title: Childhood-onset eosinophilic granulomatosis with polyangiitis (formerly Churg-Strauss syndrome): a contemporary single-center cohort.
abstract: OBJECTIVE
  To date only 38 cases of childhood-onset eosinophilic granulomatosis with polyangiitis (cEGPA; formerly Churg-Strauss syndrome) have been reported. Additional patients with cEGPA could enhance the understanding of this rare and life-threatening condition. Our objectives were (1) to determine the frequency of specific organ system involvement; (2) to examine initial therapeutic regimen; and (3) to document disease and therapy-related morbidity in a contemporary cohort of patients with cEGPA.
  
  
  METHODS
  Retrospective review of patients evaluated at the Cleveland Clinic between 2003 and 2011 who met either American College of Rheumatology or Lanham criteria for EGPA and whose age was < 18 years at symptom onset.
  
  
  RESULTS
  Nine patients (8 female; 7 white) were identified. Median age at onset of rhinitis/asthma symptom was 13 years and median age at diagnosis of cEGPA was 15 years. All patients demonstrated eosinophilia, upper airway disease (allergic rhinitis, chronic sinusitis, and/or nasal polyps), and pulmonary involvement. Other frequently involved organ systems included musculoskeletal (67%), gastrointestinal (67%), cutaneous (67%), neurologic (56%), and cardiac (44%). Antineutrophil cytoplasmic antibody (ANCA) serologies were negative in all patients. The medications used most frequently for initial therapy included oral (44%) or intravenous corticosteroids (56%) and azathioprine (67%). Disease or therapeutic complications occurred in half of the cohort and included heart failure, stroke, and sequela from longterm, high-dose steroids.
  
  
  CONCLUSIONS
  Eosinophilia, in combination with upper airway, pulmonary, musculoskeletal, neurologic, and cardiac manifestations, is frequently observed in cEGPA. ANCA titers are often negative. Steroids are the mainstay of initial therapy but steroid-related side effects occur regularly.
authors: Respiratory Institute, Department of Allergy and Immunology, Cleveland, OH, USA.
authors: Samantha
authors: S
authors: Gendelman
authors: Andrew
authors: A
authors: Zeft
authors: Steven J
authors: SJ
authors: Spalding
mesh_terms: D000293:Adolescent; D000305:Adrenal Cortex Hormones / Q000627:therapeutic use; D019268:Antibodies, Antineutrophil Cytoplasmic / Q000276:immunology; D001249:Asthma / Q000175:diagnosis* / Q000188:drug therapy / Q000276:immunology; D002648:Child; D015267:Churg-Strauss Syndrome / Q000175:diagnosis* / Q000188:drug therapy / Q000276:immunology; D005260:Female; D006801:Humans; D007166:Immunosuppressive Agents / Q000627:therapeutic use; D008297:Male; D011379:Prognosis; D012189:Retrospective Studies
chemical_list: D000305:Adrenal Cortex Hormones; D019268:Antibodies, Antineutrophil Cytoplasmic; D007166:Immunosuppressive Agents
keywords: ANTINEUTROPHIL CYTOPLASMIC ANTIBODIES; CHURG-STRAUSS SYNDROME; COHORT STUDY; EOSINOPHILIC GRANULOMATOSIS WITH POLYANGIITIS; PEDIATRIC VASCULITIS