].
    Author: Serraj K, Federici L, Maloisel F, Alt M, Andrès E.
    Journal: Rev Med Interne; 2007 Sep; 28(9):584-8. PubMed ID: 17451848.
    Abstract:
    PURPOSE: The aim of this study is to report personal experience of pancytopenia related to low-dose methotrexate and to review the literature. METHODS: We included retrospectively all cases of pancytopenia related to low-dose methotrexate (<25 mg/week), followed between January 1997 and December 2006, in the university hospital of Strasbourg, France. RESULTS: Five women, mean age 75.6 years, were included in the present study. Clinical manifestations included: symptomatic anemia (n=4), infection (n=3) and hemorrhagic manifestations (n=2); one patient had no feature. Mean hemoglobin concentration was 8,8 g/dl; mean white cell and platelet counts were 1,500 /mm(3) and 16,000 /mm(3), respectively. Potential risk factors were identified in all patients: renal failure and low serum albumin levels (n=5), anti-inflammatory drug intake (n=2), folate deficiency (n=4) and cobalamin deficiency (n=1). One patient died of septic and hemorrhagic cerebral complications. CONCLUSION: Pancytopenia related to tow-dose methotrexate is a rare but life-threatening disorder. Search and prevention of potential risk factors are required in all patients; determination of MTHFR genotype may be of several interests as folate supplementation.
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