Evans Syndrome Follow-up
- Author: Prasad Mathew, MBBS, DCh; Chief Editor: Robert J Arceci, MD, PhD more...
Further Inpatient Care
- Patients admitted for severe anemia or thrombocytopenia should have respiratory and cardiovascular functions stabilized first; receive blood transfusions, if needed, after consultation with a pediatric hematologist; and then be started on therapy with either intravenous immunoglobulin (IVIG) or steroids.
- In classic cases (ie, patients who present with either autoimmune hemolytic anemia [AIHA] or immune thrombocytopenia), bone marrow aspiration is not indicated.
- When a patient has pancytopenia at presentation, or when diagnosis of immune thrombocytopenia is unconfirmed, bone marrow aspiration findings may help exclude an infiltrative pathology or an aplastic marrow.
- Bone marrow examination may be indicated in unusual cases, in cases refractory to treatment, or in cases when a peripheral blood smear suggests immature myeloid cells.
- A patient may be discharged if clinically stable (eg, with rising blood counts).
Further Outpatient Care
- Weekly follow-up is recommended with blood counts and physical examinations until counts become stable or return to reference ranges.
- Subsequent follow-up care may be arranged at intervals of 2-4 weeks.
- More frequent follow-up care may be indicated for patients with clinical or laboratory signs of recurrence (eg, when steroids are tapered).
Complications
- A risk of hemorrhage with severe thrombocytopenia is noted.
- The national survey reported hemorrhage in 29% of patients.[10]
- This study reported 2 patient deaths from severe GI bleeding and a third death from an acute intracranial bleed.
- Patients with neutropenia also risk serious infection.
Prognosis
- The characteristic clinical course of Evans syndrome has periods of remission and exacerbation, with variable and often disappointing responses to therapy.
- Recurrences of thrombocytopenia and anemia are common, as are episodes of hemorrhage and serious infections. Evans syndrome sometimes is fatal.
- Treatment occasionally provides complete resolution. In the national study on Evans syndrome, after a median follow-up of 3 years (range, 4 mo to 18.9 y), 48% had active disease and continued to be treated, 12% had persistent disease but were receiving no treatment, and 33% had no evidence of disease for periods ranging from 1.5-5 years (median, 1 y).[10] Long-term survival data are limited. In patients followed for a median range of 3-8 years, the mortality ranged from 7-36%. Causes of death were mainly due to hemorrhage or sepsis. None of these patients developed any malignancy.
- Patients rarely do well without treatment.
- In the national survey, each patient received a median of 5 (range, 1-12) treatment modalities, either in combination or sequentially.[10]
- Only one patient received no treatment; this patient's hemoglobin levels were 9-13.2 g/dL and platelet counts were 9-208,000/µL during follow-up examinations over 11 years.
Patient Education
- Educate patients and their families about the chronic nature of this condition, which can include periods of remission and exacerbation.
- Explain potential adverse effects of medications, especially long-term steroids, each time a steroid is used to treat an exacerbation.
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