Cerebral venous thrombosis associated with epoetin alfa therapy.
BACKGROUND
Cerebral venous thrombosis is a rare complication of polycythemia. To our knowledge, epoetin alfa-induced polycythemia has not previously been reported in association with cerebral venous thrombosis.


METHODS
A 37-year-old patient who was receiving peritoneal dialysis and epoetin alfa (Epogen) therapy presented with a several-day history of worsening headache, and a neuroimaging scan demonstrated thrombosis of the sagittal and transverse sinus. Epoetin alfa therapy, which had been initiated 3 months earlier according to an institutional protocol, was associated with a problematic increase in hematocrit values.


CONCLUSIONS
Headache should raise the suspicion of cerebral venous thrombosis in patients who are being treated with epoetin alfa, particularly in the presence of elevated hematocrit values. Monitoring hematocrit parameters in accordance with "standard guidelines" is recommended.
Finelli
P F
PF
Department of Neurology, Hartford Hospital, Conn. 06102, USA.
Carley
M D
MD
D000328:Adult; D000925:Anticoagulants / Q000627:therapeutic use; D000068817:Epoetin Alfa; D004921:Erythropoietin / Q000009:adverse effects*; D005260:Female; D006397:Hematinics / Q000009:adverse effects*; D006493:Heparin / Q000627:therapeutic use; D006801:Humans; D002542:Intracranial Embolism and Thrombosis / Q000000981:diagnostic imaging / Q000209:etiology* / Q000473:pathology; D008279:Magnetic Resonance Imaging; D011086:Polycythemia / Q000139:chemically induced / Q000000981:diagnostic imaging / Q000473:pathology; D011994:Recombinant Proteins; D014057:Tomography, X-Ray Computed
D000925:Anticoagulants; D006397:Hematinics; D011994:Recombinant Proteins; D004921:Erythropoietin; D000068817:Epoetin Alfa; D006493:Heparin