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Cerebrovascular complications of L-asparaginase therapy

Department of Neurology, University of Arizona Health Sciences Center, Tucson, AZ.

L-Asparaginase, commonly used in combination chemotherapy in the treatment of acute lymphoblastic leukemia, has been associated with hemorrhagic and thrombotic cerebrovascular events. Thrombosis of the cerebral veins or dural sinuses is common, and may be associated with either hemorrhage or infarction. This syndrome generally occurs after a few weeks of therapy, and may occur after L-asparaginase therapy is completed. Complications appear to result from depletion of plasma proteins involved in coagulation and fibrinolysis. We now report two additional cases of cerebrovascular complications associated with L-asparaginase therapy. We review the previously reported cases and discuss the clinical presentation, pathophysiology, and suggested treatment of this syndrome.

Address correspondence and reprint requests to Dr. Feinberg, Department of Neurology, University of Arizona Health Sciences Center, Tucson, AZ 85724.

Received January 29, 1987. Accepted for publication in final form March 10, 1987.

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