| Summary: | Abstract Background Central nervous system involvement is rarely described in eosinophilic granulomatosis with polyangiitis (EGPA) and occurs in 5–9% of patients. Among central nervous system manifestations, cerebral infarctions are the most common. To the best of our knowledge, a recurrent stroke in patients with EGPA without cardiac risk factors during maintenance therapy so far has not been described. Case presentation A previously healthy 57-year-old female during the course of 1 year developed asthma, sinusitis, polyneuropathy, muscle weakness, and rash followed by fatigue, myalgia, arthralgia, and fever. After an initial diagnostic evaluation, elevated values of eosinophils, liver enzymes, creatine kinase, lactate dehydrogenase, and inflammatory markers (sedimentation rate and C-reactive protein) were found, and renal impairment was detected. On the third day of hospitalization, she developed left-sided hemiparesis due to an ischemic stroke in the right basal ganglia. She has been diagnosed with EGPA, and oral corticosteroid, immunosuppressive, and antiplatelet therapy were applied. Despite potent treatment and initial recovery, a few weeks later, she developed recurrent ischemic stroke in the left hemisphere and pulmonary embolism as rare and potentially severe complications of EGPA. Assuming that complete disease remission had not been established previously, oral prednisone was initially substituted with intravenous methylprednisolone pulses. During follow-up, immunosuppressive therapy was slowly discontinued, oral corticosteroid therapy was reduced to a maintenance dose, and thromboembolic events were well controlled by oral anticoagulant therapy. Conclusion Anticoagulant therapy, in addition to immunosuppressive maintenance therapy, should be considered in any EGPA patient who has had an ischemic stroke even without cardiac risk factors.
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