Πέμπτη 28 Φεβρουαρίου 2019

Seizure as the Presenting Symptom for Atypical Hemolytic Uremic Syndrome

Publication date: Available online 27 February 2019

Source: The Journal of Emergency Medicine

Author(s): Sandy Chan, Adam R. Weinstein

Abstract
Background

Atypical hemolytic uremic syndrome (aHUS) is a complement-mediated disease manifesting in thrombocytopenia, microangiopathic hemolytic anemia, and acute kidney injury. It has a higher incidence of extrarenal manifestations, including central nervous system findings like seizure or stroke, pancreatitis, and cardiac manifestations.

Case Report

We present a case of an unimmunized 14-month-old girl presenting with generalized seizure and ultimately diagnosed with aHUS.

Why Should an Emergency Physician Be Aware of This?

These atypical neurological symptoms can cause the diagnosis to be commonly missed in the emergency department. The etiology of approximately 60% of patients with aHUS can be attributed to genetic mutations in complement regulators including factor H, membrane cofactor protein, factor I, activator factor B, or C3. Although previously treated with plasma transfusion and immunosuppressants, eculizumab is a newer treatment that has been changing prognosis and management of aHUS, but it should be administered within 48 h of symptom onset for best efficacy.



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