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Idiopathic Anaphylaxis: Total Experience with 225 Patients

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Idiopathic anaphylaxis (IA) is defined as anaphylaxis with no identifiable precipitating agent or event. Episodes of IA can be life threatening, and onset of episodes is unpredictable and usually recurrent. The epidemiologic features and clinical course of 225 patients diagnosed with IA and managed according to the described protocol with prednisone, H1-antagonists, and  adrenergic agents were evaluated. There were no fatalities from IA in our series. There was a sevenfold reduction in the average rate of episodes requiring emergency care after initiation of pharmacologic management. Ninety five of 147 patients being observed are in remission, defined as absence of episodes for 1 year without corticosteroid therapy. During 636 patient years of observation, no inciting cause of anaphylaxis or alternative organic disease was defined. The diagnosis of IA was highly reliable in this series. Long-term prognosis is good, with the majority of patients experiencing remission.
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Document Type: Research Article

Publication date: 01 January 1992

More about this publication?
  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

    Articles marked "F" offer free full text for personal noncommercial use only.

    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
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