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| __NOTOC__
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| {{Churg-Strauss syndrome}}
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| {{CMG}}{{APM}}{{AE}}{{KW}}
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| ==Overview==
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| According to the American College of Rheumatology (ACR), Eosinophilic granulomatosis with polyangiitis is classified using 6 criteria.
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| ==Classification==
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| According to the 2012 Revised International Chapel Hill Consensus Conference on Nomenclature of Vasculitides<ref name="pmid23045170">{{cite journal| author=Jennette JC, Falk RJ, Bacon PA, Basu N, Cid MC, Ferrario F et al.| title=2012 revised International Chapel Hill Consensus Conference Nomenclature of Vasculitides. | journal=Arthritis Rheum | year= 2013 | volume= 65 | issue= 1 | pages= 1-11 | pmid=23045170 | doi=10.1002/art.37715 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=23045170 }} </ref>, Eosinophilic Granulomatosis with Polyangitis (formerly known as Churg-Strauss' syndrome) can be considered a variant of the ANCA associated vasculitides of the small vessels. The Chapel Hill Consensus Conference however does not propose any diagnostic or classification criteria. Therefore, the diagnostic criteria proposed by the American College of Rheumatology (ACR) in 1990 on Eosinophilic granulomatosis with polyangiitis is still being used to distinguish the disease.
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| The presence of 4 out of the 6 diagnostic criteria has a reported sensitivity of 85% and a specificity of 99.7% for the diagnosis of Eosinophilic granulomatosis with polyangiitis<ref name="pmid2202307">{{cite journal| author=Masi AT, Hunder GG, Lie JT, Michel BA, Bloch DA, Arend WP et al.| title=The American College of Rheumatology 1990 criteria for the classification of Churg-Strauss syndrome (allergic granulomatosis and angiitis). | journal=Arthritis Rheum | year= 1990 | volume= 33 | issue= 8 | pages= 1094-100 | pmid=2202307 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=2202307 }}</ref><ref name="pmid25404930">{{cite journal| author=Gioffredi A, Maritati F, Oliva E, Buzio C| title=Eosinophilic granulomatosis with polyangiitis: an overview. | journal=Front Immunol | year= 2014 | volume= 5 | issue= | pages= 549 | pmid=25404930 | doi=10.3389/fimmu.2014.00549 | pmc=4217511 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=25404930 }} </ref>. They are:
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| {| class="wikitable"
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| !American College of Rheumatology (ACR) Classification of Eosinophilic granulomatosis with polyangiitis
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| |Asthma
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| |-
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| |Eosinophilia > 10%
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| |-
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| |Neuropathy (mononeuropathy or polyneuropathy)
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| |-
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| |Pulmonary infiltrate, non fixed
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| |-
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| |Paranasal sinus abnormality
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| |-
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| |Biopsy that shows extravascular eosinophil infiltration
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| |}
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| 4 out of the 6 criteria are needed to distinguish Eosinophilic granulomatosis with polyangiitis from other vasculitides.
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| ==References==
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| {{Reflist|2}}
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| [[Category:Disease]]
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| [[Category:Pulmonology]]
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| [[Category:Autoimmune diseases]]
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| [[Category:Rheumatology]]
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| [[Category:Needs content]]
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| {{WH}}
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| {{WS}}
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