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Application of the new PRINTO classification criteria for juvenile idiopathic arthritis in a sample of Portuguese patients.

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Title: Application of the new PRINTO classification criteria for juvenile idiopathic arthritis in a sample of Portuguese patients.
Authors: Catarino, S.1 sara.ccat@gmail.com, Nunes, J.1, Ganhão, S.2, Aguiar, F.2,3, Rodrigues, M.2,3, Brito, I.2,3
Source: ARP Rheumatology. Jan-Mar2024, Vol. 3 Issue 1, p11-17. 7p.
Subjects: JUVENILE idiopathic arthritis, ANTINUCLEAR factors, RHEUMATOID arthritis, UVEITIS treatment, MEDICAL records, RHEUMATISM, PSORIATIC arthritis, RHEUMATOLOGY
Abstract: Background: The International League of Associations for Rheumatology (ILAR) classification system for juvenile idiopathic arthritis (JIA) does not depict homogenous subgroups of disease. As to unify our language with the adult rheumatic diseases, the Pediatric Rheumatology International Trials Organization (PRINTO) is attempting to revise these criteria. Objective: To reclassify a JIA sample according to the new provisional PRINTO subsets: systemic JIA (sJIA), RFpositive JIA (RF-JIA), early-onset ANA-positive JIA (eoANA-JIA), enthesitis/spondylitis-related JIA (ESR-JIA), "other JIA" and "unclassified JIA". Methods: Retrospective study including JIA patients followed in a Pediatric Rheumatology Unit at a university hospital. Medical records were reviewed, and patients were reclassified as per the provisional PRINTO criteria. Results: Of a total of 104 patients, 41 (39.4%) were reclassified as "other JIA", 36 (34.6%) as eoANA-JIA, 15 (14.4%) as ESR-JIA, 8 (7.7%) as sJIA and 4 (3.8%) as RF-JIA. More than 90% of the oligoarticular JIA were reclassified into either eoANA-JIA or "other JIA". Only one negative RF polyarticular JIA converted to RF-JIA due to the presence of a positive anti-citrulinated peptide antibody (ACPA). The psoriatic arthritis (PsA) subgroup disappeared into eoANA-JIA (25%), ESR-JIA (25%) or "other JIA" (50%). There were significant differences in age of onset, but not on the gender ratio or uveitis presence. Antinuclear antibody was more frequent in females (p=0.035) and younger patients (p<0.001). Conclusion: The number of affected joints and PsA features elapsed in favour of laboratory RF, ACPA and ANA traits. PsA and oligoarticular JIA were abolished. The "other JIA" entity is heterogenous and prevalent, claiming reformulation. [ABSTRACT FROM AUTHOR]
Copyright of ARP Rheumatology is the property of Sociedade Portuguesa de Reumatologia and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Application of the new PRINTO classification criteria for juvenile idiopathic arthritis in a sample of Portuguese patients.
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Catarino%2C+S%2E%22&quot;&gt;Catarino, S.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;i&gt; sara.ccat@gmail.com&lt;/i&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Nunes%2C+J%2E%22&quot;&gt;Nunes, J.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Ganh&#227;o%2C+S%2E%22&quot;&gt;Ganh&#227;o, S.&lt;/searchLink&gt;&lt;relatesTo&gt;2&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Aguiar%2C+F%2E%22&quot;&gt;Aguiar, F.&lt;/searchLink&gt;&lt;relatesTo&gt;2,3&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Rodrigues%2C+M%2E%22&quot;&gt;Rodrigues, M.&lt;/searchLink&gt;&lt;relatesTo&gt;2,3&lt;/relatesTo&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Brito%2C+I%2E%22&quot;&gt;Brito, I.&lt;/searchLink&gt;&lt;relatesTo&gt;2,3&lt;/relatesTo&gt;
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22ARP+Rheumatology%22&quot;&gt;ARP Rheumatology&lt;/searchLink&gt;. Jan-Mar2024, Vol. 3 Issue 1, p11-17. 7p.
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  Data: &lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22JUVENILE+idiopathic+arthritis%22&quot;&gt;JUVENILE idiopathic arthritis&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22ANTINUCLEAR+factors%22&quot;&gt;ANTINUCLEAR factors&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22RHEUMATOID+arthritis%22&quot;&gt;RHEUMATOID arthritis&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22UVEITIS+treatment%22&quot;&gt;UVEITIS treatment&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22MEDICAL+records%22&quot;&gt;MEDICAL records&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22RHEUMATISM%22&quot;&gt;RHEUMATISM&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22PSORIATIC+arthritis%22&quot;&gt;PSORIATIC arthritis&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22RHEUMATOLOGY%22&quot;&gt;RHEUMATOLOGY&lt;/searchLink&gt;
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Background: The International League of Associations for Rheumatology (ILAR) classification system for juvenile idiopathic arthritis (JIA) does not depict homogenous subgroups of disease. As to unify our language with the adult rheumatic diseases, the Pediatric Rheumatology International Trials Organization (PRINTO) is attempting to revise these criteria. Objective: To reclassify a JIA sample according to the new provisional PRINTO subsets: systemic JIA (sJIA), RFpositive JIA (RF-JIA), early-onset ANA-positive JIA (eoANA-JIA), enthesitis/spondylitis-related JIA (ESR-JIA), &quot;other JIA&quot; and &quot;unclassified JIA&quot;. Methods: Retrospective study including JIA patients followed in a Pediatric Rheumatology Unit at a university hospital. Medical records were reviewed, and patients were reclassified as per the provisional PRINTO criteria. Results: Of a total of 104 patients, 41 (39.4%) were reclassified as &quot;other JIA&quot;, 36 (34.6%) as eoANA-JIA, 15 (14.4%) as ESR-JIA, 8 (7.7%) as sJIA and 4 (3.8%) as RF-JIA. More than 90% of the oligoarticular JIA were reclassified into either eoANA-JIA or &quot;other JIA&quot;. Only one negative RF polyarticular JIA converted to RF-JIA due to the presence of a positive anti-citrulinated peptide antibody (ACPA). The psoriatic arthritis (PsA) subgroup disappeared into eoANA-JIA (25%), ESR-JIA (25%) or &quot;other JIA&quot; (50%). There were significant differences in age of onset, but not on the gender ratio or uveitis presence. Antinuclear antibody was more frequent in females (p=0.035) and younger patients (p&lt;0.001). Conclusion: The number of affected joints and PsA features elapsed in favour of laboratory RF, ACPA and ANA traits. PsA and oligoarticular JIA were abolished. The &quot;other JIA&quot; entity is heterogenous and prevalent, claiming reformulation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: &lt;i&gt;Copyright of ARP Rheumatology is the property of Sociedade Portuguesa de Reumatologia and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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        Value: 10.63032/jxnd6393
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        Text: English
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      – SubjectFull: JUVENILE idiopathic arthritis
        Type: general
      – SubjectFull: ANTINUCLEAR factors
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      – SubjectFull: RHEUMATOID arthritis
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      – SubjectFull: RHEUMATISM
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      – SubjectFull: RHEUMATOLOGY
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      – TitleFull: Application of the new PRINTO classification criteria for juvenile idiopathic arthritis in a sample of Portuguese patients.
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              Text: Jan-Mar2024
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              Y: 2024
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