Spontaneous Extradural Hematoma in a Sickle Cell Anemia Patient with Hyperinflammation and Thrombotic Microangiopathy Successfully Treated with Eculizumab: A Case Report and Review of the Literature.
Journal of neurological surgery. Part A, Central European neurosurgery(2024)
摘要
BACKGROUND:The event of extradural hematoma in the absence of head trauma is a rare central nervous system complication of sickle cell disease. We report here a case of spontaneous extradural hematoma in a patient being treated for sickle cell vasoocclusive crisis complicated by hyperinflammation and thrombotic microangiopathy. The significance of inflammation as an integral component of the pathomechanism of vasoocclusive crisis in patients with sickle cell disease and the role of heme in activating the complement system's alternative pathway are highlighted in this case report.
CASE PRESENTATION:A teenage patient with sickle cell disease developed a spontaneous right parietal extradural hematoma while receiving treatment for sickle cell vasoocclusive crisis. The concurrent events of hyperinflammation, disseminated intravascular coagulation, hyperhemolysis syndrome, thrombotic microangiopathy, and refractory postoperative bleeding complicated this patient's clinical course after surgical evacuation of extradural hematoma. This patient was subsequently treated with eculizumab and improved in the days following.
CONCLUSION:Treatment with the anti-C5 monoclonal antibody eculizumab, which targets and inhibits terminal complement system activation, reversed the deleterious cascade of events in this patient with sickle cell disease.
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