title: Common variable immunodeficiency: diagnosis and management.
abstract: OBJECTIVE
  Common variable immunodeficiency is a heterogeneous syndrome characterized by humoral immunodeficiency, recurrent bacterial infections, and a variety of immunologic abnormalities. The goal of this article is to review the pathogenesis, clinical manifestations, diagnosis, and management of common variable immunodeficiency.
  
  
  METHODS
  References are limited to the English language literature. Sources include computerized databases and bibliographies of recent articles and books.
  
  
  METHODS
  References that made important contributions to our understanding of the pathogenesis, clinical manifestations, diagnosis, and treatment of this disease were selected for inclusion in this review.
  
  
  CONCLUSIONS
  Common variable immunodeficiency is an idiopathic state of immune dysregulation that results in impaired antibody synthesis and the development of recurrent bacterial infections. This syndrome is also associated with a variety of autoimmune and neoplastic disorders. Effective management of these patients includes intravenous immunoglobulin replacement, vigorous treatment of infections, and readiness to promptly evaluate and treat unusual autoimmune and neoplastic complications should they appear.
authors.affiliation: Mucosal Immunity Section, Laboratory of Clinical Investigation, National Institute of Allergy and Infectious Disease, National Institutes of Health, Bethesda, Maryland.
authors.forename: E M
authors.initials: EM
authors.lastname: Eisenstein
authors.forename: M C
authors.initials: MC
authors.lastname: Sneller
mesh_terms: D017074:Common Variable Immunodeficiency / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy*; D006801:Humans